Similarities: They both are polynomials of degree 2, both of their graphs is a parabola, both have either 2 or 0 real solutions, they are both continuous functions over R
<span>(DOS= difference of two squares, PST=perfect square trinomial </span>
<span>Differences: PST has three terms, whereas the difference of squares has 2. PST's factors are both the same, whereas DOS's elements are conjugates of each other. DOS can always be factored into two distinct polynomials with rational coefficients, whereas PST has two same polynomial factors.</span>
<span>you add up all the costs, subtract from the total, then divide by 3.5 answer>
b. $57.14 per hour</span>
Answer:
Traingle LKJ is similar to triangle LMK is similar to triangle KMJ
Step-by-step explanation:
Answer:
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The exam scores are distributed normally with mean 72 and standard deviation 5.
Recall the empirical (68 - 95 - 99.7) rule, which says that approximately 95% of a normal distribution lies within two standard deviations of the mean. Put another way,
Also recall that the normal distribution is symmetric about its mean. This means that
From this last equation, it follows that
That is, about 47.5% of the students scored between 72 and 87 on the exam.