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3 years ago

Find the cube of : (2a-b)

Mathematics

2 answers:

Molodets [167]3 years ago

6 0

Answer:

It is step by step ,you can directly copy it but you don't need to copy the formula in your answer

Step-by-step explanation:

(2a-b)

olchik [2.2K]3 years ago

4 0

Answer:

Step-by-step explanation:

(2a + b)³

(2a)³ + b³ + (3)(2a)²(b) + (3)(2a)(b)²

8a³ + b³ + 12a²b + 6ab²

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For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitt

Svet_ta [14]

Answer:

Step-by-step explanation:

Let h represent the number of hours of babysitting.

C represents the total cost of babysitting for h hours.

For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Therefore, the equation would be

C = 5h + 3

Comparing the equation with the slope intercept form, y = mx + c,

The slope = 5

The y intercept = 3

If she babysits for 5 hours, the cost would bee

C = 5 × 5 + 3

C = $28

5 0

3 years ago

A. The solution is (−2,−3)

Cerrena [4.2K]

9514 1404 393

Answer:

D. (-3, -2)

Step-by-step explanation:

The equations have different coefficients for x and y, so will have one solution. The solutions offered are easily tested in either equation.

Using (x, y) = (-2, -3):

x = y -1 ⇒ -2 = -3 -1 . . . . False

Using (x, y) = (-3, -2):

x = y -1 ⇒ -3 = -2 -1 . . . .True

2x = 3y ⇒ 2(-3) = 3(-2) . . . . True

The solution is (-3, -2).

If you'd like to solve the set of equations, substitution for x works nicely.

2(y -1) = 3y

2y -2 = 3y . . eliminate parentheses

-2 = y . . . . . . subtract 2y

x = -2 -1 = -3

The solution is (x, y) = (-3, -2).

5 0

3 years ago

Calen is comparing the prices per child for hosting a birthday at Mr. Bob’s Buffet and Sally’s Pizza Safari.

Bas_tet [7]

Answer:

The cost per child is $2.50 more at Mr. Bob’s Buffet than it is at Sally’s Pizza Safari

Step-by-step explanation:

The missing table in the attached figure

step 1

Find the cost per child at Mr. Bob’s Buffet

we know that

The cost per child or unit rate is the same that the slope of the linear equation

From the graph take two points

(0,0) and (4,60)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute

$m=\frac{60-0}{4-0}$

$m=\$15\ per\ child$

step 2

Find the cost per child at Sally’s Pizza Safari.

From the data in the table

we have

(4,50) and (6,75)

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute

$m=\frac{75-50}{6-4}$

$m=\$12.5\ per\ child$

step 3

Verify each statement

case A) The cost per child is $2.50 more at Mr. Bob’s Buffet than it is at Sally’s Pizza Safari

The statement is true

Because

The cost per child is $15 at Mr. Bob’s Buffet

The cost per child is $12.50 at Sally’s Pizza Safari

The difference is $2.50 per child

case B) The cost per child is $10.00 more at Mr. Bob’s Buffet than it is at Sally’s Pizza Safari

The statement is false (see the explanation)

case C) The cost per child is $15.00 more at Mr. Bob’s Buffet than it is at Sally’s Pizza Safari

The statement is false (see the explanation)

case D) The cost per child is $5.00 more at Mr. Bob’s Buffet than it is at Sally’s Pizza Safari.

The statement is false (see the explanation)

7 0

3 years ago

Can anyone help me please solving these maths problems, first time. Thanks.

olga_2 [115]

I think the answer is 2/2

5 0

4 years ago

What is the quotient? 6)12 A 2 B. 3 C. 4 D. 5

Dahasolnce [82]

Answer:

A.2 po

Step-by-step explanation:

himdi po ako sure sa answer ko

3 0

3 years ago

Read 2 more answers