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3 years ago

13

The plot shown below describes the relationship between students' scores on the first exam in a class and their corresponding sc

ores on the second exam in the class. A line was fit to the data to model the relationship.

1 answer:

DiKsa [7]3 years ago

5 0

Answer: y=x estimate: 88

Step-by-step explanation:

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One day less than 3 weeks?

max2010maxim [7]

Answer:

20 Days

Explanation:

21 Days = 3 Weeks

Minus 1, that is 20 days.

6 0

3 years ago

Rewrite this logarithm as a subtraction of logs <br><br> Log4(13/37)

frozen [14]

$Use:\ \log_ab-\log_ac=\log_a\dfrac{b}{c}\\\\\log_4\dfrac{13}{37}=\log_413-\log_437$

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4 years ago

A normal distribution has a mean 20 and standard deviation 5. What is the z score that corresponds to the value x=222

sashaice [31]

Answer: The z score that corresponds to the value x=22 is 0.4 .

Step-by-step explanation:

Given : A normal distribution has a mean 20 and standard deviation 5.

i.e. $\mu=20$

$\sigma=5$

Let x be the random selected variable.

We know that to find the z-score corresponds to the value x is given by :-

$z=\dfrac{x-\mu}{\sigma}$

For x = 22, we have

$z=\dfrac{22-20}{5}=\dfrac{2}{5}\\\\\Rightarrow\ z=0.4$

Hence, the z score that corresponds to the value x=22 is 0.4

5 0

3 years ago

Ty worked 4 hours and earned $28. At this rate, how much would he earn in 9 hours?

lora16 [44]

Answer:

63

Step-by-step explanation:

Ty worked 4 hours ad earned $28. This means that he earned $7 per hour. So, 7 times 9 is equal to 63. Which means that Ty will earns $63 in 9 hours.

3 0

3 years ago

Read 2 more answers

Find three positive whole numbers that have the same answer added together or when multiplied together.

inessss [21]

Zero, Zero+Zero+Zero=0
0x0x0=0

8 0

4 years ago