Answer:
The answer is 11, I think, hope this helps!
Step-by-step explanation:
9 dollars represents 90% of the cost. Divide 9 by 0.90 to get the original price, 10 dollars
The product of (x1)^2 is 20
Answer:
love youre profile it's from Saiki K
Step-by-step explanation:
We use the factoring form becuase our c is zero and it in standard quadratic form so we rather factor than complete the square or quadratic formula since that is longer to do than just factor.
Answer:
m∠BCD = 120°
Step-by-step explanation:
Since the interior angles of a quadrilateral add up to 360°, then we get:
2x+x+2x+x=360°
6x=360°
<em>Divide both sides by 6</em>
x=60°
Since ∠BCD's value is 2x and x is equal to 60°, then ∠BCD is 120°.