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3 years ago

The circumference is 12 mile. What is the diameter?

Mathematics

2 answers:

photoshop1234 [79]3 years ago

8 0

To find the diameter of a circle, using only the circumference, you need to divide the circumference by π, or 3.14.

So in this case, you must divide 12 by 3.14, which gives you 3.82.

I even double checked this, and should be correct then.

SashulF [63]3 years ago

3 0

Answer:

The diameter is approximately 3.8 mi

Step-by-step explanation:

The circumference formula is C = πd. Dividing both sides by π results in a formula for d (diameter) when C is known:

d = C / π

In this case, with C = 12 mi,

d = 12 mi / π, or approximately 3.8 mi

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Write an equation that relates the number of peppers, n, and the<br><br> cost, C.

SCORPION-xisa [38]

Complete Question:

The local Farm Market sells peppers at five for $2.25. Write an equation that relates the number of peppers, n, and the cost, C.

Answer:

$C = 0.45n$

Step-by-step explanation:

Given

$5\ peppers = \$2.25$

Required

Determine the relationship between C and n

$5\ peppers = \$2.25$

Divide both sides by 5, to get the cost of 1 pepper

$\frac{5\ peppers}{5} = \frac{\$2.25}{5}$

$1\ pepper = \frac{\$2.25}{5}$

$1\ pepper = \$0.45$

Multiply both sides by n to get the cost of n pepper

$n*1\ pepper = \$0.45*n$

$n\ pepper = \$0.45n$

So, we have:

$C = 0.45n$

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3 years ago

When I think of a number, double it, then add 7, I get 25. What number did I think of? ( Hint: Let the number be x)o

vivado [14]

Hey there!

The answer is $9$

We will start by forming an equation to solve this.

So we are starting with a number, $x$ , then doubling it and adding $7$ , which gives us 25.

So:

$2x+7=25$

Now we solve this equation:

$2x+7=25$

$2x=18$

$x=9$

Have a super awesome day!

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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