Answer:
247
Step-by-step explanation:
From the question given above, the following data were obtained:
nth term (Tₙ) = 5n – 3
Number of term (n) = 50
50th term (T₅₀) =?
The 50th term can be obtained as follow:
Tₙ = 5n – 3
T₅₀ = 5(50) – 3
T₅₀ = 250 – 3
T₅₀ = 247
Therefore, the 50th term is 247.
Answer:
4.3 to 1 decimal place.
Step-by-step explanation:
x^3 - 5x - 59 = 0
Try x = 4.1:
f(4.1) = (4.1)^3 - 5(4.1) - 59 = -10.579
Try: 4.2:
f(4.2) = 4.2^3 - 5(4.2) - 59 = -5.912, Try x = 4.3:
f(4.3) = -0.993 (getting closer to 0!!)
f(4.4) = 4.184
NOTICE - there is a change of sign in the result so the root lies between 4.3 and 4.4.
Try x = 4.35:
f(4.35) = 1.563 so it looks like the root is closer to 4.3 than 4.4 because 1.563 is closer to zero than 4.184.
Just to double check let's calculate x = 4.32:
f(4.32) = 0.0216 - which is very close to zero.
So the answer is 4.3 to 1 decimal place.
(I've checked it out on my calculator - the root is 4.31958).
True
In any equation multiplication and division should be done first.
Z-scores are expressed in terms of standard deviations from their means. <span>The standard score is simply the score, minus the mean score, divided by the standard deviation. It is calculated as follows:
z = X- mean / standard deviation
z = 2.7 - 2.4 / 1.5
z = 0.2</span>
1 % of 330 is 3.3 and 3.3x8=26.4 so 26.4+330=356.4
356.4
