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spin [16.1K]
2 years ago
12

Determine whether each quadrilateral is a parallelogram. Justify your answer.

Mathematics
1 answer:
Lina20 [59]2 years ago
4 0

Answer:

4. Parallelogram

5. Parallelogram

6. Parallelogram

Step-by-step explanation:

  • 4. This is a parallelogram because the longer sides are parallel to each other and the shorter sides are also parallel to each other. Hence, this is a parallelogram.
  • 5. This is a parallelogram because it's angles are the same to the opposite angles. Hence, this is a parallelogram.
  • 6. This is a parallelogram because the longer sides are parallel to each other and the shorter sides are also parallel to each other. Hence, this is a parallelogram.

Hoped this helped.

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Carey bought 8 tickets for $52 how many tickets could she buy for $90?
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Answer:

73.13

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Solve the systems of equations 6x+3y=9 2x+3y=1
patriot [66]
Solve by elimination.
The goal is to cancel out one of the variables in order to easily solve for the other variable.

Do this by changing the equations so that the coefficients of either x or y add up to 0.

Notice the coefficients of y are 3 and 3, if we make one of them negative then they add up to 0. 3+ (-3) = 0

Multiply 2nd equation by -1.

6x +3y = 9
-2x -3y = -1
__________
4x +0y = 8

Solve for x
4x = 8
x = 8/4 = 2

Plug x=2 back into one of original equations to find y.
---> 2(2) + 3y = 1
---> 4 + 3y = 1
---> 3y = -3
---> y = -1

Therefore solution is (2,-1)
7 0
3 years ago
Christina is saving for a new tablet it cost $70 including tax she has already saved $35 how much more does she need to save
igomit [66]

Answer:

She needs to save $35.

Step-by-step explanation:

To find out how much more she needs, you take $70 and minus $35

70-35=35

Hope this helps!

8 0
3 years ago
Line parallel to y=-3x 4 and goes through (-4,6)
Eduardwww [97]
Y=-3x+4
Gradient, m= -3
Parallel lines have equal gradients;
So, equation II,
y=mx+c
y=-3x+c
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6=-3(-4)+c
6=12+c
6-12=c
c=-6
y=-3x-6
7 0
3 years ago
11. Write the equation of a line in point-slope form
Vika [28.1K]

Answer:

Excuse me, wrong answer did not mean to type that. It would be C.

Step-by-step explanation:

This is because C. y - 5 = -2 (x+9) is an inequality. But, because of the slope of -2 passing through the point (-5, 9), it would be x - 9. So, C.

5 0
3 years ago
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