Combine into a single logarithm.


Mathematics

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Collect like terms and write in descending order.3y9 + 9y8 - 6y5 + 4

A. 10y22 B. 6y22 + 4 C. 3y9 + 9y8 - 6y5 D. Can't be simplified 

Mathematics

A farmer wishes to work out the average milk yield in his herd that consists of an equal number of Ayrshire, Friesian, Galloway, and Jersey cows.Suppose the farmer samples the 12 cows in his barn that are closest to where he enters the barn. What type of sampling is being used?

A. quota sampling B. stratified sampling C. convenience sampling D. simple random sampling E. capture-recapture

Mathematics

Complete the identity.sin ? [sin(3?) + sin 5?)] = ?

A. cos ? [cos(3?) - cos(5?)]
B.  cos ? [cos(3?) - cos(5?)]
C.  cos ? [cos(3?) + cos(5?)]
D. cos ? [cos(3?) + cos(5?)]

Mathematics

Solve the problem.A kitchen table costs $220. The tax is $19.80. What is the tax rate?

A. 11% B. 10% C. 9% D. 0.9%

Mathematics