Answer:
a) f(x) = 5x - 3
b) f(x) = 23x + 12
Step-by-step explanation:
Simply replace the variable y with f(x)
Exterior angle c = the sun of the two opposite interior angles a and b.
10x -23 = 5x -17 + 7x -26
Combine the right side:
10x -23 = 12x -43
Add 43 to both sides:
10x +20 = 12x
Subtract 10x from both sides:
20 = 2x
Divide both sides by 2
X = 10
Now you have x replace it in the equation for A:
A = 5x -27 = 5(10) -27 = 50-27 = 23
Angle A = 23 degrees.
Answer:
c (6)
Step-by-step explanation:
by the corresponding angles postulate, the angle above 20x-5 will be 65°.
20x - 5 + 65 = 180 <em>they are supplementary angles (angles that add up to 180°)</em>
20x + 60 = 180
20x = 120
x = 6
Answer:
D-70
Step-by-step explanation:
It is a combination C(8,4)
Answer: B
Step-by-step explanation: Explanatory means to explain, or provide information. Argumentative tries to prove a claim is correct
I hope this helps you! :)