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sergiy2304 [10]

3 years ago

7

If the area of the rectangle shown is 150 square feet, we can use the equation 2x2 - 5x = 150 to find its dimensions. If the sol

ution to the equation is x = 10, what are the dimensions of the rectangle? A) 2 ft x 75 ft B) 5 ft x 30 ft C) 10 ft x 15 ft D) 15 ft x 20 ft

1 answer:

laiz [17]3 years ago

4 0

What does the 2x2 mean?

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PLEASE HELP EASY MATH!! NO LINKS! NEED FULL EXPLANATION!! (WILL GIVE BRAINLYIST!)

LenaWriter [7]

Answer:

Step-by-step explanation:

A

2x3 is 6x4 is 24+5 is 29

B

6+20 is 26

C

9x5 is 45

D

6+8 is 14x5 is 70

SO THIS MEANS THAT B IS YOUR ANSWER

4 0

3 years ago

What is the reciprocal of 1/x^3

Gennadij [26K]

Answer:

x^3

Step-by-step explanation:

reciprocal is 1/(given value)

1/(1/x^3)

=x^3

4 0

3 years ago

This is so confusing all of it makes no sense

Tom [10]

Answer:

D). $4\sqrt{2}$

Step-by-step explanation:

<u>STEP 1a:</u> Find the last angle of the triangle. ( which is angle A)

$A+90+45=180$

<u>STEP 1b:</u> Solve the equation for A by adding 90 and 45.

$A+135=180$

<u>STEP 1c:</u> Then Move all terms not containing A to the right side of the equation by subtracting 135 from both sides of the equation

$A=180-135$

<u>STEP 1d:</u> Subtract 135 from 180.

$A=45$

STEP 2a: Find side b next.

STEP 2b: The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

$cos(A)=\frac{adj}{hyp}$

STEP 2c: Substitute the name of each side into the definition of the cosine function.

$cos(A)=\frac{b}{c}$

STEP 2d: Set up the equation to solve for the adjacent side, in this case b.

$b=c*cos(A)$

STEP 2e: Substitute the values of each variable into the formula for cosine.

$b=8*cos(45)$

STEP 2f: Cancel the common factor of 2.

$a=4\sqrt{2}$

HOPE THIS HELPS!

4 0

2 years ago

Read 2 more answers

Which factorizations can be used to identify the real zeros of the function f(x)=20x^2+23x-6

Ainat [17]

It’s the quadratic formula because it’s give directly the zeros of a function

5 0

3 years ago

I NEED HELP WITH THIS <br> Q1

levacccp [35]

Answer:

$\frac{1}{4} (x-5)=13$

Step-by-step explanation:

So when we multiply this is what we get:

$\frac{x-5}{4}=13$

then we multiply the 4 by 13:

$x-5=52$

then after that we add 52+5 and we get:

$x=57\\$

4 0

2 years ago

Read 2 more answers