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Ksenya-84 [330]
3 years ago
15

Evaluate -2x^2 2y, if x = -3 and y = -1.

Mathematics
1 answer:
Paul [167]3 years ago
7 0

ANSWER is 16.

look at the photo to see the step by step equation :)

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Teri scored 64 points in the first 8 games she played in. she scored the same number of points in each game. how many points did
Rufina [12.5K]
You can find this by doing: 64 points/ 8 games.
Therefore, she scored 8 points a game.
4 0
3 years ago
Read 2 more answers
X − (y − y)= for x = 3 and y = 6
dusya [7]

Answer:

3

Step-by-step explanation:

x − (y − y)

3-(6-6)

3-0

3

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you are working to save money for a trip you need to save at least 1000 dollars if you already have 350 saved and you make $8 an
4vir4ik [10]
$1000 dollars is how much you need to pay for the trip.
You already have $350.
$1000 - $350 = $650.  So, you need to make $650 more.
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8 0
3 years ago
Determine the equation of the line that is perpendicular to the line y = 3x + 4 and passes through the point (6, 2).
fomenos

Answer:

y = -1/3x + 4

Step-by-step explanation:

Perpendicular lines: Their gradients are reciprocals.

This means:

  • -1 ÷ Gradient 1 = Gradient 2
  • Gradient 1 * Gradient 2 = -1

Gradient of the given equation is 3.

-1 / 3 = -1/3

Gradient of the equation we're finding is -1/3

y = -1/3x + c

Substitute the coordinates in to find the value of c

2 = -1/3(6) + c

2 = -2 + c

2 + 2 = c

4 = c

y = -1/3x + 4

3 0
3 years ago
When she subtracts 4 from both sides, Startfraction one-half EndFraction x equals negative StartFraction one-half EndFraction x.
timama [110]

The value of x in the equation 1/2x = -1/2x when 4 is subtracted from both sides is 0(not defined)

Subtraction of fraction

Startfraction one-half EndFraction x equals negative StartFraction one-half EndFraction

1/2x = -1/2x

  • Subtract 4 from both sides

1/2x - 4 = -1/2x - 4

(x-8) / 2 = (-x-8) / 2

(x - 8) / 2 = (-x-8) / 2

  • cross product

2(x - 8) = 2(-x - 8)

2x - 16 = -2x - 16

2x + 2x = -16 + 16

4x = 0

Learn more about fraction:

brainly.com/question/11562149

#SPJ1

7 0
2 years ago
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