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3 years ago

Can you help me with this please

Mathematics

1 answer:

HACTEHA [7]3 years ago

7 0

Answer:

part a is a and c

part b is sine

Step-by-step explanation:

I hope this helped :)

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Jonathan went to the movies with $48 he earned at his after-school job. The ticket cost $8.75. He spent $7.45 for refreshments.

aleksley [76]

Answer:

8.75+7.45=16.2. 16.2 is equal to $16.20 so 48.00-16.20=31.8. Jonathan had $31.80 left.

Step-by-step explanation:

7 0

3 years ago

A road has a 10% grade, meaning increasing 1 unit of rise to every 10 units of run.

finlep [7]

Answer:

Part a) The elevation of the road is $6\°$

Part b) The rise is $0.2\ km$

Step-by-step explanation:

Part a) What is the elevation of the road to the nearest degree?

Let

y-----> the rise of the road ( vertical distance)

x ----> the run of the road (horizontal distance)

we have

y/x=1/10

we know that

The ratio y/x is equal to the tangent of the angle of the elevation of the road

Let

$\theta$ ----> angle of the elevation of the road

$tan(\theta)=y/x$

$tan(\theta)=1/10$

$\theta=arctan(1/10)=6\°$

Part b) If the road is two km long, how much does it rise?

using proportion

$1/10=y/2$

$y=2/10=0.2\ km$

3 0

3 years ago

Find the greatest common factor pf 110,40,and 120

Ymorist [56]

Answer:

Step-by-step explanation:

hope this helps

6 0

3 years ago

If f(x) = 5x - 12, find f(x) when x= - 12<br><br> Plz answer

Burka [1]

Answer:

-72

Step-by-step explanation:

first replace x with -12 so 5(-12)-12

then simplify which makes it -60-12

finally solve that which gives you -72

hope this helps :)

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3 years ago

Holass alguien para un free

Fiesta28 [93]

Answer:

Sorry I can't speak Spanish. Can you please transalate your answer to English so that I can help you?

Step-by-step explanation:

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3 years ago

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