3. Which equation illustrates the associative
property of addition?
A. (x + y) + 3 = x + (y + 3)
B. 3(x + y) = 3x + 3y
C. x + y = y + x
D. x + 0 = x

Answer:

x = 5

Step-by-step explanation:

4x + 3 = 23

Subtract 3 from both sides;

4x = 20

Divide both sides by 4;

x = 5

Answer:

x=5

Step-by-step explanation:

4x+3=23

4x=23-3

4x=20

x=20/4

x=5

Answer:

a loss of 72.47

Step-by-step explanation:

I got this answer right on my test

Answer:

-2 i think

Step-by-step explanation:

(0,4) or 4

Hope it helps.

Do comment if you have any query.

Answer:

i believe 3 would be your answer (x,y)

Step-by-step explanation:

Answer:

option 2

Step-by-step explanation:

QR = 15 ( triangle is a 8- 15- 17 Pythagorean triple )

cosP = [tex]\frac{PR}{PQ}[/tex] = [tex]\frac{8}{17}[/tex] ≠ [tex]\frac{8}{15}[/tex]

tanQ = [tex]\frac{PR}{QR}[/tex] = [tex]\frac{8}{15}[/tex] ≠ [tex]\frac{15}{8}[/tex]

sinP = [tex]\frac{QR}{PQ}[/tex] = [tex]\frac{15}{17}[/tex] ≠ [tex]\frac{8}{17}[/tex]

cosQ = [tex]\frac{QR}{PQ}[/tex] = [tex]\frac{15}{17}[/tex] ← correct statement

Answer:

its the cos q = 15/17

Step-by-step explanation:

cos q = 15 (adjacent) / 17 (hypothenuse)

Answer:

2100

Step-by-step explanation:

5% of 2000 = 2000 x 1/20 = 100.

2000+100=2100

Also, if it said how much interest will her investment PAY, then it would be $100 because of the 5% simple interest.

Answer:

she will be back at 7:30pm

Step-by-step explanation:

From the question we are given

Time that Shasta leaves for her best friend place = 5:00pm

If she is to come back after 2 and a half hour, hence we will have to add 2hr 3ominutes to the time she left to know the time she will be back as shown:

She will be back at 5:00 + 2hr 30min = 7:30pm

Hence she will be back at 7:30pm

Answer:

(4x-6)(4x-6)

Step-by-step explanation:

expand 4x×4x-6×6

Answer:

I think A I'm not sure tho

In the transformation of rectangle A, a reflection is across the X-axis. The correct option is A.

A reflection in mathematics is a mapping from a Euclidean space to itself that is an isometry with a set of fixed points known as the hyperplane, also known as the axis or plane of reflection. The mirror image of a figure in the axis or plane of reflection is the image produced by a reflection.

Given image is having a rectangle A which is having reflection across the X-axis. The meaning of the reflection is that the figure will have an image of itself across the x-axis.

Therefore, in the transformation of rectangle A, a reflection is across the X-axis. The correct option is A.

To know more about reflection follow

https://brainly.com/question/26642069

#SPJ5

Answer:

36 feet

Step-by-step explanation:

There are three feet to each foot, 3 times 12 is 36.

Answer:

No because the 2 is outside of the parentheses meaning it should be 9^2

Step-by-step explanation:

Answer:

No, I will not simplify 3² first.

Rather I would simplify (12-3) first, i.e., 9.

Then simplify 9² which gives the answer 81.

Step-by-step explanation:

Answer:

(2, 12)

Step-by-step explanation:

x + 10 = 4x + 4

   - 4           - 4

x + 6 =  4x

- x         - x

6 = 3x

divide 3 on each side

2 = x

then plug 2 in either equation

ei) y = 2 + 10

    y = 12

Answer:

у + 3x = -4 2х - Зу = -21

Step-by-step explanation:

Answer:

3 Miles

Step-by-step explanation:

D = R*T

0.5*6 = 3

so 3

Answer:

108000.

Step-by-step explanation:

9,000 x 12

Answer:

Step-by-step explanation:

2a)  p * [tex](3p^{3} )^{2}[/tex]

[tex]p^{1}[/tex] * [tex]9p^{2*3}[/tex]

[tex]p^{1}[/tex] * [tex]9p^{6}[/tex]

[tex]9p^{6+1}[/tex]

[tex]9p^{7}[/tex]

2b)  ( [tex](-3x)^{2}[/tex] * [tex]x^{3}[/tex] *[tex]y^{5}[/tex] ) /  [tex]y^{6}[/tex]

[tex]9x^{2}[/tex] *[tex]x^{3}[/tex] / [tex]y^{1}[/tex]

[tex]9x^{2+3}[/tex] / y

[tex]9x^{5}[/tex] /y

Answer:

I’m gonna explain this best I can

Step-by-step explanation:

okay, since I dont have graphing paper or your graph, I am going to put the points that your dots would go in, and you can put them and connect the line :)

first point: (0, -1)

second point: (7, 4)

third point: (14, 9)

then connect the line

Answer:

7.5

Step-by-step explanation:

157.5/21 = 7.5

Answer:

A 40%

Step-by-step explanation:

2/5 = 40/100 (or 40%)

So 40 blocks should be filled in :)

Hope this helps!

Answer: the answer is a

Step-by-step explanation:  because the equivalent fraction is 4/10 and the  graph is of 10 by 10 so from it shahid 10 from breath and 4 from length

PLEASE MAKE Me THE BRAINLYEST

Answer: 4 5/12 miles

Step-by-step explanation: To add or subtract two fraction, you need to find a common denominator. The easiest way to do that is to just multiply the denominators of the two fractions together. 3 x 4 = 12 so I'll use 12 as my common denominator. Now that we have that, we have to convert the numerators. We must multiply the numerators by the same number we multiplied or denominators by to get the common denominator. 3 x 4 = 12, 4 x 3 = 12, 2 x 4 = 8, 3 x 4 = 12. Now the fractions we have are 9/12 and 8/12. Since they have the same denominator now we can add them. 9/12 plus 8/12 equals 17/12 or 1 and 5/12 written as a mixed number. We also add the whole numbers. 1 plus two equals 3. 3 plus 1 and 5/12 equals 4 and 5/12.

Answer:

16.7 years

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

the line that's PR is longer than OR

Answer:

x = 4.5 AND x = -4

Step-by-step explanation:

for the first answer

add 9 to 0 and divide by 2

for the second answer

subtract 4

Answer:

x = 9/2 and x = -4

Step-by-step explanation:

you can set each expression in the parenthesis' equal to zero. this is due to it being multiplication so if one parenthesis equals 0, the answer will be 0

2x - 9 = 0 and x + 4 = 0

starting with 2x-9=0

add 9 to both sides

2x = 9

divide by 2

x = 9/2

then do x + 4 = 0

subtract 4

x = -4

so your two answers are

x = 9/2 and x = -4

Answer:

5

Step-by-step explanation:

mean = sum of all values÷number of observation

= 3+7+5+6+4 ÷ 5

= 5

Answer:

the answer is option : D

Step-by-step explanation:

multiply 9 with the given hrs to find the correct one

Answer:

Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does 0 represent in this situation you created?

Step-by-step explanation:

Answer:

i think its (x2,y2)=(19,3)

Step-by-step explanation:

sorry if its wrong

Answer:

What model?

Step-by-step explanation:

Answer:

19.9%

Step-by-step explanation:

39.8/200 = 0.199 (move decimal two times)

19.9%

or you can just see what number get 200 to 100, which is by dividing by 2. What you do to the bottom you do to the top so 39.8/200 (divide both sides by 2)  = 19.9/100

which is 19.9%.

Ace Carlos

Answer:

127.253 m^3

Step-by-step explanation:

To find the volume, we start by getting the area of the square base

Mathematically, that will be 4.9^2 m^2

To complete the volume, we multiply the area of the base by the height

= 4.9^2 * 5.3 = 127.253 m^3

Answer:

Step-by-step explanation:

42.4