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3 years ago

Find the circumference and the area plzzz

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

8 0

Answer:

A) 43.96 cm (Circumference)

B) 153.86 square cm (Area)

A) 62.8 ft (Circumference)

B) 314 square ft (Area)

Step-by-step explanation:

3. Radius 7 cm

7*2=14 (Find the diameter)

14*3.14= 43.96 cm (Circumference)

7*7=49 (Find the square of radius)

49*3.14 = 153.86 square cm (Area)

4. Diameter: 20 ft

20*3.14 = 62.8 ft (Circumference)

20/2=10

10*10=100

100*3.14= 314 square ft (Area)

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Find the slope of the line that goes through (-4,5) and (3,-1)

scZoUnD [109]

Slope = (-1 - 5)/(3 + 4) = -6/7

answer
-6/7

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4 years ago

Read 2 more answers

A,b,c are all positive integers

miv72 [106K]

9514 1404 393

Answer:

Step-by-step explanation:

We can use a number of ratio units to represent b that is the LCM of 8 and 6. That value is 24. Then multiplying the first ratio by 3 and the second by 4, we have ...

a:b = 9:24 and b:c = 24:44

Then the ratios of all are ...

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3 years ago

Jimmy invests $500 in an account with a 3% interest rate, making no other deposits or withdrawals. What will Jimmy’s account bal

Anastaziya [24]

Answer:

Jimmy's account balance will be $673.43 after 10 years.

Step-by-step explanation:

The compound interest formula is given by:

$A = P(1 + \frac{r}{n})^{nt}$

Where A is the amount of money, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the time the money is invested or borrowed for.

In this problem, we have that:

$P = 500, r = 0.03, n = 2, t = 10$

What will Jimmy’s account balance be after 10 years if the interest is compounded 2 times each year?

$A = P(1 + \frac{r}{n})^{nt}$

$A = 500(1 + \frac{0.03}{2})^{2*10} = 673.43$

Jimmy's account balance will be $673.43 after 10 years.

4 0

3 years ago

Lewis drove 14 miles north and 48 miles east. On his return trip he drove home diagonally. How much shorter was the return trip?

Lina20 [59]

12 miles, Because using the Pythagorean theorem, A squared plus B squared = C squared. So 14 squared +48 squared equals 2500. The square root of 2500 is 50, so the total of 14+48 is 62-50 is 12 miles shorter

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3 years ago

A school gym has an area of 2400 square feet. For a pep rally there are 700 people in the gym. How many square feet are availabl

Ilia_Sergeevich [38]

2400/700 gives you about 3.42ft for each person.

:)

8 0

3 years ago