Answer:
15 Square Inches
Step-by-step explanation:
Volume of the cone=40 cubic inches
Height of the cone=8 Inches
<u>Step 1:</u> Applying the formula for the volume of a cone
Volume of a Cone![=\frac{1}{3}\pi r^2 h=\frac{1}{3} X $Base Area X Height](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B3%7D%5Cpi%20r%5E2%20h%3D%5Cfrac%7B1%7D%7B3%7D%20X%20%24Base%20Area%20X%20Height)
<u>Step 2:</u> Substituting values for the variables
![40=\frac{1}{3} X $Base Area X 8](https://tex.z-dn.net/?f=40%3D%5Cfrac%7B1%7D%7B3%7D%20X%20%24Base%20Area%20X%208)
<u>Step 3:</u> Simplifying the right side
![40=\frac{8}{3} X $Base Area](https://tex.z-dn.net/?f=40%3D%5Cfrac%7B8%7D%7B3%7D%20X%20%24Base%20Area)
<u>Step 4:</u> Multiplying by the reciprocal
![40X\frac{3}{8}=\frac{8}{3} X\frac{3}{8} X $Base Area\\](https://tex.z-dn.net/?f=40X%5Cfrac%7B3%7D%7B8%7D%3D%5Cfrac%7B8%7D%7B3%7D%20X%5Cfrac%7B3%7D%7B8%7D%20X%20%24Base%20Area%5C%5C)
<u>Therefore, Base Area of the Cone=15 Square Inches</u>
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Answer:
Option B. 3 years.
Step-by-step explanation:
Sylvio loaned a friend $1,500 at a simple annual interest rate of 5%.
Formula of simple interest = I = P(rt)
I = Interest ($225)
P = Principal amount ( $1,500)
r = 5% = 0.05
t = time ( ? )
Now put the values to find the years.
225 = 1500( 0.05t)
225 = 75t
75t = 225
t =
t = 3
It will take 3 years to repay him if Sylvio earned $225 in interest.
Answer:
1/2,5
Step-by-step explanation:
If you factor you get (2x-1)(x-5) so
x=5,1/2