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3 years ago

HELP I’VE FALLEN AND I️ CANT GET UP! (jk) I️ JUST REALLY NEED HELP ON THIS ALGEBRA QUESTION?!

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

use cross products

(3r+6) *2 = 9*(2r-4)

6r+12 = 18r-36 distribute

12 = 12 r -36 subtract 6r from each side

48 = 12r add 36 to each side

4=r divide by 12

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Can you please help me with this problem

vagabundo [1.1K]

$\bf \begin{cases}
\textit{area of a circle}=\pi r^2
\\ \quad \\
circumference=2\pi r
\end{cases}
\\ \quad \\

12.56=\pi r^2\implies \cfrac{12.56}{\pi }=r^2\implies \sqrt{\cfrac{12.56}{\pi }}=\boxed{r}
\\ \quad \\
thus
\\ \quad \\
circumference=2\pi \boxed{r}\implies 2\pi \boxed{\sqrt{\cfrac{12.56}{\pi }}}$

8 0

4 years ago

Juan cuts a piece of rope that is 16 meter long into 2 equal pieces. What is the length of each shorter piece of rope? Enter you

denis-greek [22]

Answer:

$\text{Length of each shorter piece of rope}=8\text{ meter}$

Step-by-step explanation:

We have been given that Juan cuts a piece of rope that is 16 meter long into 2 equal pieces. We are asked to find the length of each shorter piece of rope.

To find length of each shorter piece of rope, we will divide total length of rope by 2 because Juan cuts the rope into two equal pieces.

$\text{Length of each shorter piece of rope}=\frac{16\text{ meter}}{2}$

$\text{Length of each shorter piece of rope}=8\text{ meter}$

Therefore, the length of each shorter piece of rope would be 8 inches.

5 0

3 years ago

What is the answer if you substitute 74 for y 74=x-1

klio [65]

Answer:

x=75

Step-by-step explanation:

74 = x-1

+1 +1

75=x

8 0

3 years ago

Y= 4x + 4 and -0.25x - 2

Yuri [45]

Answer:

Step-by-step explanation:

7 0

3 years ago

charlie and david bought 1/3 pounds of peaches. they are sharing the peaches equally. how many pounds of peaches will each perso

7nadin3 [17]

1/3 divided by two is .16

6 0

3 years ago

Read 2 more answers