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max2010maxim [7]
3 years ago
8

Please help quickly gets brainliest

Mathematics
1 answer:
neonofarm [45]3 years ago
5 0

\frac{3}{2} =\frac{90}{60} =\frac{120}{80}

They are proportional with a ratio of 2:3

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A travel agency has 2,106 people registered for a trip. Each tour bus can seat 54 people.
mariarad [96]

Answer:

39 buses

Step-by-step explanation:

2,106 ÷ 54 = 39

8 0
3 years ago
Use the t-distribution and the sample results to complete the test of the hypotheses. Use a significance level. Assume the resul
Ksenya-84 [330]

Answer:

Test statistic = 1.3471

P-value = 0.1993

Accept the null hypothesis.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 4

Sample mean, \bar{x} = 4.8

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 2.3

First, we design the null and the alternate hypothesis

H_{0}: \mu = 4\\H_A: \mu \neq 4

We use two-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{4.8 - 4}{\frac{2.3}{\sqrt{15}} } = 1.3471

Now, we calculate the p-value.

P-value = 0.1993

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept it.

3 0
3 years ago
What is the value of m in the figure? In this diagram ABD~BCD
Margaret [11]

Answer:

<h2>D.  √136</h2><h2 />

Step-by-step explanation:

see attached sketch

7 0
3 years ago
Find the product of z1 and z2, where z1 = 5(cos 60° + i sin 60°) and z2 = 7(cos 210° + i sin 210°)
Verizon [17]

Answer:

cos210=cos(180+30)=−cos30=−√32 . sin210=sin(180+30)=−sin30=−12 . 3(cos210+isin210) =3(−√32)+3i(−12). −(32)√3−(32)i. My favourite way of seeing that sin30=12 and cos30=√32 is ...

Step-by-step explanation:

But that's what I say personally

3 0
3 years ago
All of the following are equivalent except _____.
lianna [129]

Answer:

-5(x - 1)

Step-by-step explanation:

you would get -5x - 5 if you solved it

8 0
3 years ago
Read 2 more answers
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