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3 years ago

15

insert grouping symbols to make the answer correct. Then evaluate the expression to justify your work. 9 + 3 • 4 - 6 + 12 / 3 =

-20

1 answer:

Lena [83]3 years ago

5 0

9 + (3 x 4) - 6 + 12/3 3 makes 12 4 times which is why 12/3 is 4
9 + 12. -6. +. 4
21 - 6 + 4
15+4 = 20

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We will use section formula when a point, say P, divides any segment ,say AB, internally in the ratio m:n.

$[x=\frac{mx_2+nx_1}{m+n}, y= \frac{my_2+ny_1}{m+n}]$

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