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patriot [66]
3 years ago
9

=> Please Help Me With My Math <=

Mathematics
1 answer:
GuDViN [60]3 years ago
6 0

Answer:

B

Step-by-step explanation:

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I will mark brainliest when allowed!
Sergeeva-Olga [200]

Answer:

-0.2

Step-by-step explanation:

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2 years ago
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Which angle is congruent to angle ACB
ANEK [815]

Answer:

there is no pictures sorry

3 0
3 years ago
In 2008, data from the Center for Disease Control revealed that 28.5% of all male teenagers, aged 18-19 and attending U.S. colle
m_a_m_a [10]

Answer:

a) H0 : u = 28.5%

H1 : u < 28.5%

b) critical value = - 1.645

c) test statistic Z= - 1.41

d) Fail to reject H0

e) There is not enough evidence to support the professor's claim.

Step-by-step explanation:

Given:

P = 28.5% ≈ 0.285

X = 210

n = 800

p' = \frac{X}{n} = \frac{210}{800} = 0.2625

Level of significance = 0.05

a) The null and alternative hypotheses are:

H0 : u = 28.5%

H1 : u < 28.5%

b) Given a 0.05 significance level.

This is a left tailed test.

The critical value =

-Z_0.05 = -1.645

The critical value = -1.645

c) Calculating the test statistic, we have:

Z = \frac{p' - P}{\sqrt{\frac{P(1-P)}{n}}}

Z = \frac{0.2625 - 0.285}{\sqrt{\frac{28.5(1-28.5)}{800}}}

Z = -1.41

d) Decision:

We fail to reject null hypothesis H0, since Z = -1.41 is not in the rejection region, <1.645

e) There is not enough evidence to support the professor's claim that the proportion of obese male teenagers decreased.

5 0
3 years ago
ira has 128 stamps in his stamp album he has the same number of stamps on each of the 8 pages how many stamps are on each page
den301095 [7]
There are several important information's already given in the question. Based on those given information's the answer to the question can be easily deduced.
Number of stamps that Ira has in his stamp album = 128
Number of pages that the stamp album has = 8
Then
Number of stamps in each page of the stamp album = 128/8
                                                                                     = 16
So 16 stamps are there on each page of the stamp album. I hope the procedure is clear enough for you to understand. You can always use this method for solving similar type of problems in future without requiring any additional help.
5 0
3 years ago
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A spinner is numbered 1 through 5 is spun 3 times. What is the probability of spinning a number less than 3, then a number great
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For the first two,the probability is 0.4, and for # 3,the probability is .2
8 0
3 years ago
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