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Maru [420]
3 years ago
8

Please do all these questions for me while i work on more work

Mathematics
1 answer:
anastassius [24]3 years ago
7 0
R = -4, s = 10, t = -7


19. -11

20. -17

21. 18

22. -3

23. 17

24. -14
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Francis mixes 3/8 gal of white paint, 2 7/8 gal of blue paint, and 1 1/4 gal of red paint.
Rina8888 [55]

List all the info:

3/8 gallon of white paint

2 7/8 gallon of blue paint

11/4 gallon of red paint

First, let’s answer the first question.

Francis has made _____ gal of paint when he first mixes the three colors.

Add all the gallons of paints together and you get 6. So, Francis has made 6 gal of paint when he first mixes the three colors.

Now for the second blank. All you have to do is do 6 divided by 3/8 which is 16. So, The constant of proportionality of white paint to gallons of mixed paint is 16.

Lastly, you will have to do is 3/8 x 7 = 2 5/8. (Im not too sure about this part though, but the rest I‘m pretty confident about)

3 0
3 years ago
20 POINTS PLEASE HELP ASAP!
Alexxandr [17]

Answer: increasing . . . positive . . . 2

Step-by-step explanation:

As best as I can tell . . .:

increasing . . . positive . . . 2.

The equation describing this line is y = 2x + 2

It has a positive (increasing) slope of 2 (with a y-intercept of +2).

4 0
3 years ago
Find the slope of the line that passes through (23,-3) and (81,91)
laiz [17]

Answer: m = 94 / 58 = 47 / 29 = 1.62069

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which of the following inequalities would be graphed with an open circle?
icang [17]

3(x - 2) < 18 and h + 6 > -3h + 12 would be graphed with an open circle.

Open circle is a term used for numbers that are less than (<) or greater than (>). On the other hand, Closed circle is used for numbers that are less than or equal to (≤ ) and greater than or equal to (≥).

Here, we are given four inequalities, let us check them one by one-

A. h + 6 > -3h + 12

⇒ 4h > 6

or h > 3/2

Here, we see that there is no equality sign, this means that 3/2 won't be included and hence h + 6 > -3h + 12 would be an open circle inequality.

B. 7 ≥ d/3

⇒ d ≤ 21

Here, we can clearly see the equality sign which means that 21 will be included. Hence, 7 ≥ d/3 would not be graphed with an open circle.

C. 3(x - 2) < 18

x - 2 < 6

x < 8

Here, we see that there is no equality sign, this means that 8 won't be included and hence 3(x - 2) < 18 would be graphed with an open circle.

D. 2y ≤ 14

y ≤ 7

Here, we can clearly see the equality sign which means that 7 will be included. Hence, 2y ≤ 14 would not be graphed with an open circle.

Thus, 3(x - 2) < 18 and h + 6 > -3h + 12 would be graphed with an open circle.

Learn more about inequalities here-

brainly.com/question/24372553

#SPJ9

3 0
2 years ago
You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats. You samp
MariettaO [177]

Answer:

Given:You sample 160 men, and 25% own cats

          You sample 120 women, and 20% own cats.

To Find : Find the test statistic, rounded to two decimal places.

Solution:

You sample 160 men, and 25% own cats.

No. of men have cats = \frac{25}{100} \times 160

                                    = 40

So, n_1=160 , y_1=40

You sample 120 women, and 20% own cats.

No. of women have cats = \frac{20}{100} \times 120

                                    = 24

So, n_2=120 , y_2=24

We will use Comparing Two Proportions

\widehat{p_1}=\frac{y_1}{n_1}

\widehat{p_1}=\frac{40}{160}

\widehat{p_1}=0.25

\widehat{p_2}=\frac{y_2}{n_2}

\widehat{p_2}=\frac{24}{120}

\widehat{p_2}=0.2

Let p_1 and p_2 be the probabilities of men having cat and women having cat receptively

H_0:p_1=p_2\\H_a:p_1

\widehat{p}=\frac{y_1+y_2}{n_1+n_2} =\frac{24+40}{160+120}=0.228

Formula of test statistic : \frac{\widehat{p_1}-\widehat{p_2}}{\sqrt{\widehat{p}(1-\widehat{p})(\frac{1}{n_1}+\frac{1}{n_2})}}

Substitute the values  

test statistic : \frac{0.25-0.2}{\sqrt{0.228(1-0.228)(\frac{1}{160}+\frac{1}{120})}}

test statistic : 0.986

So, test statistic is 0.986

8 0
4 years ago
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