It is choice (D)
Let's set that unknown number to x.
The first step is the difference of 3 times a number and 15 --> 3x - 15
That is no less than the square of the number ' '
Now combine them
Hope that helped!
Answer: False
Nothing is 100% certain no matter how sure it seems. This is especially true with statistics. There's always going to be some amount of error. The goal is to minimize the error as much as possible in the best cost-effective manner.
The solution is and
Step-by-step explanation:
The expression is and
Using substitution method we can solve the expression.
Let us substitute in
Expanding and simplifying the expression, we get,
Let us use the quadratic equation formula to solve this equation,
Thus, and
Substituting y-values in the equation , we get the value of x.
For ⇒
For ⇒
Thus, the solution set is and
To find the answer, I would multiply 20 by .34 and get 6.8. I would then add 6.8 to 20 and get 26.8. The cost of the DVD is $26.80.