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3 years ago

Which of the following is NOT true

Mathematics

1 answer:

Vesnalui [34]3 years ago

5 0

Answer:

D. √27 +3>17/2

Step-by-step explanation:

The square root of 27 is 5.196, added by 3 equals 8.196.

But 17/2 as a decimal equals 8.5, 8.196 > 8.5 is not true.

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How many possible outcomes are there when flipping a coin 9 times? its 512 right?

BabaBlast [244]

Yes, I believe so.

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3 years ago

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the radius of a sheridan balloon is increasing at a rate of 3 centimeters per minute. how fast is the volume changing when the r

san4es73 [151]

The volume of the balloon is $2352\pi cc/min$

Explanation:

The radius of the balloon is increasing at a rate of 3 cm/min.

To determine the volume of the balloon when the radius is 14 cm, we shall use the formula $V=\frac{4}{3} \pi r^3$

The rate of change of r with respect to time t is given by,

$\frac{d}{d t}(r)=3 \mathrm{cm} / \mathrm{minute}$

Now, we shall determine the $\frac{d}{d t}(V)$

$\begin{aligned}\frac{d}{d t}(V) &=\frac{d}{d t}\left(\frac{4}{3} \pi r^{3}\right) \\&=\frac{4}{3} \pi\left(3 r^{2}\right)\frac{d}{d t}(r) \\&=4 \pi r^{2}\frac{d}{d t}(r)\end{aligned}$

Now, we shall determine the $\frac{d}{d t}(V)$ at $r=14 \mathrm{cm}$ and substituting $\frac{d}{d t}(r)=3 \mathrm{cm} / \mathrm{minute}$ , we get,

$\begin{aligned}\left(\frac{d V}{d t}\right)_{r=14} &=4 \pi r^{2} \frac{d}{d t}(r)\\&=4 \pi(14)^{2} (3)\\&=4 \pi 196 (3)\\&=2352\end{aligned}$

Thus, The volume of the balloon is $2352\pi cc/min$

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3 years ago

Suppose you are going to graph the data in the table below. What data should be represented on each axis, and what should the in

Korvikt [17]

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You always want the constant numbers such as time on the x-axis
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Use a graphing tool to solve the system. {13x+6y=−30x−2y=−4 Which ordered pair is the best estimate for the solution to the syst

Gnoma [55]

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If we graph both lines we can get the solution of the system (point of intersection)

The best estimate is (x,y) = (-2.625, 0.688)

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3 years ago

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There are 8 pencils in each pack of pencils. A teacher ordered some packs of pencils. How many pencils will the

Inessa05 [86]

Answer: The teacher will receive 96 pencils

Step-by-step explanation:

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2 years ago