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Natasha2012 [34]
3 years ago
6

A car entered a roundabout from Mason Avenue, traveled 280 feet, then turned onto Perry Street. If the roundabout has a diameter

of 150 feet, find the angle of rotation to the nearest degree the car traveled
Mathematics
1 answer:
Rama09 [41]3 years ago
7 0

Answer:

The angle of rotation is 214°.

Step-by-step explanation:

Formula for arc length:

The length of arc is the product of radius and the central angle ( in radian).

L= rθ

L= Length of arc

r= Radius

θ= Central angle (in radian).

Here L= 280 feet and diameter =150 feet.

Radius =\frac{150}{2} feet =75 feet

L= rθ

\Rightarrow \theta =\frac{L}{r}

\Rightarrow \theta =\frac{280}{75} radian.

We know that,

π  radian= 180°

\Rightarrow 1 \ radian= \frac{180^\circ}{\pi}

\Rightarrow \frac{280}{75} \ radian = \frac{180^\circ}{\pi}\times  \frac{280}{75}

                      = 214°

The angle of rotation is 214°.

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Step-by-step explanation:

We use the section formula:

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3 years ago
I'd seriously appreciate it if anyone could help ASAP! I'll give Brainliest!
Aliun [14]

I think your answer will be A. Aleta can buy 10 tops if she only buys 2 pair of pants.

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8 0
2 years ago
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Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 + 2x = 17
yawa3891 [41]
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Equation Given
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x² + 2x = 17

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Add the constant to make it perfect square
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x² + 2x + (2/2)² - ²(2/2)² = 17

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Evaluate the brackets
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x² + 2x + (1)² - ²(1)² = 17

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Form the perfect square
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(x + 1)² - 1 = 17

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Add 1 to both sides
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(x + 1)² = 17 + 1
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Square root both sides
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Solve for x
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x = 4.24 - 1 or - 4.24 -1

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3 years ago
This is the question i have.
Nimfa-mama [501]

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