Exponents how do you do them
2 answers:
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Answer:
a = 36.37 cm
c = 18.19 cm
Step-by-step explanation:
to find a, use tan
⇒ tan =
⇒ tan 60 =
tan of 60 is 1.732
⇒ 1.732 =
multiply 21 on both sides
⇒ 1.732 x 21 = x 21
⇒ 36.37 = a
to find c, use sine
⇒ sine =
⇒ sine 60 =
sine of 60 is 0.866
⇒ 0.866 =
muliply 21 on both sides
⇒ 0.866 x 21 = x 21
⇒ 18.19 = c
Answer:
22°
Step-by-step explanation:
cos B = (c2 + a2 − b2)/2ca
cos B = ( +
-
)/ 2(10)(6)
cos B = .925
B = 22.33