Use the change of base formula and the properties of logarithms to rewrite the expression as a single logarithm in the indicated base.loge2 x7 + loge3 x15 + loge4 x16, base e
A. ln 
B. 16 ln x
C. 25 ln x
D. ln 
Answer: A
Mathematics
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Provide an appropriate response.Factor the polynomial completely: 45x2 - 60x + 20
A. (3x - 2)(15x - 10) B. 5(3x - 2)2 C. (15x + 10)(3x - 2) D. 5(3x + 2)(3x - 2)
Mathematics
Solve the problem.The decay of 514 mg of an isotope is given by A(t) = 514e-0.021t, where t is time in years. Find the amount left after 63 years.
A. 137 mg B. 503 mg C. 134 mg D. 69 mg
Mathematics
Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 40 mi B. 20 mi C. 6.3 mi D. 10 mi
Mathematics
Write in logarithmic form.
5 = 
A. log5/6
= 5
B. log5
= 
C. log5/65 = 
D. 
= 
Mathematics