Question 12. ).
Solve:
- 5x + 5 + 4x^2 = 0
Simplify both sides:
4x^2 - 5x + 5 = 0
Step 2.): Use Quadratic Formula:
a = 4, b = - 5, c = 5
x = - b +/- sqrt b^2 - 4ac/2a
x = - ( - 5) +/- sqrt ( - 5)^2 - 4(4)(5) / 2(4)
x = 5 +/- sqrt - 55/8
Answer: No Real Solutions
Hope that helps!!!!! : ) sorry couldn't help with the rest. My brain has to rejuvenate, at a stand still right now.
4x+y=3
-5x-8y=-6
C is the one that will help you solve it.
Answer: a: 55 microns- 75 microns
b: 3.4 feet- 3.6 feet
Step-by-step explanation:
For letter a you have an accuracy up to 10 microns so add and subtract from the original number; the same applies to letter b just turn the percentage to a decimal then add and subtract. Hope that helps!
Answer:
213
Step-by-step explanation:
The question is impossible to answer since. Since you can't answer that without knowing the volume of the bar to start with. The only given is the length, there should be other dimensions like the width and area of the cross-section, for instance.
Volume = Width x Depth x Height in all cases, so when you know the volume. But to solve for the height of the cuboid, the equation is V/100 (because the base of the cuboid is 100 cm^2)