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11111nata11111 [884]

3 years ago

13

Mrs. Williams estimates that on average her family recycles 12.6 pounds of plastic each month. In a year's time, how much landfi

ll space will Mrs. William's family save if 1 pound of plastic saves 7.4 yards of landfill space

1 answer:

Dmitry_Shevchenko [17]3 years ago

4 0

Answer:1.702

Step-by-step explanation:

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A scuba diver descends in the water at a rate of 20 1/2 feet per minute for 2.8 minutes. He immediately changes course when he s

N76 [4]

Answer:

7.4 feet below sea level

Step-by-step explanation:

Assumed the starting point is the sea level 0.

<u>After 2.8 min the diver is at position:</u>

20 1/2 * 2.8 =
20.5 * 2.8 =
57.4 feet below sea level

<u>The position change after next 2 minutes:</u>

25*2 = 50 feet

<u>The position of the diver after 4.8 min:</u>

57.4 - 50 = 7.4 feet below sea level

3 0

2 years ago

A square and a circle intersect so that each side of the square contains a chord of the circle equal in length to the radius of

krek1111 [17]

Answer:

Step-by-step explanation:

it is given that Square contains a chord of of the circle equal to the radius thus from diagram

$QR=chord =radius =R$

If Chord is equal to radius then triangle PQR is an equilateral Triangle

Thus $QO=\frac{R}{2}=RO$

In triangle PQO applying Pythagoras theorem

$(PQ)^2=(PO)^2+(QO)^2$

$PO=\sqrt{(PQ)^2-(QO)^2}$

$PO=\sqrt{R^2-\frac{R^2}{4}}$

$PO=\frac{\sqrt{3}}{2}R$

Thus length of Side of square $=2PO=\sqrt{3}R$

Area of square $=(\sqrt{3}R)^2=3R^2$

Area of Circle $=\pi R^2$

Ratio of square to the circle $=\frac{3R^2}{\pi R^2}=\frac{3}{\pi }$

5 0

2 years ago

Please helpASAP! Approximately 30% of the land on

timurjin [86]

< 30% or <0.3

less than 30

5 0

2 years ago

Find the sum 45+46+47+48+...+129+130

Leno4ka [110]

Use photo math to help you with this question

6 0

2 years ago

Solve the following system of equations:<br><br> x + 3y = −4<br> x + 5y = −6<br><br> pls and thx

Agata [3.3K]

Answer:

x = -1 y = -1

Step-by-step explanation:

x + 3y = −4

x + 5y = −6

Multiply the first equation by -1

-x - 3y = 4

The add to the second equation to eliminate x

-x - 3y = 4

x + 5y = −6

--------------------

2y = -2

Divide by 2

2y/2 = -2/2

y = -1

Now solve for x

x+3y = -4

x +3(-1) = -4

x -3 = -4

Add 3 to each side

x-3+3 = -4+3

x = -1

4 0

3 years ago

Read 2 more answers