Answer:
C ≈ 22.1°
Step-by-step explanation:
The law of cosines formula is given. Solving it for C, we find ...
C = arccos((a^2 +b^2 -c^2)/(2ab))
where a and b are the sides adjacent to the angle.
Then we have ...
C = arccos((14^2 +19^2 -8^2)/(2·14·19)) = arccos(493/532)
C ≈ 22.1°
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If you have a fair number of these to do, a spreadsheet is a useful tool. There are also triangle solver apps on the web or your local smart platform that will do this, too.
2(x+6)(x+1)
2x^2 + 14x + 12
2(x^2 + 7x + 6)
2(x+6)(x+1)
Basically thats it
Rewrite Equations
x=10; y=−5x+30
Step: Solve x=10
for x: x=10
Step: Substitute
10 for x in y=−5x+30:
y=−5x+30
y=(−5)(10)+30
y=−20
(Simplify both sides of the equation)
Answer: x=10 y=-20 (10,-20)
An integer is any whole number, including zero. This means that it cannot be a fraction or a decimal.
Therefore, the whole numbers, or <em /><em>integers</em>, between -0.6 and 4.17 are:
0, 1, 2, 3, and 4
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