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luda_lava [24]
3 years ago
7

The minute hand of a certain clock is 4 in long. Starting from the moment when the hand is pointing straight up, how fast is the

area of the sector that is swept out by the hand increasing at any instant during the next revolution of the hand?
Mathematics
1 answer:
aliya0001 [1]3 years ago
3 0
  <span>A = πr² * t/60 
dA/dt = πr²/60 = π*4²/60 = 4π/15

Hope this helps!
STSN</span>
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A circle with a circumference of 111.6 cm is centered at the vertex of an angle. The rays of the angle subtend an arc that is 13
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Your fitness tracker overestimates the number of steps you take by 5%. The trackers indicates that you took 7350 steps today. Wr
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7,000

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PLZZ HELP I’m bad at math.
ipn [44]

Answer:

y<\frac{-1}{3}x+1 is inequality shown on graph.

Step-by-step explanation:

The graph shows representation of inequality,

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m=\frac{Y2-Y1}{X2-X1}

m=\frac{1-0}{0-3}

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The equation of line is given by y=mx+c

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To decide which side you are going to shaded area on the graph

Take test of origin.

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TRUE,

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4 0
3 years ago
The measured weights of 1,000 men in a certain village follow a normal distribution with a mean of 150 pounds and a standard dev
Hitman42 [59]
Z = (X-Mean)/SD 
<span>z1 = (165 - 150)/15 = +1 </span>
<span>z2 = (135 - 150)/15 = - 1 </span>
<span>According to the Empirical Rule 68-95-99.7 </span>
<span>Mean +/- 1SD covers 68% of the values </span>
<span>100% - 68% = 32% </span>
<span>The remaining 32% is equally distributed below z = - 1 and z = +1 </span>
<span>32%/2 = 16% 
</span>
<span>Therefore, 
</span>
<span>a) Number of men weighing more than 165 pounds = 16% of 1000 = 160 </span>
<span>b) Number of men weighing less than 135 pounds = 16% of 1000 = 160</span>
3 0
3 years ago
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