Answer:
w=3/5 or w=-5
Step-by-step explanation:
5w^2+22w=15
5w^2+22w-15=0 (quadratic equation)
a=5, b=22, c=-15
w1,2 =(-b+-sqrt(b^2-4ac))/2a
w1,2 =(-22+-sqrt(22^2-4*5*(-15))/2*5
w1,2 =(-22+-sqrt(484+300))/10
w1,2=(-22+-sqrt(784))/10
w1,2=(-22+-28)/10
w1=(-22+28)/10, w2=(-22-28)/10
w1=6/10, w2=-50/10
w1=3/5, w2=-5
Answer:
5/2 kg
Step-by-step explanation:
The ratio here is 2:6. 2 plus 6 is 8.
Then (2/8) times 10 kg represents the amount of compost needed; that comes to 20/8 kg, or 10/4 kg, or 5/2 kg.
Answer:
44
Step-by-step explanation:
4+7=11
11+3=14
14+8=22
22+3=25
25+7=32
32+3=35
35+9=44
The answer is the option A, which is: A. Volume is
times larger.
The explanation for this problem is shown below:
1. The formula for calculate the volume of a cylinder is:

Where
is the radius of the cylinder and
is the height of the cylinder.
2. If the height of the cylinder is doubled, you have the the new volume is:

3. As you can see, the new volume is two times the original volume. Therefore, it is two times larger.