2 years ago

2x+y=13 x+4y=17 Solve with elimination

Mathematics

1 answer:

OverLord2011 [107]2 years ago

3 0

Answer:

X=5 Y=3

Step-by-step explanation:

2x+y=13

2(x+4y=17)

Both the 2x's cancel out which leaves you with -3y=-21 which equals 3. Then plug the Y back in to get 5 for X.

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The edge of a cube measures 3.5 x 10 ^ -2 meters. What is the volume of the cube in cubic meters? WRITE Your ANSWERS IN SCIENTIF

Crank

The volume of given cube is: $4.29 * 10^{-5}$ cubic meters

Step-by-step explanation:

Volume of a cube is given by:

$V = a^3$

Given

Edge of the cube = $3.5*10^{-2}$

Putting the value of edge

$V = (3.5*10^{-2})^3\\V = 42.875 * (10^{-2})^3\\V = 42.9 * 10 ^{-2*3}\\V = 42.9 * 10^{-6}\\V = 4.29 * 10 * 10 ^{-6}\\V = 4.29 * 10^{-5}\ cubic\ meters$

The volume of given cube is: $4.29 * 10^{-5}$ cubic meters

Keywords: Volume, cube, scientific notation

Learn more about scientific notation at:

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