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zloy xaker [14]

3 years ago

8

You receive an $80 gift card to a bookstore. Hardback books cost $8 and paperbacks cost $4. Which graph below represents this si

tuation?

1 answer:

Natasha2012 [34]3 years ago

6 0

The answer is D i had a similar question

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A triangle has one angle that measures 40 and another that measures 38. What is the measure of the triangles third angle

mr_godi [17]

Answer:

102°

Step-by-step explanation:

that's the answer because 40+ 38 = 78. then 180- 78 = 102. Remember that in tringles, all three angles should add up to 180°

4 0

3 years ago

In a survey of 120 adult , 88 drink cold drink and 26 drink soft drink. If 17 of them drink neither of them, findout the number

12345 [234]

Answer: 11 people

Explanation:

Find the total people who actually drink something:

120 - 17 = 103

Find the sum of people who drink cold and soft drink:

88 + 26 = 114

Find the people who drinks both:

114 - 103 = 11 people

5 0

3 years ago

Read 2 more answers

What is the equation of the line with an x-intercept of -2 and a y-intercept of 1?

vaieri [72.5K]

Answer:

the desired line is y = (1/2)x + 1

Step-by-step explanation:

Write these two points as (0, 1) and (-2, 0).

Now, as we go from (-2, 0) to (0, 1), x increases by 2 and y increases by 1. Thus, the slope, m, of the desired line is m = rise / run = 1 / 2.

Then the desired line is y = (1/2)x + 1 (since b is already given as (0, 1) )

5 0

3 years ago

Lolllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

Dafna1 [17]

Answer:

The trapezoid.

Step-by-step explanation:

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6 0

3 years ago

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The u.s. department of health and human services collected sample data for 772 males between the ages of 18 and 24. that sample

soldier1979 [14.2K]

The 99% confidence interval for the true mean is given by:

$\bar{x}\pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

where:

$\bar{x}$ is the sample mean = 69.7
$\sigma$ is the standard deviation = 2.8
$z_{\alpha/2}$ is the test statistics = 2.58 for for 99% confidentce interval.
n is the sample size = 772.

Therefore, the 99% confidence interval is:

$69.7\pm2.58\left( \frac{2.8}{\sqrt{772}} \right)=69.7\pm2.58(0.1008) \\ \\ =69.7-0.26\leq\mu\leq69.7+0.26 \\ \\ =69.44\leq\mu\leq69.96$

6 0

3 years ago

Read 2 more answers