Answer:
--3 ±sqrt((-3)^2 -4(4)(-9))
-------------------------------
2(4)
Step-by-step explanation:
4x^2-5=3x+4
We need to get this in standard form to answer the question
Subtract 3x from each side
4x^2-3x-5=3x-3x+4
4x^2-3x-5=+4
Subtract 4 from each side
4x^2-3x-9 =0
a = 4
b = -3
c = -9
-b ±sqrt(b^2 -4ac)
---------------------------
2a
--3 ±sqrt((-3)^2 -4(4)(-9))
-------------------------------
2(4)
The answer is 26 :) because that way 26 and 26+4=30
Let x, y, and z be the 3 angles of the triangle.
x = 2y
x = z + 25
x + y + z = 180
-----------------------
x = 82
y = 41
z = 57
Answer:
More than 1 committee can be formed, *1 and a half<em>*</em>
I think that the total of the items are 8 and since there are 3 orange markers-the probability will be 3/8 or 37.5%. Since you took one out of the bag already, it becomes 7 markers in total and there are 2 red markers so 2/7=around 28.6%