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
erik [133]
3 years ago
14

Find (-2) for (x) = 5•3*.

Mathematics
2 answers:
Tomtit [17]3 years ago
8 0

Answer:

f(-2) = 5/9

Step-by-step explanation:

* lets explain the problem

∵ f(x) = 5(3)^x

- It is an exponential function

- (3) is the base of the function

- x is the exponent

- To find f(-2) means substitute x by -2

∵ f(x)=5(3)^{x}

∵ x = -2

∴ f(-2)=5(3)^{-2}

- If the power of the base is negative we can change its sign to

  positive by reciprocal the base

# Ex: (a)^{-n}=(\frac{1}{a})^{n}

- Lets do that withe the base 3 and power -2

∵ (3)^{-2}=(\frac{1}{3})^{2}

∴ f(-2)=5(\frac{1}{3})^{2}=5(\frac{1}{9})=\frac{5}{9}

* f(-2) = 5/9

MAVERICK [17]3 years ago
5 0

Answer:

5/9

Step-by-step explanation:

F(-2)for f(x)=5•3^x

Let x = -2

f(-2)=5•3^(-2)

      = 5 * 1/3^2

     = 5 * 1/9

     = 5/9

You might be interested in
Type the correct answer in each box use numerals instead of words consider the quadratic equation
irinina [24]
Where are the boxes we’re looking at??
7 0
4 years ago
Suppose that pollution in a neighborhood comes from two factories, with marginal benefit curves given by MB1 = 12 – P1 and MB2 =
makkiz [27]
The two factors are 2 and p=10 so I used your equations and
5 0
3 years ago
Help Please !!!(-.-;)y-~~~
densk [106]

Answer:

For employee 1 = 2.5

For employee 2 = 8.6

For employee 3 = 4.4

For employee 4 = 10

For employee 5 = 24

Step-by-step explanation:

number of hour worked= H

total money earned =T

earning per hour =M

we have the following relations:

H =T/M

M =T/H

For employee 1 we have:

T=23.75$

M =9.50$

We calculate H by using the above equations, so we have:

H =23.75/9.50= 2.5

For employee 2 we have:

T=28.38 $

H =3.3

We calculate M by using the above equations, so we have:

M =28.38/3.3 =8.6

For employee 3 we have:

T=38.50$

M =8.75$

We calculate H by using the above equations, so we have:

H =38.50/8.75= 4.4

For employee 4 we have:

T=55 $

H =5.5

We calculate M by using the above equations, so we have:

M =55/5.5=10

For employee 5 we have:

T =60 $

H =2.5

We calculate M by using the above equations, so we have:

M =60/2.5 = 24

4 0
4 years ago
A manufacturing plant earned \$80$80dollar sign, 80 per man-hour of labor when it opened. Each year, the plant earns an addition
Ksju [112]

Answer:

80(1+0.06)(1+0.06)(1+0.06)

4 0
2 years ago
Create a pattern with the Rule n x 3 + 1
ryzh [129]
1, 4, 13, 40, 121, 364, 1,093, 3,280, 9,841, 29,524, 88,573.
Hoped this helped :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • The slope of the line below is 0.5. Write the equation of the line in point-slope form, using the coordinates of the labeled poi
    6·1 answer
  • 40 POINTS + BRAINLIEST!
    13·2 answers
  • Please help!!
    10·1 answer
  • What is this problem
    8·2 answers
  • Use the quotient of powers property to simplify the numeric expression.
    14·1 answer
  • Kara works at a fine jewelry store and earns commission on her total sales for the week. Her weekly paycheck was in the amount o
    7·1 answer
  • Help help help math math
    12·1 answer
  • What is the y-coordinate of the solution to the system of equations?
    11·1 answer
  • The prime factors of 52 in order from least to greatest are???
    13·1 answer
  • Michael has 26 shirts to fold. Let N be the number of shirts he would have left to fold after folding F them. Write an equation
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!