Answer:
-4
mark brainlest pls
Step-by-step explanation:
<u>Answer</u>
= -24
<u>Explanation</u>
The discriminant helps us determine the nature of the roots of a quadratic equation
When using the quadratic formula the find the roots of a quadratic equation, the term (b²-4ac) is known as the discriminant.
Where b ⇒ coefficient of the 2nd term
a ⇒ coefficient of the 1st term
c ⇒ the 3rd term.
In the equation 3x²-6x+5, the discriminant is;
(-6)² - (4×3×5) = 36 - 60
= -24
Answer:
c
Step-by-step explanation:
J=justin
marcella=m
aimee=a
j is 2 older than 1/3 of m
'of' means multiply
j=2+1/3m
a is 4 younger than 2 times j
a=-4+2j
represent justin's age?
dunno
ok so I can solve if I know m=63
j=2+1/3m
j=2+1/3(63)
j=2+21
j=23
subsitute
a=-4+2j
a=-4+2(23)
a=-4+46
a=42
justin is 23 and aimee is 42 if marcella is 63
1. Cost = room rental + transportation
Let units of cost be "dollars" and let "n" represent the number of people going on the field trip.
.. cost = 637 +18n
.. revenue = 105 +25n
2. You want to find "n" so that revenue matches cost.
.. revenue = cost
.. 105 +25n = 637 +18n
.. 7n = 532
.. n = 76
76 people need to make the trip to break even