Answer:
X would have to equal more than 5
Step-by-step explanation:
When the open part of the thingy, the <, is facing the 3x, it means that its bigger than the 15, and 3*5 is 15, x has to equal more than 5
First one
20=n/5+10
minus 10 both sides
10=n/5
times 5 both sides
50=n
2.
hmm
expand
p(x)=2x^2+5x+3-3x-3n
p(x)=2x^2+2x+3-3n
it looks like the coefients of the x terms are divisble by 2
because
if we have
p(x)=2(something)
the p(x) is divisible by 2
therefor that factor is 2 or -2
find what value of n works
so
3-3n=a multipule of 2
we are given
-3,-2,0,2
try each
3-3(-3)=3+9=12, that's divisble by 2
3-3(-2)=3+6=9, that's not divisible by 2
3-3(0)=3, that's not divisble by 2
3-3(2)=3-6=3, that's not divisble by 2
the onnly one that woks is when n=-3
answer is A
Answer:
V =πr^3
Step-by-step explanation:
The height of the pyramid is 3 times the radius of the cone. So we can express height of the pyramid as a function of radius of the cone.
Let's take radius of cone = r
So, the height of the pyramid = 3r
Area of the base of the cone = πr^2 = area of the pyramid.
If the base dimensions of the pyramid are l and b, then area of the pyramid, l x b = π r^2.
The volume of the pyramid = 1/3 x l x b x h
We know, l x b =π r^2 and h = 3r.
Thus, volume of pyramid is = 1/3 x π x r^2 x 3 r
= π r^3.
Thank you.
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