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3 years ago

Find the diameter of a circle with circumference of 15.70

Mathematics

1 answer:

Elanso [62]3 years ago

7 0

Find the diameter of a circle with circumference of 15.70

Solution: We are given:

The circumference of a circle $=15.70$

We are required to find the diameter of the circle based on given circumference.

We know that:

$Diameter = \frac{circumference}{\pi}$

$=\frac{15.70}{3.1416}$ $\because \pi \approx 3.1416$

$=5.00$ rounded to two decimal places

Therefore, the diameter of the circle with circumference 15.70 is 5

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Talja [164]

Answer:

Step-by-step explanation:

First distribute

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4 times -4 = -16

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3 years ago

Which of the following is a factor of 2xy + 8y − 8x − 32?

melamori03 [73]

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3 years ago

Which formula can be used to describe the sequence below?<br>27,9,3,1,...

mr_godi [17]

Answer:

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3 years ago

Help

ycow [4]

Answer:

hat: $12

t-shirt: $8

Step-by-step explanation:

Let the price of 1 hat = h.

Let the price of 1 t-shirt = t.

Julie: h + 2t = 28

Raj: 2h + t = 32

We have a system of 2 equations in 2 variables.

h + 2t = 28

2h + t = 32

Let's use the substitution method to solve the system of equations.

Solve the first equation for h.

h = 28 - 2t

Substitute 28 - 2t for h in the second equation.

2(28 - 2t) + t = 32

56 - 4t + t = 32

56 - 3t = 32

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t = 8

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Answer:

hat: $12

t-shirt: $8

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2 years ago

The Eiffel Tower is 324 m tall. If a tourist is looking at it from 100 m away from the base,

romanna [79]

Answer:

80,94º

Step-by-step explanation:

What I've done is, first draw a triangle with a 90º angle and write down the height (324m) and the tourist's distance (100m).

So I calculated the tangent of the angle of the tourist.

The formula is tan=Oposite side/adjacent

$tan=\frac{opposite side}{adjacent}$

$tan=\frac{324}{100} =3.24$

And now with your calculator you press "shift" and "tan". Then introduce 3,24 and it will give you the result (80,94º).

I hope it helped.

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2 years ago