Answer:
Step-by-step explanation:
The given function is
and the inverse function is
To find f(2), we substitute x=2 into the function f(x)=½x
This implies that,
Similarly,
Based on the above results,
Answer:
6.00$
Step-by-step explanation:
43.27 rounds down to 40.00.
15% of 40.00 is 6.00
Answer:
i think it would be b dont quote me on it
Step-by-step explanation:
Answer:
Find the 40th term for the arithmetic sequence in which
a8=60 and a12=48 .
Substitute 60 for a8 and 48 for a12 in the formula
an=a1+(n−1)d to obtain a system of linear equations in terms of a1 and d .
a8=a1+(8−1)d→60=a1+7da12=a1+(12−1)d→48=a1+11d
Subtract the second equation from the first equation and solve for d .
12=−4d−3=d
Then 60=a1+7(−3) . Solve for a .
60=a1−2181=a1
Now use the formula to find a40 .
a40=81+39(−3)=81−117=−36 .
Step-by-step explanation:
Answer: u = 8
Step-by-step explanation:
We need to get the variable by itself first. In this case the variable is u.
u is really just mutliplied by -4, (-4 x u). In this situation, the opposite of multiplication is division. So, we need to divide -4u by -4 on each side.
-32 = -4u
-32/-4 = -4u/-4
8 = u
u = 8