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3 years ago

The scores of 4th and 5th graders on a test about polygons and their characteristics are summarized below

Mathematics

1 answer:

nlexa [21]3 years ago

3 0

Answer: Part A: In which grade did the students do the best? Answer; 4th grade, they have a higher median of 68

Part B: what best describes the shape of the two graphs? Answer: 5th grade is roughly symmetrical without letters in fourth grade is skewed right

Step-by-step explanation: That’s for the answers for the 3rd question on Topic 4 of Section 9. Hope that helped:))

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Paul [167]

3(x + 1) = 5(x - 2) + 7

Distribute 3 and 5 inside their respective parentheses.

3x + 3 = 5x - 10 + 7

Combine like terms.

3x + 3 = 5x - 3

Add 3 to both sides.

3x + 6 = 5x

Subtract 3x from both sides.

6 = 2x

Divide both sides by 2.

4 0

3 years ago

Read 2 more answers

I really need help! Please find the area of the polygon?

blsea [12.9K]

Answer:can you help me

write a letter to your friend about important of reading books?

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3 years ago

Read 2 more answers

What are factors of 112? Explain your reasoning.

blondinia [14]

Answer:

1,2,4,7,8,14,16,28,56,112

Step-by-step explanation:

12 is a composite number. 112 = 1 x 112, 2 x 56, 4 x 28, 7 x 16, or 8 x 14

3 0

3 years ago

Find the distance between each pair of points. Round your answer to the nearest tenth, if necessary. Hint: Use the Pythagorean T

Paul [167]

The distance between two points on the plane is given by the formula below

$\begin{gathered} A=(x_1,y_1),B=(x_2,y_2) \\ \Rightarrow d(A,B)=\sqrt[]{(x_1-x_2)^2+(y_1-y_2)^2} \end{gathered}$

Therefore, in our case,

$A=(-1,-3),B=(5,2)$

Thus,

$\begin{gathered} \Rightarrow d(A,B)=\sqrt[]{(-1-5)^2+(-3-2)^2}=\sqrt[]{6^2+5^2}=\sqrt[]{36+25}=\sqrt[]{61} \\ \Rightarrow d(A,B)=\sqrt[]{61} \end{gathered}$

Therefore, the answer is sqrt(61)

In general,

$-(-n)=n$

Remember that

$-n=(-1)\cdot n$

Therefore,

$\begin{gathered} a-(-n)=a+(-1)(-n)=a+(-1)(-1\cdot n)=a+(-1)^2\cdot n=a+1\cdot n=a+n \\ \Rightarrow a-(-n)=a+n \end{gathered}$

6 0

2 years ago

7. Graph the following:<br> y = x/2 -3

Elodia [21]

Answer:

Step-by-step explanation:

pls mark me brainliest

8 0

3 years ago