Write an expression to represent the situation and answer the question. shana took a test with 50 questions. she lost 2 points for each of the 5 quedtions she got wrong. she got 3 extra credit questions correct and recived 5 points for each. what is the total number of points she gained or lost overall

The total number of points gained are 50.

Step-by-step explanation:

There are in all 50 questions.

She got 45 questions correct and 5 questions wrong.

For every correct question she earns 1 point.

So the gained points are points.

But, she lost 5 questions, for which 2 points are deducted.

So the points reduced are, points.

Also, at the end She managed to get the 3 credit questions correct, each of 5 points.

So the gained points are points.

Thus the total points are,

points.

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.