Answer:
1. C
2. B
3. C
4. A
5. D
Step-by-step explanation:
1) tan 41°= 30cm divide by y cm
y= 30 divide by tan-1 41°
Answer:
314 square feet
Step-by-step explanation:
we know that
The area that will be covered by the spray of the quarter-circle sprinkler head, is equal to the area of a quarter circle with radius of 20 feet
so
The area of a quarter circle is

we have


substitute
