The sum of 5 and 12 is 7 if and only if

1 answer:

8 0

The sum of 5 and 12 is 7 if and only if 5 is a negative integer such that
-5 +12 =7.
Integers are whole numbers which are either negatives or positive normally shown using a number line.

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Law of Sines or Law of Cosines....Help!!

iren2701 [21]

Answer:

Law of cosines to find missing measures

c^2= a^2+ b^2 - 2ab*cos(C)

Used because it is a SAS triangle

Step-by-step explanation:

This is known as a side, angle, side, or SAS triangle. We can find the missing measures by using the Law of cosines

c^2= a^2+b^2-2ab*cos(C)

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3 years ago

An electrician charges $40 to come to your house she also charges $55 for each hour that she works the electrician charges you a

s2008m [1.1K]

First lets remove the initial fee
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3 years ago

C(x-2)-5=b(x-3), solve for x

xeze [42]

Answer:

x = (2c - 3b + 5) / (c - b).

Step-by-step explanation:

c(x - 2) - 5 = b(x - 3)

cx - 2c - 5 = bx - 3b Bring the terms in x to left side:-

cx - bx - 2c - 5 = -3b Bring other terms to right side:-

cx - bx = 2c - 3b + 5

x(c - b) = 2c - 3b + 5 Divide both sides by c - b:-