3 years ago

Use a number line to find the value of the expression -4+4-9 what property can you use to make your calculation easier explain

Mathematics

1 answer:

Bess [88]3 years ago

8 0

You can put the -4 and -9 together and put it at the end to make the new sequence 4-13 which would leave you with -9

You might be interested in

Please help me i don't know how to do this no more

aalyn [17]

Answer:

z/3 = 3/2 so 2z = 9 z = 4.5 cuz triangles are proportional

5 0

2 years ago

Write area or perimeter for each situation. Carpeting a floor

Fynjy0 [20]

Hello!

Your answer is area because area refers to a region, while perimeter only refers to the surrounding boundary of a figure. If you're going to carpet a floor, you will want to cover the entire area of the floor.

6 0

3 years ago

Read 2 more answers

Benjamin drove 278 miles in 4 hours.

kondor19780726 [428]

Step-by-step explanation:

$rate \:of \: driving \\ = \frac{278}{4} \\ = 69.5 \: mph$

6 0

3 years ago

The area of the photo will be half the area of the entire ad. What is the value of x

Ksenya-84 [330]

Answer:

Need more information

Step-by-step explanation:

8 0

3 years ago

Which expression is equivalent to this expression? x(2x+3) Question 1 options: 2x2+3 2x2+3x 2x2−3x 3x + 3

sleet_krkn [62]

Answer:

$2x^2+3x$ is the expression which is equivalent to $x\left(2x+3\right)$ .

In other words:

$x\left(2x+3\right)=2x^2+3x$

Step-by-step explanation:

Given the expression

$x\left(2x+3\right)$

solving

$x\left(2x+3\right)$

$\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$

$a=x,\:b=2x,\:c=3$

$=x\cdot \:2x+x\cdot \:3$

$=2xx+3x$

$=2x^2+3x$ ∴ $2xx=2x^2$

Thus,

$x\left(2x+3\right)=2x^2+3x$

Therefore, $2x^2+3x$ is the expression which is equivalent to $x\left(2x+3\right)$ .

8 0

3 years ago