Figure ABCD is reflected across the x-axis.
What are the coordinates of A, B, C, and D
Enter your answer by filling in the boxes.

Figure ABCD Is Reflected Across The X-axis.What Are The Coordinates Of A, B, C, And DEnter Your Answer

Answers

Answer 1

Image of coordinate A about x axis is A’=(-1,-4)

Image of coordinate B about x axis is B’=(-5,-8)

Image of coordinate C about x axis is C’=(-5,-4)

Image of coordinate D about x axis is D’=(-4,-2)

Define reflection

Reflection, in mathematics and geometry, is a transformation that produces a mirror image of a shape or object across a line or a plane. The line or plane across which the reflection occurs is called the line of reflection or the mirror line.

Reflected across the x axis(x,y)=(x,-y)

Coordinate of A=(-1,4)

Image of coordinate A about x axis is A’=(-1,-4)

Coordinate of B=(-5,8)

Image of coordinate B about x axis is B’=(-5,-8)

Coordinate of C=(-5,4)

Image of coordinate C about x axis is C’=(-5,-4)

Coordinate of D=(-4,2)

Image of coordinate D about x axis is D’=(-4,-2)

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Related Questions

Pls answer this line problem

Pls answer this line problem

Answers

Answer:

2 1/4

Step-by-step explanation:

how am i supposed to explain this (wait until someone else answers aswell im not that smart)

In an insect colony, there are 270 insects after 7 days. If there were initially 80 insects, how long will it take the population to grow to 700 insects?

Answers

Step-by-step explanation:

Total insects = 270

Days = 7

If 80 insects to 700 insects

Days = 700 ÷ 80 = 8.75

It will take 8.75 days

Find the required monthly payment to accumulate $32,000 in 10 years at an APR of 7.9% compounded monthly for an annuity.

Find the required monthly payment to accumulate $32,000 in 10 years at an APR of 7.9% compounded monthly

Answers

Step-by-step explanation:

To calculate the required monthly payment to accumulate $32,000 in 10 years at an APR of 7.9% compounded monthly for an annuity, we can use the formula for the present value of an annuity due:

PV = PMT × ((1 - (1 + r/n)^(-n×t)) / (r/n)) × (1 + r/n)

where:

- PV is the present value of the annuity due ($32,000)

- PMT is the monthly payment we want to find

- r is the annual interest rate (7.9%)

- n is the number of times interest is compounded per year (12 for monthly compounding)

- t is the number of years (10)

PMT = PV / ((1 - (1 + r/n)^(-n×t)) / (r/n)) × (1 + r/n) = **$292.07**

Therefore, the required monthly payment to accumulate $32,000 in 10 years at an APR of 7.9% compounded monthly for an annuity is **$292.07**.

Using trial and improvement, find the solution between 3 and 4 for the following equation: 2 x 3 − x 2 = 100 Give your answer rounded to 1 DP.

Answers

The solution is, After decreasing £16870 by 3% we get, £16363.90.

Here, we have,

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%".

First, find the percentage of £16870 by 3%

%value = 3% * 16870

           = (3 / 100) * 16870

           = 506.1

Now, just minus with actual value

New value = actual value - %value

We know, actual value = £16870 and %value = 506.1

so, New value = 16870 - 506.1

we get, New value = £16363.90

Therefore, After decreasing £16870 by 3% we get, £16363.90

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complete question:

Decrease £16870 by 3%

Give your answer rounded to 2 DP.

An arithmetic series contains 14 numbers. The first number is 12. The last number is 38. What is the sum of the series?
312
350
494
700

Answers

Answer: The answer is B:350

Step-by-step explanation:

edge

Answer:

B

Step-by-step explanation:

Got it right

Find the area of the shaded region. Round your answer to two decimal places.

Find the area of the shaded region. Round your answer to two decimal places.

Answers

The area of the shaded region is x=245 feet for both rectangle and circle.

What is meant by area?

The quantity area expresses the extent of a region on a plane or a curved surface. The area of a plane region or plane area refers to the area of a form or planar lamina, whereas surface area refers to the area of an open surface or the boundary of a three-dimensional object. Area can be defined as the amount of material of a given thickness required to make a model of the shape, or the amount of paint required to cover the surface with a single coat. It is the two-dimensional equivalent of the length of a curve or the volume of a solid.

The area of a shape can be calculated.

Area of shaded region=Area of rectangle-1/2(Area of circle)

=L×B-1/2(πr²)

=23×14-1/2((22/7)×7×7)

=322-77

=245 feet

Therefore, the area of the shaded region=245 feet

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if a₁=3 and aₙ=5aₙ-₁ then find the value of a₅

Answers

Answer:

The value of a₅ is 1875.

Step-by-step explanation:

Given:

a₁ = 3

aₙ = 5aₙ₋₁

To find the value of a₅, we can apply the recursive formula to compute each term successively:

Step 1: Compute a₂

a₂ = 5a₁ = 5(3) = 15

Step 2: Compute a₃

a₃ = 5a₂ = 5(15) = 75

Step 3: Compute a₄

a₄ = 5a₃ = 5(75) = 375

Step 4: Compute a₅

a₅ = 5a₄ = 5(375) = 1875

What is the solution to the equation 82 (4x + 2) = 10?​

Answers

Answer:

x = -77/164

Step-by-step explanation:

82(4x+2) = 10

328x+164 = 10

328x = -154

x = -77/164

Answer:

\(-\frac{77}{164}\)

Step-by-step explanation:

Apply the distributed property: 82 × 4x = 328x, 82 × 2 = 164Re-write the problem: 328x + 164 = 10Subtract 164 from each side, so it now looks like this: 328x = -154Divide each side by 328 to cancel out the 328 next to x. It should now look like this: \(x = -\frac{77}{164}\)  

I hope this helps!

Find the area of the shaded region if the dimensions of the unshaded region are 14ft x 18ft . Use 3.14 for π as necessary. Answer Asap Please! That would be greatly appreciated! PLEASE HELP ME ON THIS ASAP FIRST ANSWER GETS BRAINLIEST

Find the area of the shaded region if the dimensions of the unshaded region are 14ft x 18ft . Use 3.14

Answers

Answer:

867.44 ft²

Step-by-step explanation:

The area of the shaded region is A = 196π + 252.

We have the dimensions of the unshaded region are 14ft x 18ft.

We have to find the area of shaded region.

What is the area of a Rectangle and a Circle?

The area of a rectangle is -

A(R) = Length x Breadth = L x B

and the area of Circle is -

A(C) = \(\pi r^{2}\)

According to the question -

Dimensions of the unshaded region -

L = 18ft

B = 14ft

Area of the shaded region (A) = Total Area - Area of Rectangle

Total Area = Area of 2 semicircles of radius (7 + 7) 14ft + Area of rectangle of length 18ft and breadth 28ft.

Total Area = ( \(2\times \frac{1}{2}\times \pi \times14 \times 14\) ) + ( 18 x 28)

Total Area = 196π + 504

Area of the shaded region (A) = 196π + 504 - 252 = 196π + 252

Hence, the area of the shaded region is A = 196π + 252.

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(6.2 x 10²) x (3.5 x 10³)

Answers

Answer:

\(21.7 x 10^5\)

Step-by-step explanation:

(6.2 x 10²) x (3.5 x 10³)

First, multiply the coefficients: 6.2 x 3.5 = 21.7.

Then, add the exponents: 10² x 10³ = 10^(2+3) = 10^5.

Therefore, the result is 21.7 x 10^5.

Answer:

3286000

Step-by-step explanation:

(6.2 x 10) x (3.5 x 10)

Solve the following pair of simultaneous equations
X + y = 13
4x + y = 31

Answers

Answer:

x = 6       y = 7

Step-by-step explanation:

You can isolate y using the first equation and get y = 13 - x.

Plug in for y using the second equation.

4x + (13 - x) = 31       Solve for x

4x - x = 18

3x = 18

x = 6                  Plug in for x using the first equation.

(6) + y = 13         Solve for y

y = 7

I hope this helped and please mark me as brainliest!

Answer:

The solution is (6, 7)

Step-by-step explanation:

Let's solve this system by elimination by addition and subtraction.  To accomplish this, subtract each term of the first equation by the corresponding term beneath it (e. g., subtract x in the first term from 4x in the second term):

3x = 18, which leads to x = 6.

Now substitute 6 for x in the first equation.  We get:  6 + y = 13, so y must be 7.

Substituting 7 for y in the second equation, we get 4x + 7 = 31, or 4x = 24.

Then x must be 6, and so

The solution is (6, 7)

What is the x-intercept for function f?

f(x) = −23x + 8

Answers

The x-intercept for function f(x) = −23x + 8 is (8/23, 0)

In this question, we have been given a function f(x) = −23x + 8

We need to find the x-intercept for given function f(x)

Let f(x) = y

So, given function becomes,

y = −23x + 8

To find the x-intercept, set y = 0,

0 = -23x + 8

23x = 8

x = 8/23

Therefore, the x-intercept for function f(x) = −23x + 8 is (8/23, 0)

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6+ 4/39 as a mixed number

Answers

Answer:

6 4/39

Step-by-step explanation:

The above is the answer because you are just adding a whole number and a fraction which is what mixed numbers/mixed fractions are.

Answer:

6 4/39

Step-by-step explanation:

So first you would make 6 into a fraction by adding a 1. so the equation is now 6/1 + 4/39. then you would get a common multiple for the denominators. For this it would be 39. so 6 X 39 = 234. now the problem is 234/39 + 4/39. Add

238/39 divide for simplist form and you have 6 and 4/39s.

Graph the line with slope 2 passing through the point (-5, 2)

Answers

Answer:

Equation is y=2x+12

The image is a picture of the graph(it's not the best but it's something.

Graph the line with slope 2 passing through the point (-5, 2)

Ella needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3 hours and charged her $61 for parts. The total was $226. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.

Answers

Answer:

Step-by-step explanation:

The cost of the labor per hour will be $35.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Ella needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 4 hours and charged her $85 for parts. The total was $225.

The expression will be formed as below to get the value of x.

4x+85 =225

x =35

Therefore, the cost of the labor per hour will be $35.

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Graph the system of equations on your graph paper to answer the question.

{y=x−4y=−x+6



What is the solution for this system of equations?

Answers

Answer: (5 , 1)


Step-by-Step explanation:

hihi your problem is a system of question y = x-4 and  y = -x+6 okay so  graph them both normally and then find the point where they intersect which is gonna be a coordinate point, and that's your solution !!

y = x-4
the y intersect is going to be 4
the slope is a positive 1 , going up to the right, through the positive quadrant, line is facing to the right

y = -x+6
the y intersect is going to be -6
the slope is going to be a -1 , following up the opposite way the line is going to face the left

once you graph them both you'll see the point of intersection, the solution
make sure you drew your lines very clearly !!!!

the solution is  x = 5 and y = 1 which is also (5 , 1)

hopefully this was helpful !

The sixth-grade class is going to the local art museum. There are 46 students in the class. The total cost of the tickets for all the students is $379.50. What is the cost of one student ticket?

Answers

8.25 is the cost of one student ticket.

Each ticket cost $8.25

Step-by-step explanation:

Divide 379.50 by 46 to get 8.25

379.50/36=8.25

Double check

8.26 x 46 = 379.50

Target buys a pair of shoes for 20, but they sell it to the public for 35. what is the percent of change that target marks the shoes up for

Answers

Answer:

75%

Step-by-step explanation:

To find the percent of change that Target marks the shoes up for, you need to calculate the difference between the cost of the shoes to Target and the price at which they sell it to the public, and then divide that difference by the cost of the shoes to Target. Finally, you need to multiply the result by 100 to express the answer as a percentage.

Using this formula, the percent of change that Target marks the shoes up for is:

(35 - 20) / 20 * 100 = 15 / 20 * 100 = 0.75 * 100 = 75%

This means that Target marks the shoes up by 75% of their cost.

Roselyn is driving to visit her family, who live 150 kilometers away. Her average speed is 60 kilometers per hour. The car's tank has 20 liters of fuel at the beginning of the drive, and its fuel efficiency is 6 kilometers per liter. Fuel costs 0.60 dollars per liter. How long can Roselyn drive before she runs out of fuel?

Answers

Roselyn can drive a distance until she runs out of fuel for a time of 2.5 hours or until she spends all the fuel, whichever comes first.Roselyn can travel 120 km before running out

Distance travelled with 20 l of petrol in solution and final answer.

Roselyn's average speed is 60 kilometers per hour, and she needs to travel 150 kilometers to reach her family's place. Therefore, she will require a total of 150/60 = 2.5 hours to complete the journey.

The car's fuel efficiency is 6 kilometers per liter, meaning it consumes 1/6 liters of fuel per kilometer. To determine the total fuel required, we multiply the fuel consumption rate by the total distance: 150 * (1/6) = 25 liters of fuel.

Since the car's tank has 20 liters of fuel at the beginning of the drive, Roselyn will need an additional 25 - 20 = 5 liters of fuel to complete the journey.

As fuel costs 0.60 dollars per liter, Roselyn will need to spend a total of 5 * 0.60 = 3 dollars to purchase the necessary fuel.

Therefore, Roselyn can drive until she runs out of fuel for a time of 2.5 hours or until she spends all the fuel, whichever comes first.

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What is (2x + 3)??
(2x + 3)?
1x2 +

What is (2x + 3)??(2x + 3)?1x2 +

Answers

Answer:

4x^2+12x+9

Step-by-step explanation:

(2x+3)(2x+3)

Multiply 2x by 2x first.

then 2x by 3

and then repeat that step and you add like terms

then recieve your answer.

Answer:

4x^2 + 12x + 9

Step-by-step explanation:

Actually, you are to find (2x + 3)^2, which is "the square of 2x + 3."

2x + 3 is a binomial.  There is a formula for the square of a binomial:

(a + b)^2 = a^2 + 2ab + b^2

Following this pattern,

(2x + 3)^2 becomes:

[2x]^2 + 2[2x][3] + [3^2], or

4x^2 + 12x + 9

Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeh plllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllls

Heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeh

Answers

i think most of them are correct, you might wanna doubke check though! :)

PLSSS HELP ME 14 POINTS

PLSSS HELP ME 14 POINTS

Answers

The transformation of f(x) to g(x) is :

Vertically compressed by a factor of 9Shifted down by 2

Describing the transformation of the functions

From the question, we have the following parameters that can be used in our computation:

The functions f(x) and g(x)

Where, we have

f(x) = x

g(x) = 1/9x - 2

The graph of the functions f(x) and g(x) are added as an attachment

And we have the transformations to be:

Vertically compressed by a factor of 9Shifted down by 2

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PLSSS HELP ME 14 POINTS

A company has to buy computers and printers. Each computer, x, costs $560 and each printer, y, costs $340. If the company spends $6,540 and buys a total of 16 machines, how many of each did it buy?

Enter a system of equations to represent the situation, then solve the system.

The system of equations is __________ and ____________.

The company bought __________computers and _________printers.

Answers

Answer:

yrsdhhdjdbzbdvbs. Es 560

PLZ answer my question for God's sake​

PLZ answer my question for God's sake

Answers

Answer:

a. 2x+3z

b. 7xy

c.   \(\frac{3ab}{2c}\)

d. 10z-6q

e. Subtract xy from the sum of p and q.

f.  Divide the sum of 3 and y by 5.

g. Subtract 2c from the square root of b.

h. 3x ... 4x ...

i. 3y ... y+5 ... 5y+5

j. length ... 3 ... breadth ... 8b ... 3b²

Step-by-step explanation:

Sum means addition. 2x + 3z

Product means multiplication. 7y × x = 7xy

Divide 3ab by 2c. 3ab ÷ 2c = \(\frac{3ab}{2c}\)

Subtract 6q from 10z.  10z-6q

(p+q)-xy : Subtract xy from the sum of p and q.

(3+y)/5: Divide the sum of 3 and y by 5.

\(\sqrt{b}\)- 2c: Subtract 2c from the square root of b.

Let the number of boys be x. Girls are three times more so 3 × x = 3x. The total would be 3x + x = 4x.

Let Nora's age be y. Father is three times more so 3 × y = 3y. Brother is 5 more so would be y+5. The total would be y + 3y + y + 5 = 5y+5

3b is three times more than b, the breadth. Thus, the length is three times more than the breadth since it is 3b. The perimeter would be 3b + b + 3b + b = 8b. The area would be 3b × b = 3b²

Rollaway Skates
Number
of People
0
1
2
3
4
5
6
7
8
Cost
$0
$5
$10
$15
$20
$25
$30
$35
$40
Wheelie's Skates
and Stuff
Number
of People
0
1
2
3
4
5
6
7
8
Cost
$100
$103
$106
$109
$112
$115
$118
$121
$124

Describe when Rollaway Skates is cheaper and when Wheelie's is cheaper.

Answers

Rollaway Skates is cheaper when the number of people is less than or equal to 4. For example, the cost for 2 people at Rollaway Skates is $10, while the cost for 2 people at Wheelie's Skates and Stuff is $106.

Wheelie's Skates and Stuff is cheaper when the number of people is greater than or equal to 5. For example, the cost for 6 people at Rollaway Skates is $30, while the cost for 6 people at Wheelie's Skates and Stuff is $118.

I hope this helps! Do you have any other questions?

A regular hexagon has a perimeter of 120 m. Find its area. Express your answer in the simplest radical form.
A) 1800√3m^2
B) 5√3m^2
C) 600√3m^2
D) 3600√3m^2

Answers

The area of the regular hexagon value calculated using given perimeter of the regular hexagon is equal to option C. 600√3 square meters.

As given in the question,

Perimeter of the regular hexagon is equal to 'P' = 120m

Relation between the area of the regular hexagon 'A' and the perimeter of the regular hexagon 'P is given by :

A = √3 × ( P²/24 )

  = √3 × [(120)²/ 24]

  = √3 × ( 14400 / 24 )

  = √ 3 × 600

 = 600√3 square meters

Therefore, the area of the regular hexagon using the perimeter of the regular hexagon is equal to Option C.  600√3 square meters.

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When two functions have different rates of change, and different initial values, the function with the greater rate of change will have the greater output value for every input value.

Answers

The function with the greater rate of change will have the greater output value for every input value which is true.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The slope of the line is given as,

m = (y₂ - y₁) / (x₂ - x₁)

Let m₁ > m₂ and c₁ > c₂. Then the equations are given as,

y = m₁x + c₁

y = m₂x + c₂

The function with the greater rate of change will have the greater output value for every input value which is true.

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At a local play, student tickets cost $6 each and adult tickets cost $11 each. If ticket sales were $3,000 for 400 tickets, how many students attended the play?

A 120
B 180
C 220
D 280

Answers

There are 280 students attending the play.

What are linear equations?

Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. It is called a "linear equation" for this reason.

Both linear equations with one variable and those with two variables exist.

Given  student tickets cost $6 each and adult tickets cost $11 each,

let a number of students be x and the number of tickets be y

total tickets sold = 400

x + y = 400

and total amount made = $3000

so 6x + 11y = 3000

from equation 1,

y = 400 - x

substitute in the equation,

6x + 11y = 3000

6x + 11(400 - x) = 3000

6x + 4400 - 11x = 3000

-5x = 3000 - 4400

-5x = -1400

x = 1400/5

x = 280

and y = 400 - 280

y = 120

Hence 280 students attended the play.

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Out of 350 students, 315 went
on the class field trip. What
percent of the students did
not go on the class field trip? Hurry! I need the answer asap!

Answers

Answer:

350-315=35

(35÷350)×100

=10%

Answer:

10%

Step-by-step explanation:

I subtracted the number of total students by the ones that went on the field trip.

350 - 315 = 35

35 students did not go on the field trip.

We can turn this into a fraction:

\(\frac{35}{350}\)

\(\frac{35}{350}\) = \(\frac{1}{10}\)

\(\frac{1}{10}\) = 10%

10% of students did not go on the class field trip.

what are the steps to a graph a quadratic function

Answers

You need 3 points to graph a quadratic function.

It is advisable that one of these points be the vertex, because the line of symmetry passes through it

Next, you need to find two other points that lie on the curve, replacing an x-value into the function and calculating the y-value. It is easier if these two points are at the same distance from the line of symmetry.

For example, if the quadratic function is y = (x - 4)² + 3, the vertex is located at (4, 3). Replacing with x = 3 into the equation, we get:

y = (3 - 4)² + 3

y = 1 + 3

y = 4

Replacing with x = 5 into the equation, we get:

y = (5 - 4)² + 3

y = 1 + 3

y = 4

Now, we need to connect the points (3, 4), (4, 3), and (5, 4) with a U shape, as follows:

what are the steps to a graph a quadratic function
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A ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of elevation is 73' 30' 40" what is a synonym for a centrally planned economic system?a.)communist economyb.)command economyc.)specialized economyd.)pure free market economy Please answer the question in the photo (15p each) The expression 28 + 63 is equivalent to1 912 5,73 6/74 13,7 If the Federal Reserve wants to reduce interest rates and increase the velocity of money, it can utilize the open market operations tool by selling government bonds to member banks. True False Which of the following is true regarding the cell theory? Choose all answers that apply: (Choice A) Cells make up atoms. (Choice B) All living things are made of many cells. (Choice C) Cells can only be formed from other cells. (Choice D) Single cells are non-living. Describe the complete role of the acid catalyst in the dehydration of an alcohol. A video store offers two yearly pricing plans: A. $10.00 charge plus $2.50 for each movie rented. B. $4.00 charge (total) for the first 4 movies rented plus $3.00 per movie. How many movies will a person need to rent in order to spend an equal amount of money using either plan? plz help this is worth 30 points 2CH(g) + 5O(g) > 4CO(g) +2HO(g)b. How many moles of HO are produced when 64.0g CH burns in oxygen? When we ingest food containing large molecules such as lipids, carbohydrates,and proteins, these molecules must undergo catabolic reactions whereby enzymessplit these into smaller molecules. This series of reactions isA. absorption.C. chemical digestion.B. secretion.D. mechanical digestion. QUESTION 15 Write the equation of a sine function that has the given characteristics. The graph of y= Vx, shifted 4 units to the left y=-x-4 y = x +4 y = x - 4 Oy= Vx + 4 PLEASE HELP!!! WILL MARK BRAINLIESG!!!!!potassium carbonate (K_2CO_3) has one potassium atom bonded to carbon, and that carbon is also bonded to three oxygens. Their electronegatives are shown in the list:* K: 0.82* C: 2.55* O: 3.44how would you describe the bonds (K-C and C-O) in this molecule?A. K-C is polar covalent, and C-O is nonpolar covalent.B. K-C is ionic, and C-O is nonpolar covalentC. K-C is ionic, and C-O is polar covalentD. K-C is polar covalent, and C-O is polar covalent.substance a reacts spontaneously with substance b at room temperature. Substance a reacts with substance c at room temperature only in the presence of a catalyst. Which statement best explains this difference?A. The reaction between substances a and B has a lower activation energy than the reaction between substances B and CB. The reaction between substances a and B is endothermicC. The reaction between substances a and b is exothermicD. The reaction between substances a and B has a lower relative potential energy than the reaction between substances B and C.endothermic reactions absorb a lot of energy. Exothermic reactions give off a lot of energy. Which type of reaction has a higher activation energy? Which one takes more energy to break up the bonds of the reactants?A. endothermic reactions have a higher activation energy. Endothermic reactions require more energy to break up the bonds of the reactants.B. exothermic reactions have a higher activation energy. Exothermic reactions require more energy to break up the bonds of the reactantsC. endothermic reactions have a higher activation energy. Exothermic reactions require more energy to break up the bonds of the reactantsD. exothermic reactions have a higher activation energy endothermic reactions require more energy to break up the bonds of the reactantselementmolar mass (g/mol)silicon28.09oxygen16.00how many molecules of silicon dioxide (SiO_2) are there in a 15-gram sample?A. 1.503 * 10^23B. 6.022 * 10^23C. 2.049 * 10^23D. 1.251 * 10^23A large room is filled with mouse traps, each trap set with two plastic balls on the arm of the trap. A single plastic ball is thrown into the room, setting off one trap. This causes three plastic balls to be in the air, which then land and set off three other traps, and so on. How could this be evaluated as a model for fission?A. The plastic balls are a good representation of neutrons, but there is no joining of nuclei as happens in fission.B. The plastic balls are a good representation of the energy given off by the nucleus but there is no splitting of nuclei as happens in fission.C. The plastic balls are a good representation of neutrons, but there is no splitting of nuclei as happens in fission.D. The plastic balls are a good representation of the energy given off by the nucleus, but there is no joining of nuclei that happens in fission.A nucleus decays to produce a nucleus with one additional proton. Which type of decay did the nucleus undergo?A. beta-minus decayB. beta-plus decayC. Gamma decayD. Alpha decaywhich type of decay is a form of nuclear fission?A. gamma decayB. alpha decayC. beta-minus decayD. beta-plus decaywhy do some atmospheric gases act as greenhouse gases, while others do not?A. The industrial revolution changed the components of the atmosphere, causing some gases to become greenhouse gases.B. naturally occurring gases do not act as greenhouse gases, well human made gases do.C. non-greenhouse gases are made of only one element, like nitrogen or oxygen.D. greenhouse gases have more than two atoms, allowing them to vibrate and release radiation, warming the atmosphere.which option correctly identifies a cause and consequence of water pollution?A. cause: chlorofluorocarbons consequence: depletion of ozone layerB. cause: runoff of pesticides consequence: global warmingC. cause: particulates consequence: smogD. cause: acid rain consequence: destruction of cropswhich outcome is most likely result of eutrophication of a waterway?A. toxic bacteria in the water supplyB. overpopulation of aquatic plantsC. production of the algae populationD. reduced storm runoffdespite fracking being a controversial process in the fuel industry, it is still used today. Why?A. it reaches hard to get oil and gas depositsB. there is a little environmental harm done to the landC. it is inexpensive to doD. it can be done on lands no one wants Which equation represents the situation below?John owed the bank 7 dollars, but he made 12 dollars. The classic flow is that mission drives business strategy, which in turn drives functional strategy. when the functional strategy then feeds back into the business strategy, experts refer to this as? Dont know how to do this encoding that involves attention to meaning and relating an item to something else based on the following documentation in an acute care record, where would you expect this excerpt to appear? initially the patient was admitted to the medical unit to evaluate the x-ray findings and the rub. he was started on levaquin 500 mg initially and then 250 mg daily. the patient was hydrated with iv fluids and remained afebrile. serial cardiac enzymes were done. the rub, chest pain, and shortness of breath resolved. ekgs remained unchanged. patient will be discharged and followed as an outpatient. Keith is buying a car and is taking out a loan in the amount of $10,000. His choices for the loan are a 5-year loan at 8.00% interest compounded annually and a 6-year loan at 9.00% interest compounded annually. What is the difference in the amount of interest Kieth would have to pay for these two loans? Una was asked to write about predicting population means by taking the means of samples. She recorded a list of some statements generated from her classmates. Which statements are true? Select three choices. The best prediction of the population mean is the value that falls between the least and greatest sample means. It is unlikely that the population mean will be the least or greatest mean from the samples. If the means of different samples are close in number, or have small variation, then they cannot be used to make predictions for the actual population. A more accurate prediction of the population mean can be made by decreasing the number of random samples. To find the range of the sample means, subtract the least value from the greatest value.