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
Use 80% *25 than you can get 20.
The number is 4.
<h3>What is the Quotient?</h3>
A quotient is defined as the outcome of dividing an integer by any divisor that can be said to be a quotient. The dividend contains the divisor a specific number of times.
Let n be the number in question; then, we can write the word problem as an equation like this:
⇒ (n/6) + 1/3 = 7/6
Multiply everything by the least common multiple of all the denominators (6, 3, 6), which is 6.
⇒ 6(n/6) + 9(1/3) = 6(7/6)
⇒ n + 3 = 7
Subtract 3 from both sides,
⇒ n = 4
Hence, the number is 4.
Learn more about the quotient here:
brainly.com/question/27796160
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1 - (1/4 + 2*1/4)
1 - 3/4
1/4 of the living room still remains unpainted.
