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3 years ago

Solve for the unknown length

Mathematics

2 answers:

Dima020 [189]3 years ago

8 0

9.95 , rounded to the nearest hundredths :)

ANEK [815]3 years ago

3 0

Answer:

x = 9!

Step-by-step explanation:

10 is 2/3 of 15

12 is 2/3 of 18

now to solve for x

6 is 2/3 of 9

so we can say that x = 9!

hope this helps!!

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If u answer this make sure u put it in order,help meh plz

7nadin3 [17]

Answer:

C and C

Step-by-step explanation: For the first question, you have to make a fraction IN-ORDER by putting the 5 on top and adding, because that's what it asked for. For the second question, you have to do it in-order and reduce it. Glad I can help.

3 0

4 years ago

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V=4/3? r^2 Suppose that, for the sphere in the video, instead of being told how fast the radius is changing, we're told that the

grigory [225]

Answer:

$\frac{dr}{dt}=0.01$ cm per second

$\frac{dS}{dt}=320 square centimeter per secondStep-by-step explanation:We are given that volume of sphere [tex]V=\frac{4}{3}\pi r^3$

Volume of sphere is increasing at a constant rate

$\frac{dV}{dt}=4$ cubic centimeters per second

We have to find the rate of radius at which increasing

when r= 10 cm

Differentiating w.r.t time

$\frac{dV}{dt}=\frac{4}{3}\pi\cdot3r^2\frac{dr}{dt}$

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$\frac{dr}{dt}= \frac{1}{r^2}=\frac}{1}{(10)^2}=0.01$ cm per second

Now ,we are given that surface area of sphere

$S=4\pir^2$

Differentiate w.r.t time then we get

$\frac{dS}[dt}=8\pir\frac{dr}{dt}$

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5 0

3 years ago

Please find the answer

kati45 [8]

Y is 45 and X is 70.

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3 years ago

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A student runs 100 meters in 11 seconds. What is the speed of the student?

DiKsa [7]

100m= 0.621371 miles

11 seconds = 0.0030556 hours

s=d/t

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7 0

4 years ago

Which formula can be used to describe the sequence below? <br> 29, 9, 3, 1, 1/3,.....

Maksim231197 [3]

Answer:

Answer is $3^{4-n}$

Step-by-step explanation:

It is 29 in place of 27 . and Its a geometric series with first term 27 and common ratio $\frac{1}{3}$

and general formula for given sequence is given by $a (r)^{n-1}$

so plugging the value of a and r ,we get

$27 ([tex]\frac{1}{3}$ )^{n-1}[/tex]

$3^3(\frac{1}{3} )}^{n-1}$

$3^{4-n}$

5 0

4 years ago