43
Without using table, solve the equation 8x-2 = \(\frac{2}{25}\)
- A. 4
- B. 6
- C. 8
- D. 10
44
Evaluate \(\frac{log_5 (0.04)}{log_3 18 – log_3 2}\)
- A. 1
- B. -1
- C. \(\frac{2}{3}\)
- D. -\(\frac{2}{3}\)
45
Evaluate \(\frac{0.36 \times 5.4 \times 0.63}{4.2 \times 9.0 \times 2.4}\)
- A. 0.013
- B. 0.014
- C. 0.14
- D. 0.13
46
Evaluate \(\frac{1}{3} \div [\frac{5}{7}(\frac{9}{10} -1 + \frac{3}{4})]\)
- A. \(\frac{28}{39}\)
- B. \(\frac{13}{39}\)
- C. \(\frac{39}{28}\)
- D. \(\frac{84}{13}\)
47
The mean of twelve positive numbers is 3. When another number is added, the mean becomes 5. Find the thirteenth number
- A. 29
- B. 26
- C. 25
- D. 24
48
Solve for x if \(25^{x} + 3(5^{x}) = 4\)
- A. 1 or -4
- B. 0
- C. 1
- D. -4 or 0