ACELLUS PRECALCULUS SEMESTER 1
UPDATED QUESTIONS AND ANSWERS
VERIFIED SUCCESS GRADED A+
Compute the exact value without using a calculator.
f(x) = 3 * 5^x, find f(0)
a. f(0) = 15
b. f(0) = 3 (Correct)
c. f(0) = 1
d. f(0) = 0 - CORRECT ANSWER- b. f(0) = 3
Compute the exact value without using a calculator.
f(x) = 6 * 3^x, find f(-2)
a. f(-2) =
b. f(-2) =
c. f(-2) = 54
d. f(-2) = (Correct) - CORRECT ANSWER- d. f(-2) = 2 /
3
,Compute the exact value without using a calculator.
f(x) = 48 * (1/2)^x, find f(4)
a. f(4) = 768
b. f(4) = 16
c. f(4) = 3 (Correct)
d. f(4) = 96 - CORRECT ANSWER- c. f(4) = 3
Logistics questions: - CORRECT ANSWER-
The population of New York state can be modeled by:
P(t) = 19. + 61.22e-0.03513t
P is the population in millions and t is the number of years since
1800, What was the population in 1900? (Round to nearest
thousandth)
Answer:
Okay so I think we have to plug in 100 for t because there were
100 years since 1800
P(100) = 19. + 61.22e-0.03513(100)
,So the population in 1900 would be 6.977. (Correct) -
CORRECT ANSWER- 6.977 million
Exponential questions: - CORRECT ANSWER-
Is the following an exponential function?
y = x^8 - CORRECT ANSWER- No
Is the following an exponential function?
y = 3^x - CORRECT ANSWER- Yes
Is the following an exponential function?
y = 4^2 - CORRECT ANSWER- No
Find a formula for the exponential function if, f(0) = 12 and f(1)
=4
a. f(x) = 4(1/3)^x
b. f(x) = 12^x
c. f(x) = 12(1/3)^x (Correct)
d. f(x) = 4^x - CORRECT ANSWER- c. f(x) = 12(1/3)^x
, Find a formula for the exponential function if, f(0) = 6 and f(-2) =
2/3
a. f(x) = 6(1/3)^x
b. f(x) = 3(6)^-X
c. f(x) = 6(3)^x (Correct)
d. f(x) = -2(6)^X - CORRECT ANSWER- c. f(x) = 6(3)^x
The population of New York state can be modeled by:
P(t) = 19. + 61.22e-0.03513t
P is the population in millions and t is the number of years since
1800, What was the population in 2020? (Round to nearest
thousandth)
Answer:
Okay so I think we have to plug in 220 for t because there were
220 years since 1800
P(220) = 19. + 61.22e-0.03513(220)
So the population in 2020 would be 19.193 million. (Correct) -
CORRECT ANSWER- 19.193 million
The population of New York state can be modeled by:
P(t) = 19. + 61.22e-0.03513t
UPDATED QUESTIONS AND ANSWERS
VERIFIED SUCCESS GRADED A+
Compute the exact value without using a calculator.
f(x) = 3 * 5^x, find f(0)
a. f(0) = 15
b. f(0) = 3 (Correct)
c. f(0) = 1
d. f(0) = 0 - CORRECT ANSWER- b. f(0) = 3
Compute the exact value without using a calculator.
f(x) = 6 * 3^x, find f(-2)
a. f(-2) =
b. f(-2) =
c. f(-2) = 54
d. f(-2) = (Correct) - CORRECT ANSWER- d. f(-2) = 2 /
3
,Compute the exact value without using a calculator.
f(x) = 48 * (1/2)^x, find f(4)
a. f(4) = 768
b. f(4) = 16
c. f(4) = 3 (Correct)
d. f(4) = 96 - CORRECT ANSWER- c. f(4) = 3
Logistics questions: - CORRECT ANSWER-
The population of New York state can be modeled by:
P(t) = 19. + 61.22e-0.03513t
P is the population in millions and t is the number of years since
1800, What was the population in 1900? (Round to nearest
thousandth)
Answer:
Okay so I think we have to plug in 100 for t because there were
100 years since 1800
P(100) = 19. + 61.22e-0.03513(100)
,So the population in 1900 would be 6.977. (Correct) -
CORRECT ANSWER- 6.977 million
Exponential questions: - CORRECT ANSWER-
Is the following an exponential function?
y = x^8 - CORRECT ANSWER- No
Is the following an exponential function?
y = 3^x - CORRECT ANSWER- Yes
Is the following an exponential function?
y = 4^2 - CORRECT ANSWER- No
Find a formula for the exponential function if, f(0) = 12 and f(1)
=4
a. f(x) = 4(1/3)^x
b. f(x) = 12^x
c. f(x) = 12(1/3)^x (Correct)
d. f(x) = 4^x - CORRECT ANSWER- c. f(x) = 12(1/3)^x
, Find a formula for the exponential function if, f(0) = 6 and f(-2) =
2/3
a. f(x) = 6(1/3)^x
b. f(x) = 3(6)^-X
c. f(x) = 6(3)^x (Correct)
d. f(x) = -2(6)^X - CORRECT ANSWER- c. f(x) = 6(3)^x
The population of New York state can be modeled by:
P(t) = 19. + 61.22e-0.03513t
P is the population in millions and t is the number of years since
1800, What was the population in 2020? (Round to nearest
thousandth)
Answer:
Okay so I think we have to plug in 220 for t because there were
220 years since 1800
P(220) = 19. + 61.22e-0.03513(220)
So the population in 2020 would be 19.193 million. (Correct) -
CORRECT ANSWER- 19.193 million
The population of New York state can be modeled by:
P(t) = 19. + 61.22e-0.03513t
