Ask question

Ask question

All categories

4 years ago

7

Select the correct answer from each drop-down menu. In the figure, line segment AB is parallel to line segment CD. The measure o

f angle C is degrees, and the measure of angles D is degrees.

1 answer:

victus00 [196]4 years ago

3 0

<h3>Answer:</h3>

∠C = 40°

∠D = 75°

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

AB ║ CD, so AD and BC are transversals. The angle pairs (A, D) and (B, C) are "alternate interior angles", hence congruent.

∠C = ∠B = 40°

∠D = ∠A = 75°

You might be interested in

-10. represents 10 seconds before the runner finish his first lab 10 represents 10 seconds after the runners finish his first la

slavikrds [6]

Answer:

B

Step-by-step explanation:

If -10 is 10 seconds before he finishes his first lap, and 10 is 10 seconds after he finishes his first lap, whats in the middle of that?! 0 of course, so thats when he finishes his first lap.

8 0

3 years ago

Read 2 more answers

Awenser this fast it has to have a greater sign in it

rosijanka [135]

Step-by-step explanation:

25 1/2 = 51/2

1 1/2 = 3/2

51/2 / 3/2 = 17

therefore,

b >15

3 0

3 years ago

What is the answer to the system of equations problem<br> 3x=2y+10<br> 9y=3x-7

Gemiola [76]

Solving:

$\left \{ {{3x = 2y + 10} \atop {9y = 3x-7}} \right.$
<span>Organize by putting the unknowns left and right the numbers without letter, changing the signal when changing sides.
</span> $\left \{ {{3x-2y=10\:(I)} \atop {-3x+9y=-7\:(II)}} \right.$
<span>Eliminate opposites (+ 3x and -3x)
</span> $\left \{ {{\diagup\!\!\!\!3x-2y=10} \atop {-\diagup\!\!\!\!3x+9y=-7}} \right.$
$\left \{ {{-2y=10} \atop {9y=-7}} \right.$
----------------------------
$7y = 3$
$\boxed{y = \frac{3}{7} }$

<span>Now substitute the found value "y" in the first equation:
</span> $3x-2y=10\:(I)$
$3x-2* \frac{3}{7} =10$
$3x- \frac{6}{7} = 10$
$\frac{21x}{\diagup\!\!\!\!7} - \frac{6}{\diagup\!\!\!\!7} = \frac{70}{\diagup\!\!\!\!7}$
$21x - 6 = 70$
$21x = 70 + 6$
$21x = 76$
$\boxed{x = \frac{76}{21} }$

Answer:
$(x,y) = ( \frac{76}{21} , \frac{3}{7} )\end{array}}\qquad\quad\checkmark$

<span>
Taking the truth proof
</span>
$3x - 2y = 10\:(I)$
$3* \frac{76}{21} - 2* \frac{3}{7} = 10$
$\frac{228}{21} - \frac{6}{7} = 10$
$\frac{1596-126}{147} = 10$
$\frac{1470}{147} = 10$
$10 = 10\:(TRUE)$

8 0

3 years ago

I need help on these two pls

Y_Kistochka [10]

Answer:

Much larger than 1 for both of them

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

When a national sample of heights of kindergarten children was? taken, a student was told that he was in the 20th percentile.

Nutka1998 [239]

Answer:

this question doesnt make sense as its like half of it

6 0

3 years ago