Answer:
a) 12cm
b) 360cm²
c) 2160cm cubed
Step-by-step explanation:
a)
you would use Pythagoras theorem for A
so half of 18 is 9
15² - 9² = 144
the square root of 144 is 12
the height is 12cm
b)
18 x 20 = 360cm²
c)
csa x L
csa = b x h divide by 2
18 x 12 = 216cm²/2 = 108cm²
108xm² x 20cm = 2160cm cubed
Plug n = 14 into the formula
= -5(14) + 90
= -70 + 90 = 20
The answer is the one you put that and it says its correct
Answer:
0
Step-by-step explanation:
Answer: the answers are -3 and -6
Step-by-step explanation:
