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Mice21 [21]
3 years ago
15

What is the equation of the line perpendicular to 2x + y = 0 that passes through the point (2, 2)?

Mathematics
1 answer:
Trava [24]3 years ago
8 0
2x + y = 0
y = -2x 
slope = -2

Option C:
<span>y = 1/2x + 1
</span>Slope = 1/2 (perpendicular)

At (2,2), x = 2
y = 1/2(2) + 2 = 2 

Answer C
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3 0
3 years ago
Which of the following represents a valid first step to solving this system of equations using the substitution method?
Phoenix [80]

Answer:

2(2y - 1) - y = 7

Step-by-step explanation:

I guess the 2 equations are

2x - y = 7

x = 2y - 1

substitution message that you use one equation to express one variable by the other, and then you use that in the other equation to get one equation for one variable. then you solve for that, and use that result in the first equation to since for the second variable.

the equations are already defined that way, that the second equation directly defines x as an excision of y.

so, this needs to be used then in the first equation.

and that makes

2(2y - 1) - y = 7

the correct first step.

7 0
2 years ago
Without graphing the equations, decide whether the system has one solution, no solution, or infinitely many solutions.
lbvjy [14]
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4 0
2 years ago
Nathalie has one large bowl of popcorn. She invite 3 friends over to watch a movie. Her brother takes 1/5 of the popcorn for him
OLEGan [10]

Answer:

Each friend gets  \frac{1}{5}  of the popcorns.

Step-by-step explanation:

Nathalie's brother takes 1/5 of the popcorn for himself.

so there is ( 1 - 1/5)

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including Nathalie and her 3 friends, there are (3 + 1) = 4 persons.

So, each friend gets

\frac(4}{4 \times 5}

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8 0
3 years ago
Read 2 more answers
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Sveta_85 [38]

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