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
vfiekz [6]
3 years ago
15

Let f(x)=7x^2-8. find f(a^2)

Mathematics
1 answer:
strojnjashka [21]3 years ago
6 0

Answer:

\large\boxed{f(a^2)=7a^4-8}

Step-by-step explanation:

f(x)=7x^2-8\\\\f(a^2)\to \text{put}\ x=a^2\ \text{to the equation of the function}\ f:\\\\f(a^2)=7(a^2)^2-8\qquad\text{use}\ (a^n)^m=a^{nm}\\\\f(a^2)=7a^{2\cdot2}-8\\\\f(a^2)=7a^4-8

You might be interested in
Daniel baked 59 cinnamon rolls. He sold 30 to one customer and 2 packages of 6 to another. He gave away to friends. How many wer
Marianna [84]
The answer would be 17 because 59 - 30 = 29 and 29 - 12 =17
6 0
4 years ago
The nut shack sells cashews for $6.00 per pound and Brazil nuts for $5.00 per pound. How much of each type should be used to mak
Kay [80]

Answer:

Number of pounds of cashews = x = 14.96 pounds

Number of pounds of Brazil nuts = y = 19.04 pounds

Step-by-step explanation:

Let us represent:

Number of pounds of cashews = x

Number of pounds of Brazil nuts = y

The nut shack sells cashews for $6.00 per pound and Brazil nuts for $5.00 per pound. How much of each type should be used to make a 34 pound mixture that sells for $5.44 per pound

Our system of equations is given as:

x + y = 34...... Equation 1

x = 34 - y

6x + 5y = 34 × 5.44

6x + 5y = 184.96.......Equation 2

Ww substitute : 34 - y for x in Equation 2

6(34 - y) + 5y = 184.96

204 - 6y + 5y = 184.96

Collect like terms

- 6y + 5y = 184.96 - 204

-y = -19.04

y = 19.04 pounds

Solving for x

x = 34 - y

x = 34 - 19.04

x = 14.96 pounds

Number of pounds of cashews = x = 14.96 pounds

Number of pounds of Brazil nuts = y = 19.04 pounds

7 0
3 years ago
What is the y coordinate of point T write a decimal coordinate​
Vikentia [17]
The y-coordinate of point T would be -4.5 the whole ordered paid would be (-3,-4.5).
5 0
3 years ago
Read 2 more answers
The population of a small town can be modeled by the equation where t is the number of years since the collection of the populat
liberstina [14]

The true statements is the population was 4800 when the collection of data began. (3rd option)

<h3>What is an exponential function?</h3>

An exponential equation can be described as an equation with exponents. The exponent is usually a variable.

The general form of exponential equation is f(x) = e^{x}

Where:

  • x = the variable
  • e = constant

When a population grows at an exponential rate, it usually has compound rate of growth. Compound growth refers to the geometric progression of a variable.

The exponential equation used to represent an exponential growth usually have this form:

FV = PV (1 + r)^n

Where:

  • FV = future population
  • PV = present population
  • r = rate of growth
  • n = number of years

Given this exponential equation : f(x) = 4800 (1.02)^t

  • 4800 = initial population or population when the data collection began
  • 2 % = rate of growth
  • t = number of years

To learn more about exponential functions, please check: brainly.com/question/26331578

#SPJ1

7 0
2 years ago
Pls help me with this, I have no brain
melisa1 [442]

wait wait wait I feel like I did this before but I don't at the same time-

I have no brain too so yeah sorry- :((

8 0
3 years ago
Other questions:
  • sasha earns $8 per hour working at her grandparents house. During july, she worked 39 1/2 hours at the farm, and earned $47 baby
    9·1 answer
  • Which of the following is a liability?
    6·1 answer
  • Fill in the blank to make a true equation. (-9)(___) = 36 A. - 4 B. 4 C. 6 D. - 6
    13·1 answer
  • Simplify the following expression.
    13·1 answer
  • What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?
    6·1 answer
  • How to find the product -4(v+1)
    7·1 answer
  • Guys i need helpp plss​
    9·1 answer
  • HELP IM FAILING MATH OOOOFFFF
    13·1 answer
  • Help please asap i will give brainlist
    15·1 answer
  • CAN SOMEONE PLEASE WRITE AN EQUATION FOR THIS IF YOU KNOW HOW! I GIVE BRAINLIST!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!