Answer:
1
Step-by-step explanation:
Correct question: 2x2 - 5x - 3 / 4x2 + 12x + 5 divided by 3x2 - 11x + 6 / 6x2 + 11x - 10.
As given: 
Solving it by using quadratic equation.
= 
= 
To divide fraction take the reciprocal of divisor and multiply the dividend.
= 
We solve it to get 1 as it cancel fraction on both side.
Answer is 1.
The expression you typed has only two solutions. "Graphing" it would simply be placing two dots at the solutions, specifically the two spots where the curve would have touched the x axis...
Answer:
a. 99.7%
b. 68%
Step-by-step explanation:
The empirical rule for approximately symmetrical and bell-shaped distributions states that:
68% of the data are among the values (means - sd) and (means + sd)
95% of the data are among the values (means - 2*sd) and (means + 2*sd)
99.7% of the data are among the values (means - 3*sd) and (means + 3*sd). So that,
68% of the data are among the values (180 - 8) = 172 and (180 + 8) = 188
95% of the data are among the values (180 - 16) = 164 and (180 + 16) = 196
99.7% of the data are among the values (180 - 24) = 156 and (180 + 24) = 204