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3 years ago

Six more than the difference of B and five

Mathematics

1 answer:

aalyn [17]3 years ago

6 0

Answer:

Step-by-step explanation:

The difference between B and 5 means to subtract 5 from B.

Six more than this difference means to add 6 to the difference.

(B-5) + 6

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3 years ago

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2 years ago

Two ropes are attached to a large ballon in a parade. The people holding the ropes are 40 feet apart,and the angle between the t

tankabanditka [31]

Answer:

We'll use the Law of Sines:

Sine (C) / c = Sine (B) / b

Sine (86) / 40 = Sine (52) / b

0.99756 / 40 = 0.78801 / b

0.024939 = .78801 / b

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I forgot to include the graphic.

Step-by-step explanation:

8 0

3 years ago

What are 2 numbers that multiply to 27 but add to 12

allsm [11]

Answer:

9 and 3

Step-by-step explanation:

3 0

3 years ago

(cos A + cos b)^2 + (sin A + sin B)^2=?

emmasim [6.3K]

First, we expand the equation:

$cos^{2}A+2cosAcosB+ cos^{2}B+sin^{2}A+2sinAsinB+sin^{2}B$

Then, we combine certain terms in order to simplify them using trigonometry identities.

$cos^{2}A+sin^{2}A+cos^{2}B+sin^{2}B+2cosAcosB+2sinAsinB$

Note these identities:
Pythagoran relation: $cos^{2}A+sin^{2}A = cos^{2}B+sin^{2}B=1$
Sum and Difference Formula/Identities: $cos(A-B) = cosAcosB+sinAsinB$

Thus, if we apply these identities, the simplified equation would be:
$2(cos(A-B))+2$

Simplying further, the answer would be

$2[cos(A-B)+1]$

6 0

3 years ago