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
Veseljchak [2.6K]
3 years ago
7

A square has sides with lengths of (x - 2) units. A rectangle has a length of x units and a width of

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
3 0

Answer:

(A)The area of the square is greater than the area of the rectangle.

(C)The value of x must be greater than 4

(E)The area of the rectangle is (x^2-4x) \:Square \:Units

Step-by-step explanation:

The Square has side lengths of (x - 2) units.

Area of the Square

(x-2)^2=(x-2)(x-2)=x^2-2x-2x+4\\=(x^2-4x+4) \:Square \:Units

The rectangle has a length of x units and a width of  (x - 4) units.

Area of the Rectangle =x(x-4)=(x^2-4x) \:Square \:Units

<u>The following statements are true:</u>

(A)The area of the square is greater than the area of the rectangle.

This is because the area of the square is an addition of 4 to the area of the rectangle.

(C)The value of x must be greater than 4

If x is less than or equal to 4, the area of the rectangle will be negative or zero.

(E)The area of the rectangle is (x^2-4x) \:Square \:Units

You might be interested in
9 mi <br> 12 mi <br> What is the length of the hypotenuse? <br> miles
Svetllana [295]
15..........................
4 0
3 years ago
Tyler went to the grocery store and purchased cans of soup and frozen dinners. Each can of soup has 300 mg of sodium and each fr
Katena32 [7]

Answer:

<u>Tyler purchased 10 cans of soup and 5 frozen dinners.</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Amount of sodium per can of soup = 300 mg

Amount of sodium per frozen dinner = 550 mg

They all collectively contain 5,750 mg of sodium

Tyler purchased twice as many cans of soup as frozen dinners

2. Determine the number of cans of soup purchased and the number of frozen dinners purchased.

Let s to represent the number of cans of soup Tyler purchased

Let d to represent the number of frozen dinners Tyler purchased

Let's write our equation of systems:

s = 2d (1st equation)

300s + 550d = 5,750 (2nd equation)

************************************************

Substituting s and solving for d in the 2nd equation:

300s + 550d = 5,750

300 * 2d + 550d = 5,750

600d + 550d = 5,750

1,150d = 5,750

d = 5,750/1,150

<u>d = 5 ⇒ s = 2 * 5 = 10</u>

<u>Tyler purchased 10 cans of soup and 5 frozen dinners.</u>

Let's prove d = 5 and s = 10 are correct:

300 * 10 + 550 * 5 = 5,750

3,000 + 2,750 = 5,750

5,750 = 5,750

<u>We proved d = 5 and s = 10 are correct</u>

3 0
4 years ago
What is the solution to the equation -4 (2x + 3) = 2x + 6 - (8x + 2)
jeka94

Answer:

x= -8 i believe

Step-by-step explanation:

4 0
3 years ago
Jason is playing a trivia game with his friends. At the end of each round, his score updates to the square of 1 less than the pr
mezya [45]

Answer:

8+n^2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
(a) The position of a particle at time t is s(t) = t^3 + t. Compute the average velocity over the time interval [7, 12].(b) Esti
ryzh [129]

Answer:

<h2>a) Average velocity = 278 units</h2><h2>b) Instantaneous velocity at t = 7 seconds is 148 units</h2>

Step-by-step explanation:

a) Average velocity is the ratio of displacement to time.

   We have

              s(t) = t³ + t

    t is in between 7 and 12

             s(7) =  7³ + 7 = 350

              s(12) = 12³ + 12 = 1740

    Displacement = 1740 - 350 = 1390

   Time = 12 - 7 = 5

  Displacement =  Average velocity x time

  1390 = Average velocity x 5

  Average velocity = 278 units

b) s(t) = t³ + t

   Differentiating

         v(t) = 3t² + 1

  At t = 7

          v(t) = 3 x 7² + 1 = 148 units

  Instantaneous velocity at t = 7 seconds is 148 units

8 0
3 years ago
Other questions:
  • What is the deference bet.<br> (3+4)x7<br> 3+4x7
    9·2 answers
  • The first side of a triangle is twice the length of the second side; the third side is 20 feet less than three times the second
    7·1 answer
  • If CD is a bisector of 4ACB, then what is FALSE?
    12·2 answers
  • This diagram is not drawn to scale. Based on the information in the diagram, which of the following statements are true? Select
    7·1 answer
  • Ethan's mom tried a new bean soup recipe. She used 2 cups of black beans and 5 cups of kidney beans. The family loved it, so she
    8·1 answer
  • Use the properties of equality to solve the equation 3x+2-x=11x+9. State which property justifies your first step and why you ch
    15·1 answer
  • Find the median for this list of data. 85,84,82,88,64,90,85,78​
    5·2 answers
  • Please can you help?
    9·2 answers
  • If you draw a right triangle inside a sphere, which statement about the legs of the right triangle is TRUE?
    5·2 answers
  • Find the solutions to x² = 20.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!