All categories

4 years ago

Help not sure if I’m right ( pic provided)

Mathematics

2 answers:

34kurt4 years ago

7 0

I think the right choice is C.

Nutka1998 [239]4 years ago

5 0

Your are right

A tangent <span>to a circle is perpendicular to the </span><span>radius
</span>
so

<PAB is a right angle

You might be interested in

I need help please and thank you

Sidana [21]

Answer:

135

Step-by-step explanation:

L*W*H

5*9*3=135 I think so I May be wrong

3 0

4 years ago

Read 2 more answers

A new anxiety medication has been manufactured and a study is being conducted to determine whether its effectiveness depends on

Irina18 [472]

The test statistics is used to determine if the anxiety medication can happen under a null hypothesis

The test statistics that is an appropriate hypothesis test is $z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}$

<h3>How to determine the test statistic</h3>

<u>40 milligrams of medication</u>

Patients = 60

Lower stress level patients = 21

The mean of this medication is:

$\bar x = \frac{x}{n}$

So, we have:

$\bar x_1 = \frac{21}{60}$

$\bar x_1 = 0.35$

<u>75 milligrams of medication</u>

Patients = 85

Lower stress level patients = 34

The mean of this medication is:

$\bar x = \frac{x}{n}$

So, we have:

$\bar x_2 = \frac{34}{85}$

$\bar x_2 =0.4$

The test statistic is then calculated as:

$z =\frac{\bar x_1 - \bar x_2}{\sqrt{\frac{\bar x_1(1 - \bar x_1)}{n_1} + \frac{\bar x_2(1 - \bar x_2)}{n_2}}}$

The equation becomes

$z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}$

Hence, the test statistics that is an appropriate hypothesis test is $z =\frac{0.35 - 0.40}{\sqrt{\frac{0.35(1 - 0.35)}{60} + \frac{0.40(1 - 0.40)}{85}}}$

Read more about test statistic at:

brainly.com/question/15980493

7 0

2 years ago

A new soft drink is being market tested. a sample of 400 individuals participated in the taste test and 80 indicated they like t

Ilya [14]

Answer:

Step-by-step explanation:

p/100* 400=80

*100 *100

400p=8000

:400 :400