Find the value of c that makes the expression a perfect square trinomial x^2+22x+c with work
2 answers:
Here we have the following expression:
A Perfect Square Trinomial is given by the form:
So matching terms, we can conclude that:
So, substituting c into the expression:
It is a perfect square because:
Quadratic Equation in real life problems: brainly.com/question/10278062
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Answer:
Step-by-step explanation:
Circle is centred at (0, -2)
-> h = 0 & k = - 2
radius of the circle (r) = y-coordinate of the center = - 2
Equation of circle in standard form is given as:
Plugging the values of h, k and r in the above equation, we find:
This is the required equation of circle.
Answer:
a)
<u>The discount id 40%, so the function is:</u>
- d = 0.4p
b)
- p = 100 ⇒ d = 40
- p = 200 ⇒ d = 80
- p = 300 ⇒ d = 120
- p = 400 ⇒ d = 160
- p = 500 ⇒ d = 200
<em>The graph is attached</em>
c)
- p = $85 ⇒ d = 0.4*$85 = $34
<u>Sale price is:</u>
- CP = p - d = $85 - $34 = $51
