Find the difference.
(14m+ 4) - (7m-1)

α. 21m+ 5
β. 7m + 3
c. 7m+ 5
d. 21m+ 3

Option C

The difference of (14m + 4) - (7m - 1) is 7m + 5

Solution:

Given that the expression is (14m + 4) - (7m -1)

We need to evaluate the expression and find the difference

The expression can be evaluated according to BODMAS

BODMAS represents the sequence of operations - Brackets, Order, Division, Multiplication, Addition and Subtraction.

⇒ (14m + 4) - (7m -1)

According to BODMAS, Brackets has to evaluated first.

⇒14m + 4 - 7m + 1

Now adding the like terms we get,

⇒ 7m + 5

Hence the difference of given expression is 7m + 5 Hence Option C is correct

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

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step-by-step explanation:

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