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rodikova [14]
3 years ago
10

Solve 2x+3y-z=-4 3x+2y+2z=14 x -3z=-13

Mathematics
1 answer:
Zina [86]3 years ago
5 0

Answer:

1. x = -3/2 y+ 1/2z - 2

2. x = -2/3y + -2/3z + 14/3

3. x = 3z - 13

Step-by-step explanation:

solve for x

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Casey travels from her house directly west to the bank and then directly north from the bank to the mall. She then travels home
castortr0y [4]

Answer:

D) 40 miles

Step-by-step explanation:

First we must find the distance between the mall and the house.  The figure formed is a right triangle.  The length of the side from the mall to the house forms the hypotenuse of the triangle.  We can use the Pythagorean theorem to find the length:

a² + b² = c²

The two legs of the triangle, a and b, are 15 and 8:

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225 + 64 = c²

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Take the square root of each side:

√289 = √(c²)

17 = c

This makes the total distance

15+8+17= 40 miles

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His salary is $5.400.00

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3 years ago
A group of friends share 32 cookies.
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Answer:

8

Step-by-step explanation:

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Why does a square with an area 20² not have a whole number side length.
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Answer:

This is because the number '20' is not a perfect square.

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