Answer:
40 and 202.5 m³
Step-by-step explanation:
(7)
Since the figures are similar then the ratios of corresponding sides are equal, that is
=
( cross- multiply )
12 PQ = 480 ( divide both sides by 12 )
PQ = 40 in
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The volume (V) of a pyramid is calculated as
V = Ah ( A is the area of the base and h the height ) , then
V = × 9² × 7.5
= × 81 × 7.5
= 27 × 7.5
= 202.5 m³
Answer:
4. C
5. 7
6. 3
Step-by-step explanation:
Four:
You have to multiply both of them. Just easy math!
Five:
This one is more complicated. You can see that it is asking you to plug in for a,
F(3):
F(1.25):
So now just subtract the answers. 7-0 equals 7.
Six:
Just look at the graph and see what number corresponds with y(6), or the 6 on the y axis. It appears to be three.
Have a nice day! Hope this helps. Don't forget to mark brainliest!