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yaroslaw [1]
2 years ago
15

Six decreased by 9 times a number is -39

Mathematics
1 answer:
Andrew [12]2 years ago
5 0

The translation of the mathematical statement given as six decreased by 9 times a number is -39 is 9x - 6 = -39

<h3>How to translate the mathematical statement?</h3>

The mathematical statement is given as:

six decreased by 9 times a number is -39

9 times a number means

9 * x (assume x is the number)

So, we have:

six decreased by 9 times a number is -39 ⇒ six decreased by 9x is -39

Decreased by means we subtract 6 from 9x.

So, we have:

six decreased by 9 times a number is -39 ⇒ 9x - 6 = -39

Hence, the translation of the mathematical statement given as six decreased by 9 times a number is -39 is 9x - 6 = -39

Read more about mathematical statement at

brainly.com/question/4541471

#SPJ1

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1024 = 256

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4÷1024 = 256

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$5.10

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The radius of a right circular cylinder is increasing at a rate of 9 inches per minute and the height is decreasing at a rate of
pav-90 [236]

Answer:

\frac{dA}{dt}=1840.97 in^{2}/min      

Step-by-step explanation:

The equation of the surface of the right circular cylinder is:

A=2\pi rh+2\pi r^{2}=2\pi(rh+r^{2})

Now, the rate change of this area will be:

Using the change rule

\frac{dA}{dt}=\frac{\partial A}{\partial r}\frac{\partial r}{\partial t}+\frac{\partial A}{\partial h}\frac{\partial h}{\partial t}

Where:                          

  • \frac{\partial h}{\partial t} is the rate change of height (-16 in/min)
  • \frac{\partial r}{\partial t} is the rate change of radius (9 in/min)

 

\frac{dA}{dt}=\frac{\partial A}{\partial r}9+\frac{\partial A}{\partial h}(-16)

\frac{dA}{dt}=2\pi(h+2r)9-2\pi r16=2\pi((h+2r)9-16r)

Now, r = 16 and h = 29

\frac{dA}{dt}=2\pi((29+2*16)9-16*16)

\frac{dA}{dt}=1840.97 in^{2}/min      

I hope it helps you!

8 0
4 years ago
Can someone try to explain this? I'm super confused. my teacher is no help, he won't answer any of my emails :(​
lukranit [14]

Answer:

m=-1

Step-by-step explanation:

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Simply plug in 2 coordinates into the slope formula to find slope <em>m</em>:

m=\frac{0-(-2)}{-2-0}

m=\frac{0+2}{-2}

m=\frac{2}{-2}

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ValentinkaMS [17]

Answer:

B. 4:3

Step-by-step explanation:

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1 & 1/3 = 4/3

Thus, the answer is B. 4:3.

4 0
3 years ago
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