Answer:
f(x) = x² + 2x + 1
Step-by-step explanation:
you know how to multiply 2 expressions ?
let's say in general we have
(a + b)(c + d)
you take one part of one expression and multiply it with all parts of the other expression, then you take the second part of the first expression and multiply it with all parts of the other expression, then a potential third part, then a fourth part and so on, and you add all these things together (well, depending on the actual signs, of course).
so, we get for this simple generic example
a×c + b×c + a×d + b×d
now we use that understanding for our question here.
(x+1)(x+1) = x×x + 1×x + x×1 + 1×1 = x² + x + x + 1 = x² + 2x + 1
Answer:
7/2
Step-by-step explanation:
2! means 2 factorial
i.e 2×1
thus 7/2! is = 7/2×1=
7/2
2.625 is the answer, bc 1.3125 times 5 = 8, and times 2 = 2.625
Answer:
x = 4
Step-by-step explanation:
It means that he will be paid 100$ a week for his job. He gets additional money which is called commission if he sells products. He gets a percentage of the products that he sells. So since he sold 550$ of products and his commision is 6 percent. He will gain that amount addionatlly on top of hist 100$ base salary.
6% is .06, we have to multiply this by $550. .06 x 550 is 33$. So he will get, at the end of the week, 100$ PLUS his commission with is 33$ so a total of 133$.
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