Answer:
The last option
Step-by-step explanation:
she did not change the sign of +6 to -6
the constant term should be -15 and not -3
(i.) CA = πrl
CA = π (5*13)
CA = 65π
(ii.) TA = πrl + πr^2
TA = 65π + π (5^2)
TA = 65π + 25π
TA = 90π
(iii.) To get the height of the cone, you have to use the Pythagorean theorem. Plug in the radius for a and the slant height for c.
a^2 + b^2 = c^2
5^2 + b^2 = 13^2
25 + b^2 = 169 Height = 12
b^2 = 144
b = 12
(iv.) v = (1/3)πr^2h
v = (1/3)π(5^2)*12
v = (1/3)π(25*12)
v = (1/3)π*300
v = 100π
Answer:
6/35
Step-by-step explanation:
change 2/5 to 14/35 so the denominators are even.
after that you get -8/35+14/35
then you get 6/35
You need to add the second number and the answer to get your answer
A. 2
B.6
D.5
F.4
G. 3
Answer:
Step-by-step explanation:
let x be the length of third side.
10-5<x<10+5
or 5<x<15
so third side is between 5 and 15 .
