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3 years ago

7

A roller coaster is at the top of a 72m hill and weighs 966N. At the top of the hill the coaster car has ___________________ ene

rgy.

1 answer:

igomit [66]3 years ago

3 0

Answer:

Potential

Step-by-step explanation:

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Angle 5 measures 90 degrees and angle 1 measures 40 degrees fill in the other angle measures just put it the number.

Serggg [28]

Answer:

sorry for being late

1=40

2=50

3=50

4=130

5=90

Step-by-step explanation:

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3 years ago

Evaluate tan ( cos^-1 ( 1/8 ) ) , giving your answer as an exact value (no decimals)

vekshin1

$\bf cos^{-1}\left( \cfrac{1}{8} \right)=\theta \qquad \qquad cos(\theta )=\cfrac{\stackrel{adjacent}{1}}{\stackrel{hypotenuse}{8}}\impliedby \textit{let's find the \underline{opposite}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{8^2-1^1}=b\implies \pm\sqrt{63}=b ~\hfill tan(\theta )=\cfrac{\stackrel{opposite}{\pm\sqrt{63}}}{\stackrel{adjacent}{1}} \\\\\\ ~\hspace{34em}$

$\bf \stackrel{\textit{keeping in mind that}}{tan\left(cos^{-1}\left( \frac{1}{8} \right) \right)}\implies tan(\theta )$

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3 years ago

X^2+25<br><br> A.(x+5)(x+5)<br> B.(x+5)(x-5)<br> C.(x-5)(x/5)<br> D.prime

adell [148]

It’s prime because none of the other answers work.

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3 years ago

What do the word each me in math

Elodia [21]

Each means to multiply I dont know if thats the word you are asking to us to define

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3 years ago

Brian received a gift card of $60 for a pizza restaurant. The restaurant charges $5 per pizza. Ashley received a gift card of $1

Semmy [17]

Ashley can purchase 10 pizzas and Brian can purchase 12 so there would be nothing left on the cards

5/60=12

10/100=10

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3 years ago