MATHEMATICS HIGH SCHOOL

Write the linear equation between the points: (-4, 5) and (0, -2)a
b
y=7/4x+2
y=-7/4x-2
y=-4/7x-2
y=4/7x-2
C С
d

Answers

Answer 1
Answer:

Answer:

Hey there!

Slope: 7-3/1-(-1), which is equal to 4/2, or 2.

Point slope: y-7=2(x-1)

So choice B is correct.

Step-by-step explanation:

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Solve the inequality. Graph the solution set. 3(4b – 5) < –28 + 12b

What is 780 in scientific notation?

Answers

scientific notation is
x*10^y such that
1<x<10

780=7.8 times 100=7.8 times 10^2

7.8*10^2
Answer: 7.8*10^2
1<n<10
1<(7)<10

If the perimeter of a figure is doubled, then the dimensions were....?

Answers

they are doubled too..

A notebook costs $4.50 plus sales tax.after sales tax,the notebook is $4.86 what is the sales tax rate

Answers

The Rate of  Notebook Sales Tax is 8%.

What is sales Tax?

Sales Tax is a "consumption tax imposed by the Government on the sales of  Goods and Services".

According to the question,

Cost of Notebook before tax = $ 4.50

Cost of Notebook after tax = $4.86

Formula for Rate of sales tax =  (Cost of Notebook before tax -Cost of Notebook after tax ) divided by Cost of Notebook before tax.

Rate of sales tax = (4.50 - 4.86) ÷ 4.50                                        

                             =  0.08.

converting into Percentage, multiply 0.08 into 100

= 0.08 × 100

= 8%.

Hence, rate of sales tax of note book is 8%.

To learn more about Tax Rate here

brainly.com/question/11467663

#SPJ2
The sales tax rate would be 8%.

To find how much you spent on tax in the total, you'd begin by subtracting the pre-tax notebook from the after tax notebook.

4.86 - 4.50 = 0.36

So now we know that you spent 36 cents on tax. From there, we'd divide our money spent on tax by our pre-tax total. 

0.36 ÷ 4.50 = 0.08

This means that the sales tax is 8%. 

Hope I could help!

Jenny wants a total of 12 barbie dolls by the time she is 9 years old.She has 4 barbie dolls. how many more does she need?

Answers

Answer:

she needs 8

Step-by-step explanation:

12-4=8

What is the value of the expression below?8^1/3

A. 4
B.8/3
C.2/3
D. 2.

Answers

The answer is 2. The power of 1/3 represents the cube root of a number. 2 multiplied by its self is 8.

Answer:

Step-by-step explanation:

8=2^3 so

(2^3)^(1/3)

2^(3(1/3))

2^1

2

Does anybody know the answer. 51 - 3 + 5k = 58

Answers

Answer:

k=2

Step-by-step explanation:

1. 48+5k=58

2. 5k=58-48

3. 5k=10

4. k=10/5

5. k=2
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