Answer:
x=1
Step-by-step explanation:
log_4(x + 3) + log_4x = 1
We know that loga(b) + loga(c) = loga(bc)
log_4(x + 3)x = 1
Raise each side to the base of 4
4^log_4(x + 3)x = 4^1
(x+3)x = 4
x^2 +3x = 4
Subtract 4 from each side
x^2 +3x -4 = 0
Factor
(x+4) (x-1) =0
Using the zero product property
x= -4 x=1
But x cannot be negative since logs cannot be negative
x=1
Answer:
16.4
Step-by-step explanation:
How many times does 5 go into 8? One time, subtract 8-5 which is three. Bring down the two which gives you 32. How many times does 5 go into 32? 6. Bring down a zero again. Keep bringing down zeroes. Usually don't go beyond three decimal points.
Answer:
C. Surveys
Step-by-step explanation:
A primary source of information is the gathering of data that hasn't already been collected.
One of the best ways is to use a market research survey.
A, B, and D are wrong. They are all secondary sources — they provide information that someone else has generated.
Step-by-step explanation:
d. 5x+3y=15 is the answer
coordinate 3,0 and 0,5
5•3 +(3•0)=15
5•0 +(3•5)=15
Answer: Use the same recipe but just throw away 4 cupcakes
