4x²-12x+9=5
4x²-12x+4=0
x= 12±√(144-4*4*4) / 2*4
x= 12 ± √(144-64) / 8
x=12±√80. /. 8
x= 12+4√5. /8
x=3±√5 / 2. C and E
By the law of cosines, the angle
satisfies
which reduces to
which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
Answer:
The best estimate is greater than 1/2 but less than 3/4
Step-by-step explanation:
If you multiply 1/4 by 3/3 (which is also 1), you can change the denominator without changing the value. So 1/4 is equal to 3/12.
Since keith has 11/12 hours to play, and he has already played 3/12 hours, subtract 3/12 from 11/12 to get 8/12 hours. This is how much time he has left to play.
If you simplify 8/12 hours, you get 2/3 hours.
So the best estimate would be: greater than 1/2 but less than 3/4.
Answer:
vvv
Step-by-step explanation:
2,4,6,8,10
Pattern Rule:Add 2
1,2,4,8,16
Pattern:Multiply by 2
Sorry these were simple.