Nancy is checking to determine if the expressions x + 4 + x and 6 + 2 x minus 2 are equivalent. When x = 3, she correctly finds that both expressions have a value of 10. When x = 5, she correctly evaluates the first expression to find that x + 4 + x =14.

What is the value of the second expression when x = 5, and are the two expressions equivalent?
The value of the second expression is 8, so the expressions are not equivalent.
The value of the second expression is 14, so the expressions are equivalent.
The value of the second expression is 16, so the expressions are equivalent.
The value of the second expression is 18, so the expressions are not equivalent.

Answers

Answer 1

Answer:

The value of the second expression is 14, so the expressions are equivalent.

Step-by-step explanation:

x=5

6+2(5)-2=

6+10-2=

16-2=

14

The other expression also came out to be 14, so they are equivalent.

Answer 2

Answer:

The value of the second expression is 14, so the expressions are equivalent.

Step-by-step explanation:


Related Questions

Help pls 10 points
A x=56
B x=156
C x=166
D x=66

Answers

D: x=66

Step-by-step explanation:

As we know the angle is 90 degree.Then x+24 degree is equal to 90 degree as whole part axiom. If we subtract 24 from 90 we get 66

Hope it's helpful!!

A line with a slope of -1 passes through the point (5,6). What is its equation in point-slope form?

Answers

Answer:

y - 6 = -(x - 5)

Step-by-step explanation:

Start with the general point-slope form y - k = m(x - h).

Here m = -1, h = 5 and k = 6, and so, after substitutions, we have:

y - 6 = -(x - 5)

It’s an emergency help!

Answers

Answer:

24m^2

Step-by-step explanation:

to get the length, we have to follow this equation:

2W + 2L = P

2(4) + 2L = 20

8 + 2L = 20

8 + 2(6) = 20

to get the area from this information, we have to follow this equation:

A = W • L

A = 4 • 6

A = 24m^2

lol also isn’t there a time limit on quizizz ?

What is X and Y? I will give brainliest to whoever shows work and explains how to do the problem and if its correct.

Answers

Answer:

x = 5([tex]\sqrt{3}[/tex])

y = 10

Step-by-step explanation:

1st, we need to find the angles on the triangle before we can solve for side lengths.

Line Y is intercepted by line X which forms 2 supplementary angles.

These angles add up to 180 so 180 - 150 = 30 therefor the angle is 30 degrees

Next, using the vertical angle theorem, we see that there is a right angle and using this theorem, we can determine this is a right triangle and that angle is 90 degrees

Using the triangle sum theorem, we know a triangle's sum is = to 180 degrees

90 + 30 + x = 180

120 + x = 180

x = (180 - 120)

x = 60

We now determined this is a 90-60-30 triangle

The opposite of the 30 degree angle is the 5 unit measurement

According to this theorem 5 is equal to x because the side opposite of the 30 degree angle is = to x (not the side variable, the variable for this theorem)

We now solve the rest

x = 5

2x (opposite of 90 degrees) = 10

5x = 5([tex]\sqrt{3}[/tex]) (This is in its simplest form)

So now based upon this,

x = 5([tex]\sqrt{3}[/tex])

y = 10

3. True or False, the following 4 ordered pairs are solutions to the following equation:
y = -2x + 11
(-1,13), (0,11), (1,9), (2,7)

Answers

1000 sjdhcbebebdbdbd

Silvio earns 23% for each car sale he makes while working at a used car dealership. If he sells a used car for $25,000, what is his commission?

Answers

Answer: $5, 750

Steps:
25, 000 * 0.23 = 5, 750

Help!!!!! Find the volume of the cylinder

Answers

Answer:

V= 452.16

Step-by-step explanation:

V= πr^2h

V= π6^2(4)

V= π x 36 x 4

V= π x 144

π= 3.14

V= 3.14 x 144

V= 452.16

i need help and so far i haven't got any help yet plz plz plz i need help

Answers

Answer:

20.9, 34

Step-by-step explanation:

How to find mean: add up all the numbers and  divide by how many numbers

19, 19, 20, 20, 20, 21, 22, 22, 22, 22, 23

(19+19+20+20+20+21+22+22+22+22+23)/11=230/11=20.9(rounded)

If the new mean is 22, sum of all the numbers is 22 times 12=264

264-230=34(new player age)

If
x + 2y = 1
X– 2y = 13
then y =

Answers

Answer:

y = -3

Step-by-step explanation:

x + 2y = 1 then x = 1 - 2y

x– 2y = 13

substitute for x:

1 - 2y - 2y = 13

simplify:

-4y = 12

y = -3

x = 7

5. Use long division method to calculate 102 024 ÷ 156​

Answers

Here is the answer:

Using long division 1020 ÷ 156 is equal to  654.

What are some alternative names for arithmetic operations?

Addition is also known as the sum, subtraction is also known as the difference, multiplication is also known as the product, and division is also known as the factor.

Given, 102024  is divided by 156​.

First, we'll take up to 1020 ÷ 156 then we'll have a reminder of two-digit and a quotient of 1 digit we will bring down the next digit and continue the process until it is completely divisible or we have a remainder than is less than 156.

1020 ÷ 156

= 654.

learn more about long division here :

https://brainly.com/question/28824872

#SPJ2

Evaluate:
1. (0.36) 1/2
2. (3/7) 2

Answers

1.) 0.36 ·1/2
9/25 · 1/2
9/50 or 0.18

2.) 3/7 · 2
3/7 · 2/1
3 · 2/7 ·1
6/7 or 0.857142

A cylinder has a height of 19 centimeters and a radius of 10 centimeters. What is its volume? Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

Answers

Answer: 5966cm³

Step-by-step explanation:

The volume of a cylinder is calculated using the formula:

Volume = πr²h

where, π = 3.14

radius = 10cm

Height = 19cm

Volume = πr²h

= 3.14 × 10² × 19

= 3.14 × 100 × 19

= 5966.00cm³

You are solving a system of two linear equations in two variables, and you discover that there is exactly one solution to the system.


Which of the following graphs could describe the system of equations?
A Pink
B Green
C Blue
D Purple

Answers

Answer is D-purple cuz have a interception

https://gyazo.com/46ca31c22a7fbb58e5b42ba43088eb9f

Answers

Answer:

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Step-by-step explanation:

Answer:

it goes to a screen shot

Step-by-step explanation:

-5
-4
-3

-2
1
2
3
4
5
-2
-3
-4
-5
The graph shown is not a function because points (-1, 2) and (
have the same X-value.
Aww

Answers

Answer:

The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.

Answer:the other point at x=-1 is (-1,0)

the other point at x=-1 is (-1,0)this fails the vertical line test so it is a relation not a function

The chess club can have at most 36 members. There are 3 times as many boys as girls in the chess club. Which inequality could be used to determine the possible number of girls, x, in the chess club?

Answers
A. x + 3x < 36
B. x + 3x ≤ 36
C. x + 3x > 36
D. x + 3x ≥ 36

Answers

Answer:

B. x + 3x ≤ 36

Step-by-step explanation:

bc the word AT MOST means ≤

so it would be B

How was this solved?

Answers

Answer:

drag the celucs

Step-by-step explanation:

they first added them all together and then they subtract 80 then added 4 because there are 4 numbers

PLEASE I NEED HELP!!! IT"S FOR MATH< IT"S ABOUR EVALUATING FUNCTIONS

Answers

Answer:

a) f(3) = -19

b) x = -2 (I assume you have to find x, but the question isn't very clear)

Step-by-step explanation:

a) f(3) = -4(3) - 7 = -12 - 7 = -19

b) Suppose f(x) = 1. Then 1 = -4x - 7, so -4x = 8, and thus x = -2

Write the equation of the line in Polnt-Slope form that goes through the point
(10,5) and has a slope of -3

Answers

Answer:

y-5=-3(x-10)

Step-by-step explanation:

y-y1=m(x-x1)

y-5=-3(x-10)

y-5=-3(x-10) hope this helps!

In the expression
4x + 7, the x is called the _.
A. term
B. constant
C. coefficient
D. variable

Answers

the variable
4 is the coefficient

Answer:

constant

Step-by-step explanation:

constant just trust

what is the x intercept of a line that has a slope of 2/3 and passes through the point (-2,2)?

Answers

Answer:

-3

Step-by-step explanation:

use the equation y = mx + b where m is the slope and b is the y-intercept so just plug in what you know. y = 2/3x + 2 then solve the equation for x . To do that, just put y = 0 so then it would be -2 = 2/3x then -2/ 2/3 = x and -2 divided by 2/3 would be -3

Help!! It’s important ...

Answers

Answer:

10

Step-by-step explanation:

:)

A bear can run 400 feet in 8 seconds. A horse can run 300 feet in 5 seconds. Which animal runs at the faster rate?

Answers

Answer:

Horse

Step-by-step explanation:

takes less time to go 100 feet less.

Answer:

A horse.

Step-by-step explanation:

If you divide 400 by 8 you get 50 ft per second

If you divide 300 by 5 you get 60 ft per second.

Determine the scale factor.

Answers

The scale factor is 5

Pls helppp anyoneeee plssss

Answers

Given:

Mean = 45

Standard deviation = 9

Confidence level = 95%.

To find:

The confidence interval.

Solution:

The formula for confidence interval is:

[tex]C.I.=\overline{x}\pm z\dfrac{\sigma}{\sqrt{n}}[/tex]

Where, [tex]\overline{x}[/tex] is mean, z is the z-value at given level of confidence, [tex]\sigma[/tex] is the standard deviation and n is the number of observations.

The z-value at 95% confidence level is 1.96.

Here number of observations are not given. Assume it is 1.

Putting [tex]\overline{x}=45,\sigma=9,z=1.96,n=1[/tex].

[tex]C.I.=45\pm 1.96\dfrac{9}{\sqrt{1}}[/tex]

[tex]C.I.=45\pm 1.96(9)[/tex]

[tex]C.I.=45\pm 17.64[/tex]

It can be written as

[tex]C.I.=[45-17.64,45+17.64][/tex]

[tex]C.I.=[27.36,62.64][/tex]

Approximate the value to the nearest whole number.

[tex]C.I.=[27,63][/tex]

The interval for the middle 95% of snowfall is  27 to 63.

Therefore, the correct option is A.

Shawna already has 7 flowers in her garden, and she can also grow 1 flower with every seed packet she uses. How many seed packets does Shawna need to have a total of 32 flowers in her garden?

Answers

Answer:

25

Step-by-step explanation:

Shawna needs 32 flowers and she has 7 flowers already.

Number of flowers she has to plant = 32 - 7 = 25

If 1 seed packet grows 1 flower, she needs 25 seed packets

Jesse's store buys phone cases for $8 and marks them up 85%. How much does his store sell them for? Round to the nearest cent.

Answers

Answer:

Jesse's store will sell the phone cases for $14.80

Step-by-step explanation:

Cost price of the phone cases purchased by Jesse = $8

He marks them up 85%.

Therefore, selling price of the phone cases = $8 + (85% of $8)

                                                                        = 8 + ([tex]\frac{85}{100}\times 8[/tex])

                                                                        = 8 + 6.80

                                                                        = $14.80

Jesse's store will sell the phone cases for $14.80

Help please
In 1941, an actress claimed that her beautiful skin came from Lux soap. What was her name?


Group of answer choices


A. Saira Banu


B. Sadhana Bose


C. Nirupa Roy


D. Sabita Devi


E. Leela Chitnis

Answers

Answer:

E. Leela Chitnis

Step-by-step explanation:

E: Leela Chitnis is your answer

How can you use ratios to determine if two figures are similar?

Answers

Answer:

Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal. This common ratio is called the scale factor .

Step-by-step explanation:

Is the following a Function?

Answers

The answer is yes it is a function

Answer:

yes, the following is a function

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