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3 years ago

12

The computer lab is replacing the broken computers with 13 wireless touchscreen devices. About what percent of the lab is wirele

ss devices?

1 answer:

Alborosie3 years ago

8 0

How many computers where there in the first place? cool we know how many were replaced but how many were there in the first place?

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Evaluate the following expression when x = 1 and y = 2 and z = 6<br><br> -3y2-4y + 5

3241004551 [841]

Answer:

-15

Step-by-step explanation:

-3(2)2-4(2)+5

-12-8+5

-20+5

5-20= -15

7 0

3 years ago

Some farmers use a circular irrigation method. An irrigation arm acts as the radius of an irrigation circle. How much land is co

SIZIF [17.4K]

Answer:

The land that is covered with an irrigation arm of 370 ft is $430,084\ ft^2$

Step-by-step explanation:

<u>Area of the circle</u>

Being r the radius of a circle, its area can be calculated as follows:

$A=\pi\cdot r^2$

The irrigation arm acts as the radius of the irrigation circle, thus r=370 ft. The land covered is the area under the irrigation arm, thus:

$A=\pi\cdot 370^2$

$A=430,084\ ft^2$

The land that is covered with an irrigation arm of 370 ft is $430,084\ ft^2$

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3 years ago

Which relationship describes angles 1 and 2?

Sholpan [36]

Answer:

vertical angles and complementary

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3 years ago

Plz help I don’t get it

nikklg [1K]

To figure out the cost per cookie, divide $2.49 by 3. The cost per 1 cookie (column 1) would be .83 cents.

To figure out the cost of 20 cookies, multiply 20 x .83 cents. The answer is 20 cookies would cost $16.60

To figure out how many cookies would cost $145,25, divide $145.25 by .83 cents. The answer is 175 cookies would cost $145.25

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3 years ago

What is X<br><br> 1+X/2=3x+4 over 9

Fynjy0 [20]

X= 2 over 9 or in decimal form 0.2222....

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3 years ago