PLEASE HELP! I need someone to help me with my home work is anyone able to help?

Mathematics

1 answer:

Monica [59]3 years ago

8 0

Answer:

Katie

Step-by-step explanation:

Use seconds as the standard unit to compare the speeds of the 4 runners

Tony is already in standard form and runs 12 ft/s

Katie:

450/30

15 ft/s

Frank:

1 mile = 5280 feet

5280/577

9.15 ft/s

Adam:

I minute = 60 seconds

880/60

14.67 ft/s

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To the nearest tenth, find the perimeter of ABC with vertices A (-2,-2) B (0,5) and C (3,1)

Pavlova-9 [17]

the perimeter will then just be the sum of the distances of A, B and C, namely AB + BC + CA.

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$\bf BC=\sqrt{9+16}\implies \boxed{BC=5}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\C(\stackrel{x_2}{3}~,~\stackrel{y_2}{1})\qquad A(\stackrel{x_1}{-2}~,~\stackrel{y_1}{-2})\\\\\\CA=\sqrt{(-2-3)^2+(-2-1)^2}\implies CA=\sqrt{(-5)^2+(-3)^2}\\\\\\CA=\sqrt{25+9}\implies \boxed{CA=\sqrt{34}}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\~\hfill \stackrel{AB+BC+CA}{\approx 18.11}~\hfill$

5 0

3 years ago

Amanda is 12 years old she has two sevens time as old as her father how many years ago was her father four times as old as Amand

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Ok so first I am assuming you ment 2 sevenths so 12 divided by 2 sevenths is 42. so the father is currently 42. so when she was 10 he was 40. since 10 is 4 times 40 that is the age we need. so 42 minus 40 is 2. therefore the answer is 2.

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3 years ago

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pshichka [43]

Answer:

Try ABECFDGHI

Step-by-step explanation:

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