Answer: See each part below.
1) A, B, and C are the coefficients in order when it equals 0. Move over the 4 and you have 5, 9, -4 or Choice B.
3) If you graph the equation, it will be above the x-axis. Therefore, it has no roots. Choice D
4) Choice A is correct. Use the coefficients: A = 4, B = 3, C = -10. Simply plug those into the quadratic equation and you will get -2 and 1.25.
Step-by-step explanation:
1. 0.2/0.40=0.5
2. 0.02/0.40=0.05
3. 0.3/0.60=0.5
4. 1.2/0.60=2
5. 0.2/0.40=0.5
X/2 means 1/2x
To delete the denominator multiply for 2. You have to multiply also 17 for 2 since you have half x.
2*1/2x = 17*2
x = 34
Answer D.
1/2(5-7x)=8-4x+6
-7/2x+5/2=-4x+14 Simplify both sides
1/2x+5/2=14 Add 4x to both sides
1/2x=23/3 Subtract 5/2 on both sides
2*(1/2x)=2*(23/2) Multiply both sides by 2
x=23 - Final Answer
Cheers, Irys
We use the definition of the volumes of each figure in order to calculate the diameter of the cylinder. We calculate as follows:
V(cylinder) = V(rectangular prism)
πr²h = lwh
from the given, height of the cylinder = height of the prism
πr² = lw
πr² = 5.3(2.7)
r = 2.13
D=2r = 4.27 mm
