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2 years ago

13

A history test has 30 questions. A student answers 90% of the questions correctly. How many questions did the student get correc

t.

1 answer:

algol132 years ago

7 0

Answer:

27 questions

Step-by-step explanation:

Hope this helps!

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Another bowler, Ryan Shafer, has a mean absolute deviation of 5. Based on the mean absolute deviation of Norm Duke, who has been

Wewaii [24]

Answer:

Ryan is a more consistent performer

Step-by-step explanation:

The complete question is

HEL 1. Shown are the final scores for Norm Duke in the past eight bowling tournaments.

299, 281, 285, 269, 280, 269, 286, 287

Part A: What is the mean absolute deviation of Norm Duke’s scores?

A.

7.50

B.

7.00

C.

7.25

D.

6.75

Part B: Based on the mean absolute deviation from Part A, who has been the more consistent bowler if Ryan Shafer has a mean absolute deviation of 7?

Solution

First we will find the mean deviation of Duke is 7.5

The standard deviation of Ryan is 7.0. This means that the average variation in case of Duke is higher than that of average variation of Ryan.

Hence, Ryan has been more consistent performer

4 0

2 years ago

Find the square of <br><img src="https://tex.z-dn.net/?f=7%20-%202%20%5Csqrt%7B%2010%7D%20" id="TexFormula1" title="7 - 2 \sqrt{

wlad13 [49]

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

3 0

2 years ago

Read 2 more answers

The range of the function

Rus_ich [418]

The range of this function is all real numbers. When it is a linear function it can reach negative and positive infinity.

4 0

3 years ago

Solve x2 + 14x = −24 by completing the square.<br><br> What is the solution set of the equation?

yan [13]

Hope this helps with the question :)

3 0

3 years ago

Read 2 more answers

Question 2(Multiple Choice Worth 5 points) (04.01)The Boardman family walked two over five of a mile in two over seven of an hou

Zolol [24]

Answer:

The unit rate in miles per hour = <em>1.4 miles/hr</em>

Step-by-step explanation:

Given that:

Distance walked by Boardman family = Two over five of a mile = $\frac{2}{5}\ miles$

Time taken by Boardman family = Two over seven of an hour = $\frac{2}{7}\ hour$

To find:

The unit rate in the miles per hour = ?

Solution:

Formula for the rate or the speed can be given as:

$Speed = \dfrac{Distance}{Time}$

Putting the values:

$\Rightarrow \dfrac{\frac{2}5}{\frac{2}7}\\\Rightarrow \dfrac{7}{5}\\\Rightarrow \bold{1.4\ miles/hr}$

So, the unit rate in miles per hour = <em>1.4 miles/hr</em>

4 0

3 years ago