Start by adding 13 to both sides

19 = 4b-13
<span>19+13 = 4b-13+13
</span>32 = 4b
4b = 32

Then divide both sides by 4 to isolate b

4b = 32
4b/4 = 32/4
b = 8

So in the end, b = 8

5 0

4 years ago

Read 2 more answers

What’s 38,000 * 16 please help me

Julli [10]

Answer:

608,000

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

4w2 + 3W

timama [110]

Question:

A homeowner is building a flower bed in the backyard. He plans to put a layer of fertilizer over the entire flower bed.

$Length = 4w^2 + 3w - 1$

$Width = 5w - 2.$

Which expression represents the area in square feet that the homeowner will cover with fertilizer?

Answer:

$Area = 20w^3 + 7w^2 - 11w + 2$

Step-by-step explanation:

Given

$Length = 4w^2 + 3w - 1$

$Width = 5w - 2.$

Required

Determine an expression for the area

Area is calculated as:

$Area = Length *Width$

$Area = (4w^2 + 3w - 1) * (5w - 2)$

Expand

$Area = 20w^3 + 15w^2- 5w - 8w^2 - 6w + 2$

Collect like terms

$Area = 20w^3 + 15w^2- 8w^2 - 5w - 6w + 2$

$Area = 20w^3 + 7w^2 - 11w + 2$

8 0

3 years ago

Line Equations from Point/Slope

Hoochie [10]

keeping in mind that a line with an undefined slope is a vertical line, Check the picture below.

3 0

2 years ago