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irga5000 [103]
2 years ago
6

Is ABCD a parallelogram?

Mathematics
1 answer:
spayn [35]2 years ago
7 0

Answer:

Yes

Step-by-step explanation:

We know that because AB and CD are parallel,

  • angles A and D are supplementary
  • angles B and C are supplementary

As supplements of congruent angles are congruent, this means angle B is congruent to angle C.

Thus, ABCD is a parallelogram because it is a quadrilateral with 2 pairs of opposite congruent angles.

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I don’t know , help you
Sphinxa [80]
A negative sign (-)
4 0
3 years ago
What is the y intercept of 3x62-6x+21=0
TiliK225 [7]

Answer:

(0, 207)

Step-by-step explanation:

We calculate y-intercept by substituting 0 for x.

The equation becomes:

3*62-6*(0)+21=207

y intercept is (0, 207)

3 0
3 years ago
Can someone please help me I really need help help me thank you
harkovskaia [24]

Answer:

<h2><em><u>A to C = 25 </u></em></h2><h2><em><u>A to B = 13 </u></em></h2><h2><em><u>C to B = 37 </u></em></h2><h2><em><u></u></em></h2>

Step-by-Step Explanation:

<em><u>Perimeter</u></em> = 75

<em><u>Sides:</u></em>

2x + 3

3x + 4

2x - 9

<h2 /><h2><em><u>1. Equal the sides added together to the perimeter</u></em></h2>

75 = 2x + 3 + 3x + 4 + 2x - 9

<h2><em><u>2. Simplify Like terms</u></em></h2>

2x + 3 + 3x + 4 + 2x - 9  = 7x - 2

<h2><em><u>3. Place the equation back together</u></em></h2>

75 = 7x - 2

<h2><em><u>4. Isolate the variables and numbers</u></em></h2>

75 = 7x - 2

+2        +2

77 = 7x

<h2><em><u>5. Simplify the equation</u></em></h2>

77 = 7x

/7     /7

<h2><em><u>11 = x </u></em></h2>

<h2><em><u>6. Substitute the value of x into the side lengths.</u></em></h2>

2x + 3 = 2(11) + 3 = 22 + 3 = <em><u>25</u></em>

3x + 4 = 3(11) + 4 = 33 + 4 = <em><u>37</u></em>

2x - 9 = 2(11) - 9 = 22 - 9 = <em><u>13</u></em>

5 0
3 years ago
What percent of 60 is 15
ozzi
Well we know that 
15/60 can be reduced to 1/4 
And 1/4 can be turned into a percent as 25% 

So your answer is 25% 

Good Luck! :)
3 0
3 years ago
Read 2 more answers
The floor of the school art closet is be tiled. The closet shaped like a parallelogram. The parallelogram has a base of 16.5 fee
son4ous [18]
The area of the parallelogram is given by:
 A = b * h
 Where,
 b: base
 h: height
 Substituting values we have:
 A = (16.5) * (6)
 A = 99 feet ^ 2
 The number of packages will be:
 N = 99/5
 N = 19.8
 Rounding:
 N = 20
 Answer:
 
It will be needed 20 packages of tile to tile the music room floor
3 0
3 years ago
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