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Find x. Round your answer to the nearest integer.
х
A. 8
B. 9
C. 6
D. 12

Find X Round Your Answer To The Nearest Integer Х A 8 B 9 C 6 D 12 class=

Sagot :

OPHELIUSidn
[tex]\bold{ANSWER:}[/tex]
OPTION D: 12

[tex]\bold{EXPLANATIONS:}[/tex]
View image OPHELIUS
Genanidn

Answer:

b. 9

Step-by-step explanation:

we use cosine since the given information is for adjcent and hypotenuse

cos(degree) = adj. / hyp.

cos(53°) = x / 15

Multiply both side by 15 to get x alone

cos(53°)  *15 = x / 15 *15

x = 15cos(53°)

x = 9.02722

USING SIN TO CHECK WORK:

Total degree of a triangle = 180°

we have 2, 53 and 90

53 + y + 90 = 180      y = 37°

to use sine, the information needed is opposite and hypotenuse

sin(degree) = opp. / hyp.

sin(37°) = x / 15

Multiply both side by 15 to get x alone

sin(37°)  *15 = x / 15 *15

x = 15sin(37°)

x = 9.02722

THEY MATCH!!!

Hope this helps, Let me know if you have any questions !

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