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djyliett [7]
3 years ago
5

Please answer at least one of them.

Mathematics
2 answers:
dsp733 years ago
8 0
Hey there find an image attached..

Vladimir79 [104]3 years ago
4 0
3 is 280 over 400 you just use the info they give you
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What makes up the sides of an angle?
lesantik [10]
The sides of the angle are the lengths which it is formed
3 0
3 years ago
Please help will give u brainliest pls help me​
masya89 [10]

Answer:

19

Step-by-step explanation:

1/2*(5+x)*4=48

5 0
2 years ago
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Find sin (A-B) if sin A = 4/5 with A between 90 and 180 and if cos B = 3/5 with B between 0 and 90
quester [9]

Answer:

sin(A-B) = 24/25

Step-by-step explanation:

The trig identity for the differnce of angles tells you ...

sin(A -B) = sin(A)cos(B) -sin(B)cos(A)

We are given that sin(A) = 4/5 in quadrant II, so cos(A) = -√(1-(4/5)^2) = -3/5.

And we are given that cos(B) = 3/5 in quadrant I, so sin(B) = 4/5.

Then ...

sin(A-B) = (4/5)(3/5) -(4/5)(-3/5) = 12/25 + 12/25 = 24/25

The desired sine is 24/25.

3 0
3 years ago
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tatuchka [14]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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Triangle ABC is equilateral. Find the height of BD
Oksana_A [137]

Answer:

C) 4√3

Step-by-step explanation:

The given triangle is an equilateral triangle. BD is angle bisector.

Triangle BCD is a 30-60-90 degree triangle in the ration of 1:√3:2

Here we are given BC, that is highest length of the side.

So 2x = 8

x = 8/2

x = 4.

BD = √3 x

Now plug in x =4, we get

Height (BD) = 4√3

Thank you.

4 0
3 years ago
Read 2 more answers
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