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2 years ago

Use substitution to solve the linear system of equations.

1 answer:

3 0

I got the answer by graphing the following linear system of equations. And, finding where both lines intersect, is how you find the solution.
The solution is plotted at (-6, -8).
So, your answer is C.

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Question 5 of 15

Licemer1 [7]

<h3>Isolate y on both equations then equate </h3>

x²-3x+2y=-4
2y=-x²+3x-4
y=-x²/2+3/2x-2

Now you can equate it with second one to get x

6 0

2 years ago

Read 2 more answers

A circle centered at the origin has a radius of 10 units. The terminal side of an angle, Theta, intercepts the circle in Quadran

Tanzania [10]

Since the circle is centered at the origin, we can use the equations
x² + y² = r²
x = r cos θ
y = r sin θ

We know y = 8 and r = 10. Solving for x
x² + 8² = 10²
x = 6

From this equation:
x = r cos θ
6 = 10 cos θ
cos θ = 6/10 = 0.6

7 0

3 years ago

There are 3 red pens, 4 blue pens, 2 Blac pens, and 5 green pens in drawer, suppose you choose a pen at random

Alenkasestr [34]

Answer:

1. 3/14

2. 2/7

3. 1/7

4. 5/14

5. 11/14

6. 9/14

Step-by-step explanation:

first get the total number of pens

3 red pens + 4 blue pens + 2 black pens + 5 green pens =

14 total number of pens

1. What is the probability that the pen chosen red?

3 red pens out of a total of 14 pens = 3/14

2. What is the probability that the pen chosen is blue?

4 blue pens out of a total of 14 pens = 4/14 -> simplified -> 2/7

3. What is the probability that the pen chosen is black?

2 black pens out of a total of 14 pens = 2/14 -> simplified -> 1/7

4. What is the probability that the pen chosen is green?

5 green pens out of a total of 14 pens = 5/14

5. What is the probability that the pen chosen is NOT red?

of the 3 red pens, 4 blue pens, 2 black pens and 5 green pens

4 blue pens, 2 black pens and 5 green pens are NOT red

4 blue pens + 2 black pens + 5 green pens =

11 total number of pens that are NOT red

11 total number of pens that are NOT red out of a total of 14 pens = 11/14

6. What is the probability that the pen chosen is NOT green?

of the 3 red pens, 4 blue pens, 2 black pens and 5 green pens

the 3 red pens, 4 blue pens, 2 black pens are NOT green

3 red pens + 4 blue pens + 2 black pens =

9 total number of pens that are NOT green

9 total number of pens that are NOT green out of a total of 14 pens = 9/14

gathmath.com

6 0

1 year ago

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Which of the following tables represents a function? (PLEASE HELP!)

frez [133]

Last one is your answer.
X cannot be repeated, but y can

3 0

2 years ago

A line passes through the point (2,8) and has a slope of -5/2

Naya [18.7K]

Y=-5/2+13

Graphing it out is probably the easiest way to learn

7 0

3 years ago

Read 2 more answers