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aivan3 [116]
3 years ago
6

If a tree casts a 45-foot shadow at the same time that a 6-foot tall man casts a 7.5-foot shadow, find the height of the tree.

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
8 0

Answer:

36 feet

Step-by-step explanation:

I believe this is the answer

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A water wheel has a radius of 9 feet. The wheel is rotating at 5 revolutions per minute. Find the linear​ speed, in feet per​ mi
guajiro [1.7K]

Answer:

90\pi\text{ ft/s}\approx282.74\text{ ft/s}

Step-by-step explanation:

Refer to physics equation v=\omega r, where \omega is angular velocity.

Angular velocity's SI unit is rad/s. Convert rev/min to rad/s:

\displaystyle 5\text{ rev/min}=5\cdot \frac{1}{60}\cdot 2\pi\approx 0.524\text{ rad/s}

Now substitute \displaystyle\omega=\frac{1\pi}{6} and r=9 into v=\omega r:

\displaystyle v=\frac{1\pi}{6}\cdot 9=\frac{3}{2}\pi\text{ ft/s}=\boxed{90\pi\text{ ft/s}}

5 0
3 years ago
Jenn has 13 fewer marbles then Marty.she has 20 marbles.which equation can be solved to find how many marbles Marty has?
faust18 [17]
If jenn has 13 fewer marbles than marty and we know she has 20 marbles, you would add 13 to 20 (33) to find how many marbles marty has. the equation would be 13+20=33 (or any variable depending on the context of the question.)
6 0
4 years ago
Mr. Salazar assigns the same number of homework questions each school day. The ratio table below shows the total number of homew
vivado [14]

Answer The Answer is 80

Step-by-step explanation:

4*5=20

8*5=40

11*5=55

so 16*5=80

7 0
3 years ago
Read 2 more answers
4. Which value of n makes the equation 6.4n – 1.2 + 3n + 8.2 = 19.22 true?
d1i1m1o1n [39]
N=1.3
Picture attached for explanation
8 0
3 years ago
The value of 74 x 44 + 74 x 56 is *<br>Pls help ASAP Pls​
Maksim231197 [3]

Answer:

7400

Step-by-step explanation:

8 0
4 years ago
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