ZaNiyahlove4711

23.05.2020 • 

Mathematics

A spinner has four equally sized sectors that are numbered 2, 4, 4, and 5. The spinner is spun twice and the product of the outcomes is found.

A fair decision is to be made about which one of four bushes will be planted.

The bush options are forsythia, lilac, hydrangea or dogwood.

Which description accurately explains how a fair decision can be made in this situation?

If the product of the spins is 8, a forsythia bush will be planted. If the product is 16, a lilac bush will be planted. If the product is 4 or 20, a hydrangea bush will be planted. If the product is 10 or 25, a dogwood bush will be planted.

If the product of the spins is 8, a forsythia bush will be planted. If the product is 16, a lilac bush will be planted. If the product is 20, a hydrangea bush will be planted. If the product is 4, 10 or 25, a dogwood bush will be planted.

If the product of the spins is 8, a forsythia bush will be planted. If the product is 10, a lilac bush will be planted. If the product is 20, a hydrangea bush will be planted. If the product is 4, 16 or 25, a dogwood bush will be planted.

If the product of the spins is 8, a forsythia bush will be planted. If the product is 16, a lilac bush will be planted. If the product is 25, a hydrangea bush will be planted. If the product is 4, 10 or 20, a dogwood bush will be planted.

Ответ:

DaFuzzyDude

22.01.2022

Mathematics

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a. The light travels 4,500,000 kilometers in 15 seconds

b. It takes the light 40 seconds to travel 12 million kilometers

Step-by-step explanation:

- The function d(t) = 300,000 t represents the distance in kilometers

  that light travel in t seconds

a.

- We need to find how far the light travels in 15 seconds

∵ d(t) = 300,000 t

∵ t = 15 seconds

- Substitute the value of t in the function above

∴ d(t) = 300,000 (15)

∴ d(t) = 4,500,000 kilometers

The light travels 4,500,000 kilometers in 15 seconds

b.

- We need to find how long does it takes the light to travel 12 million

  kilometers

∵ d(t) = 12 million kilometers = 12,000,000 km

∵ d(t) = 300,000 t

- Substitute the value of d(t) in the function

∴ 12,000,000 = 300,000 t

- Divide both sides by 300,000

∴ t = 40 seconds

It takes the light 40 seconds to travel 12 million kilometers

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