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PolarNik [594]
3 years ago
5

Please help please im really confused

Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

sameeeeeee pls explain

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Find the value of b rounded to the nearest tenth
vekshin1

Answer:

You can use the Law of Sines for this problem, but what makes it tough at first glance is that they put a step in before you can use it directly. That first step is to get m∠C. When solving a triangle, always get the third angle if you know the other two so that you can use the Law of Sines (or Law of Cosines) more directly.

The sum of the angles of any triangles is 180°. We know the measures of the two other angles. So we subtract them from 180° to find that third angle.

180° - 76° - 66° = 38°

Now we can use the proportion from the picture. Angle B measures 76°, side b is our unknown, Angle C measures 38°, and side c measures 3 units.

sin 76° sin 38°

----------- = -----------

b 3

Cross multiply to find b (the side). We carry out five places in these calculations to get more accuracy.

3 * sin 76° = b * sin 38°

b = 3 * sin 76° 3 * 0.56611 1.69832

--------------- = --------------- = ---------------- = 5.73044

sin 38° 0.29636 0.29636

To the nearest tenth, b - 5.7 units.

Step-by-step explanation:

google hope this helps

6 0
3 years ago
PLease Help!
Verizon [17]
You need to work backwards
if it is no more than 9 units away from 8
thus x must be 8-9<x<8+9 solving -1<x<17
so the answer is 4.
8 0
3 years ago
What is the next number 3 4 6 9 13 18 24
Ilya [14]
31.
There's a pattern, +1, +2,+3,+4 ect. 
3 0
3 years ago
Read 2 more answers
Simplify.<br> Rewrite the expression in the form 4^n<br> (4^6)(4^-8) =
stiks02 [169]

Answer:

  4^-2

Step-by-step explanation:

The rules of exponents tell you ...

  (a^b)(a^c) = a^(b+c)

This means ...

  (4^6)(4^-8) = 4^(6-8) = 4^-2

7 0
3 years ago
Evaluate 4 - 6 + 9 - 3
omeli [17]
4 - 6 + 9 - 3 

= 4
3 0
3 years ago
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