Calculate the size of angle x. Give your answer to 1 decimal place
1 answer:
Cosine rule
Cosx=(11 ²+8²-(15²))/2(11)(8)
Cosx=(121+64-225)/176
Cosx=-40/176
Cosx=-5/22
X=cos-1 -5/22
X=103.1
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Answer:
B
Step-by-step explanation:
7m+11= -4 x 2m + (-4 x 3)
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7m +8m = -12-11
15m = -23
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Answer:
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Step-by-step explanation:
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