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SOVA2 [1]
3 years ago
6

A light flashes every two minutes a second light flashes every 3.5 minutes and a third light flashes every four minutes if all t

hree lights flash together at 8 PM what is the next time of the day they were all flash together
Mathematics
2 answers:
Bezzdna [24]3 years ago
6 0
The answer should be 8:28 pm
Diano4ka-milaya [45]3 years ago
6 0

Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28

Multiples of 3.5: 3.5, 7, 10.5, 14, 17.5, 21, 24.5, 28

Multiples of 4: 4, 8, 12, 16, 20, 24, 28

The least common multiple of the 3 numbers is 28, so the lights will flash at the same time every 28 minutes.

The time will be 8:28 PM

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Damm [24]

In the given triangle, y = 32°.

Step-by-step explanation:

Step 1; In the given triangle, the opposite side has a length of 9cm while the hypotenuse of the triangle measures 17cm. As we have the lengths of the opposite side and the hypotenuse side, we can calculate the sine of the value y.

sin y = \frac{oppositeside}{hypotenuseside}.

Step 2; Length of the opposite side = 9 cm.

Length of the hypotenuse side = 17 cm.

sin y = \frac{oppositeside}{hypotenuseside} = \frac{9}{17} = 0.5294.

We can multiply inverse sine on both sides to solve y.

y = sin^{-1} (0.5294) = 31.9657°.

Rounding this off to the nearest tenth we get, y = 32.0°.

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mote1985 [20]
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8 0
3 years ago
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Yuki888 [10]
That would be

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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