Answer:
r = -2/3
Step-by-step explanation:
-3(r-1/3)=3
Divide each side by -3
-3/-3(r-1/3)=3/-3
r - 1/3 = -1
Add 1/3 to each side
r - 1/3 +1/3 = -1 + 1/3
Get a common denominator
r = -3/3+ 1/3
r = -2/3
No the don't add up to one eighty I'm pretty sure if not tell me
If Ralph can make a one way journey to work with 1/16 of a tank of gas you have to double this to make the full journey.
You could also add 1/16 and 1/16 together
1/16+1/16=2/16
He would 2/16 of a tank of gas to get to work and back.
Answer:
m∠CDE = 60°
Step-by-step explanation:
Given that the arc at the center = 2 times the arc at the circumference, we have;
Angle at the center = arc CE = 120°
Whereby the angle at the circumference is given as m∠CDE and it is opposite the circle arc CE
We note that m∠CDE is the acute angle between chord DC and DE
Therefore, we have;
Angle at the center = 120° = 2 times the arc at the circumference = 2 × m∠CDE
120° = 2 × m∠CDE
m∠CDE = 120/2 = 60°
Therefore the angle of m∠CDE is equal to 60°.
Answer:
f(-3) = -4
Step-by-step explanation:
f(x) = -2x² - 3x + 5
f(-3) = -2(-3)² - 3(-3) + 5
f(-3) = -2(9) + 9 + 5
f(-3) = -18 + 9 + 5
f(-3) = -9 + 5
f(-3) = -4