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3 years ago

7th grade math help me plzzzz

Mathematics

1 answer:

daser333 [38]3 years ago

5 0

Answer:

6 is the answer

Step-by-step explanation:

.......

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Factor each trinomial.<br>1. x2 + 7x + 10

Pani-rosa [81]

Answer:

I dont know about you, but my teacher taught me to use MAN

M= 10 (the c value)

A= 7 (the b value)

N= +5, +2 (two numbers that multiply and add to give you 10 and 7. For example, 5 times 2= 10 and 5 plus 2 = 7)

ANSWER: (x+5)(x+2)

if you have any questions let me know.

7 0

3 years ago

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You must use the Substitution method

elena-14-01-66 [18.8K]

3x+2y=5w is your answer so your main/real answer is 5w

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3 years ago

A study involved measuring the average IQ of Americans. What does the Central Limit Theorem say about the study? As long as the

Alexxx [7]

Answer:

As long as the sample size n is large enough: The average IQ of Americans in the sample will be normally distributed.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n of at least 30 can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$

So the correct answer is:

As long as the sample size n is large enough: The average IQ of Americans in the sample will be normally distributed.

5 0

3 years ago

What are the coordinates of the midpoint of the segment with endpoints at (-3, -4) and (5, 8)?

lord [1]

Answer:

(4, ``6)

Step-by-step explanation:

The midpoint formula is

((x sub 2 - x sub 1)/2, (y sub 2 -y sub 1)/2). As shown, its written like a coordinate

Your x sub 1 is the x-coordinate of your first coordinate pair, and the rest follow the same pattern.

So, (5-(-3)/2, 8-(-4)/2)

5-(-3)=5+3=8

8-(-4)=8+4=12

(8/2, 12/2)

(4,6)

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3 years ago

3c-d=T<br> Could you<br> solve for c

RSB [31]

- - Let's solve for C.

Starting off with our equation:
$3c+d=T$

Transform:
$3c=T+D$

Solve for that:
$\frac{3c}{3} = \frac{T+D}{3}$

Solve for that for the last time and your answer is $\frac{T+D}{3} =C$

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3 years ago

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