5x + 3 = 33
Our goal is to isolate 5x and then simplify.
5x isn't currently isolated, due to +3.
Perform the opposite order of operations.
Subtract 3 from both sides.
5x = 30
Now, we must simplify (solve for x).
X is being multiplied by 5, so we need to perform the opposite order of operations in order to solve for x.
Divide both sides by 5.
You are left with:
X = 6.
I hope this helps!
Answer:
b.
Step-by-step explanation:
Answer:
Step-by-step explanation:
x² = 19x + 12
⇔ x² - 19x - 12 = 0
Calculating the discriminant :
b² - 4ac = (-19)² - 4×1×(-12) = 409
The discriminant is positive ,then the equation has two solutions.
First find the slope between the 2 points
0--2/4--4
=2/8
=1/4
Then y=1/4 x+b
Now substitute one pair of x and y into the equation
0=1/4*4+b
b=-1
So y=1/4x-1
Done!
The sum of everything is 720 degrees, because of the six sides in this figure.
We sum all angles and get 595
720 - 595 = 125
The answer is 125 degrees