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11111nata11111 [884]
3 years ago
7

Factor by grouping 2x^2-5x-2x+5

Mathematics
1 answer:
andrey2020 [161]3 years ago
7 0
<span><span>2<span>x^2</span></span>−<span>7x</span></span>+<span>5 to your Answer</span>
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Add 2 to both sides so it becomes:
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3 years ago
Question text You have just won the lottery. The Lottery Corporation offers you two options: 1. a lump-sum payment of $400,000,
igomit [66]
Use present value equation.
If present value of annuity equals 400,000, then you are indifferent.

PV = A(v + v^2 + ...v^{20}) \\  \\ PV = A\frac{v(1-v^{20})}{1-v}

where v = 1/(1+r) and  A = annual payment = 800,000/20 = 40,000

PV = 400,000
After subbing in the numbers, the equation is:
10 = \frac{v(1-v^{20})}{1-v} \\  \\ 10 - 10v = v - v^{21} \\  \\ v^{21} - 11v+10 = 0 \\  \\ v = 0.928034 \\  \\ \frac{1}{1+r} = 0.928034 \\  \\ r = 0.0775

Therefore at interest rate of about 7.75% you are indifferent.
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4 years ago
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erastovalidia [21]
1. One eighth as a percent is 12.5 %
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Read 2 more answers
Pls help ASAP it’s confusing and I’m short on time
Korolek [52]

Answer:

6(3x + 1/2)

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Step-by-step explanation:

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9(2x + 1/3)= 18x + 3 ✅

4(4x + 1) -1= 16x + 3

2(9x + 5) - 7= 18x + 3 ✅

3(6x + 2) + 3= 18x + 9

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3 years ago
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Step-by-step explanation:


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