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
NISA [10]
3 years ago
8

If f(x) = 7x2 - 4x, what is the value of f(2)? F -8 J 17 G 2 K 20 H 6

Mathematics
1 answer:
kow [346]3 years ago
4 0

Answer:

K 20

Step-by-step explanation:

f(x) = 7x2 - 4x

f (2) = 7 (2)^2 - 4(2)

= 28 - 8

= 20

Since they replaced the x inside f(x) with 2, just do that the same to the right side, change all x into 2

You might be interested in
Simpl following 12mn+4m²n-3mn+2m²n​
almond37 [142]

Answer:

9m+6m^2n

Step-by-step explanation:

12mn-3mn=9mn

4m^2n+2m^2n=6m^2n

==> 9m+6m^2n

or rewrite as 3m(3+2mn)

5 0
3 years ago
Read 2 more answers
(6-7)[4-6]^2+2(-4)-2]
horsena [70]
This answer would be (-14).

6 0
2 years ago
(Hurry fast I don’t have a lot of time pls) Tatiana wrote the steps that are commonly used to solve a system of equations with t
igor_vitrenko [27]

Answer:

1. Multiply the value of the first variable by one of the original equations to solve for the second variable.

2. Solve for one of the variables.

3. Substitute the value of the known variable into one of the original equations to solve for the unknown variable.

Step-by-step explanation:

3 0
3 years ago
Pls help...mhdusbdhsj​
Karo-lina-s [1.5K]

Answer:

270

Step-by-step explanation:

-6 multiply 5 gives you -30

-3 multiply -3 gives you -9

-30 multiply 9 gives you

-270

4 0
2 years ago
A circle has a radius of 6. An arc in this circle has a central angle of 330
sashaice [31]

Answer: Arc\ lenght\approx34.55\ units

Step-by-step explanation:

<h3> The complete exercise is: " A circle has a radius of 6. An arc in this circle has a central angle of 330 degrees. What is the arc length?"</h3><h3></h3>

To solve this exercise you need to use the following formula to find the Arc lenght:

Arc\ lenght=2\pi r(\frac{C}{360})

Where "C" is the central angle of the arc (in degrees) and "r" is the radius.

In this case, after analize the information given in the exercise, you can identify that the radius and the central angle in degrees, are:

r=6\ units\\\\C=330

Therefore, knowing these values, you can substitute them into the formula:

Arc\ lenght=2\pi (6\ units)(\frac{330}{360})

And finally,you must evaluate in order to find the Arc lenght.

You get that this is:

Arc\ lenght=2\pi (6\ units)(\frac{11}{12})\\\\Arc\ lenght=11\pi \ units\\\\Arc\ lenght\approx34.55\ units

3 0
2 years ago
Read 2 more answers
Other questions:
  • Central Subs made 27 sandwiches using 12 pound of turkey. How much turkey was used per sandwich
    13·1 answer
  • Is this the right answer
    11·2 answers
  • What is the value of X? (8y+12) (7x+4)​
    9·1 answer
  • without any natural predators rabbits can grow at a rate of 25% each year, if 6 rabbits were introduced into an area how many ra
    6·1 answer
  • Find the quotient. I need help I am not very good with fractions sorry.
    11·2 answers
  • How many 1/4 unit cubes that to fill a prisim
    15·1 answer
  • Which is –3.2 written in the form a/b?<br><br> A. -32/100<br> B. -5/16<br> C. -3/2<br> D. -16/5
    11·1 answer
  • Fill in the five blanks on the function table​
    10·1 answer
  • Help please I don’t get it &amp; I’m terrible at math.
    5·2 answers
  • Let U = {b, f, h, k, p, s, v}
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!