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3 years ago

9

The perimeter of a rectangular garden is 126 feet. The length of the garden is twice the width. Find the length and width of the

garden.

2 answers:

snow_tiger [21]3 years ago

7 0

Answer:

2w+6

Step-by-step explanation:

iragen [17]3 years ago

6 0

Answer:

The width is 21 feet and the length is 42 feet.

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It equals to 8.82
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3 years ago

(4) A spherical balloon is being inflated so that its diameter is increasing at a constant rate of 6 cm/min. How quickly is the

fredd [130]

In terms of its radius $r$ , the volume of the balloon is

$V(r)=\dfrac{4\pi}3r^3$

The diameter $d$ is twice the radius, so that in terms of its diameters, the balloon's volume is given by

$V(d)=\dfrac{4\pi}3\left(\dfrac d2\right)^3=\dfrac\pi6d^3$

Differentiate both sides with respect to time $t$ :

$\dfrac{\mathrm dV}{\mathrm dt}=\dfrac\pi2d^2\dfrac{\mathrm dd}{\mathrm dt}$

The diameter increases at a rate of $\frac{\mathrm dd}{\mathrm dt}=6\frac{\rm cm}{\rm min}$ . When the diameter is $d=50\,\mathrm{cm}$ , we have

$\dfrac{\mathrm dV}{\mathrm dt}=\dfrac\pi2(50\,\mathrm{cm})^2\left(6\frac{\rm cm}{\rm min}\right)=7500\pi\dfrac{\mathrm{cm}^3}{\rm min}$

or about 23,562 cc/min (where cc = cubic centimeters)

5 0

3 years ago

What is the acceleration of a 10kg mass pushed by a 10n force

Grace [21]

This is Newtons second law of motion

Force = mass * acceleration
so here we have:-

10 = 10 * a

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3 years ago

A keypad has only the letters A−D. What is the total number of possible outcomes if the code has 3 letters?

____ [38]

Answer:

9

Step-by-step explanation:

Because 3 letter to find that just do 3 times 3 which = 9

Hope This Helped

4 0

2 years ago

Read 2 more answers

Samantha's notebook has 14 pages more than three times as much as Lisa's notebook.

Bumek [7]

X - Lisa's notebook

$3x+14=260\\
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3 years ago