N = number of nights
M = number of meals
n = cost per night
m = cost per meal
T = total cost
Nn + Mm = T
They give us two scenarios :
1. N = 3 and M = 1 and T = 250
3n + 1m = 250
2. N = 3 and M = 6 and T = 330
3n + 6m = 330
Thus, we have a system of equations.
In the first equation, solve for m.
m = 250 - 3n
Now, plug this into the second equation and solve for n.
3n + 6m = 330
3n + 6(250 - 3n) = 330
3n + 1500 - 18n = 330
-15n = -1170
n = $78
Now, plug this back into our equation for m and solve.
m = 250 - 3n
m = 250 - 3(78)
m = 250 - 234
m = $16
Thus, it costs $78 per night and $16 per meal.
Answer:
When the discriminant value is zero, we get one real solution; When the discriminant value is negative, we get a pair of complex solutions; Standard Form. The standard discriminant form for the quadratic equation ax 2 + bx + c = 0 is. Discriminant, D = b 2 – 4ac. Where. a is the coefficient of x 2. b is the coefficient of x. c is a constant term.
Estimated Reading Time: 50 secs
Step-by-step explanation:
Answer:
Step-by-step explanation:
1). Distributive Property of multiplication over subtraction (Distributing the 5 and the 2)
2). Communtative Property of Equality (Moving terms around)
<span>Zeroes are found by setting y = 0.
x(x+5)(x+4) = 0
>> x=0 OR x+5=0 OR x+4 = 0
>> x = 0, x = -5, x = -4
So the zeroes of this function are x = 0, -5, -4/
For the graph, check attached image file.</span>
Answer:
This is a function
Step-by-step explanation:
If we can draw a vertical line through the graph and make contact with the graphed line at only one point then it is a function.
