Subtract using a number line -4 - (8)

Mathematics

2 answers:

olga2289 [7]3 years ago

6 0

your answer will be -12

Eva8 [605]3 years ago

4 0

For this case we have:

We build a numeric line like the one shown in the attached figure.

We place the number -4.

As -4 you want to subtract 8, we run, from -4, eight spaces to the left. That way you get -12.

So, using a number line we have $-4- (8) = - 12$

Answer:

$-4- (8) = - 12$

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julsineya [31]

Answer:

B=45 Degrees

Step-by-step explanation:

You can use law of sines to answer. Law of Sines states that $\frac{sin(a)}{A} =\frac{sin(b)}{B}$ . That means that $\frac{sin(60)}{4\sqrt{6} }=\frac{sin(b)}{8}$ . Multiplying 8 to both sides gives us $\frac{8sin(60)}{4\sqrt{6} }=sin(b)$ . By using inverse of sin, we get $b = sin^{-1} (\frac{8sin(60)}{4\sqrt{6} } )$ . Plugging that into a calculator gives us b=45 degrees.