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bija089 [108]
3 years ago
14

2. Write the ratio as a fraction in simplest form, 20 mi to 32 mi. (picture)​

Mathematics
1 answer:
viktelen [127]3 years ago
5 0

Answer:

5/8

Step-by-step explanation:

20:32 .... 10:16..... 5:8.

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After being poured into a cup coffee cools so that its temperature T(t) is represented by the function T(t)=70+110 e^(-t/2) wher
Katyanochek1 [597]
T(t)=70+110e^(-t/2)

After 4 minutes, t= 4

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8 0
4 years ago
The radius of a right circular cone is increasing at a rate of 1.4 in/s while its height is decreasing at a rate of 2.1 in/s. At
kow [346]

Given:

\dfrac{dr}{dt}=1.4\text{ in/s}

\dfrac{dh}{dt}=-2.1\text{ in/s}

To find:

The rate of change in volume at r=120\text{ in. and }175\text{ in.}

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\dfrac{dV}{dt}=\dfrac{1}{3}\pi\times \left[(r^2\dfrac{dh}{dt}) + h(2r\dfrac{dr}{dt})\right]

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\dfrac{dV}{dt}=\dfrac{1}{3}\times \dfrac{22}{7}\times \left[(120)^2(-2.1) +175(2)(120)(1.4)\right]

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\dfrac{dV}{dt}=\dfrac{22}{21}\times 28560

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6 0
3 years ago
Solve for X
Stella [2.4K]

Answer:

C. 9

Step-by-step explanation:

The measure of a triangle is 180.  

Make all the angles equal 180.

50+80+6x-4=180.

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6x=54

x=9

4 0
3 years ago
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(4x - 3)(2x - 1) \geqslant 0 \\ \Leftrightarrow \begin{cases}4x - 3 \geqslant 0 \\ 2x - 1 \geqslant 0\end{cases}\: \vee \:\begin{cases}4x - 3 \leqslant 0 \\2x - 1 \leqslant 0 \end{cases} \\ \Leftrightarrow \begin{cases}x \geqslant  \frac{3}{4}  \\ x  \geqslant  \frac{1}{2} \end{cases}\: \vee \:\begin{cases}x\leqslant  \frac{3}{4}  \\x \leqslant  \frac{1}{2}  \end{cases} \\ \Leftrightarrow x \geqslant  \frac{3}{4} \: \vee \: x \leqslant  \frac{1}{2}  \\ \Rightarrow The\: third\: option

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3 years ago
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