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Liula [17]
4 years ago
14

PLEASE HELP !!!!!!!!!!​

Mathematics
1 answer:
Grace [21]4 years ago
3 0

Answer:

y = -0.5x

Step-by-step explanation:

To write the equation of the line, use the formula y = mx where m is the slope. Find the slope by subtracting the x and y coordinates. Use the formula below:

m = \frac{y_2-y_1}{x_2-x_1} = \frac{2--1}{-4 - 2} = \frac{3}{-6} = -\frac{1}{2}

Since the slope is -1/2 or -0.5, this means the equation of the line is y = -0.5x.

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Solve system if equations
Alexandra [31]

Answer:

(2, 9)

x = 2

y = 9

Step-by-step explanation:

To solve this system, we can either use substitution or graph it. I will be showing how to graph it.

To solve by graphing, we graph both of the equations and find the point at which the lines intersect.

[Graph]

-> See attached

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

7 0
3 years ago
Determine which of the lines, if any, are parallel or perpendicular. Explain.
hodyreva [135]
Answer:
line a and b are parallel
line c is not perpendicular because it is not 3

step-by-step explanation:
if the slope is the same it is parallel
if the slope is the complete opposite it is perpendicular
lines a and b are parallel with a slope of -1/3
(0, 5) (3, 4)
m = 4 - 5 / 3 - 0
m = -1 / 3
m = -1/3
(-1, 1) (2, 0)
m = 0 - 1 / 2 + 1
m = -1 / 3
m = -1/3
line c is perpendicular to lines a and b the slope is
(0, 0) (2, 5)
m = 5 - 0 / 2 - 0
m = 5/2
2.5
8 0
3 years ago
I NEED THE ANSWER IN THE NEXT MINUTE
OverLord2011 [107]

Answer:

508.68

*sorry if this is late

Step-by-step explanation:

Divide 36 by 2 to get radius

Multiply 18 by itself to get 324

Multiply 324 by 3.14 to get the area of a circle

Divide it by 2 to get the area of the semi circle

7 0
3 years ago
Which expression is equivalent to 8a + 14?<br> 2(2a + 12)<br> 4(4a + 10)<br> 4(2a+8)<br> 2(4a +7)
inessss [21]

Answer is D, 2(4a + 7.)

A is equivalent to 4a + 24.

B is equivalent to 16a + 40.

C is equivalent to 8a + 32.

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

7 0
4 years ago
Answer? i rlly dont know
Gnesinka [82]

Answer:

C

Step-by-step explanation:

i am smart

3 0
3 years ago
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