Given: e-midpoint of da
f - midpoint of db
e, f, c collinear, fc ≅ ef
prove: eabc is a parallelogram.

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)