Answer:
Step-by-step explanation:
xº=yº=90º they are perpendicular to each other.
51º+zº=180 angle in a straight line
zº=180-51
zº=129º
Answer:
Plz I don't understand everything
Answer:
20 + 35x
Step-by-step explanation:
We have the expression 5(4 + 7x) and are asked to distrbute it.
When distributing, it's very simple, all you have to do is multiply the number outside the parenthesis with the numbers inside the parenthesis.
Therefore :
(5(4) + 5(7x))
20 + 35x
For this item, we represent the number of cars that the salesman has left to sell by the variable x. The sum of this variable and 68 should not be more than (or be at least) 125. Mathematically expressing the statement above,
x + 68 ≤ 125
(7x6) + (7x3) = c. this is the answer