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3 years ago

~!!!! HELPPPPPPPPP IM IN 7Th GRADE LEARNING 9TH AND 8TH HELP PLEASE !!!!~

Mathematics

1 answer:

Dafna1 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Plug the point (-1,20) into the equation.

20 = a|-1|+7

13 = a|-1|

13 = a ⋅ 1

a= 13

:::::

(1,20) is another point on the graph.

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nasty-shy [4]

6 pounds.

First, find the amount she spent. 70 - 18.88 = 51.12

Now, just divide 51.12 by the cost per pound. 51.12 / 8.52 = 6

So, Karen purchased 6 pounds of coffee.

Please consider marking this answer as Brainliest to help me advance.

6 0

3 years ago

Read 2 more answers

For a lower tail hypothesis test with a sample size of 10 and a .10 level of significance, the critical value of the test statis

Fynjy0 [20]

Using a t-distribution calculator, it is found that the critical value of the test statistic t is $t^{\ast} = -1.383$ .

<h3>How to find the critical value of a t-test?</h3>

The critical value is found using a calculator.

The inputs are:

The tail.

The amount of degrees of freedom, which is one less than the sample size.

The significance level.

In this problem, we have a<u> lower(left-tailed) test, with 10 - 1 = 9 df and a level of significance of 0.1</u>, hence the critical value is $t^{\ast} = -1.383$ .

You can learn more about the t-distribution at brainly.com/question/26062194

5 0

2 years ago

0.5x + 4 + 0.9x = x + 5

Law Incorporation [45]

Answer:

x=2.5

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Picasso's Phone Shop charges $33.16 for its activation fee plus $5.63 for every gigabyte, g, of data you use over your limit. Th

Alborosie

Answer:

5.63

Step-by-step explanation:

The Slope Intercept Formula is written as y=mx + b

In this case, cost = y, m = 5/63, and b = 33.16

y = 5.63 + 33.16

Since rate of change is the same as slope, or m, the rate of change = 5.63

-Chetan K

7 0

3 years ago

Combine the like terms to create an equivalent expression. Pleaseee helppp ASAP thankss

Nonamiya [84]

The answer is 2z+3. The like terms are 5z and -3z so you can subtract them and get 2z. Thus, the answer is 2z+3

3 0

3 years ago