Answer:
1. m=-8 or m=8
2. x=-3 or x=3
3. equation has no roots
(thus if represented in graph format, the graph will not
intersect the x-axis)
4. s=-√12 or s=√12
5. x=0 or x=4
Step-by-step explanation:
for questions 1, 2 and 4, nite that when there is an even power of a variable in an equation, there will be an introduction of extra solutions thus you cannot just assume that the numbers attained will always be positive as the multiplication if negative numbers will also give you a positive answer especially when you square the number.
Answer:
B. 64.9
Step-by-step explanation:
A graphing calculator or spreadsheet can fit these points with an exponential curve. An appropriate answer for x=14 is about 73.3.
_____
<em>Comment on the answer choices</em>
The closest answer that makes any sense is 64.9. Often these problems are worked by someone who uses inappropriate rounding of intermediate results. I haven't found the magic set of numbers to get 64.9. About the lowest I can get is 66.7, using 0.0037·e^(0.7x).
Anything to the power of 1 is still 1, because is simply 1 x 1 x 1 x 1 x 1 = 1 ect.
x = 2
<h2>Hope this helps!</h2>