Answer:
Step-by-step explanation:
1.
scale factor=12.5/10=1.25
x/16=1.25
x=1.25×16=20
2.
correct.
What is the value of a in the equation 4a+2=14
Answer:
3
Step-by-step explanation:
4a + 2 = 14
-2 -2
4a = 12
4a/4 = 12/4
a = 3
Que número es menor que 2 1/2?
a-6/3
b-7/2
c-3
d-4
Geometry Support 4. Given: 6x-4 = 3x + 8. Prove: x = 4
Answer:
6(4)-4=3(4)+8
24-4=12+8
20=20
Step-by-step explanation:
To prove x=4, substitute four into the equation
6(4)-4=3(4)+8
24-4=12+8
20=20
Therefore x=4 is proved
Answer:
(Answer in Image)
Step-by-step explanation:
6x-4=3x+8
6x-4-3x=3x+8-3x subtract -3x on both sides
3x-4=8
3x-4+4=8+4 add four on both sides
3x=12 simplify
3/3x=12/3 divide both sides by 3
x=4
How can you compare data sets?
When you compare two or more data sets, focus on four features:
Center. Graphically, the center of a distribution is the point where about half of the observations are on either side.
Spread. The spread of a distribution refers to the variability of the data. ...
Shape. ...
Unusual features.
Answer:
Common graphical displays (e.g., dotplots, boxplots, stemplots, bar charts) can be effective tools for comparing data from two or more data sets.
Step-by-step explanation:
MARK ME AS A BRAINLIST PLZ
Two friends decided to have a sumo match in their backyard. The friend in blue has a mass of 95 kg while the friend in red has a mass of 105 kg. Blue sumo runs east toward red sumo, quickly traveling 10 feet in 5.5 seconds. Blue sumo accelerates towards red sumo at 0.35 ft/s2. Red sumo accelerates in the exact opposite direction to blue sumo at 0.55 ft/s2. They both meet with an explosive collision at the center of the mat.
Answer all 6 parts. Use correct units for each answer.
1. What is Blue sumo's speed?
2. What is Blue sumo's velocity?
3. How much force does blue sumo create?
4. How much force does red sumo create?
5. What is the net force?
6. Which sumo wrestler do you think will be standing at the end of the match? Why?
Answer: 1.96
2
Step-by-step explanation:
Ms. Thomspon needs 15/2 yards of red fabric and 7 1/2 yards of silver fabric. which comparison is true.
Step-by-step explanation:
To compare the two amounts of fabric, we need to express them with a common denominator:
15/2 = 30/4
7 1/2 = 15/2
Now we can compare the two amounts:
30/4 > 15/2
This is true because 30/4 is equal to 7.5 yards, which is greater than 7.5 yards (or 15/2 yards) of silver fabric.
Therefore, Ms. Thompson needs more red fabric than silver fabric.
9(x – 45) = 36
PLEASE HELP QUICKK
Answer:
49
Step-by-step explanation:
multiply the nine into the equation so
9x-405=36
add 405 to both sides
9x=441
divide by nine on both sides
x=49
Answer
Step-by-step explanation:
9(x-45)=36
Open bracket
9x-405=36
9x=36+405
9x=441
x=441/9
x=49
Oliva works 4 hours each week more than lily
Answer:
12 hours
Step-by-step explanation:
First it’s every 2 weeks so divide by 2 to find 1 week and get 16 hours a week then subtract 4 hours cause olivia works 4 more per week and u get 12 hours so Lily works 12 hours a week ;)
sorry if wrong have a good day/night
may i please have a branllest
Give the numerical value of the parameter p in the following binomial distribution scenario.
The probability of winning an arcade game is 0.632 and the probability of losing is 0.368. If you play the arcade game 10 times, we want to know the probability of winning no more than 8 times.
Consider winning as a success in the binomial distribution. Do not include p= in your answer.
Answer:0.9306
Step-by-step explanation:
Given
Probability of winning \(p=0.632\)
Probability of losing \(q=0.368\)
Such that \(p+q=1\)
Applying binomioal distribution for n=10 trials
Probability of winning no more than 8 time=P
\(P(r\leq 8)+P(r>8)=1\)
\(P(r\leq 8)=1-P(r>8)\)
\(P(r\leq 8)=1-^{10}C_9(p)^9(q)-^{10}C_{10}(p)^{10}(q)^0\)
\(P(r\leq 8)=1-^{10}C_9(0.632)^9(0.368)-^{10}C_{10}(0.632)^{10}(0.368)^0\)
\(P=P(r\leq 8)=0.9306\)
using long division what is the quotient of this expression?
Answer:
A
Step-by-step explanation:
Answer:
Answer is A
Step-by-step explanation:
If _ does not repeat, then it is a function
Answer:
A function is a relation in which the members of the domain (x-values) DO NOT repeat. So, for every x-value there is only one y-value that corresponds to it.
Step-by-step explanation:
If domain does not repeat , then it is a function.
What is function?" Function is defined as when for each input (domain) there exist one and only one output(range)."
According to the question,
Suppose y = ax +b is a given function
x is independent variable
y is dependent variable
For each value of x there exist one and only one value of y , then it is considered as function.
All input values represents domain.
Hence, if domain does not repeat , then it is a function.
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PLEASE HELP!!
The domain of a function f(x) is x <_ 0, and the range is y <_-1. What are the domain and range of its inverse function, f-1(x)?
Answer:
Option D.
Step-by-step explanation:
Domain and range of inverse function:
The domain of the inverse function(x values) is the range(y values) of the original function.
The range of the interse function(y values) is the domain of the original function(x values).
Original function:
Domain: \(x \geq 0\)
Range: \(y \leq -1\)
Inverse function:
x values in the domain of the inverse function are the y values in the range of the original function. So
Domain: \(x \leq 1\)
Same for range(exchange of y and x).
Range: \(y \geq 0\)
The answer is given by option D.
The volume of a triangular prism is 30 cm. Each triangular face has an area of 4 cm. How long is the prism?
Answer:
12
brainliest plss
HELP ASAP PLEASE! What is the arc length of an arc with radius 18 inches and central angle 22°? Leave the answer in terms of n. Show your work.
Answer:
arc length = 2.2π inches
Step-by-step explanation:
arc length is calculated as
length = circumference of circle × fraction of circle
= 2πr × \(\frac{22}{360}\) ( r is the radius )
= 2π × 18 × \(\frac{22}{360}\) ( cancel 18 and 360 by 18 )
= 2π × \(\frac{22}{20}\)
= \(\frac{44}{20}\) π
= 2.2π inches
Completely simplify the expression
6x+1x+9x
Answer:
16x
Step-by-step explanation:
Multiply by one
6x+x+9x
then combine like terms
Can you please help me with this i will give you a branlist
Answer:
The answer is C
Step-by-step explanation: because it is reflecting and is backwards.
Answer
try the third G luck and hope this helps!!
Step-by-step explanation:
Hi! The question is in the is in the picture :) (worth 50 points)
Answer:
53.2
Step-by-step explanation:
Answer:
I did the math and it is now 53.2
Step-by-step explanation:
An experiment was used to test a new migraine medicine. Each participant took either the new medicine or a placebo
then waited for one hour to see if the headache went away or remained. The results are compiled in the contingency
table below. Use the table to answer the questions.
Went Away| Medicine| Placebo
Remained|. 120. |. 68
18. | 44
Your answers should be exact numerical values.
There were
participants whose headache remained.
The probability of randomly selecting an individual whose headache remained is
There were
participants whose headache remained and took a placebo.
The probability of randomly selecting an individual whose headache remained and took a placebo is
1) Number of participants whose headache remained is: 62
2) The probability of randomly selecting an individual whose headache remained is: 0.4133
3) The probability of randomly selecting an individual whose headache remained and took a placebo is: 0.2933
How to find the probability of random selection?From the table, we have the parameters as:
Number of participants that took medicine and headache went away = 120
Number of participants that took placebo and headache went away = 68
Number of participants that took and headache remained = 18
Number of participants that took placebo and headache remained = 44
1) Number of participants whose headache remained = 18 + 44 = 62
2) The probability of randomly selecting an individual whose headache remained is:
62/(62 + 120 + 68)
= 62/150
= 0.4133
3) The probability of randomly selecting an individual whose headache remained and took a placebo is:
44/150 = 0.2933
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1. Can the following quadratic equation be solved by factoring?
x² - x-3=0
yes
no
Answer: No. This equation can't be solved by factoring
If the quadrilateral below is a square, solve for x. PLS HELP ASAP!!!
Answer:
360 degrees in a square.
360/4 = 90
90/2 = 45
45 + 21 = 66
66/6 = 11
X= 11
The value of x from the square is x = 11
What is the area of a square?A square is a four sided quadrilateral with all of the side having equal lengths. The total internal angle of a square is 360° with each side perpendicular to each other.
A square is a 4 sided polygon where all the sides are of equal length.
The area of the square is the square of any one of its side
Let a be the side of the square
Area of the square = a²
Given data ,
Let the square be represented as PQRS
Now , for a square , the quadrilateral have all four sides as 90°
The diagonal of a square cuts the angle by 2
So , the measure of ∠SQR = 45° = measure of SQP
The measure of SQP = ( 6x - 21 )°
Substituting the values in the equation , we get
( 6x - 21 )° = 45°
On simplifying the equation , we get
6x - 21 = 45
Adding 21 on both sides of the equation , we get
6x = 66
Divide by 6 on both sides of the equation , we get
x = 11
Hence , the value of x = 11
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An office manager orders one calculator or one calendar for each of the office's 60 employees. Each calculator costs $15, and each calendar costs $10. The entire order totaled $800.
Part A: Write the system of equations that models this scenario. (5 points)
Part B: Use substitution method or elimination method to determine the number of calculators and calendars ordered. Show all necessary steps. (5 points)
The system of equations is.
\(\begin{cases}\text{x}+\text{y}=60 \\15\text{x}+10\text{y}=800 \end{cases}\)
And the solutions are y = 50 and x = 10.
How to write and solve the system of equations?Let's define the two variables:
x = number of calculators.y = number of calendars.With the given information we can write two equations, then the system will be:
\(\begin{cases}\text{x}+\text{y}=60 \\15\text{x}+10\text{y}=800 \end{cases}\)
Now let's solve it.
We can isolate x on the first to get:
\(\text{x} = 60 - \text{y}\)
Replace that in the other equation to get:
\(15\times(60 - \text{y}) + 10\text{y} = 800\)
\(-2\bold{y} = 900 - 800\)
\(-2\bold{y} = 100\)
\(\text{y} = \dfrac{100}{-2} = \bold{50}\)
Then \(\bold{x=10}\).
Therefore, the solutions are y = 50 and x = 10.
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Solve for x to make A||B
Answer: x = 50
Step-by-step explanation:
In the given image, the alternate interior angles are equal. Therefore, 80 + x = 180 - 50 (since straight angles measure 180 degrees). Simplifying this equation, we get 130 + x = 180, which gives us x = 50 degrees. Thus, A||B when x = 50 degrees.
STOP BEING SO POOOR POOR PEOPLE
Answer:
Its not a choice its a life style bubs #peasantpower
Solve the compound inequality for x and identify the graph of its solution.
x+52 1 and x-75-3
Help ASAP please
Step-by-step explanation:
Given, 3x−2<2x+1
⇒3x−2x<1+2
⇒x<3orx∈(−∞,3)
The lines y=3x−2 and y=2x+1 both will intersect at x=3
Clearly, the dark line shows the solution of 3x−2<2x+1.
The solution for x for the given inequalities is -4 ≤ x ≤ 4.
What is linear inequality?Linear inequality refers to the relation between a linear algebraic expression to some known value that contains inequality sign.
Unlike a linear equation it can have a range of values inside an interval.
The given system of inequality is as below,
x + 5 ≥ 1 and x - 7 ≤ -3.
These inequalities are solved one by one as follows,
x + 5 ≥ 1
⇒ x ≥ 1 - 5
⇒ x ≥ -4
And,
x - 7 ≤ -3
⇒ x ≤ -3 + 7
⇒ x ≤ 4
Thus, the value of x is in the range given as -4 ≤ x ≤ 4.
It implies on the number line value of x lies between -4 and 4 which is shown in option (D) only.
Hence, the solution for the given compound inequality is -4 ≤ x ≤ 4.
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does 61 have a twin? if so what is it?
Twin Prime Numbers are the set of two numbers that have exactly one composite number between them. They can also be defined as the pair of numbers with a difference of 2.
We can check if a prime number by adding and subtracting 2 from the number. 5 is the only prime number that has two twin primes: {3, 5} and {5, 7}.
To check 61, we add and subtract 2 from it.
Addition:
\(61+2=63\)Subtraction:
\(61-2=59\)63 is not a prime number, as it can be divided by 3. 59, however, is a prime number.
Therefore, THE TWIN PRIME OF 61 is 59.
Which expression is equivalent to -2 1/4 divide -2/3?
Answer:
-9/4 divide (-2/3)
Step-by-step explanation:
A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 8 cm more than the shorter leg and the hypotenuse 16 cm more than the shorter leg. what’s the perimeter of the triangle ?
The perimeter of the triangle is 3x + 24 cm.
What is the perimeter of the triangle?A right triangle is a three-sided triangle that is made up of a length, base and the hypotenuse. The hypotenuse is the longest side of the right triangle The sum of the square of the two other sides of the triangle is equal to the square of the hypotenuse. The sum of angles in a right triangle is 180 degrees.
The perimeter of a right triangle is the sum of the length of the three sides of the triangle.
Perimeter = hypotenuse + base + height
Base = x Height = 8 + x Hypotenuse = 16 + xPerimeter = x + 8 + x + 16 + x
3x + 24 cm
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A salesperson is paid an 8.25% commission on sales when the invoice is
pald. This month's paid invoices totaled $49,900. What is the salesperson's
commission for this month?
Answer:
The salesperson's commission for this month is $3,803
Step-by-step explanation:
Percentages
Let's call x to the sales volume, not including commission.
The salesperson is paid an 8.25% commission on sales, thus the total invoice is x + 8.25%x = x + 0.0825x = 1.0825x
We are given this total invoice, thus:
1.0825x = $49,900
Dividing by 1.0825:
x = $46,097
The salesperson's commission is
0.0825*$46,097=$3,803
The salesperson's commission for this month is $3,803
How many miles did Candice bike on her route ?
Answer:
what are your options
Step-by-step explanation:
3 to the power of 2 x 5 + 4 = ?!?} PLEASE HELP :(
Answer:
49
Step-by-step explanation:
3x3x5+4
Answer:
The answer is 49
Step-by-step explanation:
1. First you have to evaluate 3 to the power of 2 which would change it to 9
2. Then you would multiply 9 and 5 and you would get 45
3. Then you take 45 and add +4 to 45 making it 49