Với giá trị nào của r và s thì hạng của A bằng 2
1 answer:
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Answer:
The correct choice is
Step-by-step explanation:
The given equation is
We rewrite the left hand side of the equation as a power(a number to a given exponent.
Recall that;
We apply this property to obtain;
Since the exponents are the same, the bases are also the same.
Therefore
9514 1404 393
Answer:
(b) 38.5
Step-by-step explanation:
The polygon is a trapezoid with bases 4 and 7 and height 7. Its area is given by the formula ...
A = (1/2)(b1 +b2)h
A = (1/2)(4 +7)(7) = 77/2
A = 38.5 . . . . square units
