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jek_recluse [69]
3 years ago
10

Find the radius r of the circle. Round your answer to the nearest tenth.

Mathematics
1 answer:
asambeis [7]3 years ago
3 0

Answer:

1.1 yd

Step-by-step explanation:

120 × π/180 = 2π/3

2.3 = r × 2π/3

=> r = 2.3 ÷ 2π/3

=> r ≈ 1.1

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If $4,000 is invested in an account for 25 years. Calculate the total interest earned at the end of 25 years if the interest is:
Scrat [10]

The interest is a) $7000

b) $17709.73

c) $18672.62

d) $18901.67

What is the formula for simple and compound interest?

Simple interest = (P× r× t)

Compound interest = P(1+r/n)^nt - P

We will find the interest as shown below:

P=$4,000

t=25 years

a) r=7%=0.07

Simple interest = (P× r× t)

= (4000×0.07×25)

= $7000

b) r=7%=0.07

Compound interest = P(1+r)^t - P

= 4000(1+0.07)^25-4000

= $17709.73056

rounding to nearest cents

= $17709.73

c) r=7%=0.07

n=4

Compound interest = P(1+r/n)^nt - P

= 4000(1+0.07/4)^(25*4)-4000

= $18672.62375

rounding to nearest cent

= $18672.62

d) r=7%=0.07

n=12

Compound interest = P(1+r/n)^nt - P

= 4000(1+0.07/12)^(25*12)-4000

= $18901.6728

rounding to nearest cent

= $18901.67

Hence, the interest is a) $7000

b) $17709.73

c) $18672.62

d) $18901.67

Learn more about Interest here:

brainly.com/question/21104975

#SPJ1

7 0
2 years ago
Brainliest + Points!
SCORPION-xisa [38]

Answer:

B $444.44

Step-by-step explanation:

if you pay $444.44 for 18 months (no interest) you will have $7,999.92 just round that and you have $8,000

6 0
3 years ago
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The answer is D. 10. Let me know if you want me to show my work
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3 years ago
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emmainna [20.7K]

Answer:

5x^3-2x^2+2x+9

Step-by-step explanation:

(5x^3+4x^2)−(6x^2−2x−9)

To find the opposite of 6x^2−2x−9 find the opposite of each term.

5x^3+4x^2−6x^2+2x+9

Combine 4x^2 and 6x^2 to get −2x^2.

5x^3-2x^2+2x+9

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Maya invested $5,000 in an account paying an interest rate of 3.9% compounded continuously. Assuming no deposits or withdrawals
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Answer: 8.2

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Delta Math Solution

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