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3 years ago

12

A study found that there is no direct relationship between the time that 8th-grade students spend brushing their teeth and their

final math grade for the year.
What is the correlation?

A.) negative
B.) positive
C.) no correlation

1 answer:

Elza [17]3 years ago

7 0

Answer:

c

Step-by-step explanation:

no correlation, because there's no direct relationship

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A number,n,is multiplied by -5/8. The product is -0.4. What is the value of n?

Over [174]

N(-5/8)=-0.4
times both sides by -8/5
n(-40/-40)=3.2/5
n1=0.64
n=0.64

8 0

2 years ago

Read 2 more answers

I will give brainliest to the first person who answers.

nasty-shy [4]

Answer:

the answer is $\sqrt{5\\}$ , and - $\sqrt{5\\}$ which is C.

Step-by-step explanation:

well I got that answer by doing this

we have $x^{2}$ = 5

For $x^{2}$ = f (a) the solutions are x = $\sqrt{f(a)\\}$ , - $\sqrt{f(a)\\}$

so in this case the solutions are $\sqrt{5\\}$ , and - $\sqrt{5\\}$

HOPE THIS HELPS :)

3 0

3 years ago

Someone pls help me I turn this in today the answer is there I just need to show work pls help me

dolphi86 [110]

Hello and Good Morning/Afternoon

<u>Let's tale this problem step-by-step</u>:

<u>What does the problem want:</u>

$\hookrightarrow \text{the unemployment compensation}$

<u>Employment compensation</u> =55% of the average of the last 26-week salary

$\hookrightarrow \text{Average of Natalia's salary} = (\text{all the salaries added up}) / (\text{number of weeks})\\\hookrightarrow \text{Average of Natalia's salary} = 18940 / 26 = 728.46 \text{ (Rounded down)}$

⇒ 55% of that average

$\hookrightarrow \frac{55}{100} *728.46 = 400.65$

<u>Answer: $400.65</u>

Hope that helps!

#LearnwithBrainly

5 0

1 year ago

I<br> 8. Classify 8 as a perfect square, a perfect cube, both, or neither.

Murljashka [212]

Answer:

It's a perfect cube, but not a perfect square.

Step-by-step explanation:

2^3 = 8, meaning 8 is a perfect cube. But since 2^2 = 4 and 3^2 = 9, and 8 is in between, 8 is not a perfect square.

I hope this helped.

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3 years ago

an entertainment firm offers several DJ choices and light show that range in price based on the rental time period. the DJ's cos

Mnenie [13.5K]

Answer:

219 + 159 <= x <= 369 + 309

378 <= x <= 678

Step-by-step explanation:

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2 years ago