Answer:
a) a + c = 90
d) a + b + c + 30 = 180
e) The angles marked a and b are vertical
f) The angles marked a and c are complementary.
Step-by-step explanation:
A complementary angle is and angle that has a sum of 90 degrees. A vertical angle is 2 angles facing each other, that are completely identical. 180 degrees is the sum of a strait line. 90 degrees is a right angle.
Hope this helps! Have a wonderful rest of your day!
<em>-kiniwih426</em>
Answer:
f = 1
Step-by-step explanation:
-f + 2 + 4f = 8 - 3f
-f + 4f + 3f = 8 - 2
6f = 6
f = 6/6
f = 1
Hope it helps!!
Answer:
D) -10 and -11
Step-by-step explanation:
Answer:
by sum and product method for quadratic equation.
From the second we can find:
y=7x-23
Now using this value of y in the first equation you have:
14x-2(7x-23)=46
14x-14x-46=46 which is always true meaning that there are infinitely many solutions.
Basically both equations describe the same line so every point on the line is a solution...
