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Juliette [100K]
2 years ago
13

Find the value of x. Round to the nearest tenth.

Mathematics
1 answer:
tiny-mole [99]2 years ago
4 0

Answer:

x=18.0

Step-by-step explanation:

x^2=a^2+b^2-2ab\;cos\; (30)

x^2=16^2+30^2-2(16)(30)cos(30)

x^2=324.62

x=18.0

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83/100
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lord [1]

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7 0
3 years ago
Terry burnt a total of 654 calories working out. If Terry does the same workout routine a total of 7 times over the course of th
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7 0
3 years ago
Tod begins piano practice at 4:15 p.M. And ends at 5:50 p.M. How long does he practice
nikdorinn [45]

Answer:

95 minutes/1 hour and 35 minutes.

Step-by-step explanation:

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Hope this helps

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5 0
4 years ago
The fifth term of a geometric series is 405 and the sixth term is 1215. Find the sum of the first nine terms. Don't know how to
Margarita [4]
Since the sixth term is 1215 and the 5th term is 405, we know each term is 3 times more than the last.
Let 'n' represent the first term, then the sum of the first 9 terms can be written as:
n+3n+9n+27n+81n+243n+729n+2187n+6561n
which sinplifies to 9841n
since each term is 3 times the last, the first term must be 405 divided by 3, 4 times in total, which is 5
Now subsitute 'n' for 5, and we get 9841(5)
which is 49205 which is the answer.

Hope this helps
5 0
3 years ago
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