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2 years ago

Evaluate the expression -2b+x when b=3 and x=-4

Mathematics

2 answers:

earnstyle [38]2 years ago

6 0

Answer:

-10 is the answer

Step-by-step explanation:

first things that you will replace each number in:

-2x3+(-4)=-10

Kryger [21]2 years ago

3 0

Answer:

the answer to the question is -10

Step-by-step explanation:

substitute the given into the question

-2(3)+(-4)

then open the parentheses/multiply

-6-4

then subtract them

-10

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How much air can the basketball<br> hold? With a radius of 3 inches. Round to the nearest hundredth.

choli [55]

Answer:

113.10 if you use the pi button

113.04 if you use 3.14

Step-by-step explanation:

We want to find the volume

V = 4/3 pi r^3

The radius is 3

V = 4/3 pi (3)^3

Using the pi button for pi

V = 113.09734

Rounding to the nearest hundredth

V = 113.10

If you use 3.14 for pi

V = 113.04

3 0

1 year ago

Wayne is hanging a string of lights 58 feet long around the three sides of his patio, which is adjacent to his house. The length

podryga [215]

Answer:

The length of the patio is 32 ft and the width is 13 ft

Step-by-step explanation:

see the attached figure to better understand the problem

Let

L ----> the length of his patio

W ---> the width of his patio

we know that

$L+2W=58$ ----> equation A

$L=2W+6$ ----> equation B

substitute equation B in equation A and solve for W

$2W+6+2W=58$

$4W+6=58$

$4W=58-6$

$4W=52$

$W=13\ ft$

Find the value of L

$L=2W+6$ ----> $L=2(13)+6=32\ ft$

therefore

The length of the patio is 32 ft and the width is 13 ft

3 0

2 years ago

What is the domain and range of the relation [(1, -8), (-7,8), (-3, 7). (-3, -5]?

Nadusha1986 [10]

Step-by-step explanation:

domain = {-7, -3, 1}

range ={-8, -5, 7, 8}

6 0

2 years ago

Pam made 1/2 gallon of tea for 10 people. Each person gets the same amount of tea. How much tea, in gallons, will each person ge

OverLord2011 [107]

You just divided 1/2 (.5) by 10 which is .05. so the answer is 0.05 gallons

6 0

2 years ago

What two step equation when solved does x=-3

Travka [436]

Answer:

x + 3 = 0.

Step-by-step explanation:

One would be:

x + 3 = 0 Subtract 3 from both sides:

x + 3 - 3 = 0 - 3

x = -3

7 0

2 years ago