6n2 - 6n - 6n + 6
= 6n2 - 12n + 6
Because the function f(x) =-2+√x+7 has √x, x should be more or equal 0.
Domain is x≥0, or [0,+∞).
The smallest value of x=0, so the smallest value of f(x) is f(0) =-2+√0+7=5,
so range is f(x)≥5, or [5, +∞).
Answer:
9p + 34a = 253 and p + 8= a are the two required equations which will give us the number of phones and accessories sold by Jose
Step-by-step explanation:
Let us denote the number of phones as ‘p’ and number of accessories as ‘a’ So, we can write the following equations from the given data:
Given that levi made $ 253 commission
<u>9p + 4a = 253 (1) </u>
And, Jose sold sold 8 more accessories than phones. So we can frame a equation as follows:
<u>p + 8 = a (2)</u>
These two equations can be used and solved to determine the number of phones and accessories sold.
You first multiply $61 by .20(decimal form of 20%) and get $12.2
Since this is 20% off(that means it's less than the original price) so subtract 12.2 from $61=48.8
then add the tax so 48.8 by .05 =2.44
so 48.8+2.44
the final price is $51.24
