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inysia [295]
2 years ago
8

If you take a number, multiply it by 3, then add 2, you could represent that phrase with the function:

Mathematics
2 answers:
Nutka1998 [239]2 years ago
7 0

Answer: take a number, add 2, and divide it all by 7.

Step-by-step explanation:

Brainliest plz!

a_sh-v [17]2 years ago
4 0

Answer:

Yes and for the second one it will be a number plus two and divide both factors by seven

Step-by-step explanation:

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ira [324]
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2 years ago
What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and
Ipatiy [6.2K]

Answer:

Step-by-step explanation:

We would set up the hypothesis test.

For the null hypothesis,

p = 0.24

For the alternative hypothesis,

p ≠ 0.24

This is a two tailed test

Considering the population proportion, probability of success, p = 0.24

q = probability of failure = 1 - p

q = 1 - 0.24 = 0.76

Considering the sample,

Sample proportion, P = r/n

Where

r = 12

n = 52

P = 12/52 = 0.23

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

z = (0.23 - 0.24)/√(0.24 × 0.76)/52 = - 0.17

Recall, population proportion, P = 0.24

The difference between sample proportion and population proportion(p - P) is 0.24 - 0.23 = 0.01

Since the curve is symmetrical and it is a two tailed test, the p for the left tail is 0.24 - 0.01 = 0.23

the p for the right tail is 0.24 + 0.01 = 0.25

These proportions are lower and higher than the null proportion. Thus, they are evidence in favour of the alternative hypothesis. We will look at the area in both tails. Since it is showing in one tail only, we would double the area

From the normal distribution table, the area below the test z score in the left tail 0.43

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p = 0.43 × 2 = 0.86

The level of significance is 5%

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7 0
3 years ago
What's the area of a circle with a circumference of 10π
Gnesinka [82]
C=10pi
C=2(r)pi so r=5
A=pi(r)^2
so A=pi(5)^2

A=25pi
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