So, there are 2 halves, now if the truck goes 90 mph on the second half, the average speed then will be
Solve 5^x=81. 2Round to the nearest ten-thousandth. X≈????
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x = 7 and x = –7.
Solution:
Given data:
and
To find the solutions when f(x) = 64.
Both are equations of f(x), so equate the given equations, we get
To isolate the constant term subtract 15 from both sides.
49 can be written as 7².
Taking square root on both sides of the equation, we get
x = ±7
The solutions to f(x) = 64 is x = 7 and x = –7.
Answer:
answer and explanation in the pic above
hope it helps
