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
Vesnalui [34]
3 years ago
8

Which function models the area of a rectangle with side lengths of 2x – 4 units and x + 1 units? What is the area when x = 3?

Mathematics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

D. f(x) = 2x^2 − 2x − 4; A = 8

Step-by-step explanation:

The area of a rectangle is given by the formula length x wide.

In this case we have that the length is 2x -4 and the wide is x +1

Therefore, the area will be:

A= (2x-4)(x+1)= 2x^2+2x-4x-4=2x^2-2x-4\\A= 2x^2-2x-4

Now, when x = 3 we would have:

A=2(3)^2-2(3)-4= 2(9)-6-4=18-10=8\\A=8

Thus, the right answer is D.

You might be interested in
How do I solve 3a=57
MatroZZZ [7]
Divide 3 from both sides to get a=57/3 then a=19
6 0
3 years ago
Read 2 more answers
Is 7(w)=(7×2)w commutative property or associative property?
Umnica [9.8K]
I don't think those two expressions would even be equal unless w = 0. You can't just add in a 2 from nowhere.
6 0
2 years ago
Read 2 more answers
Translate this sentence into an equation. 59 is the sum of 11 and Mai’s score
trapecia [35]

Answer:

11 + Mai's Score = 59

Step-by-step explanation:

You need to add 11 and Mai's score together to get 59, so with the values given we can make the equation 11 + Mai's Score = 59.

*depending on the question, Mai's score may need to be said as a letter variable, so:

If m = mai's score,

11 + m = 59

I hope this helped! :)

3 0
3 years ago
Read 2 more answers
Review the graph. What is the component form and direction of the vector shown
Charra [1.4K]

Answer:

<-7,3> and 157 degrees

got it right :) hope this helped

4 0
3 years ago
Read 2 more answers
Mr. Clark traveled 456.4 km in 14 days.
xeze [42]

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

<h3><u>Distance travelled each day is</u> : </h3>

  • 32.6 km

<h3><u>Explanation</u> : </h3>

Distance travelled in 14 days is : 456.4 km

And if he travels same Distance each day, so let the Distance travelled on each day be x

According to question ~

\qquad \sf  \dashrightarrow \: 14 \times x = 456.4

\qquad \sf  \dashrightarrow \: x = 456.4 \div 14

\qquad \sf  \dashrightarrow x = \: 32.6  \: \: km

So, he travels 32.6 km per day

5 0
2 years ago
Other questions:
  • Write (1/6) to the 3rd power as a product of the same factor.then find the value
    12·1 answer
  • (b) we often read that iq scores for large populations are centered at 100. what percent of these 78 students have scores above
    15·1 answer
  • What are the sine cosine and tangent of theta=7pi/4 radians
    7·2 answers
  • F(x) equal to f-1(x)?
    5·1 answer
  • I NEED THIS ANSWER ASAP PLEASE!!
    15·1 answer
  • The pier is 200 meters long. Each board is 80 centimeters wide.
    10·1 answer
  • Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32 2/3 hours during the summer. What equation c
    14·1 answer
  • Can anyone help me with this equation please?
    9·2 answers
  • 7/11 converted to a decimal rounded up 2 places
    8·2 answers
  • Rewrite in simplest form 6(-9u+2u+4)-6u
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!