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Black_prince [1.1K]
3 years ago
12

A searchlight rotates through one complete revolution every 52 seconds how long does it take to rotate 90 degrees?

Mathematics
1 answer:
nasty-shy [4]3 years ago
8 0

Time taken to rotate 90° is 13 seconds

<u>Explanation:</u>

Given:

To complete one revolution, the searchlight takes 52 seconds

One revolution = 360°

So,

360° is completed in 52 seconds

Time taken to complete 90° is \frac{52}{360} X 90

                                            = 13 sec

Therefore, time taken to rotate 90° is 13 seconds

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PilotLPTM [1.2K]
The 2 outside the brackets means that everything within the brackets needs to be multiplied by 2
8 0
3 years ago
Read 2 more answers
Triangle ABC has been rotated 90° to create triangle DEF. Write the equation, in slope-intercept form, of the side of triangle A
Ket [755]

the equation in the slope-intercept of the side of triangle ABC that is perpendicular to segment EF is y = x + 1

<h3>How to determine the equation</h3>

From the figure given, we can deduce the coordinates of the sides

For A

A ( 4,2)

For B

B ( 4, 5)

C ( 1, 2)

D ( 2, -4 )

E  ( 5, -4)

F ( 2, -1)

The slope for BC

Slope = \frac{y2 - y1}{x2 - x1}

Substitute the values for both B and C coordinates, we have

Slope = \frac{2- 5}{1 - 4}

Find the difference for both the numerator and denominator

Slope = \frac{-3}{-3}

Slope = 1

We have the rotation for both point ( 0, 1)

y - y1 = m ( x - x1)

The values for y1 and x1 are 1 and 0 respectively and the slope m is 1

Substitute the values

y - 1 = 1 ( x - 0)

y - 1 = x

Make 'y' the subject of formula

y = x + 1

Thus, the equation in the slope-intercept of the side of triangle ABC that is perpendicular to segment EF is y = x + 1

Learn more about linear graphs here:

brainly.com/question/4074386

#SPJ1

4 0
2 years ago
What two numbers add to +5 and have a product of -3?
Tasya [4]
They don't come out even.
As rounded decimals, the two numbers are

<em>5.54138...</em>  and  <em>-0.54138...</em>


6 0
3 years ago
What is the equation for a line that passes through the points (-4,-3) and (8,12)?
kherson [118]

Step-by-step explanation:

vv

6 0
3 years ago
If y is 15 times x, which equation shows the relationship between x and y?
zhannawk [14.2K]
Is= equals sign
times= multiplication


So y equals 15 times x

y= 15 * x
y= 15x


ANSWER: y= 15x (bottom choice)

Hope this helps! :)
4 0
3 years ago
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