If |x| + 3 =9, then x =?

Mathematics

1 answer:

sasho [114]3 years ago

3 0

|x| = 6

{ x= 6
{ x= -6

X= { 6,-6}

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Please help!!!!!!!! Find radius and diameter. will mark brainiest!!!!!!!!!!

mylen [45]

Answer:

The radius is given its 10 in

The diameter is 20 in

Step-by-step explanation:

Two find the diameter given the radius you just multiply by 2

10x2=20 therefore the diameter is 20

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8 0

3 years ago

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Someone that understand this can help me out?

Kryger [21]

Plug in -2 to x in the formula
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3 years ago

Mr. Osterhout is putting trim around the edge of a circular merry-go-round that has a diameter of 15 feet. How much trim does he

Lubov Fominskaja [6]

Given:
circular merry-go-round that has a diameter of 15 feet.

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We need to find the circumference of the merry-go-round to get the measurement of the trim needed.

Circumference = π d
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8 0

3 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