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Margarita [4]
3 years ago
11

A point on the edge of a fan blade that is rotating in a plane is 10 centimeters from the center of the fan. What is the distanc

e traveled, in centimeters, by this point in 15 seconds when the fan runs at the rate of 300 revolutions per minute?
Mathematics
1 answer:
almond37 [142]3 years ago
4 0

= 23, 561. 945 cm

Step-by-step explanation:

If the fan does 300 rev per min;

300 rev : 60 sec

x rev : 15 sec

x = 300 * 15 / 60

x = 75 rev

One revolution of the point on the blade is equal to the circumference of the circle with a radius of 10 cm. Therefore;

2πr

2* 3.14 * 10

= 62.83 cm

75 revolution will be;

75 * 62.83 cm

= 4712.39 cm

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Max was on vacation twice as long as Jared and half as longas Wesley. The boys were on vacation a total of 3 weeks. How many day
lord [1]
Make an equation.
Also, convert 3 weeks into days ⇒ 3 · 7 = 21 days.

x + 2x + 4x = 21

x is Jared.
2x is Max (because half of 4 is 2).
4x is Wesley.

Now solve the equation.

7x = 21
x = 3

Jared = x
Max = 2x
Wesley = 4x

Jared = 3 days
Max = 2(3) = 6 days
Wesley = 4(3) = 12 days
4 0
3 years ago
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Arisa [49]

Answer:

C

Step-by-step explanation:

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3 years ago
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Find the isosceles triangle side lengths
garik1379 [7]
You haven't included a diagram, however, if it's an isosceles triangle 2 of its sides will be the same and 1 will be different
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3 years ago
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Triangle EFG is dilated by a scale factor of 3 centered at (0, 1) to create triangle E'F'G'. Which statement is true about the d
jolli1 [7]

Answer:

Segment EH and segment E prime H prime both pass through the center of dilation (A)

The complete question related to this found on brainly (ID:16812154) is stated below:

Triangle EFG is dilated by a scale factor of 3 centered at (0, 1) to create triangle E'F'G'. Which statement is true about the dilation?

E(0,5) F(1,1) G(-2,1) H(0,1)

a) segment EH and segment E prime H prime both pass through the center of dilation.

b)The slope of segment EF is the same as the slope of segment E prime H prime.

c) segment E prime G prime will overlap segment EG. segment

d) EH ≅ segment E prime H prime.

Step-by-step explanation:

∆EFG = Original image

∆EFG is dilated to give ∆E'F'G'

∆E'F'G' = New image

Scale factor = 3

Center of dilation = (0,1) = H(0,1)

Coordinates ∆EFG : E(0,5) F(1,1) G(-2,1)

To determine the statement that is true about the dilation from the options,

First we would make a diagram on the coordinates of ∆EFG and center of dilation (H).

Find attached the diagram.

Length GF = 3unit

Length G'F' = 3×scale factor = 9unit

Length EH = 4unit

Length E'H' = 4×scale factor = 12unit

Then we would move 3units to the left on same line from G to get the coordinate of G'(mark the point).

Also move 3units to the right on same line from F to get the coordinate of F'(mark the point).

Both of these give length of G'F' = 9unit

Now move 8units to the top from E to get the coordinate of E'(mark the point).

From this you get length E'H' = 12unit

Draw lines connecting the three points to get ∆E'F'G'

See diagram for better understanding

From the diagram, EH and E'H' both pass through (0,1). The other options are wrong.

Therefore, Segment EH and segment E prime H prime both pass through the center of dilation (A)

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Find the area FOR BRANLIEST
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Answer:

1120

Step-by-step explanation: All you have to do is multiply 4x4x5x14 equals 1120

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2 years ago
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