1)If a = 3 and b = 2 ,then find the value of the following
a) aa- bb
b) (a + b) b
2) Simplify and express each of the following in
exponential form:
a) ( 32 X 33)7
b) 20 X 30 ×40
c) 20 + 30 + 40
Answers
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32 - NCERT
15 common denominator. 3 * 5. After cross reducing, ... 30 = x. 800 x = 360. B. x = .07 or 7%. B. 60. 20) 20,400 * .08 = $1632.
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Answer:
A) aa-bb
ans:- 3×3 - 2×2
9 - 4
5
B) (a+b) b
ans:- b (a+b)
2(3+2)
2×3+2×2
6+4
ANSWER= 10
2) Simplify and express each of the following in
2) Simplify and express each of the following in exponential form:
a) ( 32 X 33)7
Ans:- 7(32×33)
7(1056)
7392
b) 20 X 30 ×40.
(keep the three zeros and multiple 2×3×4)
ans:- 24000
c) 20 + 30 + 40
ans:- 20+30= 50
50+40= 90
Step-by-step explanation:
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