in 2-3 paragraphs, summarize your findings. support your statements with references that verify the uncertainty inherent in measurements.

Answers

Answer 1

The greater the magnitude of the measurement, the greater the uncertainty in the measurement.

The accuracy of these measurements is often of great importance, but it is important to keep in mind that there is always some degree of uncertainty inherent in any measurement.

This uncertainty can arise from a number of sources, including the limitations of the measuring tools, the skill and experience of the person making the measurement, and the conditions under which the measurement is taken.

One way to describe the relationship between measurement uncertainty and the magnitude of the measurement is through the use of exponential functions.

An exponential function is a mathematical relationship between two variables, in which one variable changes at a rate that is proportional to its current value.

In the case of measurement uncertainty, the exponential function describes the relationship between the uncertainty in a measurement and the magnitude of the measurement.

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Related Questions

Use calculus to find the area A of the triangle with the given vertices. (0, 6), (2, −3), (3, 4)

Answers

The area of the triangle with the given vertices is 11.5 square units.

Define the area of triangle by vertices?

The area of a triangle can be calculated using the coordinates of its vertices using the following formula.

To find the area of a triangle with vertices (x₁, y₁), (x₂, y₂), and (x₃, y₃), we can use the following formula:

A = (x₁(y₂ − y₃) + x₂(y₃ − y₁) + x₃(y₁ − y₂))/2

Using this formula with the given vertices (0, 6), (2, −3), and (3, 4), we get:

A = (0(-3 − 4) + 2(4 − 6) + 3(6 − (-3)))/2

A = (0 - 4 + 27)/2

A = 23/2

A = 11.5

Therefore, the area of the triangle with the given vertices is 11.5 square units.

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What is the rate of decrease
$16, 000(.85) ^t

Answers

Answer:

%17

Step-by-step explanation:

how many real solutions does the equation x2 − 9 = 0 have?

Answers

Answer:

Zero

Step-by-step explanation:

Because when you replace x with a number and solve it it doesn't have the same answer as x2 − 9 = 0.

I hope this helped. I am sorry if you get this wrong.

The correct answer is 0

Find the slope of a line parallel to the line that passes through (-4, -1) and (-1, 3)

Answers

Answer:

\( \boxed{\rm \: Slope(m)= \cfrac{4}{ 3} }\)

OR

\( \boxed{\rm \: Slope(m) \approx \: 1.30} \rm \: (nearest \: tenth)\)

Step-by-step explanation:

Given two coordinates:

(-4, -1) and (-1, 3)

To Find:

The slope of given two coordinates

Solution:

In this case,we'll need to use the slope's formula,to get the slope.

Here's the formula:

\( \rm \: Slope(m)= \: \cfrac{ y_2 -y_1 }{x_2 - x_1} \)

Slope is usually denoted as m.

According to the question:

\( \rm (y_2 , y _1) = (3,-1)\)\(\rm (x_2 , x_1) = (-1,-4)\)

Substitute them accordingly:

\( \rm \: Slope(m)= \cfrac{3 - ( - 1)}{ - 1 - ( - 4)} \)

Simplify then, using a rule called PEMDAS.

\( \rm \: Slope(m)= \cfrac{3 + 1}{ - 1 +4 } \)

\( \rm \: Slope(m)= \cfrac{4}{ 3} \)

\( \rm \: Slope(m) \approx \: 1.30\)

Hence, we can conclude that:

The slope of a line parallel to the line that passes through (-4, -1) and (-1, 3) is 4/3 in exact form and 1.30 in approximate decimal form.
Find the slope of a line parallel to the line that passes through (-4, -1) and (-1, 3)

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to find the slope of a line parallel to the line that passes through

\(\star~\mathrm{(-4,-1)}\star\)

\(\star~\mathrm{(-1,3)}\)

\(\triangle~\fbox{\bf{KEY:}}\)

The slope formula will help us out! :)

Here's the formula:

\(\star\boxed{\mathrm{\cfrac{y2-y1}{x2-x1}}}\)

y2 and y1 are y-coordinates

x2 and x1 are x-coordinates

Substitute the given values:

\(\star\mathrm{\cfrac{3-(-1)}{-1-(-4)}}\)

Simplify!

\(\star\mathrm{\cfrac{3+1}{-1+4}}\)

Simplify more!

\(\star\mathrm{\cfrac{4}{3}}\)

Now, what is the slope of the line parallel to this one?

Well, parallel lines have the same slope.

\(\star \ \mathrm{The \ slope \ of \ the \ line \ parallel \ to \ this \ one \ is \ \cfrac{4}{3}}.\)

Hope it helps you out! :D

Ask in comments if any queries arise.

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~Just a smiley person helping fellow students :)

use the sketch below to decide if congruence can be proved, and if so, which method would prove the congruence.

Answers

Yes, the proof of congruence of two triangles ∆ABC ≅ ∆GHF is possible.

The convergence method which proves this congruence is SSS(side-side-side) congruence.

We have given the sketch of two triangles as seen above. We have to prove ∆ABC ≅ ∆GHF

Now , AB = √(-7+7)² + 5² = 5 in triangle ABC and FG = 5 in triangle FGH,

so, AB ≅ FG

Because AC = 3 in triangle ABC and FH = 3 in triangle FGH,

so, AC ≅ FH

To find the lengths of BC and GH , we can use distance formula.

Length of BC :

BC = √[(x₂ - x₁)² + (y₂ - y₁)²]

(x₁, y₁) = B(-7, 0) and (x₂, y₂) = C(-4, 5).

BC = √[(-4 + 7)² + (5 - 0)²]

= √[32 + 52]

= √[9 + 25]

= √34

Length of GH :

GH = √[(x₂ - x₁)² + (y₂ - y₁)²]

(x₁, y₁) = G(1, 2) and (x₂, y₂) = H(6, 5).

GH = √[(6 - 1)² + (5 - 2)²]

= √[52 + 32]

= √[25 + 9]

= √34

Conclusion :because BC = √34 and GH = √34,

=>BC ≅ GH

All the three sides of one triangle is congruent to the corresponding sides of other triangle.

By SSS congruence postulate,

ΔABC ≅ ΔFGH

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use the sketch below to decide if congruence can be proved, and if so, which method would prove the congruence.

When an independent variable in a multiple regression model includes a value of X to a higher power, such as X squared, and this model produces a higher value of R-squared than a linear model, this suggests that the residual plot for the linear equation did not produce a random pattern around the zero line of the residual plot.
True or False

Answers

The higher R-squared value of the multiple regression model with the higher order independent variable implies that the linear model is not the best fit and that a more complex model is needed to better explain the data

1. Multiple regression models involve fitting a model that includes one or more independent variables to predict a dependent variable.

2.A value of X to a higher power, such as X squared, for an independent variable in a multiple regression model indicates that the relationship between the independent and dependent variables is not linear.

3. If this model produces a higher value of R-squared than a linear model, it means that it is a better fit for the data.

4. However, it does not necessarily imply that the linear model's residual plot is not randomly distributed around the zero line.

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What are the coordinates of the image of the point (-4,-5) after reflecting over the y-axis

Answers

The y-coordinate of the point (-4,-5) changes to its opposite after reflecting over the y-axis. The opposite of -5 is 5.

So, the coordinates of the image of the point (-4,-5) after reflecting over the y-axis are:

x-coordinate: -4 (remains the same)
y-coordinate: 5 (becomes the opposite of the original y-coordinate, -5)

Therefore, the coordinates of the image are (-4, 5).

A store is having a sale on jelly beans and almonds. For 3 pounds of jelly beans and 5 pounds of almonds, the total cost is $27. For 9 pounds of jelly beans and
7 pounds of almonds, the total cost is $51. Find the cost for each pound of jelly beans and each pound of almonds.
Cost for each pound of jelly beans:
Cost for each pound of almonds:

Answers

Answer:

Cost for each pound of jelly beans:  $2.75

Cost for each pound of almonds:  $3.75

Step-by-step explanation:

Let J be the cost of one pound of jelly beans.

Let A be the cost of one pound of almonds.

Using the given information, we can create a system of equations.

Given 3 pounds of jelly beans and 5 pounds of almonds cost $27:

\(\implies 3J + 5A = 27\)

Given 9 pounds of jelly beans and 7 pounds of almonds cost $51:

\(\implies 9J + 7A = 51\)

Therefore, the system of equations is:

\(\begin{cases}3J+5A=27\\9J+7A=51\end{cases}\)

To solve the system of equations, multiply the first equation by 3 to create a third equation:

\(3J \cdot 3+5A \cdot 3=27 \cdot 3\)

\(9J+15A=81\)

Subtract the second equation from the third equation to eliminate the J term.

\(\begin{array}{crcrcl}&9J & + & 15A & = & 81\\\vphantom{\dfrac12}- & (9J & + & 7A & = & 51)\\\cline{2-6}\vphantom{\dfrac12} &&&8A&=&30\end{array}\)

Solve the equation for A by dividing both sides by 8:

\(\dfrac{8A}{8}=\dfrac{30}{8}\)

\(A=3.75\)

Therefore, the cost of one pound of almonds is $3.75.

Now that we know the cost of one pound of almonds, we can substitute this value into one of the original equations to solve for J.

Using the first equation:

\(3J+5(3.75)=27\)

\(3J+18.75=27\)

\(3J+18.75-18/75=27-18.75\)

\(3J=8.25\)

\(\dfrac{3J}{3}=\dfrac{8.25}{3}\)

\(J=2.75\)

Therefore, the cost of one pound of jelly beans is $2.75.

Find the midpoint of the line segment with the given endpoints (-3,1 -2,8) (-4.92,-3.3)

Answers

(2,-2), (3,-3)
(1,1) , (3,3)
(2,4), (-3,-3)

What is (x³-8x² + 6x +41) ÷ (x-4)

Answers

Step 1: Write the dividend and divisor:

\(\sf\:\frac{{x^3 - 8x^2 + 6x + 41}}{{x - 4}} \\ \)

Step 2: Divide the first term of the dividend by the first term of the divisor:

\(\sf\:\frac{{x^3}}{{x}} = x^2 \\ \)

Step 3: Multiply the divisor (x - 4) by the result (x^2):

\(\sf\:(x - 4) \cdot (x^2) = x^3 - 4x^2 \\ \)

Step 4: Subtract the result from the original dividend:

\(\sf\:(x^3 - 8x^2 + 6x + 41) - (x^3 - 4x^2) = -4x^2 + 6x + 41 \\ \)

Step 5: Bring down the next term from the dividend:

\(\sf\:\frac{{-4x^2 + 6x + 41}}{{x - 4}} \\ \)

Step 6: Repeat steps 2-5 with the new dividend:

\(\sf\:\frac{{-4x^2}}{{x}} = -4x \\ \)

\(\sf\:(x - 4) \cdot (-4x) = -4x^2 + 16x \\ \)

\(\sf\:(-4x^2 + 6x + 41) - (-4x^2 + 16x) = -10x + 41 \\ \)

Step 7: Bring down the next term from the dividend:

\(\sf\:\frac{{-10x + 41}}{{x - 4}} \\ \)

Step 8: Repeat steps 2-5 with the new dividend:

\(\sf\:\frac{{-10x}}{{x}} = -10 \\ \)

\(\sf\:(x - 4) \cdot (-10) = -10x + 40 \\ \)

\(\sf\:(-10x + 41) - (-10x + 40) = 1 \\ \)

Step 9: There are no more terms to bring down, so the division is complete.

Step 10: Write the final result:

The quotient is \(\sf\:x^2 - 4x - 10\\\) and the remainder is 1.

Therefore, the division of \(\sf\:(x^3 - 8x^2 + 6x + 41) by (x - 4) \\\) is:

\(\sf\:(x^3 - 8x^2 + 6x + 41) ÷ (x - 4) \\ \) \(\sf\:= x^2 - 4x - 10 + \frac{{1}}{{x - 4}} \\ \)

what’s the quotient of -15b^5+18b^3/3b

Answers

This is the quotient of (-15b^5 + 18b^3) divided by 3b. The expression simplifies to -5b^4 + 6b^2.

To find the quotient of the expression (-15b^5 + 18b^3) divided by 3b, we can perform the division by simplifying each term separately.

First, let's divide -15b^5 by 3b:

(-15b^5) / (3b) = -15/3 * b^5/b = -5 * b^(5-1) = -5b^4

Next, let's divide 18b^3 by 3b:

(18b^3) / (3b) = 18/3 * b^3/b = 6 * b^(3-1) = 6b^2

Now, we have simplified each term individually. The resulting expression is:

-5b^4 + 6b^2

This is the quotient of (-15b^5 + 18b^3) divided by 3b. The expression simplifies to -5b^4 + 6b^2.

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Find the sum or difference.
1. -80+77 =
2. 77 + 160 =
3. -64+ (-33) =
4. 104-(-92) =
5. -105-(-122) =
6. 185-(-154) =
7. -53-(-59) =
8. -6+ (-35) =
9. 15-(-26)-(-39) =
10. -93 +191+ (-179)
Find the product or quotient.
11. 60+ 12 =
12. -194+ (-2)=
13. 88 (-2) =
14. -12 10 =
15. -10 (-11) =
16. 90+ (-6)=
17. 3 (-59) =
18. -7 (-2) =
19. 100 (0) =
20.100/0=​

Answers

After answering the presented question, we may conclude that  the solution of the expressions are as follows.

what is expression ?

In mathematics, you can multiply, divide, add, or subtract. An expression is constructed as follows: Number, expression, and mathematical operator A mathematical expression (such as addition, subtraction, multiplication, or division) is made up of numbers, variables, and functions. It is possible to contrast expressions and phrases. An expression or algebraic expression is any mathematical statement that has variables, integers, and an arithmetic operation between them. For example, the phrase 4m + 5 has the terms 4m and 5, as well as the provided expression's variable m, all separated by the arithmetic sign +.

the solution of the expressions are as follows -

-3237-97196173396-4152-8172-196-176-12011084-177140undefined (division by zero is undefined)

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the top of an electric pole is s supported by a wire of 26 ft long on the ground level. how far is tightened spot from the foot of the pole if its height is 24 ft?​

Answers

Answer:

The tightened spot is 10 feet away from the foot of the pole.

Step-by-step explanation:

1. Draw the diagram. Notice that the shape of the electric pole and its supporting wire creates a right triangle.

2. We know 2 side lengths already (26ft, 24ft), and we need to find 1 more side length. Therefore, to find the 3rd side length of a right-triangle, utilize Pythagoras' Theorem.

What is the Pythagoras' Theorem?

\((C)^2 = (A)^2 + (B)^2\)An equation to find a 3rd side lengthC = hypotenuseA = one legB = another leg

3. Substitute the values of the side lengths into the equation, and solve for the unknown side length.

Let B= the distance from the tightened spot to the foot of the pole.

\((C)^2 = (A)^2 + (B)^2\)

\(26^2 = 24^2 + B^2\)

\(676 = 576 + B^2\)

\(100 = B^2\)

\(\sqrt{100} = \sqrt{(B)^2}\)

\(10 = B\)

∴ The tightened spot is 10 feet away from the foot of the pole.

Diagram:

the top of an electric pole is s supported by a wire of 26 ft long on the ground level. how far is tightened

What is the difference of
(3/4x - 2/3) - (-5/6+2x)

What is the difference of(3/4x - 2/3) - (-5/6+2x)

Answers

This equation is also equal to 3/4x - 2/3 + 5/6 + 2x since subtracting a negative is the same as adding a positive in the long run. First, simplify the variables to get 2 3/4x - 2/3 + 5/6. -2/3 is also equal to -4/6, so -4/6 + 5/6 is 1/6. The simplified version of this expression is 2 3/4x + 1/6.

An office uses paper drinking cups in the shape of a cone, with dimensions as shown. To the nearest tenth of a cubic inch, what is the volume of each drinking cup? Drinking Cup Cone Picture

Answers

Yes it we’ll be answer A

Help me please thank you

Help me please thank you

Answers

I think A? Don’t take my word for it though maybe wait for a pro to help u I’m not the best but I think it’s A. TLDR I think it’s A but I might be wrong.

AP TEST QUESTION 1
PLEASE HELP
ILL GIVE BRAINLIST ANSWER
IMAGE ABOVE

AP TEST QUESTION 1 PLEASE HELPILL GIVE BRAINLIST ANSWER IMAGE ABOVE

Answers

On solving the provided question we can say that - from the graphs n f (x) and g( x) are 1 and 5 .

What is graphs?

Graphs are visual representations or charts used in mathematics to methodically express data or values. A relationship between two or more objects is frequently represented by a point on a graph. A non-linear data structure called a graph is made up of nodes, or vertices, and edges. Connect the nodes, also known as vertices. This graph comprises a set of vertices V= 1, 2, 3, 5, and a set of edges E= 1, 2, 1, 3, 2, 4, and (2.5), (3.5), (4.5). Statistics graphs (bar charts, pie charts, line charts, etc.) Exponential diagrams. triangle graph, a logarithmic graph

by graphs of the function f (x) and g( x).

\(lim f ( x) + lim g ( x )\\= -1 + 2 = 1\\ f ( -1 ) + lim g ( x)\\= 3 + 2\\= 5\)

from the graphs n f (x) and g( x) are 1 and 5 .

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For each chart below, identify the output rule and classify the function as exponential, linear or neither.

For each chart below, identify the output rule and classify the function as exponential, linear or neither.
For each chart below, identify the output rule and classify the function as exponential, linear or neither.
For each chart below, identify the output rule and classify the function as exponential, linear or neither.

Answers

The classification and the output rule for each function in this problem is given as follows:

1. Output rule: y = 5x + 11. Classification: Linear.

2. Output rule: y = 2^x. Classification: Exponential.

3. Output rule: y = 3 if |x| is even, y = 1 if |x| is odd. Classification: Neither.

What defines a linear function?

A linear function is defined when the increase of 1 in x result in the addition of a constant to y, hence the rule is:

y = mx + b.

In which:

m is the addition to y when x increases by one.b is the value of y when x = 0.

Hence, for the first table, as 5 is added to x when x increases by one, the rule is:

y = f(x) = 5x + 16.

What defines an exponential function?

An exponential function is defined when the increase of 1 in x result in the multiplication of a constant to y, hence the rule is:

y = a(b)^x.

In which:

b is the addition to y when x increases by one.a is the value of y when x = 0.

Hence, for the second table, the rule is:

y = 2^x.

For the third table, none of the definitions for linear and for exponential functions are true, hence the function is neither, as it is a piece-wise function that assumes one value for odd numbers and another for even numbers.

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The perimeter of a playing card is 32 centimeters. It is 10 centimeters tall. How wide is it?

Answers

Answer:

Step-by-step explanation:

Its is

6CM wide. as to find the area we have to times the length x height :)

Answer:

wide = 6 cm

Step-by-step explanation:

\(t=tall=10\)

\(w=wide=?\)

\(P=perimeter=32\)

The equation:

\(P=2t+2w\)

\(32=2(10)+2w\\32=20+2w\)

\(32-20=2w\\12=2w\)

\(\frac{12}{2} =w\)

\(6=w\)

Hope this helps.

Create a check register for the transactions listed.
a. Your balance on 1/5 is $822.67.
b. You write check 1076 on 1/6 for $600.00 to Excel Health Club.
c. You deposit a paycheck for $227.45 on 1/11.
d. You deposit a $50 rebate check on 1/15.
e On 1/16, you begin writing a donation check to Clothes for Kids but make an error and have
to void the check. You write the very next check for $100 to this organization.
f. On 1/20, you withdraw $200 from the ATM at the mall. The company owning the ATM
charges you $3.50 and your bank charges you $2.50 for the ATM transaction.
g. On 1/21, you made a debit card purchase at Stacy's Store for $134.87.
Numer
Debit
Date
1/5
Description of Transaction
Balance
Credit Balance
$ 822.67

Answers

Answer:

Step-by-step explanation:

Create a check register for the transactions listed.a. Your balance on 1/5 is $822.67.b. You write check

A check register for the transactions listed is attached below in the form of a picture.

What is a Check register for the transaction?

A take a look at sign up is a record on that is said the charge dates, take a look at numbers, charge amounts, and payee names for all take a look at bills. The record is used to decide the precise bills blanketed in a take-a-look-at-a-run; as such, its miles are taken into consideration and are a vital part of the bills payable process.

Given, Few transactions of a check register as per the given question:

a. Your balance on 1/5 is $822.67.

b. You write check 1076 on 1/6 for $600.00 to Excel Health Club.

c. You deposit a paycheck for $227.45 on 1/11.

d. You deposit a $50 rebate check on 1/15.

and so on,

Date  Transaction Description                Balance($)

01 May 2023  Beginning Balance    

02 May 2023  Check to Excel Health Club   -₹ 600.00

03 May 2023  Paycheck                            ₹ 227.45

04 May 2023  Rebate Check                           ₹ 50.00

05 May 2023  Check to clothes for kids    -₹ 100.00

06 May 2023  ATM                                           -₹ 202.50

07 May 2023  Purchase at Stacy's store         -₹ 134.87

08 May 2023  Deposit into bank            ₹ 1,300.00

09 May 2023  Check to iBiz                   -₹ 744.24

10 May 2023  Paycheck                             ₹ 227.45

11 May 2023  ATM                                           -₹ 50.00

12 May 2023  Check to iTel wireless             -₹ 75.00

13 May 2023  Check to Ticket king                -₹ 120.00

Therefore, the only balance sheet is given above and A check register for the transactions listed is attached below in the form of a picture.

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Complete question:

Create a check register for the transactions listed.a. Your balance on 1/5 is $822.67.b. You write check
Create a check register for the transactions listed.a. Your balance on 1/5 is $822.67.b. You write check

Multiply the number by 4
Add 12 to the product
Divide the sum by 2
Subtract 6 from the quotient

Answers

By comparing the result obtained in Part B (6N) with the result obtained in Part A, we can see that the conjecture holds true. The result of the process is indeed related to the original number (N) by multiplying it by 6.

Part A:

Based on the given process, the conjecture that relates the result of the process to the original number (represented as N) is as follows:

Start with the original number N.

Multiply N by 4.

Add 12 to the product.

Divide the sum by 2.

Subtract 6 from the quotient.

The result of this process is the final number obtained.

Part B:

To prove the conjecture using deductive reasoning, we will follow the steps given in Part A:

Start with the original number N.

Multiply N by 12.

Add 4 to the product.

Divide the sum by 2.

Subtract 2 from the quotient.

We will simplify the steps using algebraic notation:

Step 1: N

Step 2: 12N

Step 3: 12N + 4

Step 4: (12N + 4) / 2

Step 5: [(12N + 4) / 2] - 2

Now, let's simplify Step 5:

Step 5: (12N + 4) / 2 - 2

      = (12N + 4 - 2*2) / 2

      = (12N + 4 - 4) / 2

      = 12N / 2

      = 6N

Therefore, the result of this process is 6N.

We may verify that the supposition is correct by comparing the result from Part B (6N) with the result from Part A. By multiplying the outcome by 6, the process does in fact relate to the original number (N).

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The complete question is:

Multiply the number by 4. Add 12 to the product. Divide this sum by 2. Subtract 6 from the quotient. 1st number is 3 and the results 2nd number is 6 and the results 3rd number is 8 and the results 4th number is 12 and the results part A. Write a conjecture that relates the result of the process to the original number selected. Represent the original number as N. What is the result part b Represent the original number as N, use deductive reasoning to prove the conjecture in part (a) multiply the number by 12 and the results add 4 to the product and the results divide the sum by 2 subtract 2 from the quotient

What is its equation in slope-intercept form ?

What is its equation in slope-intercept form ?

Answers

Answer:

Candice

Step-by-step explanation:

A professor wondered if there was a difference in the proportion of students who dropped math classes between females and males. The professor randomly selected 20 math classes around campus and recorded the gender of the individual and whether or not a student enrolled in the class at the beginning of the term dropped the class at some point during the term. Assuming all conditions are satisfied, which of the following tests should the researcher use? Choose the correct answer below.
a) Chi-square goodness of fit test
b) two-sample z-test for proportions C
c) paired t-test
d) one-sample z-test for proportions
e) two-sample t-test

Answers

Answer:

b) two-sample z-test for proportions

Step-by-step explanation:

The most appropriate test to use for the research hypothesis stated above is the two sample z-test for proportions, this is because, the experiment has two independent groups (male and female) with the result of each group not affecting the result of the other. The experiment clearly stses that, it is to estimate the difference in proportion, hence, it is a test of proportions rather than mean. Also when performing, a two sample tests of proportion, the Z distribution is used.

An odometer show that a car has traveled 40,000 miles by January 1, 2020. The car travels 16,000 miles each year. Write an equation that represents the number y of miles on the car’s odometer x years after 2020.

y = __

Answers

The equation will be  \(y=40000+16000*x\)

How do you resolve a two-variable equation?

Solve one of the equations for a particular variable. After that, insert that into the other equation and find the variable there. To find the value for the other variable, enter that value into either equation.

Two variables are used in what kind of equation?

Equations come in two varieties: identities and conditional equations. All possible values of the variables result in an identity. Only certain combinations of the variables' values make a conditional equation true. Two expressions joined by the equals symbol ("=") form an equation.

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answer these 2 qns if possible or atleast one ​

answer these 2 qns if possible or atleast one

Answers

1. The percentage of maize flour is given as 16.7 %

2. The common ratio of the GP is r = 1.5.

How to solve for the common ratio

1. We have to set up equation

60x + 90(1 - x) = 85

60x + 90 - 90x = 85

now we have to solve for the value of x

-30x = -5

x = 5 / 30

x = 0.167

Hence percentage of maize flour is given as 16.7 %

2. a + ar = 20 (1)

ar + ar^2 = 30 (2)

We can rearrange equation (1) to get an expression for a:

a = 20 / (1 + r)

Now, we can substitute a into equation (2) to get an equation only in terms of r:

\(20r / (1 + r) + 20r^2 / (1 + r) = 30\\20r + 20r^2 = 30(1 + r)\\20r + 20r^2 = 30 + 30r\\20r^2 - 10r - 30 = 0\\2r^2 - r - 3 = 0\)

Solving this quadratic equation, we get:

We have two solutions, r = 1.5 and r = -1. But since the GP is increasing, we discard the negative solution. Therefore, the common ratio of the GP is r = 1.5.

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Choose the system of inequalities that best matches the graph below.

Choose the system of inequalities that best matches the graph below.

Answers

Answer: D

Step-by-step explanation:

Hope it helps

b) In a group of 1,100 youths, each uses smart phones, either I-phone or Samsung or both or neither, 150 of them use only I-phone, 770 of them use Samsung and 900 use only one of these two smart phones. (i) Find the number of youths who use both of these smart phones. (ii) Find the number of youths who use neither of these smart phones.​

Answers

Feel free to ask if you didn't understand a part
b) In a group of 1,100 youths, each uses smart phones, either I-phone or Samsung or both or neither,

How does the falling action of the story affect the meaning? sorry it is for english

Answers

Answer:

The Function of Falling Action

The purpose of the falling action is to lead the reader into the resolution. It allows for a less abrupt ending and for loose ends to be resolved. By not immediately resolved the story, it allows for some suspense to build for the reader who is anxiously awaiting the ending of the plot.

Step-by-step explanation:

The falling action of the story is the section of the plot which is following the climax, and the story’s central conflict decreases and the story move forward to its conclusion.

What is the function of this

What is the function of this

Answers

Answer:

Step-by-step explanation:

This is a linear function (a line), meaning it can be modeled in the form y=mx+b.

Taking two points that lie on the line, say (-1, 2) and (3, -1),

m=(-1-2)/(3-(-1))=-3/4.

So we have y=(-3/4)x+b.

Substituting in the point (-1, 2), we get that 2=(-3/4)(-1)+b

2 = 3/4 + b
b = 5/4

Therefore, y=(-3/4)x + 5/4.

A composition of reflections over parallel lines is the same as a __________.

A.
translation
B.
rotation
C.
glide reflection
D.
double rotation

Answers

Answer:

a. translation

Step-by-step explanation:

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