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Helen [10]
3 years ago
12

What is the solution to this system of equations?

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

Answer:

D.

x = 3, y = -7

Step-by-step explanation:

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The coordinates of A, B, and C in the diagram are A(p,4), B(6,1), and C(9,q). Which equation correctly relates p and q?
Temka [501]

ANSWER

p  + q= 7

EXPLANATION

We determine the slope of each line using the slope formula;

m =  \frac{y_2-y_1}{x_2-x_1}

The slope of BC is

=  \frac{ q - 1}{9 - 6}

\frac{ q - 1}{3}

The slope of AB is

= \frac{1 - 4}{6 - p}

=  - \frac{3}{6 - p}

The two lines are perpendicular so the product of their slopes is -1.

- \frac{3}{6 - p}   \times \frac{ q - 1}{3}  =  - 1

This implies that,

\frac{q - 1}{6 - p}  =  1

q - 1=6 - p

q + p = 6 + 1

p  + q= 7

.

4 0
3 years ago
Read 2 more answers
GIVING BRAINLIEST!
ahrayia [7]

Answer:

189in3

Step-by-step explanation:

4 0
3 years ago
What irrational number is between 7.7 - 7.9
Dahasolnce [82]

Answer:

7.8

Step-by-step explanation:

6 0
3 years ago
What equation in slope-intercept form represents the line that passes through the points
Mumz [18]
<h2>Answer:    y = - x + 1 </h2>

<h3>Step-by-step explanation: </h3>

        For us to write the equation for this line, we need to (1) find the slope of the line, and (2) use one of the points to write an equation:  

       The question gives us two points, (-3, 4) and (2, -1), from which we can find the slope and later the equation of the line.

 

<u>Finding the Slope</u>    

The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)    

                                         =  (4 - (- 1)) ÷ ((-3) - 2)  

                                         =   - 1  

<u>Finding the Equation</u>

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:  

                                 ⇒  y - (-1) =  - 1 (x - 2)

                                        y + 1 = - (x - 2)

we could also transform this into the slope-intercept form ( y = mx + c) by making y the subject of the equation:  

                                   since  y + 1 = - (x - 2)                                                    

                                                ∴  y = - x + 1

<em>To test my answer, I have included a Desmos Graph that I graphed using the information provided in the question and my answer.</em>

8 0
3 years ago
Help i forgot how to do this
Romashka [77]

Answer:

a=3/5 or 0.6

Step-by-step explanation:

a-8/5-2/3a=-7/5

Step 1: Multiply both sides

15a-24-10a=-21

Step 2: Combine like terms

5a-24=-21

Step 3: Calculate and divide both sides by 5

5a=3

Solution:

a=3/5 or 0.6

5 0
3 years ago
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