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Kay [80]
3 years ago
10

There are 54 students in a speech contest. Yesterday, 1/3 of them gave their speeches. Today, 2/3 of the remaining students gave

their speeches. How many
Mathematics
1 answer:
inna [77]3 years ago
3 0

Answer:

18 student gave there speech yesterday

36 students gave there speech today

Step-by-step explanation:

54 total

54 * 1/3 = 18 student gave there speech yesterday

54*2/3 = 36 students gave there speech today

Hope this helps!

(Please mark ask brainiest)

Thanks!

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Belkis is pulling a toy by exerting a force of 1.5 newtons on a string attached to the toy.
LekaFEV [45]
From what I imagine in the problem description, the toy is located on the ground. Then, Belkis is pulling on the string to keep the toy moving just like how you put a leash on a dog. My illustration is shown in the picture. The F arrow is where Belkis pulls it. Its component vectors are Fx and Fy, as shown. 

From the figure, we can see that it forms a right triangle. So, it makes it easy because the pythagorean theorems are applicable and we can easily use trigonometric functions. First, let's determine Fy which is located opposite to the angle. Since we know the hypotenuse F to be 1.5 N, so we use the sine function:

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For the horizontal component, Fx is parallel to the adjacent side with respect to the angle. Thus, we use the cosine function.

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8 0
3 years ago
Read 2 more answers
What is the simplified form of 8b^3c^ 2a + 4b^3c^2?
stiv31 [10]
8b^{3} c^2+4b^{3} c^2
= (8+4) b^{3} c^2
=12 b^{3} c^2

Be carefully, normally there is no a in your expression. I think you made a mistake.

Hope this helps !

Photon
8 0
3 years ago
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