All categories

3 years ago

Please help me thanks!!!

Mathematics

1 answer:

Basile [38]3 years ago

5 0

Answer: 11
step by step instructions: so you have your statement. (3/7)r+(5/8)s you then would plug in (14) for (r) and (8) for (s).once you plug these in you then simplify the statement. (3/7)*14=6 and (5/8)*8=5. so your new statement should be 6+5=11
hope this helps

You might be interested in

The distance from your house to the ice cream shop is 12 miles. Your best friends house is on the segment between your house and

AfilCa [17]

See attachment

distance from ice cream to your house=distance from ice cream to friend+distance from friend to your house

distance from ice cream to your house=12
distance from ice cream to friend=?
distance from friend to your house=3

12=?+3
minus 3 both sides
12-3=?+3-3
9=?+0
9=?

answer is 9 miles

4 0

3 years ago

A manufacturer of widgets wants to test a new widget-producing machine to determine if it can make an average of 25 widgets per

klio [65]

Using the t-distribution, it is found that since the p-value is greater than 0.01, there is no evidence that the new machine should be rejected at the 0.01 significance level.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the average is not less than 25, that is:

$H_0: \mu \geq 25$

At the alternative hypothesis, it is tested if the average is less than 25, that is:

$H_1: \mu < 25$

<h3>What is the test statistic?</h3>

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

Considering the situation described, the values of the parameters are given as follows:

$\overline{x} = 24.97, \mu = 25, s = 2.16, n = 10$

Hence the test statistic is:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{24.97 - 25}{\frac{2.16}{\sqrt{10}}}$

t = -0.04

<h3>What is the p-value and the conclusion?</h3>

Using a t-distribution calculator, for a left-tailed test, as we are testing if the mean is less than a value, with 10 - 1 = 9 df and t = -0.04, the p-value is of 0.4844.

Since the p-value is greater than 0.01, there is no evidence that the new machine should be rejected at the 0.01 significance level.

More can be learned about the t-distribution at brainly.com/question/13873630

#SPJ1

3 0

2 years ago

Write and solve an equation to find the value of the X I'm going to post three pictures Can someone please help me get the answe

marta [7]

9514 1404 393

Answer:

x = 19
x = 34
x = 39

Step-by-step explanation:

1. A right angle has a measure of 90°. The whole is the sum of the parts.

(2x +3)° +49° = 90°

2x +52 = 90 . . . . . . . . divide by °, collect terms

2x = 38 . . . . . . . . . . . . subtract 52

x = 19 . . . . . . . . divide by 2

2. A linear pair measures 180°. The whole is the sum of the parts.

(x -5)° +151° = 180°

x +146 = 180 . . . . . . . divide by °, collect terms

x = 34 . . . . . . . . .subtract 146

3. We presume this pair of angles is supposed to be supplementary. That is, their sum is 180°.

64° +(3x -1)° = 180°

3x +63 = 180 . . . . . . . divide by °, collect terms

3x = 117 . . . . . . . . subtract 63

x = 39 . . . . . divide by 3

3 0

3 years ago

Please help!! Will give brainliest!!!! Photo above

Mekhanik [1.2K]

Answer:

c is your awnser

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Rebekah used a total of 144 tiles to make 4 placemats. She used 32 tiles each to make two placemats and y tiles to make the thir

valkas [14]

Answer:

POG

Step-by-step explanation:

POGGERS

8 0

3 years ago