The numbers of pages in the books in a library follow a normal distribution. If the mean number of pages is 180 and the standard deviation is 30
pages, what can you conclude?
OA About 60% of the books have fewer than 150 pages.
OB. About 16% of the books have fewer than 150 pages.
OC About 95% of the books have more than 150 pages.
150 pages.
So pages.
50 pages.
150 pages.
OD. About 16% of the books have more than 150 pages.

hi,

i'm 75% sure the answer is 1,1 to both lines.

have a great day

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

2x^2+5x+17

your welcome. : )

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step-by-step explanation:

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