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2 years ago

Which expression has odd numbers for all of its coefficients?

Mathematics

2 answers:

nirvana33 [79]2 years ago

7 0

Answer:

Option D is correct

Step-by-step explanation:

This is because 5 and 3 are odd numbers and a coefficient is a number next to a variable and both of those coefficients in Option D are odd. Therefore, Option D is correct.

tamaranim1 [39]2 years ago

5 0

I think the correct answer is C

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2 years ago

A motion sensor has a range of 65 meters as shown. The ultrasonic waves sweeping out from the sensor span an angle of 135°.

VMariaS [17]

The approximate area that is within range of the motion sensor is 4975 square meters

<h3>How to determine the area of the range?</h3>

The figure is not given, however the area of the range can be calculated without the figure.

The given parameters are:

Angle, ⊕ = 135°

Radius, r = 65 meters

The area of the range is calculated using the following sector area

$A = \frac{\theta}{360} * \pi r^2$

This gives

$A = \frac{135}{360} * 3.14 * 65^2$

Evaluate

A = 4974.9375

Approximate

A = 4975

Hence, the approximate area that is within range of the motion sensor is 4975 square meters