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Gnom [1K]
3 years ago
6

PLEASE HELP WILL MARK AS BRAINIEST!!!!!!!!!!

Mathematics
2 answers:
Airida [17]3 years ago
7 0

Group up the like terms and combine them

2x^2 and -7x^2 add up to -5x^2

6x and 2x add up to 8x

1 and -3 add up to -2

We end up with -5x^2 + 8x - 2

<h3>Answer: Choice B</h3>
PIT_PIT [208]3 years ago
3 0

your missing the exponent but

B

Step-by-step explanation:

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Please explain your answer. Thank you!
Liula [17]

Answer:

C

Step-by-step explanation:

Let length of rectangle be "l"

Let width of rectangle be "w"

We know,

LENGTH is 2 MORE THAN WIDTH, we can write:

l = w + 2

Also, note the perimeter is the sum of all 4 sides of a rectangle, thus:

length + width + length + width

Now,

The perimeter is given as 72, so we can write:

l + l + w + w = 72

2l + 2w = 72

We have 2 equations that we need to solve and find the length (l).

The first equation is:

l = w + 2

Rearranging, we have:

w = l - 2

We put this into 2nd equation and find the value of l:

2l + 2w = 72\\2l + 2(l-2) = 72\\2l+2l-4=72\\4l-4=72\\4l=76\\l=\frac{76}{4}\\l=19

The length is 19 meters, the correct answer is C

3 0
4 years ago
The value of mn is part of what subset(s) of the real numbers? Select all that apply. rational numbers irrational numbers intege
antiseptic1488 [7]
Rational numbers integers whole numbers.

7 0
3 years ago
Read 2 more answers
Write inequalites to describe the region. The solid cylinder that lies on or below the z=8 and or above the disk in the xy-plane
Vladimir79 [104]

Answer:

x^2 + y^2 <= 4, 0 <= z <= 8

Step-by-step explanation:

  1. Region that lies on/below the plane means Z<=8
  2. Region that lies on/above the xy plane means Z>=0.

Combining 1 and 2, we get

0<=Z<=8

If we want disk  of radius 2 in x-y plane to be centered at origin the inequality becomes:

x^2 + y^2 <= 4

8 0
3 years ago
PLZ HELP
slamgirl [31]

Answer:

6 hours

Step-by-step explanation:

2x6=12

3 0
3 years ago
Read 2 more answers
Which is a correct description of the polygon?
Aliun [14]

Answer:

D.It is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

Step-by-step explanation:

You are so very welcome!!!

6 0
4 years ago
Read 2 more answers
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