Answer:
x = 27 and y = 17 is the solution the the given pair of equations.
Number of dinosaur's rib = x = 27
Number of dinosaur's arm = y = 17
Answer:
Step-by-step explanation:
a) 20% decrease, b) 25% increase
t could be 59 because 59 + 5 = 64 and 64 is a perfect square (8 x 8)
t could be 20 because 20 + 5 = 25 and 25 is a perfect square (5 x 5)
t could be 44 because 44 + 5 = 49 and 49 is a perfect square (7 x 7)
Answer:
lyrics b
Step-by-step explanation:
t - student distribution should be use when dealing with normal distribution but the sample from the population is minor than 30 . Curves for t-student are similar to the curve for normal distribution flattened and with much more area under tails and as n (sample number) increase the cuve become more and more similat to normal curve