Answer:
Step-by-step explanation:
Given : The formula for the area of a trapezoid with altitude k and bases m and n is
We have solve for m .
Consider the given formula
Multiply both side by , we have,
Now subtract n both side, we have,
Thus,
If anyone knows please tell me the answer ;(
2 answers:
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Answer:
- as written, -57
- as perhaps intended, C. -11
Step-by-step explanation:
The expression shown evaluates as ...
7 + 32(-5 +1)/2 = 7 +32(-4)/2 = 7 -128/2 = 7 -64 = -57
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If we assume your "32" is supposed to be 3², or 3^2, then the expression evaluates differently:
7 +3²(-5 +1)/2 = 7 + 9(-4)/2 = 7 -36/2 = 7 -18 = -11 . . . . matches choice C
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When in doubt, you can have the Google calculator evaluate your expression. However, you do have to write it properly and with all the required parentheses.
