3 years ago

The circumference and area of a circle with a radius of 5 mm

Mathematics

1 answer:

eduard3 years ago

6 0

Answer:

78.54mm2 is the area and circumference is 31.42 mm.

Step-by-step explanation:

formula for area pir2 for circumference is pi x r x2.

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3 years ago

Jane wants to save money to buy a motorcycle. She invests in an ordinary annuity that earns 4.2% interest, compounded quarterly.

Sauron [17]

Answer:

she need to pay is $550.40

Step-by-step explanation:

given data

interest = 4.2 % compounded quarterly = 0.042 / 4 = 0.0105

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to find out

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solution

we will apply here formula for future value for compound quarterly

that is

future value = principal × $\frac{(1+r)^{t} -1 }{r}$ .............1

put here all these value

future value = principal × $\frac{(1+r)^{t} -1 }{r}$

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You have been advised to save 5% of your income for an emergency fund. How much would you have saved in one year, following the

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3 years ago

A square park is 75 m long. Find the area of the park.<br>

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5625 m^2

If is is square, all sides must be congruent (all sides are 75m). To find area, you multiply width x length (how long). Therefore:

75m x 75m = 5626 m^2

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