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3 years ago

Find the area of circle having its radius 15cm

Mathematics

2 answers:

ElenaW [278]3 years ago

6 0

Answer:

Let π =22/7

area of circle = πr²

= 706.86

Step-by-step explanation:

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muminat3 years ago

4 0

Answer:

A≈706.86

Step-by-step explanation:

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The speed limit is 55 kilometers per hour. What is the speed limit in miles per hour?

AleksandrR [38]

Answer:

34.2 or 34.20

Step-by-step explanation:

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2 years ago

the equation a=1/2(b1+b2)h can be used to determine the area, a, of a trapezoid with height, h, and base lengths, b1 and b2. whi

galina1969 [7]

Answer:

b₁ = (2a – b₂h)/h; b₁ = (2a)/h – b₂; h = (2a)/(b₁ + b₂)

Step-by-step explanation:

A. <em>Solve for b₁ </em>

a = ½(b₁ + b₂)h Multiply each side by 2

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5 0

3 years ago

Read 2 more answers

A carpenter bought 750 nails. Each nail has a mass of 5.2×10−3 kilogram. What is the total mass, in kilograms, of the nails the

lawyer [7]

The total mass, in kilograms, of the nails the carpenter bought is 3.9 kilogram

<h3><u>Solution:</u></h3>

Given that carpenter bought 750 nails

Each nail has a mass of $5.2 \times 10^{-3}$ kilogram

To find: total mass, in kilograms of the nails bought

The total mass of the nails bought can be found out by multiplying number of nails bought by mass of each nail

Number of nails bought = 750

Mass of each nail = $5.2 \times 10^{-3}$ kilogram

total mass of the nails bought = number of nails bought x mass of each nail

$\text {total mass of the nails bought }=750 \times 5.2 \times 10^{-3}$

$\text {total mass of the nails bought }=3900 \times 10^{-3}=\frac{3900}{1000}=3.9$

Thus the total mass of nails bought is 3.9 kilogram

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3 years ago

The area of a rectangular wall of a barn is 64 square feet. Its length is 8 feet longer than twice its width. Find the length an

ValentinkaMS [17]

L×w=64 ft^2...(1)
2w+8= l...(2)

l=64-w...(1a)

2w+8= 64-w
2w+w+8=64
3w=64-8
3w÷3= 56÷3
w=18.6'

l×w= 64
l×18.6= 64
l= 64÷18.6
l= 3.44 to the nearest hundredths.

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3 years ago

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Can someone help me please!!?? Eleven and seven-hundredths added to four and twenty-five hundredth the sum is

zloy xaker [14]

Answer:

$15.32$

Step-by-step explanation:

Eleven and seven-hundredths $=11+\frac{7}{100}$

(Here, $\frac{1}{100}$ denotes the hundredth)

Four and twenty-five hundredth $=4+\frac{25}{100}$

Therefore,

Sum of Eleven and seven-hundredths added to four and twenty-five hundredth = $11+\frac{7}{100}+4+\frac{25}{100}$

$=15+\frac{32}{100}$

$=15+0.32$

$=15.32$

8 0

2 years ago

Find the area of circle having its radius 15cm​

Find the area of circle having its radius 15cm