Discriminant =
b² - 4ac
3² - 4(2)(- 9)
9 + 72
81
Your equation has two real solutions.
2x² + 3x - 9 = 0
2x² + 6x - 3x - 9 = 0
2x(x + 3) - 3(x + 3) = 0
(2x - 3)(x + 3) = 0
Set each equal to zero:
2x - 3 = 0
2x = 3
x = 3/2
x + 3 = 0
x = - 3
Your two solutions are x = - 3, 3/2
Answer:
<em>D. 3.5!</em>
Step-by-step explanation:
If you slowly go up the line it will be 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, if it were to carry on it would keep being .5 then the next number. Since this is not a fraction number line the answer is not A. -9/2 nor C. -7/2.
<u><em>~ LadyBrain</em></u>
3 to 5 feet is the ratio in lowest form
Answer:
(0,-3)
Step-by-step explanation:
the y intercept is the last number of the expression; in this case it's negative 3. x is always 0
Answer:
21 ways
Step-by-step explanation:
a, b, c, d, e, f, g, linda
1 2 linda
a__ b__ __
a__c __ __
a__d __ __
a__ e__ __
a__ f__ __
a__ g__ __
b__c __ __
b__d __ __
b__ e__ __
b__ f__ __
b__ g__ __
c__d __ __
c__ e__ __
c__ f__ __
c__ g__ __
d__ e__ __
d__ f__ __
d__ g__ __
e__ f__ __
e__ g__ __
f__ g__ __
count them
in total
there are
21 triples