Answer: 2.266666667
Step-by-step explanation: 34/15=2.266666667
Answer:
x^2 -6x + 222/25
Step-by-step explanation:
If the zeros are as above, then ;
x = 3-√3/5 or x = 3 + √3/5
Firstly, let’s represent √3/5 by b
Thus;
The two roots are ;
x = 3-b or x = 3 + b
so;
x+ b -3 and x -3-b
The quadratic equation is the product of the two
(x + b-3)(x - b -3)
x(x - b-3) + b(x -b -3) -3(x - b -3)
= x^2 -bx -3x + bx -b^2 -3b -3x + 3b + 9
Collect like terms and we are left with;
x^2 -6x -b^2 + 9
So let’s put back b = √3/5
x^2 -6x -(√3/5)^2 + 9
x^2 -6x -3/25 + 9
x^2 -6x + 222/25
Number of bikers: b
miles ridden by each biker: 50
number of miles ridden by the team: 50b
Condition: 50b ≥ 560
=> b ≥ 560 / 50
=> b ≥ 11,2
Given that b refers no number of persons it has to b an integer and b has to be at least 12
=> b ≥ 12.
If there would be 11 bikers the team only could complete 11*50 = 550 miles, so they cannot complete the required 560 miles.
Answer: b ≥ 12
If you would like to know who is the tallest, you can calculate this using the following steps:
Jackie ... j
Samuel: 5/8 inch + j = 5/8 + j = 0.625 + j
Shelly: 0.7 inch + j = 0.7 + j
Craig: 1/2 inch + j = 1/2 + j = 0.5 + j
The correct result would be: Shelly is the tallest.
7.76 to one decimal place
= 7.8
We are looking at one decimal place, in this case the number 7 after the decimal place next to 6. Any number above 5 rounds up the number in front of it. 6 is above 5 so it changes the 7 to an 8.
