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vodomira [7]
3 years ago
8

How long of a ladder is needed to reach a window sill 50 feet above the ground if the ladder rests against the building making a

n angle of 75∘ with the ground? Round your answer to the nearest foot and do not include units.
Mathematics
1 answer:
bija089 [108]3 years ago
4 0

Answer:

The guitar's volume was amplified, but it was hard to hear the notes since it was so loud.

What word or phrase is a signal word that a context clue might be nearby to help determine the meaning of "amplified"?

Step-by-step explanation:

You might be interested in
If three movie tickets cost $36, what is the cost per ticket?
xxTIMURxx [149]

Answer:

12

Step-by-step explanation:

If there is 3 tickets and it cost 36 dollars you will divide 36 by 3 and get 12

6 0
3 years ago
Read 2 more answers
A car driving at 20m/s accelerates at 3m/s2 for 3s. What is its final velocity? How far will it travel during this time?
-BARSIC- [3]

Answers:

Final velocity = 29 m/s

Distance traveled = 73.5 meters

========================================================

Work Shown:

The given data is

v_i = 20 \text{ m}/\text{s} = \text{initial velocity}\\\\a = 3 \text{ m}/\text{s}^2 = \text{acceleration}\\\\t = 3 \text{ s} = \text{time duration}\\\\

This leads to

v_f = v_i + a*t\\\\v_f = 20 + 3*3\\\\v_f = 20 + 9\\\\v_f = 29\\\\

The final velocity is 29 m/s.

----------

We can use that final velocity to find the distance traveled.

x = 0.5*(v_i+v_f)*t\\\\x = 0.5*(20+29)*3\\\\x = 0.5*(49)*3\\\\x = 24.5*3\\\\x = 73.5\\\\

The distance traveled is 73.5 meters.

----------

An alternative way to calculate the distance is to do this

x = \frac{(v_f)^2 - (v_i)^2}{2a}\\\\x = \frac{(29)^2 - (20)^2}{2*3}\\\\x = \frac{841 - 400}{6}\\\\x = \frac{441}{6}\\\\x = 73.5\\\\

Or you could do this

x = v_i*t + 0.5*a*t^2\\\\x = 20*3 + 0.5*3*3^2\\\\x = 20*3 + 0.5*3*9\\\\x = 60 + 13.5\\\\x = 73.5\\\\

For more information, check out the Kinematics equations.

7 0
2 years ago
1). 10 = 4x +x
vaieri [72.5K]

Answer:

Step-by-step explanation:

7 0
3 years ago
What's the answer??<br>​
I am Lyosha [343]

C. 116°

Step-by-step explanation:

X=Z add X & Z then subtract the answers from 180°

3 0
3 years ago
What is the radius of a circle if the length of a 45°<br>arc is 9π.​
Reil [10]

Answer:

the radius would be half of 45 so if you half it i think it would be 22.5 but someone correct me if im wrong

Step-by-step explanation:

have a good day

8 0
4 years ago
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