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Sliva [168]
3 years ago
8

An engine makes 4,800 revolutions in 12 minutes. At what rpm (revolutions per minute) is the engine rotating? 4,800 rpm 57,600 r

pm 24,000 rpm 400 rpm
Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0
It is rotatin at 400 rpm
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Artist 52 [7]

The coordinates of the edges of the <em>mini-solar</em> cooker are (x₁, y₁) = (0, - 60) and (x₂, y₂) = (0, 60).

The distance between the two edges is 120 centimeters.

The equation for the <em>parabolic</em> mirror is x + 32 = (2/225) · y².

<h3>How to analyze a parabolical mini-solar cooker </h3>

Herein we must understand the geometry of the design of the <em>mini-solar</em> cooker to determine all needed information. The y-coordinates of the edges of the cooker are determined by Pythagorean theorem:

y = \pm \sqrt{(68\,cm)^{2}-(32\,cm)^{2}}

y = ± 60

The coordinates of the edges of the <em>mini-solar</em> cooker are (x₁, y₁) = (0, - 60) and (x₂, y₂) = (0, 60). The distance between the two edges is 120 centimeters.

Lastly, the equation of the <em>parabolic</em> mirror can be determined based on the equation of the parabola in <em>vertex</em> form:

x - h = C · (y - k)²     (1)

Where:

h, k - Coordinates of the vertex

C - Vertex constant

If we know that (h, k) = (- 32, 0) and (x, y) = (0, 60), then the vertex constant of the equation of the parabola is:

0 + 32 = C · 60²

C = 2/225

Then, the equation for the <em>parabolic</em> mirror is x + 32 = (2/225) · y².

To learn more on parabolae: brainly.com/question/21685473

#SPJ1

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2 years ago
If Jared makes 25 out of 30 shots on goal, what is the percentage?​
aniked [119]

Answer:

\frac{25}{30}  \times 100\% = 0.833 \times 100\% \\ =  83.3\%

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Simplify this expression 1x/18x
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Wouldn't it be 1/18x?????
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The value of X is 6. X=6

Step-by-step explanation:

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PLSSSSS HELP ME I WILL GIVE BRAINLIEST!!!!!!
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Top right is ur answer please give brainliest
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