3 years ago

It ok Khalid 90 minutes to complete 40 task. Which answer choice is an equivalent rate.

Mathematics

1 answer:

solniwko [45]3 years ago

5 0

Answer:

its d

Step-by-step explanation:

he did one task in 2.25 mins so multiply by 10

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uranmaximum [27]

Answer:

I don't know the answer to the first one, but the second one's answer is 8.625

Step-by-step explanation:

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3 years ago

Mark’s father is 55. This is 15 years older than twice Mark's age. How old is Mark? Explain the method used for solving the prob

spin [16.1K]

Mark is 20. 55 - 15 = 40, 40 / 2 = 20. Mark is 20

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3 years ago

Read 2 more answers

Sketch the graph of each function

jenyasd209 [6]

Answer:

See diagram

Step-by-step explanation:

First, consider the graph of the parent function $y=\cos x.$ This function has the period $2\pi.$

Rewrite the function $y=2(1+\cos (x-\frac{\pi}{2}))$ as $y=2+2\cos (x-\frac{\pi}{2}).$ The graph of this function has the same period of $2\pi,$ is twice streched and translated $\frac{\pi}{2}$ units to the right and 2 units up graph of the parent function (see diagram).