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2 years ago

I AM DOING MY HW AND I GOT STUCK ON THIS QUESTION CAN SOMEONE HELP ME AND EXPLAIN HOW THEY DID IT <333

Mathematics

1 answer:

gladu [14]2 years ago

3 0

i) Plan A: 21/0,12 = 175 <min of calls>

Plan B: 15/0,14 ≈ 107 <min of calls>

=> 2 plans cost the same 107 min of calls

ii) The cost when 2 plans cost the same:

Plan A: 107 × 0,12 = 12,84$ ≈ 13$
Plan B: 107 × 0.14 ≈ 15$

Answer: i) 107 ii) A: 13$ B: 15$

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Write in exponential form. 25

lukranit [14]

25 in exponential form: $25^{1}$

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3 years ago

A scientist who studies sleep has developed a new technique to help people sleep each night. He

Andru [333]

Considering the situation described, the scientist's null and alternative hypothesis are described by:

Null hypothesis $H_0: \mu = 0$ ; Alternative hypothesis $H_1: \mu \neq 0$ .

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

At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by $\mu$ is of 0, hence:

$H_0: \mu = 0$

At the alternative hypothesis, it is tested if there is a difference, hence:

$H_1: \mu \neq 0$

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

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2 years ago

Pls help Being timed

umka2103 [35]

(-6)-(+8)-(-12)
-6-8+12
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3 0

3 years ago

Read 2 more answers

Cone A has a diameter of 10 inches and Cone B has a diameter of 50 inches. If the cones are similar, find the volume ratio of Co

Tju [1.3M]

Answer:

cone A has a diameter of 10 inches and Cone B has a diameter of 50 inches. If the cones are similar, find the volume ratio of Cone A to Cone B.

Step-by-step explanation:

8 0

3 years ago

What is a possible value for the missing term of the geometric sequence ?

lesantik [10]

50 * 3 = 150 and 150 * 3 = 450

So the answer is b 150

3 0

4 years ago