Solve for \(x\):
\[
2^{x+1} = 128
\]
Show Hint
- 6
- 8
- 7
- 5
- 9
The Correct Option is A
Solution and Explanation
\[ 128 = 2^7 \]
Step 2: Equating exponents.
We are given: \[ 2^{x+1} = 2^7 \] So, \[ x + 1 = 7 \]
Step 3: Solve for \(x\).
\[ x = 6 \]
Final Answer: \[ \boxed{6} \]
Top Questions on Exponents
- Given: \( 3^{2x} - 12 \times 3^{x} + 27 = 0 \).
Quantity A: x
Quantity B: \(3^{x}\) - Evaluate: \(0.4835 \times 10^2\)
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- If \( 5\sqrt{5} \times 5^3 \div 5^{-3/2} = 5^a \), then the value of \( a \) is:
Questions Asked in GRE exam
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- GRE - 2024
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Such a blend of musical elements was not entirely new: by 1924 both Milhaud and Gershwin had composed classical works that incorporated elements of jazz. Johnson, a serious musician more experienced than most classical composers with jazz, blues, spirituals, and popular music, was particularly suited to expand Milhaud’s and Gershwin’s experiments. In 1927 he completed his first large-scale work, the blues- and jazz-inspired Yamekraw, which included borrowings from spirituals and Johnson’s own popular songs. Yamekraw, premiered successfully in Carnegie Hall, was a major achievement for Johnson, becoming his most frequently performed extended work. It demonstrated vividly the possibility of assimilating contemporary popular music into the symphonic tradition.- GRE - 2024
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