f(x)=4x
To find the inverse, first change f(x) to y:
y = 4x
Now switch the variables:
x = 4y
Solve for Y:
Divide both sides by 4:
y = x/4
Now replace y with the inverse function f^-1(x):
f^-1(x) = x/4
Step-by-step explanation:
a. 5x² - 80
b. 5(x² + 4x - 4x -16)
5(x² - 16)
5x² - 80
c. 5x² - 20x + 20x - 80
5x² - 80
d. 5x² - 11
D doesn't belong because 5x² - 11 is not the answer to A, B, or C.
Answer:
504
Step-by-step explanation:
take 163 and subtract 142 then times by 24
Answer:
account after 2 years of simple interest at 10%: (2,500 * 0.10 * 2) + 2500 = 3,000
Note that simple interest only pays interest on the original balance, NOT on the accrued (paid) interest....
a) 5 more years at 10% simple: (2500 * 0.10 * 5) + 3,000 = $4,250
or
5 years compound interest on $3k: 3,000(1.07^5) = $4,207.66
b) TOTAL of 10 years
simple interest: (2500 * 0.10 * 10) + 2500 = 5,000
compound interest: only 8 years remain of the total 10 year time horizon
3000(1.07^8) = $5,154.56
Step-by-step explanation:
Answer:
its either C or D
Step-by-step explanation:
there are 2 possible outcomes for getting either heads or tails so if we divided 150 by 2 we get 75, so about 75 times you could get tails.
so maybe it is D, but im not sure
