Answer:
x =(8-√176)/8=1-1/2√ 11 = -0.658
Step-by-step explanation:
Answer:
76.86
Step-by-step explanation:
Probability = Possible outcome ÷ total outcome
Probability = 455 ÷ (455 + 157) = 0.768581081081
Answer in percent = 0.768581081081 × 100 = 76.86
Answer:
C. 55s
Step-by-step explanation:
I'll refer to Wyndham as W and Michael as M.
Also, we will be assuming constant speed for both runners.
So, first of all, W ran with a speed of 8m/s;
400m/50s = 8 m/s
M ran with speed 9.2635.... m/s;
400m/43.18s = 9.26.... m/s
The difference is 1.26.... m/s, meaning every second, the distance between M and W would increase by 1.26.....m, starting from 0 at the start line;
9.26... - 8 = 1.26....
So, to find the desired distance, we simply multiply 1.26... by 43.18;
1.26... × 43.18 = 54.560....
(Rounded up to 55s)
Answer:
x = -1 + sqrt(78)/6
x = -1 - sqrt(78)/6
Step-by-step explanation:
Zeros are the x-values where the function is 0
f(x) = 0
6x² + 12x - 7 = 0
a = 6, b = 12, c = -7
Using Quadratic formula:
x = [-12 +- sqrt(12² - 4(6)(-7)]/2(6)
x = [-12 +- sqrt(312)]/12
x = [-12 + 2sqrt(78)]/12
x = -1 +- sqrt(78)/6
(3)
as 4x + -3^3 + 212
(Coefficient of the leading x is 4 and the power of the highest power term is 3) (it isn’t in correct polynomial form, however)
