Math Answers

What is Sipho's age in 6 years and what is Litha's age in 6 years

If a real number x is not a possible value for a random variable x, then it has a probability of

Balance the given chemical equation using linear equations (gussis Jordan elimination method).

Na₂CO3 + C + N₂ ---> NaCN + CO

According to Nielsen Media Research, the (population) average number of hours of TV viewing per household per week in the United States is 50.4 hours. Suppose the (population) standard deviation is known to be 11.8 hours. A random sample of 42 U.S. households is taken. What is the probability that the sample mean is less than 40 hours?

show that p ↔ q and (p ∧ q) ∨ (¬p ∧ ¬q) are logically equivalent

Hence, write down the equation with y as the subject (in terms of x). The value of m and q must be indicated

Find the equation of the tangent line to each curve when x has a given value.

1. f(x)= x²+2 as x= 2

2.f(x)= 3x²+1 as x=1

Find the slope of the tangent line of the given function f below.

1.f(x)=2x+5

2.f(x)=x²-1

D. The result of the nationwide aptitude test in mathematics are normally distributed with a mean of 70 and a standard deviation of 5. Find the raw score such that 60% of the cases are below it and case above it.

Find the area that corresponds to each of the following z-score values.

1. z = 2.86

2.  = -0.91

3. z = -1.6

4. z = 1.32

5. z = -2.18