exam Maths Puzzle Numerical Ability

Solve for x:
a) (4^x)(2^(x+3)=16(^2x-5)
b) (2x-1)(^1/2)=sqrt3
c) 8(^2x)+(8^x)-12=0
d) (x+3)(^2/3)=4

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exam Other Question

The linear equation that relates �C to �F is as follows:

�F = 1.8 �C + 32.0

The following data was calculated in this way:

Temperature �F Miles east from starting point 12.51 Do stock prices of competing companies move together? Below are daily closing prices of two

computer services firms (IBM = International Business Machines Corporation, EDS