Answer:
The sum of next 8 terms is 292,968
Step-by-step explanation:
Here, the sequence is 3, 15, 75 , ...
Since the given term is in geometric progression, so
And here, r = 15/ 3 = 5
So, a = 3
r = 5
n = 8
So, sum of n terms of G. P
or,
= 292,968
Hence, the sum of next 8 terms is 292,968.
Answer:
fraction form: 8/5
decimal form: 1.6
mixed number form: 1 3/5
Step-by-step explanation:
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A=(AB+CD)*h/2
A=(12+19)*9/2=31*9/2=279/2=139,5 in.^2
1.
volume of cone=(1/3)hpir^2
h=6
r=9
v=(1/3)6pi9^2
v=2pi81
v=162pi
3.14=pi for problem
162 times 3.14=508.68
answer is D
2. 2=r, 24=h
v=(1/3)24pi2^2
v=8pi4
v=32pi
answer is D
3. 10=h
4=r
v=(1/3)10pi4^2
v=(1/3)10pi16
v=(1/3)160pi
v=(160/3)pi
answer is C
4. 9=h
3=r
v=(1/3)9pi3^3
v=3pi9
v=27pi
pi=3.14
v=84.78
84.8 is answer
5. d/2=r12/2=6=r
r=6
h=12
v=(1/3)12pi6^2
v=4pi26
v=144pi
pi=3.14
v=425.16
v=425.2
answer is 425.2
ANSWERS
1. D
2. D
3. C
4. 84.8
5. 425.6
27x^2 - 42x + 12
3 is a common factor:-
= 3(9x^2 - 14x + 4)
That is the equivalent expression.