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Salsk061 [2.6K]
2 years ago
14

A child pushes a playground merry-go-round so handle A moves to position B. The radius of the merry go round is 5 feet and the d

istance traveled by the handle along the arc from A to B is 4.5 feet. Find to the nearest degree, the measure of minor arc AB.
Mathematics
1 answer:
dangina [55]2 years ago
5 0
Use the sin function to solve for the central angle.
Chord length = 2Rsin(c/2)
where
chord length =4.5 feet
radius = 5 feet
C= central angle
Rearrange the formula to get the central angle  and substitute all the given values
Central angle = 53.49 degrees
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nalin [4]
<h2>Therefore he took 40 gram of 1^{st} type solution and 10 gram of 2^{nd} type solution.</h2>

Step-by-step explanation:

Given that , A pharmacist 13% alcohol solution another 18% alcohol solution .

Let he took x gram solution of 1^{st} type solution

and he took (50-x) gram of 2^{nd} type solution.

Total  amount of alcohol =[x\times\frac{13}{100}] +[(50 -x) \times\frac{18}{100} ] gram

Total amount of solution = 50 gram

According to problem

⇔\frac{ [x\times\frac{13}{100}] +[(50 -x) \times\frac{18}{100} ]}{50}= \frac{14}{100}

⇔\frac{13x +900-18x}{100\times50} =\frac{14}{100}

⇔- 5x= 700 - 900

⇔5x = 200

⇔x = 40 gram

Therefore he took 40 gram of 1^{st} type solution and (50 -40)gram = 10 gram of 2^{nd} type solution.

7 0
2 years ago
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Plato explains that we know geometry by _________.
sasho [114]

<span>Plato explains that we know geometry by our gain knowledge through recollection. Our soul is what recollects this place hence we came where there exist unchanging truths. Delivered the theory of Forms, according to which the world people know by means of the senses is just an imitation of the eternal, pure, eternal, and fixed world of the Forms.</span>

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According to VSEPR theory, if there are five electron domains in the valence shell of an atom, they will be arranged in a(n) ___
andriy [413]

Answer:

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Step-by-step explanation:

It's difficult to explain without a drawing or a model, but it would basically arrange itself into two triangle based pyramids connected to each other at the base, which is trigonal bypyramidal.

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Vinvika [58]

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Total cost $7.10 (0.45+6.65)

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andrezito [222]
-2y^2 + 6y + 2 = 0
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