Simplify the expression(a4−6a2b2+ b4)−(−2a4+5a2b2+ 3b4) and hence, find its value for a = 2and b = −1.
1 answer:
Answer:
(a)
(b)
Step-by-step explanation:
Given
Solving (a): Simplify
Open brackets
Collect Like Terms
Simplify Like Terms
Solving (b): Simplify when a = 2 and b = -1
Hence:
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Step-by-step explanation:
21/25 = 0.84 = 84% > 70%
Step-by-step explanation:
the slope = (0+15)/(-1-4)=15/(-5)= -3
the Equation :
y+15= -3(x-4)
or
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y +3x=12-15
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so, the correct answer is II only
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Answer:
A.
B. $2,307.69
Step-by-step explanation:
You are given the formula
where V = investment earning simple interest
p = principal,
r = interest rate
t = time
So,
A.
B. r = 0.06 (or 6% as percent)
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so,
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Step-by-step explanation: