MATHEMATICS COLLEGE

PLEASE HELP! A) 9 B) 8.6 C) 26.3 D) 5.7

Answers

Answer 1

Answer:

Answer:

x = 9.0

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj/ hyp

cos 39 = 7/x

x cos 39 = 7

x = 7/cos 39

x =9.007316961

x = 9.0

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What is the quotient and remainder of 8 divided 25

Answers

the answer is 3 reminder 1

An ESP experiment used the "Ten Choice Trainer." This is like the Aquarius, but with 10 targets instead of 4. Suppose that in 1,000 trials, a subject scores 173 correct guesses. Required:
a. Set up the null hypothesis as a box model.
b. The SD of the box is:_______
c. Make the z-test.
d. What do you conclude?

Answers

Answer:

a. The H0 is number of correct guesses is 173

b. Standard Deviation of box is 0.3

c. z-test value is 7.70

d. The difference does not appear due to chances of Variation.

Step-by-step explanation:

The standard deviation is :

$√(0.1 * 0.9)$ = 0.3

The standard deviation of the box is 0.3 approximately.

Z-score is $(x-u)/(standard error)$

Z-score = $(173-100)/(9.4868)$

the value of z-score is 7.70.

At the doctor’s office, Martin learns that his heart beats 360 times in 5 minutes.How many does his heart beat per minute?

Answers

To find this answer, just divide 360 by 5 to find out how many times his heart beats in one minute instead of 5. Doing this will give you a final answer of 72 bpm.

Assume the 72-gon is a regular polygon. The measure of one interior angle is how manydegrees, and the measure of one exterior angle is how many degrees?

Answers

9514 1404 393

Answer:

interior: 175°
exterior: 5°

Step-by-step explanation:

The sum of exterior angles is 360°, so the exterior angle can be easiest to find first.

exterior angle = 360°/72 = 5°

The interior angle is the supplement of this.

interior angle = 180° -5° = 175°

The measure of one interior angle is 175°; one exterior angle is 5°.

4s-12= 5s+51 what is the solution

Answers

Given data:

The given expression is 4s-12=5s+51.

The given expression can be written as,

4s-12=5s+51

4s-5s=51+12

-s=63

s=-63

Thus, the value of s is -63.

Does anyone have the answer for question 18?

Answers

Answer:

adef

Step-by-step explanation:

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