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
slavikrds [6]
2 years ago
6

If f(x) = 8x2 + 4x - 12. Find f(2) f(2)=

Mathematics
1 answer:
posledela2 years ago
3 0

Answer:

f(2) = 28

Step-by-step explanation:

\rm f(x) = 8 {x}^{2}  + 4x - 12

\rm Evaluate \:  8 x^2 + 4 x - 12 \:  where  \: x = 2: \\  \\  \rm \implies f(2) = 8 \times {2}^{2}  + 4 \times 2 - 12 \\  \\   \rm \implies f(2) = 8 \times 4 + 8 - 12 \\  \\   \rm \implies f(2) = 32 - 4 \\  \\   \rm \implies f(2) = 28

You might be interested in
Please help me with this!
mafiozo [28]
A (-5, 6)
B (-5, 2)
C (-9, 2)
D (-9, 6)

As it is just a rotation around the origin by 180, you can just change the sign in front of the numbers :)
4 0
3 years ago
A credit card customer owes $325.60 they charge another purchase of $45.20. how much money does the customer owe?
Burka [1]
$367.80 because you have to add up the purchase the owe and the other one too, then you get your answer
8 0
3 years ago
Read 2 more answers
Simplify the expression. Quantity cosecant of x to the power of two times secant of x to the power of two divided by quantity se
Art [367]

Answer:

D. 1

Step-by-step explanation:

We have the expression, \frac{\csc^{2}x\sec^{2}x}{\sec^{2}x+\csc^{2}x}

We get, eliminating the cosecant function,

\frac{\sec^{2}x}{\frac{\sec^{2}x}{\csc^{2}x}+1}

As, sinx is reciprocal of cosecx and cosx is reciprocal of secx,

i.e. \frac{\sec^{2}x}{\frac{\sin^{2}x}{\cos^{2}x}+1}

i.e. \frac{1}{\cos^{2}x}\times \frac{\cos^{2}x}{\sin^{2}x+\cos^{2}x}

Since, we know that, \sin^{2}x+\cos^{2}x=1

Thus,

\frac{1}{\cos^{2}x}\times \frac{\cos^{2}x}{\sin^{2}x+\cos^{2}x}=1

So, after simplifying, we get that the result is 1.

Hence, option D is correct.

3 0
2 years ago
Given ABC = DEF and the perimeter of DEF =38, find BC
ddd [48]

Answer: BC = 15

Step-by-step explanation:

Since the triangles are congruent, that means they are the same. So side AB = side EF. Since we know side FD is 15, that means side BC= 15

7 0
3 years ago
18/25 equals 126/?<br><br>Help, my dudes!<br><br>What does that question mark represent?
kap26 [50]

Answer:

the "?" represents the number 175

Step-by-step explanation:

126/18=7

so, you would multiply the 25 by 7 to get 175

hope this helps!

4 0
3 years ago
Other questions:
  • The Fosters bought a car in 2003 for $38,799. In 2012 they decided they wanted to sell the car. If the value of the car is decre
    15·1 answer
  • Write an expression for the situation
    11·1 answer
  • How to do quadratic formula
    8·1 answer
  • I need help finding the x
    5·1 answer
  • 29. The table below shows some of the values of and for a linear function.
    7·2 answers
  • The Venn diagram shows the results of two events resulting from rolling a number cube.
    10·1 answer
  • Which direction would the graph of y=3|x|-8 open
    11·2 answers
  • What is the primed factored root for 12
    10·1 answer
  • Which of the following are exterior angles? check all that apply
    14·1 answer
  • The universal set is the set that contains no elements.<br> True<br> False
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!