possumsonmeth69 possumsonmeth69
  • 13-05-2022
  • Mathematics
contestada

the dimensions of a rectangle can be represented by the expressions (x+7) and (x-3). if the area of the rectangle is 75 square feet, find the value of x.

Respuesta :

Markoxmara
Markoxmara Markoxmara
  • 13-05-2022

Answer:

Step-by-step explanation:

Area of rectangle is  b*h

so

a = (x-3)(x+7)

75 = (x-3)(x+7)

75 = x²+4x-21

0 = x²+4x-96

(x+12)(x-8)=0

x = -12, or x = 8

Answer Link

Otras preguntas

Which of the following passages includes a sensory detail for sight? At last, when the ship we were in, had got in all her cargo, they made ready with many fe
Shana ran 6miles in 1 week. this is one third of what she ran in the month. let m represent the number of miles shana ran in a lonth. select the correct values
What is the difference between a single gene disorder, multifactorial disorder and a chromosomal abnormality?
Anne has a sample of a substance. Its volume is 20 cm3, and its mass is 100 grams. What is the sample’s density?
Who was in bagel heights battle?
How do i do this or what's the answer (there is a picture btw)
6 fl oz= how many cups
What's the main difference between a metaphor and a simile? a. a simile is an implied comparison and a metaphor is a direct one. b. a simile is a type of figu
How do you say this in Korean? "You're still at school?!!!"
Solve for X. This is basically angles of a triangle.