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Fynjy0 [20]
3 years ago
7

Please help me with this question step by step. A rectangle has a width of 2x exponent 2 +4x+1) and a length of (8-x). What is t

he function for the area of the rectangle?
Mathematics
1 answer:
timurjin [86]3 years ago
6 0

Answer:

A = (2x² + 4x + 1) (8 − x)

A = -2x³ + 12x² + 31x + 8

Step-by-step explanation:

W = 2x² + 4x + 1

L = 8 − x

Area is width times length.

A = (2x² + 4x + 1) (8 − x)

If you wish, you can simplify with distribution.

A = 8 (2x² + 4x + 1) − x (2x² + 4x + 1)

A = 16x² + 32x + 8 − 2x³ − 4x² − x

A = -2x³ + 12x² + 31x + 8

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.<br> Put f(x) = x2 + 3 in y2.
saveliy_v [14]

Answer:

(X2+3)2

Step-by-step explanation:

First, you have to substitute in what f(x) equals for y since f(x) stands for y.

By doing this, the equation turns into (x2+3)2, because x2+3 is y, and 2 because the original equation way y2.

After you substitute, the answer is (x2+3)2.

5 0
2 years ago
Find two consecutive even integers such that 3 times the smaller integer is 16 more than twice the larger
Verdich [7]

n, n + 2 - two consecutive even integers

3n = 2(n + 2) + 16     |use distributive property

3n = (2)(n) + (2)(2) + 16

3n = 2n + 4 + 16

3n = 2n + 20     |subtract 2n from both sides

n = 20

n + 2 = 20 + 2 = 22

Answer: 20, 22.

4 0
3 years ago
One again i really am bad at these
Ivenika [448]
It’s 39 yards squared because the rectangle is 24+15 which is the triangle
6 0
3 years ago
A scarf is a triangle with two perpendicular sides that are the same length. Which two terms describe the triangular scarf? A. i
timurjin [86]

Answer:

A triangular scarf is an isosceles right triangle.

Step-by-step explanation:

Given: A scarf is a triangle with two perpendicular sides that are the same length.

We have to name which two terms describe a triangular scarf.

Isosceles triangle is a triangle with length of two of its sides equal.

Right angled triangle is a triangle in which one angle is a right angle.

Given :

The two sides of scarf are perpendicular to each other.

Thus, the angle formed between them is 90°. Hence, right angled triangle.

Also, length of two sides are same, Hence isosceles triangle.

Thus,a triangular scarf is an isosceles right triangle.

6 0
3 years ago
Bare root plum trees are on sale at 3 for $40 to the nearest Dollar what is the cost per tree
tankabanditka [31]
3:40
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it would be 13.3 repeated but since you round to the nearest dollar it would be 13. All I did was divide 40 by 3.
3 0
3 years ago
Read 2 more answers
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