Q&A Forum
1106 questions found
What is the square root of 4 raised to the fifth power?
- 32
- 64
- 128
RK asking:
any help?
A quadratic equation has the real roots x=6 and x=9. Determine the equation which is satisfied by these roots.
- x^2 -54x+15=0
- x^2 -15x+54=0
- x^2 +15x-15=0
RK asking:
any help?
If an ammeter reads 0 - 1mA FSD, what would you be required to do to enable it to read 10mA FSD?
- Place a 5.8 ohm resistor as a shunt in parallel with the meter.
- Place a 9.9 ohm resistor as a multiplier across the coils.
- Place a 9 ohm resistor as a multiplier in series with the meter.
vale asking:
Can someone explain pls?
15.4/2 - 2*(6.2 - 15.6)
- -11.1.
- 11.1.
- 26.5.
RK asking:
the answer is wrong
In a right-angled triangle the other two angles are both 45 degrees. The length of the opposite side can be calculated by
- sin 45 degrees x length of the hypotenuse side of the triangle.
- sin 45 degrees x length of the adjacent side of the triangle.
- cos 45 degrees x length of the adjacent side of the triangle.
RK asking:
Any explanation please