given h = 600 - 16t ( add 16t to both sides )
16t + h = 600 ( subtract h from both sides )
16t = 600 - h ( divide both sides by 16 )
t =
when h = 400
t = =
= 12.5 seconds
What is the value of x, if the perimeter of the rectangle is 10? This is the problem :
2 answers:
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Answer:
Step-by-step explanation:
Given that the height in inches, of a randomly chosen American woman is a normal random variable with mean μ = 64 and variance 2 = 7.84.
X is N(64, 2.8)
Or Z =
a) the probability that the height of a randomly chosen woman is between 59.8 and 68.2 inches.
b)
c) For 4 women to be height 260 inches is equivalent to
4x will be normal with mean (64*4) and std dev (2.8*4)
4x is N(266, 11.2)
d) Z is N(0,1)
E(Z19) =
since normal distribution is maximum only between 3 std deviations form the mean on either side.
right-handThe triangles are similar if, the ratios of their sides are equal
On the left-hand side
and in the right-hand side, we have
The left-hand side equals the right-hand side; therefore, the triangles are similar.