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
Semenov [28]
3 years ago
8

What is the correct evaluation of 4x2 - 2x + 5, when x is equal to 2?

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

9

Step-by-step explanation:

  1. Rewrite the problem

4x2-2(2)+5

2. Solve the problem. Do the multiplication first and then the subtraction and addition

8-2(2)+5

8-4+5

4+5

9

The final answer is 9

You might be interested in
12n + 25 = -2n + 55 <br><br> I’ll give brainliest
Mama L [17]

Answer:

n=\frac{15}{7}

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The assembly of a machine takes 3/4 hour there are 12 steps in the assembly process what is the average time for each step
S_A_V [24]
We can solve this two different ways. I'll do both, and you choose which one makes the most sense:
We can divide the fraction 3/4 by 12. remember, when we divide fractions, we flip the second fraction and change the sign to multiplication:
3/4 ÷12     [starting equation]
3/4 x 1/12  [flip and change sign]
3/48    [now reduce]
1/16 Each step takes 1/16 of an hour. 
1/16 x 60 = 3 3/4, or 3.75 minutes

Second way:
3/4 of an hour is 3/4 of 60...45 minutes.
Still, we divide out:
45 ÷ 12   [starting equation]
3 9/12    [divide with remainder]
3 3/4 minutes...3.75 minutes

5 0
3 years ago
What does cross-sectional area mean in math term?
Bingel [31]
The only math term I can think of is geometry and it means when a solid is cut through parallel to the base.
EDIT: After further research since it was all I could think of. This is the only math term for what you are looking for.
3 0
3 years ago
Read 2 more answers
Verda used a sensor to measure the speed of a moving car at different times. At
Kaylis [27]

Answer:

the answer is c because if you divided 4848484 by 37 =234

Step-by-step explanation:

393-=3\3

3 0
3 years ago
On Tuesday morning, the temperature is -5º F. The temperature rises 3 4 degree each hour for 6 hours before dropping 1 4 degree
Mice21 [21]

Answer:

The temperature in degrees after 9 hours is -1.25 degrees Fahrenheit

Step-by-step explanation:

Here, we want to know the temperature after 9 hours

Per hour rise each hour is 3/4 degree = 0.75 degree

In 6 hours that will be 0.75 * 6 = 4.5 degrees

Or hour drop is 1/4 = 0.25 degree

In 3 hours, that will be 0.25 * 3 = 0.75 degree

Since it is a drop, we have -0.75 degree

Temperature after 9 hours will be;

-5 + 4.5 -0.75

= -5.75 + 4.5 = -1.25 degrees fahrenheit

8 0
3 years ago
Other questions:
  • Fill in the table with the rule y = 2x-2
    15·1 answer
  • Roy already has 10,368 frequent flyer miles, and he will earn 2,832 more miles from his round-trip flight to New York City. In a
    10·1 answer
  • Solve the following:<br> a. 4x^2 + 5x + 3 = 2x^2 − 3x<br> b. c^2 − 14 = 5c
    11·1 answer
  • What is a simpler form of the radical expression? sqrt 36g^6 A. 36|g^3| B. 36g^4 C. 6|g^3| D. 6g^4
    11·2 answers
  • What is the error in both of these problem<br><br>expain how you got your answer​
    14·1 answer
  • -12 + (-3) • 3 - 8 = 4​
    14·1 answer
  • Answer two questions about Equations A and B:
    15·1 answer
  • Please Help Giving Brainliest!!!!! (05.06)Which net matches the solid figure shown below? A three-dimensional cube with a height
    10·1 answer
  • What is the answer to the Pattern at 7 and counting by 7
    5·1 answer
  • Please help me with this question!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!