Answer: a: 8.25 b: 49.5
Step-by-step explanation:
She got back $2.50 hope this helped
A.
Because the negatives cancel each other out to make a positive
Answer:
Option C (f(x) = 
)
Step-by-step explanation:
In this question, the first step is to write the general form of the quadratic equation, which is f(x) = 
, where a, b, and c are the arbitrary constants. There are certain characteristics of the values of a, b, and c which determine the nature of the function. If a is a positive coefficient (i.e. if a>0), then the quadratic function is a minimizing function. On the other hand, a is negative (i.e. if a<0), then the quadratic function is a maximizing function. Since the latter condition is required, therefore, the first option (f(x) = 
) and the last option (f(x) = 
) are incorrect. The features of the values of b are irrelevant in this question, so that will not be discussed here. The value of c is actually the y-intercept of the quadratic equation. Since the y-intercept is 4, the correct choice for this question will be Option C (f(x) = ). In short, Option C fulfills both the criteria of the function which has a maximum and a y-intercept of 4!!!
Point (3,0) is system solution.
<h3>What is inequality?</h3>
A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
We have
y> -2
x + y <4
First inequation:
-5> -2 (incorrect)
Second inequality:
1-5 <4 (correct)
First inequation:
0> -2 (correct)
Second inequality:
0+3 <4 (correct)
First inequation:
-2> -2 (incorrect)
Second inequality:
-1-2 <4 (correct)
First inequation:
5> -2 (correct)
Second inequality:
1+5 <4 (incorrect)
Hence, Point (3,0) is system solution.
Learn more about inequality here:
brainly.com/question/20383699
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