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3 years ago

Help me resolve it, pls

Mathematics

1 answer:

amm18123 years ago

3 0

The function h(t) = -16t² + 72t will equal zero when the ball hits the ground:

-16t² + 72t = 0. Solving for the time, t, we factor -16t² + 72t : 16t (-t + 4.5) = 0.

This results in t = 0 and t = 4.5 sec. The ball hits the ground after 4.5 sec.

Problem 12.

Starting with A:(-5,3): Reflecting A over the y-axis results in B: (5,3). Translating B 3 units to the right results in C: (8,3). Finally, translating C down by 4 units results in D: (8,-1) (answer).

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In the figure, the slope of mid-segment DE is -0.4. The slope of segment AC is?

chubhunter [2.5K]

Answer:

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In the figure, the slope of mid-segment DE is -0.4. The slope of segment AC is?

A.) 0.4

B.) -0.4

C.) 2

D.) -2

Step-by-step explanation:

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# i hope it helps you

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8 0

2 years ago

A magazine surveyed readers and found that 175 of the 200 teenagers included in the survey spend at least two hours per night on

PIT_PIT [208]

Answer:

It is not accurate because only information from teenagers was used to make the claim.

Step-by-step explanation:

This is the correct answer because they only used the data that pertained to their teen readers. The magazine does not only have teen readers, but has many ages. The statement regarding internet use generalizes it to all readers, not just teens, therefore making its claim inaccurate because the scope of inference is not appropriate for the claim that was made.

6 0

3 years ago

juilo is paid 1.4 times his normal hourly rate for each hour he works over 30 hours in a week. Last week he worked 35hours and e

Licemer1 [7]

Let x be Juilo's normal hourly rate.

so for the 35 hr week we have:-

30x + 5*1.4x = 436.60

37x = 436.60

x = 436.60 / 37 = $11.80

His normal hourly rate = $11.80

So for a 30 hr week he will earn 11.80 * 30 = $354

So the amount $436.60 is a reasonable figure for a 35 hr week.

4 0

3 years ago

What is the quotient of the following rational expression?<br> x^3+3x^2-4x+5/x^2-2

Law Incorporation [45]

Answer:

Here:

Step-by-step explanation:

7 0

1 year ago

What is the slope of the line that contains the points (-4;2) and (6;-3) ?

tester [92]

Answer:

-1/2

Step-by-step explanation:

First you use to the formula m=y2-y1/x2-x1 and then you get -5/10 or -1/2. (m= slope)

4 0

3 years ago