1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pashok25 [27]
3 years ago
7

A rectangle has a length of x and a width that is 8 units shorter than twice the length.

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
6 0

Step-by-step explanation:

length = x

width = 2x-8

b.) to get the area you need to multiply the length and the width.

l×w= area

x(2x-8)

2x^2-8x

c.) 2x^2-8x = 10

subtract 10 both sides

2x^2-8x-10 = 0

2(x^2-4x-5) = 0

2(x-5)(x+1) = 0

x = 5

the area would be 10.

You might be interested in
Luke’s that seven pieces of wood on top of one another if each piece was 4/8 of a foot tall how tall was his pile
Ludmilka [50]

Answer:

6 1/2 feet or 78 inches tall

Step-by-step explanation:

You have to multiply 4/8 by 7/1

First you multiply the nominators: 4 × 7 = 28

Then you multiply the denominators: 8 × 1 = 8

So the fraction would be 28/8 and it simplifies to 7/2

You can turn it into an improper fraction by seeing how many times 2 will go into seven evenly, which would be 6 times with 1 half left over

Therefore it would be 6 1/2 feet or 78 inches tall

8 0
3 years ago
Geometry: fill in the blanks (ASAP!! It’s urgent)
stepladder [879]

5. m∠C = 95°

6. m∠C = 70°

7. The other acute angle in the right triangle = 70°

8. m∠C = 70°

9. m∠C = 60° [equilateral triangle]

10. Measure of the exterior angle at ∠C = 110°

11. m∠B = 70°

12. m∠Z = 70°

<h3>What are Triangles?</h3>

A triangle is a 3-sided polygon with three sides and three angles. The sum of all its interior angles is 180 degrees. Some special triangles are:

  • Isosceles triangle: has 2 equal base angles.
  • Equilateral triangle: has three equal angles, each measuring 60 degrees.
  • Right Triangle: Has one of its angles as 90 degrees, while the other two are acute angles.

5. m∠C = 180 - 50 - 35 [triangle sum theorem]

m∠C = 95°

6. m∠C = 180 - 25 - 85 [triangle sum theorem]

m∠C = 70°

7. The other acute angle in the right triangle = 180 - 90 - 25 [triangle sum theorem]

The other acute angle = 70°

8.  m∠C = 180 - 55 - 55 [isosceles triangle]

m∠C = 70°

9. m∠C = 60° [equilateral triangle]

10. Measure of the exterior angle at ∠C = 50 + 60

Measure of the exterior angle at ∠C = 110°

11. m∠B = 115 - 45

m∠B = 70°

12. m∠Z = 180 - 35 - 75

m∠Z = 70°

Learn more about triangles on:

brainly.com/question/25215131

#SPJ1

8 0
2 years ago
Evaluate f(x)=2x-5 for x=3
Fiesta28 [93]
F(x)=2(3)-5
f(x)=6-5
f(x)=1
3 0
3 years ago
Which one is linear
Daniel [21]
A because linear means straight line
5 0
3 years ago
Read 2 more answers
Y=+/-√bx+c+d Use the inverse of the function y= x2 -18x to find the unknown values.<br>​
ozzi

Answer:

a=1

b=81

c=9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Similar figures always have .....?
    15·2 answers
  • James and his friends ordered (b) hamburgers that cost $4 each and (f) fruit cups that cost $3 each. What is an algebraic expres
    12·2 answers
  • Solve by factoring.. m^2 + 8m + 7 = 0
    12·1 answer
  • Earl has 4 more dimes than quarters. if earl has 10 quarters, how many dimes does he have?
    12·2 answers
  • Somebody help it’s a test I don’t wanna fail sad face
    9·1 answer
  • Is 1/9+1/8 closer to 0.5 or 1/2? explain.
    6·1 answer
  • Find a possible solution to the equation cos(x+2) = sin(3x)
    10·2 answers
  • Find the greatest common factor of 6 and 35
    11·2 answers
  • What number is if we round 2.99 to the tenths and if we round 2.999 to the hundredths
    8·1 answer
  • 1. Vanessa and Renita are having a friendly competition at work. Their job is to unpack boxes. Vanessa has unpacked 3 fewer than
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!