<span><span><span>Side c = </span>18</span><span>
<span>Angle B = </span>79°
</span><span><span>Side a = </span><span>12
AB = side b
</span></span></span><span><span>Use the Law of Cosines to find the length of side b.</span><span> <span>
b^2 = </span><span>a^2 + c^2 − 2ac cos(B)</span></span><span> <span>
b^2 = </span><span>(122 + 182) − ( 2 x 12 x 18) cos(79°)</span></span><span>
<span>b^2 = </span>(144 + 324) − 432 x 0.191</span><span> <span>
b^2 = </span>468 - 432 x 0.191</span><span> <span>
b^2 = </span>468 - 82.429</span><span> <span>
b^2 = </span>385.571</span><span>
b = √385.571</span><span>
b = 19.636
Rounded to the nearest tenth is 19.6 cm.
Hope this helps!</span></span>
Answer:34 1u
Step-by-step explanation:
12 34b2 by 33
Answer: 8
Step-by-step explanation: i did the test and used my big brain.
First round 15.25 to 15.30 and round 4.85 to 4.90 and then add you get 21.20 no it is not reasonable and you round to the decimal ones
The middle of 6-2i and -4+6i is 1+2i :)