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4 years ago

What is the solution to the system of equations y = -x - 5 and y = 2x + 4

Mathematics

1 answer:

Delvig [45]4 years ago

4 0

Answer:

(-3,-2)

Step-by-step explanation:

y = -x - 5

y = 2x + 4

plug in one of the y equations

(2x+4)= -x - 5

2x+4=-x-5

3x=-9

x= -3

plug in x to one of the y equations

y= -(-3) -5

y=3-5

y= -2

x= -3, y= -2

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What is the hcf of 12 45 and 75

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Answer:

HCF of 12, 45 and 75 by Prime Factorization

As visible, 12, 45 and 75 have only one common prime factor i.e. 3. Hence, the HCF of 12, 45 and 75 is 3.

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

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Select True or False for each statement. 1 4 9 + 7 6 9 is equal to 8 1 9 . 5 5 6 + 3 3 6 is equal to 8 2 6 . 4 5 8 − 2 4 8 is eq

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Answer:

(1) False

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Step-by-step explanation:

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3 years ago

Simplify the expression.<br> -5+i/2i

Lostsunrise [7]

Answer:

$\rm - \dfrac{11}{2}$

Step-by-step explanation:

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3 years ago

The sum of the interior angles of a polygon with n sides is 1980°. Find n.

natka813 [3]

Answer:

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Step-by-step explanation:

The sum of the measures of the interior angles of an n-sided polygon is

(n - 2)180

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Divide both sides by 180.

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n = 13

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3 years ago

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