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3 years ago

Determine the measure of x, to the nearest tenth of a degree.

Mathematics

2 answers:

Masteriza [31]3 years ago

4 0

Answer:

About 73 degrees

Step-by-step explanation:

By the law of cosines:

$26^2=11^2+27^2-2(11)(27)\cos(x) \\\\\\676=121+729-594\cos(x) \\\\\\-174=-594\cos(x) \\\\\\\cos(x)= 0.\overline{29} \\\\\\x\approx 73.0^{\circ}$

Hope this helps!

coldgirl [10]3 years ago

3 0

Answer:

73 degrees

Step-by-step explanation:

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Step-by-step explanation:

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Solution :

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$t=\frac{-15\pm\sqrt{(15)^2-4(-16)(12)}}{2(-16)}$

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Reject negative value.

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