An engine makes 4,800 revolutions in 12 minutes. At what rpm (revolutions per minute) is the engine rotating? 4,800 rpm 57,600 r
1 answer:
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Answer:
approx. 15.23
Step-by-step explanation:
6^2+14^2=c^2
Answer:
235 cm²
Step-by-step explanation:
Find area of the large rectangle on the bottom. To do that, find its length and width, then multiply them together.
Length of big rectangle=20 cm
Width of big rectangle=9 cm
20x9=180 cm²
Next, find the area of the small rectangle on the top. To do that, find its length and width, then multiply them together.
Length of small rectangle=11 cm
Width of small rectangle=5 cm
I found the width by subtracting 9 from 14, since the 9 cm is part of the large rectangle.
11x5=55 cm²
Add the areas of the two rectangles.
55+180=235 cm²
