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liq [111]
3 years ago
11

Slove this problem with the quadratic equation x^2-22x=75

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

x=(+-)\sqrt{97}

Step-by-step explanation:

the parenthesis with the plus and minus is when the plus is on top and the minus is underneath.

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A film distribution manager calculates that 4% of the films released are flops. If the manager is correct, what is the probabili
Anit [1.1K]

Answer:

9.34%

Step-by-step explanation:

p = 4%, or 0.04

n = Sample size = 667

u = Expected value = n * p = 667 * 0.04 = 26.68

SD = Standard deviation = \sqrt{np(1-p)}  =\sqrt{667*0.04*(1-0.04)} = 5.06

Now, the question is if the manager is correct, what is the probability that the proportion of flops in a sample of 667 released films would be greater than 5%?

This statement implies that the p-vlaue of Z when X = 5% * 667 = 33.35

Since,

Z = (X - u) / SD

We have;

Z = (33.35 - 26.68) / 5.06

Z = 1.32

From the Z-table, the p-value of 1.32 is 0.9066

1 - 0.9066 = 0.0934, or 9.34%

Therefore, the probability that the proportion of flops in a sample of 667 released films would be greater than 5% is 9.34%.

6 0
3 years ago
Two numbers have a product of -36<br> They have a sum of -5<br> What are the two numbers?
neonofarm [45]

Answer:

-9,4

Step-by-step explanation:

4 0
2 years ago
Is rectangle EFGH the result of a dilation of rectangle ABCD with a center of dilation at the origin? Why or why not?
katrin [286]

Answer:

the answer is b bro

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve x = 0.6x + 384
Gelneren [198K]
X = 0.6x + 384        |subtract 0.6x from both sides

0.4x = 384    |divide both sides by 0.4

x = 960
8 0
3 years ago
Read 2 more answers
Say a population of fish triples every year. The population started with 5 fish. How many years will it
Lostsunrise [7]

Answer:

It should take 10 years

Step-by-step explanation:

In 1 year, if it triples, it should be 15 (population), and so on.

15

45

135

405

1215

3645

10935

32805

98415

295245

3 0
3 years ago
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