Answer: 6/7
Step-by-step explanation:
If the pen is not red, it must be either black or blue.
Therefore, the probablity is (6+6)/(6+6+2)
= 12/14
= 6/7
Answer: y=9x
Step-by-step explanation:
Answer:
15.75 or 63/4
Step-by-step explanation:
Hello from MrBillDoesMath!
Answer: x^2 - 6.5x + 10.5 = 0
Discussion:
If the roots are 3 and 3.5, then the quadratic equation is
(x -3 ) ( x - 3.5) = 0
or
x * (x - 3.5) - 3 (x - 3.5) = 0
or
X^2 - 3.5X - 3X + 3(3.5) = 0
or
x^2 - 6.5x + 10.5 = 0
Thank you,
MrB
Answer:34 13
Step-by-step explanation:
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