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
Anon25 [30]
2 years ago
12

3" alt="f(x) = {2}^{x} + 3" align="absmiddle" class="latex-formula">
What is the value of f(-2)​
Mathematics
1 answer:
lisov135 [29]2 years ago
4 0

The function is given f(x)=2^x+3.

Now let's solve for f(-2).

f(-2)=2^{-2}+3

Rule of negative exponent: x^{-1}=\frac{1}{x^1}.

f(-2)=\frac{1}{2^2}+3

f(-2)=\frac{1}{4}+\frac{3}{1}

Rule for sum of fractions: \frac{a}{b}+\frac{c}{d}=\frac{ad+bc}{bd}.

f(-2)=\frac{13}{4}

And the result is:

f(-2)=\boxed{\frac{13}{4}=3.25}

You might be interested in
Which value is equivalent to ( 7 • 5 • 2 over 7 • 3) ^2 • ( 5^0 over 2^-3) ^3 • 2^-9
ser-zykov [4K]
100 / 9

They both equal 11.11
(70/21)^2 * 8^3 * (1/2^9)
3 0
3 years ago
A study of 250 households in Cedar Bluff showed that a household produced an average of 4 pounds of garbage per day. What is the
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

Given that a study of 250 households in Cedar Bluff showed that a household produced an average of 4 pounds of garbage per day.

Here a study of only 250 were made to assess about the entire households in Cedar Bluff

Hence the population of interest in this study is the entire households in Cedar Bluff.

The sample is the 250 households in Cedar Bluff which were studied

The objective was to study the sample and from that information to assess about the population.

6 0
3 years ago
Sofia has 112 muffins to place into equal packages of 8. The packages will sell for $5 each. What is the total value of the comp
guapka [62]
To get the answer, first, you must find the amount in each box, so you must divide, 122 divided by 8, you should get 15.25, but that's not your answer. The question asks how many COMPLETE boxes, so just choose the whole number, which is 15. 15 is the answer.
8 0
3 years ago
Read 2 more answers
Ten times the sum of half a number and 6 is 8
Gelneren [198K]
10(1/2x + 6) = 8
5x + 60 = 8
5x = 8 - 60
5x = - 52
x = -52/5
5 0
3 years ago
Read 2 more answers
On the moon, a bag of sugar has a weight of 3.7 Newtons (N) and a mass of 2.26 kilograms (kg). Which of the following describes
ludmilkaskok [199]

Answer:

c

Step-by-step explanation:

mass will never change only weight will as weight is dependent on gravitational field strength

8 0
2 years ago
Other questions:
  • The probability that a professional baseball player will get a hit is 1/3. Calculate the exact probability that he will get at l
    10·1 answer
  • Which function is increasing?
    12·1 answer
  • The food pantry distributes 10-oz bags of rice. If three 5-lb bags are donated to the pantry,how many 10-ounce bags can be made
    6·1 answer
  • Using the graphing function on your calculator, find the solution to the system
    13·2 answers
  • Attachment mathswatch!!!!! Please write answer only thank you!!!!!!!!
    7·1 answer
  • the number 1 through 10 are written on individual cards and placed in a bag. if you reach into the bag and pull out a card, what
    14·1 answer
  • Gold used to make jewerly is often a blend of​ gold, silver, and copper. Consider three alloys of these metals. The first alloy
    15·1 answer
  • Help PLS i put you in brainlist
    8·2 answers
  • The car vacuum cleaner at a gas station near Gina’s house costs $0.25 a minute to operate. Gina has $3.25 to spend on vacuuming
    6·2 answers
  • Solve for n:<br> (n+4)/10 = (n-8)/2
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!