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jok3333 [9.3K]
3 years ago
12

a restroom Holiday Lights blinks once every 3 seconds why is there blue lights blink once every four seconds how many times will

both sets of lights blink at the same time in 1 minute and 60 Seconds
Mathematics
1 answer:
Dovator [93]3 years ago
3 0

Answer:

  10 times

Step-by-step explanation:

The lights blink at the same time (if they ever do) every 12 seconds, the least common multiple of the individual times. Then in 120 seconds, they will blink together ...

  120/12 = 10

times.

_____

You could count 11 (simultaneous) blinks, if you count the one at the start of a period of 120 seconds and also the one at the end of that period. If you start marking time between (simultaneous) blinks, you will count only 10.

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Answer:

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Step-by-step explanation:

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3 years ago
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Refer to the table below if needed.
elena-14-01-66 [18.8K]

A quadrant is the area that is divided into the x and y axes

The quadrants in which tan \theta and cot \theta are positive are I and III

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

The tangent of an angle is calculated as:

\tan(\theta) = \frac{sin(\theta)}{\cos(\theta)}

While the cotangent of the angle is calculated as:

\cot(\theta) = \frac{cos(\theta)}{\sin(\theta)}

The above equations mean that:

For the tangent and cotangent of an angle to be positive, then the sine and the cosine of the angle must have the same sign.

  • In the first quadrant, the sine and the cosine angles are positive.
  • In the third quadrant, the sine and the cosine angles are negative.

Hence, the quadrants in which tan \theta and cot \theta are positive are I and III

Read more about trigonometry ratios at:

brainly.com/question/8120556

7 0
2 years ago
The circumference of a circle C is directly proportional to its radius r. if the circumference of a circle whose radius is 5 inc
dedylja [7]

16 pi inches


Circumference is double the radius

5 0
3 years ago
A card is drawn from a standard deck of cards without jokers
melamori03 [73]

Answer:

Step-by-step explanation:

Remark

The two black suites are

Clubs

Spades

Each of them has 13 cards so the total number of black cards is 2*13 = 26

Add to that the hearts which also has 13 cards

The total number of possible good cards is 13 + 26 = 39

Answer

P(hearts or Black) = 39/52

P(hearts or Black) = 3/4

P(hearts or Black) = 0.75

4 0
2 years ago
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