2 years ago

Can someone pls help me

Mathematics

1 answer:

netineya [11]2 years ago

4 0

Answer:

? what do u want me todo

Step-by-step explanation:

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78% of the class completed their homework last night. What fraction of the class completed their homework?

mixas84 [53]

Answer:

$\frac{39}{50}$

Step-by-step explanation:

=> 78% makes:

=> $\frac{78}{100}$

<u><em>In simplest form:</em></u>

=> $\frac{39}{50}$

3 0

3 years ago

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Your medical research team is investigating the standard deviation of the cost of a 30-day-supply of a certain heart medication.

Valentin [98]

Considering the situation described, the hypothesis tested are given as follows:

The null hypothesis is $H_0: \sigma \geq 23$

The alternative hypothesis is $H_1: \sigma < 23$

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the standard deviation is not less than $23, that is:

$H_0: \sigma \geq 23$

At the alternative hypothesis, it is tested if there is significant evidence t conclude that the standard deviation is less than $23, that is:

$H_1: \sigma < 23$

More can be learned about an hypothesis test at brainly.com/question/26454209

4 0

2 years ago

I need help with this question, thank you. EXPLAIN.

ratelena [41]

Answer:

263.76

Step-by-step explanation:

It is 7 times 12 times 3.14. Then you round your answer

8 0

2 years ago

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the sphere at the right fits snugly inside a cude with 14in edges. what is the approximate volume of the space between the spher

ella [17]

Answer:Find the vol of the sphere:

radius of the sphere = 3 in

V = %284%2F3%29%2Api%2A3%5E3

V = 97.858

Find the vol between the sphere and cube:

216 - 97.858 = 118.142 cu/in

Step-by-step explanation:

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2 years ago

List the ways Congress deals with foreign policy.

In-s [12.5K]

Approving declarations of war
Approving embargos
Approving alliances
but most of this is done by the senate not House of Reps

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3 years ago