Write an equation for the area of a rectangle that is three times as long as it is wide. Use only one variable.PLEASE HELP, II NEED TODAY!!!

Answers

Answer 1

Answer: area = x × (3x)

x = how wide the rectangle is

Answer 2

Answer: Simple,

L=3W

The length is 3 times its width.

Have a great day! :D

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One of the last questions for today and for 20 points!

The legs of an isosceles right triangle are 5 inches long. What is the length of the hypotenuse of the triangle to the nearest inch?

Answers

The legs are 5 inches long.

Use the Pythagorean theorem:
$5^2+5^2=c^2 \n25+25=c^2 \n50=c^2 \nc=√(50) \nc=√(25 * 2) \nc=5 √(2) \nc \approx 7$

The length of the hypotenuse of the triangle is approximately 7 inches long.

$a^(2) + b^(2) = c^(2) \n 5^(2) + 5^(2) = c^(2) \n 25 + 25 = c^(2) \n 50= c^(2) \n √(50)= c \n c=7.07$
$c$ ≈ $7$

The hypotenuse is about 7 inches long.

Let f(x) = -2x + 7 and g(x) = -6x + 3. Find (f o g) and state its domain.

Answers

$(f\circ g)(x) = -2(-6x+3) + 7 = 12x - 6 + 7 = 12x + 1$

The domain is all real numbers as a composition of two linear functions have no restrictions (all linear functions have domain of R)

Help plz! ASAP
Plz help with the prob below

Answers

Same order as #1 for the rest of the problems.
#1 0.95% - R I=PRT=5000×0.0095×2
2 yrs - T =$95
$5,000 - P
#2 I=PRT
=300×0.0303×7
=$63.63
#3 I=PRT
=10,000×0.0252×10
=$2520
#4 I=PRT
=1×0.0075×15
=$0.1125
#5 I=PRT
=99×0.03×99
=$294.03

Which one of the following statements is it ?

Answers

The correct statement is B

The Statement is B. Hope this helps!

Subtract the following polynominals
3x^2-5x+12
5x^2+x-11

Answers

3x^2-5x+12

-(5x^2+x-11)

--------------------------------------

3x^2-5x+12

-5x^2-x+ 11

--------------------------------------

-2x^2 -6x+23

Simplify a7/a4

A) 1/a3
B)-a/a2
C)a4/a3
D)a3

Answers

Answer: a^3

Step-by-step explanation: Reduce the expression by cancelling the common factors

Hope this helps! :) ~Zane

Answer:

=a3

Step-by-step explanation:

a*a*a*a*a*a*a

a*a*a*a

=a*a*a

=a3

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