Answer:
7 i think because 10-3 =7
also 3+7 =10
Step-by-step explanation:
Times both sides by -1
-8x=x²-20
add 8x both sides
0=x²+8x-20
factor
what 2 numbers multiply to get -20 and add to get 8
-2 and 10
0=(x-2)(x+10)
set to zero
x-2=0
x=2
x+10=0
x=-10
x intercepts at x=-10 and 2 or at the points
(-10,0) and (2,0)
The volume of a hemisphere is 2/3 pi R^3.
1) 2/3 x 3.14 x 10^3
2)2/3 x 3.14 x 1000
3)2/3 x 3140
4) 2093.3
Answer:
75 feet
Step-by-step explanation:
the shadow to the object would be a 4:5 ratio
since the shadow of the flagpole is 60 ft,
4x=60 so x would =15
then you multiply 15 by 5 and end up with 75
8 and 3/10 because the 3 is in the ones place so you make that a fraction which would be 3/10. Then 8 would be a whole number. Hope this helps!
