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
Dmitry_Shevchenko [17]
3 years ago
13

Find f(-2) for f(x) = 2(4)x . will give brainliest for correct answer ​

Mathematics
1 answer:
Serhud [2]3 years ago
8 0

Answer:

D

Step-by-step explanation:

This questions asks use to find what f(x) or y is, when x is equal to -2.

So, substitute -2 in for x in the equation.

f(x)=2(4)^x

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

Evaluate the exponent. Negative exponents follow this rule:

b^-x= 1/b^x

We have 4^-2. This will become 1/4^2 or 1/16

f(-2)=2(1/16)

Multiply

f(-2)=2/16

This fraction can be simplified. Both the numerator (top number) and denominator (bottom number) can be divided by 2.

f(-2)=2/2 / 16/2

f(-2)= 1/8

The correct choice is D. 1/8

You might be interested in
The length of a rectangular field is 75yd. This is 3yd more than twice the width. How wide is the field?
vova2212 [387]

Answer:

36yd

Step-by-step explanation:

width = x

2x - 3 = 75

2x = 78

x = 36yd

width = 36yd

7 0
3 years ago
Read 2 more answers
Carol has had a $145,000 fixed-rate mortgage for 5 years at 6.25% and is
Montano1993 [528]

Answer:

yes; the new blended interest rate is lower than the old blended interest rate

Step-by-step explanation:

6 0
4 years ago
Writing about Translating Phras
trasher [3.6K]

Answer:

Step-by-step explanation:

This can only be written one way.

Let the number = x

x^2 - 10

is how the statement translates.

x^2 = x*x

the 2 means that you need two xs.

The ^ means that you multiply the two xs.

7 0
4 years ago
PLEASE HELP <br> 5|12-r|&gt;15
Novay_Z [31]

Step-by-step explanation:

5.|12 - r| > 15

|12 - r| > 15/5

|12 - r| > 3

12 - r < -3 or 12 - r > 3

-r < -3 - 12 or -r > 3 - 12

-r < -15 or -r > -9

r > 15 or r < 9

4 0
2 years ago
What is the measure of angle D?
exis [7]

Answer:

52

Step-by-step explanation:

the answer is 52 because all the angles have to add up to 360 and 128+126+54=308 and 360-308=52

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which represents the solution of the graphed system of equations,y=x2+x-2and y=2x-2
    10·1 answer
  • For several months, a restaurant collects data on the number of people at a table (p) and the total bill, in dollars (d). They f
    9·1 answer
  • 10 = 2 - 4(ax - 3) solve the following equation for x
    12·2 answers
  • Martin made two type of cookies.He used 2/3 cup of sugar for one recipe and 1/4 cup for the other one. How much sugar did he use
    7·2 answers
  • A triangular prism has a triangular face with a base of 7 millimeters and a height of 4.6
    10·1 answer
  • Which expression is equivalent 6+7n+4+8n?
    13·1 answer
  • What is 2% of 52? Please help quick
    14·2 answers
  • Which object has volume?
    7·1 answer
  • A bakery has 312 bagels left at the end of the day. The owners would like to divide them evenly to donate to 3 nearby food banks
    12·1 answer
  • If a barrel averages 50 pounds and a crate 160 ​pounds, write an inequality that describes when x barrels and y crates will caus
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!