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2 years ago

30 PTS HELP ME ASAP! PLEASE! IM TIRED AND NEED HELP!

Mathematics

1 answer:

almond37 [142]2 years ago

4 0

Answer:

Step-by-step explanation:

Slope is an average. In this particular context, the slope of 6.9 (or 7) means that an average of 7 people entered the store every hour.

If x is the number of hours the store is open and we are told to find the number of customers that have entered the store after 5 hours, we fill in the equation as follows:

y = 7(5) + 10 and

y = 35 + 10 so

y = 45.

If you use 6.9 instead of 7:

y = 6.9(5) + 10 and

y = 34.5 + 10 so

y = 45.5

Since you can't count a half of a person, using 7 instead of 6.9 makes more sense.

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Find the value of each variable

mina [271]

Answer:

x = 16 y= 16√3

Step-by-step explanation:

we know that a angle is 60 degrees. Thanks to this information we can say that x is half the hypothenuse, so is value is 16.

y can be express as √3/2 x 32 = 16√3

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2 years ago

In AMNO, m = 150 inches, n = 550 inches and o=630 inches. Find the measure of ZO

JulsSmile [24]

Answer:

115.8

Step-by-step explanation:

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2 years ago

Greg made the dart board shown. It is divided into equal sections. A dart is randomly thrown and lands on the board.

enyata [817]

Answer:

Step-by-step explanation:

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2 years ago

Marcus is picking songs to play during a slideshow. The songs are each 3\dfrac123

Lerok [7]

Answer:

9 songs

Explanation:

Given:

The slideshow is 31 whole number 1/2 minutes long

convert to an improper fraction

31×2+1/2 = 63/2

The songs are each 3 whole number 1/2 minutes long

convert to an improper fraction

3×2+1/2 = 7/2

To find the number of songs that Marcus is picking to play during a slideshow, divide the slideshow by the long of one song

(63/2) / (7/2)

= 9 songs.

6 0

2 years ago

If the scientist is accurate, what is the probability that the proportion of airborne viruses in a sample of 477 viruses would d

melisa1 [442]

Answer:

0.01596

Step-by-step explanation:

A scientist claims that 8% of the viruses are airborne

Given that:

The population proportion p = 8%

The sample size = 477

We can calculate the standard deviation of the population proportion by using the formula:

$\sigma_p = \sqrt{\dfrac{p(1-p)}{n}}$

$\sigma_p = \sqrt{\dfrac{0.8(1-0.8)}{477}}$

$\sigma_p = \sqrt{\dfrac{0.0736}{477}}$

$\sigma_p = 0.02098$

The required probability can be calculated as:

$P(| \hat p - p| > 0.03) = P(\hat p - p< -0.03 \ or \ \hat p - p > 0.03)$

$= P \bigg ( \dfrac{\hat p -p }{\sqrt{\dfrac{p(1-p)}{n}}} < -\dfrac{0.03}{0.0124} \bigg ) + P \bigg ( \dfrac{\hat p -p }{\sqrt{\dfrac{p(1-p)}{n}}} >\dfrac{0.03}{0.0124} \bigg )$

= P(Z < -2.41) + P(Z > 2.41)

= P(Z < -2.41) + P(Z < -2.41)

= 2P( Z< - 2.41)

From the Z-tables;

$P(| \hat p - p| > 0.03)$ = 2 ( 0.00798

$P(| \hat p - p| > 0.03)$ = 0.01596

Thus, the required probability = 0.01596

3 0

2 years ago