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Y_Kistochka [10]

3 years ago

14

Which of the following is not an attribute of parallelograms? A)Opposite sides are parallel. B)Consecutive angles are supplement

ary. C)Diagonals bisect each other. D)Diagonals are congruent. My answer is D..

1 answer:

AysviL [449]3 years ago

8 0

Answer:

the answer is D

Step-by-step explanation:

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Determine if JK and LM are parallel ,perpendicular, or neither. J(13,-5) K(2,6) L(-1,-5) M(-4,-2)

barxatty [35]

Answer:

The lines are parallel

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Remember that

If two lines are parallel, then their slopes are the same

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

step 1

Find the slope JK

we have

$J(13,-5),K(2,6)$

substitute the values

$m=\frac{6+5}{2-13}$

$m=\frac{11}{-11}$

$m_J_K=-1$

step 2

Find the slope LM

we have

$L(-1,-5),M(-4,-2)$

substitute the values

$m=\frac{-2+5}{-4+1}$

$m=\frac{3}{-3}$

$m_L_M=-1$

step 3

Compare the slopes

$m_J_K=-1$

$m_L_M=-1$

so

$m_J_K=m_L_M$

therefore

The lines are parallel

7 0

3 years ago

Which statement best describes how to determine whether f(x) = 9 – 4x2 is an odd function?

satela [25.4K]

Odd, even or neither:
<span>if </span>
<span>f(-x) = f(x) => even </span>
<span>f(-x) = -f(x) => odd

</span>

4 0

2 years ago

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Help me. Two numbers have a sum of 30. Half of their difference is 7. Find the numbers.

sergeinik [125]

Answer:

the correct answers are 22 and 8

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2 years ago

In mrs.baes class only 15 boys go to the bathroom at a time 13 girls at a time.there is 50 boys and 20 girls how boys altogeter

Stella [2.4K]

70 kids altogether because 50+20 is 70

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2 years ago

Find the labeled angles

ipn [44]

Answer:

X = 25, Angles are 65 degrees

Step-by-step explanation:

3x-10 = x+40

2x=50

x=25

8 0

3 years ago