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True [87]
2 years ago
9

The coordinates of the vertices of​ quadrilateral ABCD​ are A(−4, −1), B(−1, 2), C(5, 1), and D(1, −3).

Mathematics
2 answers:
NikAS [45]2 years ago
7 0

Answer:

The slope of ​AB¯¯¯¯¯​ is 1, the slope of ​ BC¯¯¯¯¯ ​ is -1/6, the slope of CD¯¯¯¯¯ is 1, and the slope of ​ AD¯¯¯¯¯ ​ is -2/5. Quadrilateral ABCD is not a parallelogram because only one pair of opposite sides is parallel.

Step-by-step explanation:

Verified correct with test results.

serg [7]2 years ago
3 0

Answer:

Sorry this is late, but it could help future people. Answers are in the picture.

Step-by-step explanation:

I took the quiz. :)

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5(3x + 9) – 2x = 15x – 2(x - 5)
Delvig [45]

Answer:

No solution

Step-by-step explanation:

6 0
3 years ago
What is the x-intercept of the line with this equation 13x+y=−15 ? Enter your answer in the box. ( , 0)
Nastasia [14]

Answer:  The required x-intercept of the given line is \left(-\dfrac{15}{13},0\right).

Step-by-step explanation:  We are given to find the x-intercept of the line with the following equation :

13x+y=-15~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

We know that

x-intercept of a line is a point on the line where the line crosses the x-axis, that is y co-ordinate is 0.

Substituting y = 0 in equation (i), we get

13x+y=--15\\\\\Rightarrow 13x+0=-15\\\\\Rightarrow 13x=-15\\\\\Rightarrow x=-\dfrac{15}{13}.

Thus, the required x-intercept of the given line is \left(-\dfrac{15}{13},0\right).

4 0
3 years ago
How do you add fractions
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6 0
2 years ago
Read 2 more answers
A=10,b=49.5,c=20<br><br><br> answer choices are yes or no
stira [4]

Well, if it is based off the Pythagorean Theorem, here is the formula: a squared plus b squared equals c squared. It also works with c squared minus a squared equals b squared. I hope this helps! Please mark me brainliest!

5 0
3 years ago
What is the slope of the line that contains the points (1 -1) and (-2 8)
wel

The slope of the line that contains the points (1 -1) and (-2 8) is -3

Step-by-step explanation:

Slope measures the steepness of a line. It is the ratio of vertical change to horizontal change. If the line increasing, the slope is positive and if the line is decreasing the slope is negative. If the line is horizontal slope is zero and if the line is vertical slope is undefined.

Equation for slope = (y2-y1)/(x2-x1)

here y2= 8

x2=-2

y1=-1

x1=1

Substituting the following,

slope = (8+1)/(-2-1)

=9/-3

=-3

hence the slope is -3

8 0
3 years ago
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