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olganol [36]
3 years ago
15

Heather is looking at different options for retirement investing. She finds an IRA that will pay 5% interest on the balance ever

y year until she retires. Once she retires it will no longer pay any interest on the balance. She decides to do this and invests $5,000 in the account. She retires 20 years after she opened the account. If she has still not withdrawn any money, how much money is in the account when she retires?
Mathematics
2 answers:
mezya [45]3 years ago
8 0
The formula is
A=p (1+r)^t
A the amount ones she retires ?
P amount invested 5000
R interest rate 0.05
T time 20 years
A=5,000×(1+0.05)^(20)
A=13,266.49
kirza4 [7]3 years ago
8 0

Answer:

D. $13,266.50

Step-by-step explanation:

$13,266.50 This is an exponential function that can be modeled by y = 5000(1.05)x. Since you want to know how much is in the account 20 years later plug in 20 for x.

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spin [16.1K]

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4.0x = 16

x = 4

Answer: 4

2. We'll assume those xs are in the numerator

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(6/7)x - 1/4 = (6/7)x  - 1/4

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That's always true.

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8 0
3 years ago
Read 2 more answers
Seventy-six percent of sunflower seeds will germinate into a flower, and a sample of 800 such sunflower seeds is randomly select
ollegr [7]

Answer:

12.08

Step-by-step explanation:

For each sunflower, there are only two possible outcomes. Either it germinates, or it does not. The probability of a sunflower germinating is independent of other sunflowers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

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\sqrt{V(X)} = \sqrt{np(1-p)}

Seventy-six percent of sunflower seeds will germinate into a flower

This means that p = 0.76

Samples of 800:

This means that n = 800

The standard deviation for the number of sunflower seeds that will germinate in such samples of size 800 is:

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5 0
3 years ago
ΔABC ​~ ΔDEC. ∠1 and ∠2 have the same measure. Find DC and DE.​ (Hint: Let DC=x and AC=x+3. Use the figure shown.)
Sveta_85 [38]
DC/AC=EC/BC
x/(x+3)=10/16
10(x+3)=16x
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30=6x
x=5
DC=x=5
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10/16=DE/AB,     DE=y

10/16=y/10
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3 years ago
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Korvikt [17]
I’ve attached a photo of the workings but the answer is 82

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3 years ago
Find the perimeter of A(-3,2), B(6,6), and C(7,-1).<br><br>Please show work.
Furkat [3]

AB=√{(6+3)²+(6-2)^2}=√(81+16)=√(97)

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3 0
3 years ago
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