4x-30=180
180-30
4x=150
150/4
37.5
x=37.5
Step-by-step explanation:
log243(81)=4/5
81=243^4/5
Option B
Step-by-step explanation:
f(x) = y = -1/2 × sqrt(x + 3), x >= -3
-2y = sqrt(x + 3)
4y² = x + 3
x = 4y² - 3
and now we need to rename x to y and y to x to make it a "normal" function :
y = 4x² - 3
since in the original function x >= -3, this gave us y <=0.
and therefore (remember the x of the inverse function actually stands for the y of the original function) the limit for the inverse function is x <= 0.
so, again, the full answer is
f^-1(x) = 4x² - 3, x <= 0
Answer: I'm not sure but there's some explanation..
Step-by-step explanation:
K=11
T=20
Symbol I C
Hope this helps!
*You also need a pic
So using a calculator this question is really easy 125,000x 1.35 ^10 =.
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