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bogdanovich [222]
3 years ago
13

Evaluate this expression​

Mathematics
2 answers:
Deffense [45]3 years ago
6 0
8 x(1/8 x 18)
8 x (1/4 x 9)
8 x 9/4
2 x 9
= 18
xenn [34]3 years ago
4 0

Answer:

18

Step-by-step explanation:

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How do I factor w^2 + 16?
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(w+4) (w-4)

Step-by-step explanation:

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Need help with number 9 please, thanks.
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13. In A ABC, if m BF is an angle bisector, find<br> m
Tresset [83]

If in the triangle ABC , BF is an angle bisector and ∠ABF=41° then angle m∠BCE=8°.

Given that m∠ABF=41° and BF is an angle bisector.

We are required to find the angle m∠BCE if BF is an angle bisector.

Angle bisector basically divides an angle into two parts.

If BF is an angle bisector then ∠ABF=∠FBC by assuming that the angle is divided into two parts.

In this way ∠ABC=2*∠ABF

∠ABC=2*41

=82°

In ΔECB we got that ∠CEB=90° and ∠ABC=82° and we have to find ∠BCE.

∠BCE+∠CEB+EBC=180  (Sum of all the angles in a triangle is 180°)

∠BCE+90+82=180

∠BCE=180-172

∠BCE=8°

Hence if BF is an angle bisector then angle m∠BCE=8°.

Learn more about angles at brainly.com/question/25716982

#SPJ1

4 0
1 year ago
Create an expression that simplifies to sin x
Dimas [21]

Answer:

2\cdot \sin 0.5x \cdot \cos 0.5x

Step-by-step explanation:

Here is one example:

2\cdot \sin 0.5x \cdot \cos 0.5x

\sin 0.5x \cdot \cos 0.5x + \cos 0.5x\cdot \sin 0.5x

\sin (0.5x + 0.5x)

\sin x

4 0
3 years ago
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