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3 years ago

Solve the system of linear equations by graphing. y = x +2 y = -x -4 The solution is

Mathematics

2 answers:

Mnenie [13.5K]3 years ago

8 0

Answer:

Solution: (-3,-1)

7nadin3 [17]3 years ago

7 0

Answer:

x = -3

Step-by-step explanation:

x + 2 and -x-4 is equal, because they are both y

we want to move the variables to one side and the numbers to the other side

x+x = 2x, and -4-2 = -6

so 2x = -6

and x = -3

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The surface area for a rectangular prism with a square base is SA=2s2+4sh. What is the surface area if s=3 and h=5?

Zigmanuir [339]

Answer:

The surface area is 78 unit square.

Step-by-step explanation:

Given : The surface area for a rectangular prism with a square base is $SA=2s^2+4sh$ .

To find : What is the surface area if s=3 and h=5?

Solution :

The surface area for a rectangular prism with a square base is $SA=2s^2+4sh$

Substitute, s=3 and h=5

$SA=2(3)^2+4(3)(5)$

$SA=2\times 9+4\times 15$

$SA=18+60$

$SA=78$

Therefore, The surface area is 78 unit square.

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Step-by-step explanation:

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Alex Ar [27]

Answer:

Step-by-step explanation:

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3 years ago

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Determine intervals y= -x^3 + 3x^2 -2

motikmotik

Answer:

(2,2) and (0,-2)

Step-by-step explanation:

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3 years ago

Dexter was asked to mix the punch for his sister’s birthday party. He has to figure out how much water and pure concentrate to a

Zigmanuir [339]

Answer:

6 liters

Step-by-step explanation:

Let x represent the amount of pure concentrate used to make the punch. Then the total amount of concentrate in the punch is ...

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