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pickupchik [31]
3 years ago
6

A circle has a circumfence of 3.14 units what is the diameter of this circle ?

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

Step-by-step explanation:

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Choose True Or False <br><br>Question #1. <br>(3×5)+(5×5)=8×5<br><br>Question #2.<br>(3×2)+(8×3)=8×5
lions [1.4K]
1: True

This is because <span>(3×5)+(5×5)=40, and 8x5=40
</span>

2: False

This is because <span>(3×2)+(8×3)=30, not 40.



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3 years ago
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20 miles! :)


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The area of the octagon is how many meters squared?<br> Show your work.
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Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE
EleoNora [17]

Answer:

0, 10

Step-by-step explanation:

The given function is:

g(y) = \frac{y-5}{y^2-3y+15}

According to the quotient rule:

d(\frac{f(y)}{h(y)})  = \frac{f(y)*h'(y)-h(y)*f'(y)}{h^2(y)}

Applying the quotient rule:

g(y) = \frac{y-5}{y^2-3y+15}\\g'(y)=\frac{(y-5)*(2y-3)-(y^2-3y+15)*(1)}{(y^2-3y+15)^2}

The values for which g'(y) are zero are the critical points:

g'(y)=0=\frac{(y-5)*(2y-3)-(y^2-3y+15)*(1)}{(y^2-3y+15)^2}\\(y-5)*(2y-3)-(y^2-3y+15)=0\\2y^2-3y-10y+15-y^2+3y-15\\y^2-10y=0\\y=\frac{10\pm \sqrt 100}{2}\\y_1=\frac{10-10}{2}= 0\\y_2=\frac{10+10}{2}=10

The critical values are y = 0 and y = 10.

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3 years ago
Humans can hear sounds with frequencies up to 20,000 Hz, while dolphins can hear sounds as high as 150,000 Hz. Write these numbe
Goshia [24]
20,000 Hz = 2 × 10^4 Hz

150,000 Hz = 1.5 × 10^5 Hz
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3 years ago
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