Hello from MrBillDoesMath!
Answer:
Take you pick below! (either x 8 or x = 7.01, approx, depending how the question is interpreted)
Discussion:
Interpretation 1
If the question is
2^(x -1) = 128, then as 2^7 = 128,
x-1 = 7 so x = 8
Interpretation 2
If the question is (2^x -1) = 128, then..
2^x = 128 + 1 = 129 =>
log(2^x) = log(129) =>
xlog(2) = log(129) =>
x = log (129) / log2 = 7.01
Regards,
MrB
Answer:
Cheetahs can go from 0 to 60 miles per hour in just 3.4 seconds and reach a top speed of 70 miles per hour. While they are the fastest land animal in the world, they can only maintain their speed for only 20 to 30 seconds.
Step-by-step explanation:
Here is one equivalent expression 9x+6. Tell me if you need more
BRAINLIEST please
Answer:
450 x 15 = 6750 ft 2
Step-by-step explanation:
Answer:
32%
Step-by-step explanation:
The slope of the road is measured as
slope = 
= 
To express as a percentage multiply the fraction y 100% , that is
slope = × 100% = 16 × 2 = 32%
