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lawyer [7]
3 years ago
13

A triangle has sides that measure 2 units, 5 units, and 5.39 units What is the area of a circle with a circumference that equals

the perimeter of the triangle? Use 3.14 for pie, and round your answer to the nearest whole number
O 39 units
O 25 unit
O 49 units
0 12 units
Mathematics
2 answers:
muminat3 years ago
4 0
49 unit because and any subsequent words was ignored because we limit queries to 32 words.
vladimir1956 [14]3 years ago
4 0

Answer:

The <u>area of a circle</u>:

A = 12

Step-by-step explanation:

-First find the perimeter of a triangle by adding the three measures from the sides of a triangle (2 units, 5 units, and 5.39 units):

Finding the perimeter of a triangle:

2 + 5 + 5.39 = 12.39

Perimeter = 12.39 units

-After have the perimeter of a triangle, find the area of circle by using this formula:

A = \frac{C^{2}}{4\pi }

-Since circumference equals the perimeter of the triangle, then the circumference would be 12.39. After you have the circumference, apply it for the formula:

A = \frac{12.39^{2}}{4\pi }

Then, solve for area:

A = \frac{12.39^{2}}{4\pi }

A = \frac{1535121}{40000\pi } \approx 12.2

Since 12.2 can't be rounded to the nearest whole number, the answer will be written as:

A = 12

So, the area of a circle is A = 12 .

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Triangle PQR is reflected across a line, P = (4,–5), and P’ = (–4, –5). What is the line of reflection? the x-axis the y-axis th
Evgesh-ka [11]

For this case we have that the original vertex is given by:

P = (4, -5)

We apply the following transformation:

(x, y) (-x, y)

We have then:

(4, -5) (- (4), -5) (- 4, -5)

Therefore, we have a reflection on the y axis.

The point obtained is the vertice:

P '= (-4, -5)

Answer:

the line of reflection is:

the y-axis

3 0
3 years ago
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Naomi has earned $81 mowing lawns the past two days. She worked 2 1/2 hours yesterday and 4 1/4 hours today. If Naomi is paid th
Anettt [7]

Answer:

Twelve dollars per hour

Step-by-step explanation:

Add 2 1/2 and 4 1/4 together to get 6 3/4. Put it into decimal form (6.75), and divide. 81 ÷ 6.75 = 12.

3 0
3 years ago
11 The net force on a vehicle that is accelerating at a rate of 1.5 m/s² is 2,800 newtons. What is
ololo11 [35]

Answer:

Mass = 1867kg

Step-by-step explanation:

Given

Force = 2800N

Acceleration = 1.5m/s^2

Required

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This question will be answered using Newton's second law

Force = Mass * Acceleration

Substitute values for Force and Acceleration

2800 = Mass * 1.5m/s^2

Make Mass the subject

Mass = \frac{2800N}{1.5m/s^2}

Mass = 1866.6667kg

Mass = 1867kg ---- approximated

<em>Hence, the mass of the vehicle is 1867kg</em>

4 0
3 years ago
A seamstress uses 3/4 yards of material to make a uniform top for band members. If there are 6 3/4 yards of material left on the
dalvyx [7]

Answer:

She can make 9 uniform tops from the material left.

Step-by-step explanation:

Given:

Yards of material left on the bolt = 6\frac{3}{4}

Material requirement for a uniform top for band members = \frac{3}{4}\ yd

To find the number of tops that can be made from the material left.

Solution:

In order to find the number of tops that can be made from 6\frac{3}{4} yards of material, we need to divide 6\frac{3}{4}\ yd  by  \frac{3}{4}\ yd.

Number of uniform tops that can be made is given as:

⇒ 6\frac{3}{4}\div \frac{3}{4}

We first convert mixed number to fractions.

⇒  \frac{27}{4}\div \frac{3}{4}

To divide fractions the fractions are multiplied after flipping the divisor.

⇒ \frac{27}{4}\times \frac{4}{3}

⇒ \frac{27}{3}

⇒ 9

Thus, she can make 9 uniform tops from the material left.

4 0
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tiny-mole [99]

Answer:

T = -7 + 3t .

Step-by-step explanation:

T = -7 + 3t   where T = the temperature and t = the times in hours.

5 0
3 years ago
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