The quadratic equation f(x) = - x² + 3 · x + 13 evaluated at x = 10 is equal to - 57.
<h3>How to find the value associated with a quadratic equation</h3>
In this case we have a quadratic equation (f(x) = - x² + 3 · x + 13) that has to be evaluated at a value of x, that is, x = 10. Now we proceed to show the solution of the exercise step by step:
- x² + 3 · x + 13, x = 10 Given
- 10² + 3 · 10 + 13 Previous step
- 100 + 30 + 13 Definition of power / Definition of multiplication
- 57 Definition of addition and subtraction
The quadratic equation f(x) = - x² + 3 · x + 13 evaluated at x = 10 is equal to - 57.
To learn more on quadratic equations: brainly.com/question/17177510
#SPJ1
I found nothing difficult in factoring as calculator would do the work while graphing is too troublesome for a few marks worth of question
i prefer factoring
Answer:
(x-6)(x^2+6x+36)
Step-by-step explanation:
Answer:
The distribution is <u>positively skewed</u>.
Step-by-step explanation:
It's not symmetric because the distribution in the chart isn't equally shown or marked. It's not negative skewed either because for it to be negative the graph would have to go down in a negative direction, usually the left, but in the picture you posted the graph is going down in the right direction. Lastly, positively skewed graphs or charts look like the one you posted. They go down in the right direction, hence why they're called "positively" skewed. The right tail of the distribution is longer in positively skewed graphs or charts.
29/3=9.66
9.66^2=93.31
But 93.31>83
Therefore the student was wrong
