10/12 - 9/12 = 1/12 is the answer. you had to change the denominator so that they are the same
Answer:
The graph in the attached figure
Step-by-step explanation:
we have
Using a graphing tool
see the attached figure
This is the equation of a vertical parabola open downward
The vertex is the point (3.25,225) (a maximum)
The zero's of the function or the t-intercepts are the points (-0.5,0) and (7,0)
The h-intercept of the function is the point (0,56)
The domain of the function are all real numbers
The range of the function ----> All real numbers less than or equal to 225
D is the correct answer:)
Answer: 0.0008 M
Step-by-step explanation: 10^-pH
10^-3.1 = 0.0008
Factors of 21={1,3,7,21}
Factors of 63={1,3,7,9,21,63}
the highest common factor (HCF) is 21.