shamiya15
22.01.2021 •
Mathematics
-6*(-3) as a real life problem
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Ответ:
18
Step-by-step explanation:
-6 × (-3)
negative× negative= positive
so 18.
Ответ:
height = 7 cm
Step-by-step explanation:
The area (A) of a trapezium is calculated using the formula
A =
h(a + b)
where h is the height and a, b the parallel bases
here a = 6, b = 12 and A = 63, hence
9h = 63 ( divide both sides by 9 )
h = 7