Answer:
h = 2,67 units of length
Step-by-step explanation:
Volume of a cone is
V(c) = 1/3*π*r²
Where π*r² is area of the base
we know V(c) = 40 cubit units, and area of the base 15 square units, then
V(c) = Area of the base * h (height of the cone )
V(c) = 15 * h
h = V(c) / 15 ⇒ h = 40 / 15 ⇒ h = 2,67 units of length
Answer:
just add those together and u should get yo answer
Answer: y=-3/4x
Step by step explanation:
y-y_0=m(x-x_0)
y+3=-3/4(x-4)
y=-3/4x+3-3
y=-3/4x
m=rise/run
m=-3/4
Answer:
no
Step-by-step explanation:
The correct explanation is A
= 
Thus
× 
= 2.3 × 
= 2.3 × 
Answer:
At 7% $54,000
At 9% $156,000
Step-by-step explanation:
Let x be the amount invested at 7%, Then 2x + 48000 will be the amount invested at 9%
We know that:
7% = 0.07 & 9% = 0.09
So we can write the interest equation as follows:
0.07x + 0.09 (2x + 48000) = 17820
0.07x + 0.18x + 4320 = 17820
0.25x + 4320 = 17820
Subtracting 4320 from both sides of the equation we get:
0.25x = 17820 - 4320
0.25x = 13500
Dividing both sides of the equation by 0.25 we get:
x = 13500 / 0.25
x = $54,000 invested at 7%
&
2 x 54000 + 48000
= $156,000 invested at 9%
Hence the amount invested at 7% is $54,000.
& the amount invested at 9% is $156,000.
