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3 years ago

Can y’all help me on question nine?!

Mathematics

1 answer:

Fudgin [204]3 years ago

5 0

Answer:

Step-by-step explanation:

x=2

x³+7x+2

2³+14+2

8+14+2

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Help there are five people at the carnival they are 15 people at the other carnival how many people are there

faltersainse [42]

I think there are 20 people

7 0

3 years ago

A random sample of 300 circuits generated 13 defectives. Use the data to test the hypothesis Upper H Subscript 0 Baseline colon

____ [38]

Complete Question

A random sample of 300 circuits generated 13 defectives. a. Use the data to test

$H_o : p = 0.05$

Versus

$H_1 : p \ne 0.05$

Use α = 0.05. Find the P-value for the test

Answer:

The p-value is $p-value = 0.5949$

Step-by-step explanation:

From the question we are told that

The sample size is n = 300

The number of defective circuits is k = 13

Generally the sample proportion of defective circuits is mathematically represented as

$\^ p = \frac{k}{n}$

=> $\^ p = \frac{13}{300}$

=> $\^ p = 0.0433$

Generally the standard Error is mathematically represented as

$SE = \sqrt{\frac{p(1- p)}{n} }$

=> $SE = \sqrt{\frac{0.05(1- 0.05)}{300} }$

=> $SE = 0.0126$

Generally the test statistics is mathematically represented as

$z = \frac{\^ p - p }{SE}$

=> $z = \frac{0.0433 - 0.05 }{0.0126}$

=> $z = -0.5317$

From the z table the area under the normal curve to the left corresponding to -0.5317 is

$(P < -0.5317 ) = 0.29747$

Generally the p-value is mathematically represented as

$p-value = 2 * P(Z < -0.5317 )$

=> $p-value = 2 * 0.29747$

=> $p-value = 0.5949$

3 0

3 years ago

PLEASE HELP IM DESPERATE WILL GIVE BRAINLIEST ONLY ANSWER IF YOU ARE HELPING

VARVARA [1.3K]

Answer:

Step-by-step explanation:

u • w

= (i + 6j ) • (9i - 2j )

= (1 × 9 ) + (6 × - 2 )

= 9 + (- 12)

= 9 - 12

= - 3

v • w

= (5i - 3j ) • (9i - 2j )

= (5 × 9) + (- 3 × - 2)

= 45 + 6

= 51

Then

u • w + v • w

= - 3 + 51

= 48

7 0

3 years ago

I turned it in and it says we got one wrong(out of those blanks). I've checked over it several times but I can't figure out whic

Colt1911 [192]

Answer:

Try as percentages so

7) 37.5%

8) 50%

9) 12.5%

10) 62.5%

11) 87.5%

12) 50%

13) 62.5%

14) 37.5%

15) 100%

Step-by-step explanation:

8 0

4 years ago

Marine biked 3/4 of a mile on Monday. On Tuesday he biked 5 times this distance. The number of miles marine bikes on Tuesday is

PolarNik [594]

It's simple. First, multiply 3/4 by 5. As a decimal, this equals 3.75. Therefore, the number of miles marine bikes on Tuesday is between 3 and 4.

Hope I helped! :)

4 0

3 years ago