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
shusha [124]
3 years ago
5

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

Mathematics
2 answers:
JulijaS [17]3 years ago
6 0
Given:
Rectangle shape.
One side: 5x + 2
other side: x - 4

Area = length * width
Area = (5x+2)(x-4)
A = 5x(x-4) +2(x-4)
A = 5x² - 20x + 2x - 8
A = 5x² - 18x - 8
Sophie [7]3 years ago
6 0

Answer:

its ........................................................C

Step-by-step explanation:

You might be interested in
Help me with number 3 please
Harlamova29_29 [7]
The answer would be 22%
6 0
2 years ago
What is the slope for the equation: y = - 4x + 5?
Iteru [2.4K]

Answer:

m = − 4

Step-by-step explanation:

i got this correct

8 0
3 years ago
box with a square base and open top must have a volume of 4,000 cm3. Find the dimensions of the box (in cm) that minimize the am
Naya [18.7K]

Answer:

Hence the width, length is 20 cm and height is 10 cm

Step-by-step explanation:

Since the box has a square base, let length = width = x. Also, let the height = y, therefore:

The volume of box = width * length * height

4000 = x * x * y

4000 = x²y

y=4000/x²

The surface area (SA) = area of the base + sum of the area of each side

SA = x² + xy + xy + xy + xy

SA = x² + 4xy

substitute y = 4000/x²

SA = x² + 4x(4000/x²)

SA = x² + 16000/x

Taking the derivative:

SA' = 2x - 16000/x²

making SA' = 0:

0 = 2x - 16000/x²

2x = 16000/x²

2x³ = 16000

x³ = 8000

x = 20 cm

y = 4000 / x² = 4000 / 20² = 10 cm

Hence the width, length is 20 cm and height is 10 cm

6 0
3 years ago
A bicycle store costs ​$2250 per month to operate. The store pays an average of ​$40 per bike. The average selling price of each
lesantik [10]

Answer:

75

Step-by-step explanation:

Given That :

Operation cost = $2250 per month

Purchase price per bike = $40

Average selling price per bike = $70

How many bicycles must the store sell each month to break even ;

Break even point = point at which there is net profit / loss = 0

Let number of bicycles store must sell = x

Operation cost + (purchase price * Number of bicycles) = selling price * Number of bicycles

2250 + 40x = 70x

2250 = 70x - 40x

2250 = 30x

x = 2250 / 30

x = 75

To break even 75 bicycles must be sold

5 0
3 years ago
Help brainliest for correct answer
Ksju [112]

Answer:

nooooooooo

Step-by-step explanation:

mark me brainlist

5 0
3 years ago
Other questions:
  • The car is moving with a speed v0 = 48 mi/hr up the 4-percent grade, and the driver applies the brakes at point A, causing all w
    8·1 answer
  • Which steps could be used to solve this story problem? The zoo has 20 birds in the enclosure. Twelve of the birds are blue, 3 ar
    5·2 answers
  • True or False? If a circle is circumscribed about a parallelogram, the
    9·1 answer
  • Solve A= P+Prt for r. Assume all variables represent positive values.
    7·1 answer
  • Tommy paid $39 to fill up the gas tank in his car. if one gallon of gas costs $3, how many gallons of gas did tommy put in?
    11·2 answers
  • Can anyone please help i have no one to help me​
    14·1 answer
  • I need help someone help
    9·2 answers
  • 3. An expandable cone-shaped funnel consists of two sections as shown. (a) What is the volume of the bottom section? (b) What is
    7·1 answer
  • (x+4)^2 - (x-6)^2 - (x-1)*(x+1)
    8·1 answer
  • What is the perimeter of a square who’s sides are ten units long?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!