The second (-35 + 21x) and the fourth one (21x-5) are true. The rest of them are false.
Answer:
Point E divides each diagonal in half. It is the midpoint of AC and BD . This means the two diagonals bisect each other at point E.
Step-by-step explanation:
PLATO
Answer:
score = 63
Step-by-step explanation:
1. To write the proportion take the score of the test over the number of points and set it equal to the percent over 100
score 90
----------- = -----------
70 100
Using cross products
100 * score = 90*70
100 score = 6300
Divide by 100
100/100 * score = 6300/100
score = 63
Explanation:
Distributive property: → 
Expand equation.

Then, multiply 6*4.


Add by similar elements.

Don't forget to used variable with letter/symbol.

Hope this helps!
Thank you!
Have a great day!
-Charlie