Select the correct answer. What is the sound level for a noise that has an intensity of 9.9 x 10 watts/m?
(p=10l9e(/o)- 1012 watts/m)
OA. 8.00 dB
OB. 9.90 dB
OC. 80.00 dB
OD. 99.00 dB
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7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33