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2 years ago

Help me find p.....

Mathematics

1 answer:

miskamm [114]2 years ago

7 0

Answer:

the angle size in an nonagon is 140°

Step-by-step explanation:

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Which expression is equivalent to 12+24p

gayaneshka [121]

Answer:

the answer is 'C' bacause you have to multiplied between them

3 0

2 years ago

A Simple random sample of 100 8th graders at a large suburban middle school indicated that 84% of them are involved with some ty

Setler [38]

Answer: a) (0.755, 0.925)

Step-by-step explanation:

Let p be the population proportion of 8th graders are involved with some type of after school activity.

As per given , we have

n= 100

sample proportion: $\hat{p}=0.84$

Significance level : $\alpha= 1-0.98=0.02$

Critical z-value : $z_{\alpha/2}=2.33$ (using z-value table)

Then, the 98% confidence interval that estimates the proportion of them that are involved in an after school activity will be :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

i.e. $0.84\pm (2.33)\sqrt{\dfrac{0.84(1-0.84)}{100}}$

i.e. $\approx0.84\pm 0.085$

i.e. $(0.84- 0.085,\ 0.84+ 0.085)=(0.755,\ 0.925)$

Hence, the 98% confidence interval that estimates the proportion of them that are involved in an after school activity : a) (0.755, 0.925)

3 0

3 years ago

Find the equation of the line

kirill115 [55]

Answer:

Step-by-step explanation:

The line is passing through 2 points: (0,9 and (3,3)

slope=(9-3)/(0-3)=-2

equation is : y-9=-2(x-0) or y=-2x+9

8 0

2 years ago

What’s the distance from c to d ?

Anon25 [30]

It’s 5 since you’d use Pythagorean theorem

3 0

3 years ago

monica and three friends went out to dinner. the bill came down to $60. they had excellent service so they wanted to leave a 20%

netineya [11]

Answer:

$72

Step-by-step explanation:

60 * 20% = $12

Hope this helps. Have a great day. :)

-wfz

5 0

3 years ago

Help me find p.....​

Help me find p.....