Ax^2+bx+c=0
a=2
b=-1
c=-3
b+-sqrt( b^2 - 4ac)
2a
so...
-1 +- sqrt(1 + 24)
4
-1 +- 5
4
x= -1 + 5 = 1
4
or
x= -1 - 5 = -3/2
4
Answer:
49%
Step-by-step explanation:
First, find 55% of 9 pounds.
55% = 0.55
9 × 0.55 = 4.95
Next, find 40% of 6 pounds.
40% = 0.4
6 × 0.4 = 2.4
Add the two values together.
4.95 + 2.4 = 7.35
Find the percentage 7.35 is of the total weight (15 pounds).
7.35/15 = 0.49
0.49 = 49%
49% of the new mixture is peanuts.
X+4+2x-10=2x+1
3x-6=2x+1
X-6=1
X=7
Answer:
y = -cos(x) -2
Step-by-step explanation:
Multiplying the function value by -1 reflects it across the x-axis. Adding -2 to the function value shifts it down by two units.
reflected: y = -cos(x)
then shifted: y = -cos(x) -2