Question

*
Find the value of x. Round to
the nearest tenth.
х
70°
36

Give the correct answer and make your self as a brilliant ​

Answer 1

Step-by-step explanation:

x=a.bc --> b=?

(1) x=a.b5. Clearly insufficient to determine b.

(2) x, rounded to nearest tenth is 54.5 --> x can be for example 54.54 (meaning that c<5) OR 54.46 (meaning that c>=5). Not sufficient.

(1)+(2) c=5>=5, hence x=54.45... --> b=4. Sufficient.

Answer: C.

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