3 years ago

Which of the filling units are units of length

1 answer:

3 0

Answer:

The SI unit for length is the meter (abbreviated m); its definition has also changed over time to become more accurate and precise. The meter was first defined in 1791 as 1/10,000,000 of the distance from the equator to the North Pole.

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Find roots of 4x^2-2x+9

Korolek [52]

discriminant= b^2-4ac= (-2)^2-4(4)(9)= -140<0

since discriminant <0, graph is always positive, x has no real roots

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3 years ago

Solve the equation using the distributive property and properties of equality. Negative 5 (a + 3) = negative 55 What is the valu

ivann1987 [24]

Answer:

negative 14

Step-by-step explanation:

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ycow [4]

I believe $241.50 would be your answer

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3 years ago

What is the volume of the metal in this heavy-duty pipe? (It is not drawn to scale and the inside of the pipe is empty space.) S

Jlenok [28]

The volume of the pipe is about 282.6 cubic feet.

First, we need to find the area of each circular cross section and subtract them to find the width of the pipe. The area of a circle is pi(r^2).

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28.26 - 12.56 = 15.7

The width of the pipe is 15.7. Now, multiply that by 18 to find the volume.
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3 years ago

If mn, solve for x. (3x + 9) (x + 21)

Sloan [31]

3x. + 63x + 9x + 189

Step-by-step explanation:

Use distributive law, in other words multiply the first bracket terms by the second bracket terms 

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3 years ago