Algebraplease check my answers
posted by Ang .
Solve the equation by expressing each side as a power of the same base and then equating exponents.
9^(x  9)/8= sqrt of 9
i got 13
4^(x + 10) = 8^(x  6)
i got 38
Solve the exponential equation. Express the solution set in terms of natural logarithms.
2^8x = 4.5
i got {ln 4.5/8 ln 2}
Solve the exponential equation. Express the solution set in terms of natural logarithms.
4^(x + 4) = 5^(2x + 5)This question I don't understand.

Algebraplease check my answers 
Corin
9^(x  9)/8= sqrt of 9
i got 13
Correct!
______________________
4^(x + 10) = 8^(x  6)
i got 38
Correct! Here's my work:
4^(x+10)=(2^2)^(x+10)
8^(x6)=(2^3)^(x6)
2(x+10)=3(x6)
Distribute
2x+20=3x18
x=38
x=38
______________________
Solve the exponential equation. Express the solution set in terms of natural logarithms.
2^8x = 4.5
i got {ln 4.5/8 ln 2}
Correct! I checked the answer with my calculator for you. It's right! :)
______________________
Solve the exponential equation. Express the solution set in terms of natural logarithms.
4^(x + 4) = 5^(2x + 5)This question I don't understand.
I'm not sure I do either. I'll post back if I figure it out. Sorry. 
Algebraplease check my answers 
drwls
4^(x + 4) = 5^(2x + 5)
Take logs to base e of both sides
(x+4) ln4 = (2x+5)ln 5
(x+4)/(2x+5) = (ln5)/(ln4)= 1.161
Solve for x 
Algebra  1 
Thao
1,2,3,4

Algebraplease check my answers 
aaron
what is x
4  x/4 = 5
Respond to this Question
Similar Questions

algebra
Can someone please help me with this one? 
College Algebra
Solve the equation by expressing each side as a power of the same base and then equating exponents. 3 (63x) = 1/27 {9} {1/9} {3} {3} 
math need now
solve the equation by expressing each side as a power of the same base and then equating exponents 3125^x=1/square root 5 
math
solve the equation by expressing each side as a power of the same base and then equating exponents 2^(73x)=1/4 
algebra
solve the equation by expressing each side as a power of the same base and then equating exponents. 2^(73x)= 1/4 
AlgebraPlease check
1. solve sqrt (11x) = sqrt(x7) choices are 6,7,8 or9 I think according to my calcs the answer is (9) The range of f(x) = sqrt(3x6)  2 answers would be y<= (2) y>= (2) y> (2) y<=(2) I think the answer is y <= 2, … 
Math
Solve the equation by expressing each side as a power of the same base and then equating exponents. 2x = 16 
College algebra
Solve equation by expressing each side as a power of the same base & then equating exponents. e^x+5=1/e^6 
Algebra
Solve the exponential by expressing each side as a power of the same base and then equating exponents. 5^x2/4=squaroots 5 please help. Thanks! 
college algebra
Solve the following exponential equation by expressing each side as a power of the same base and then equating exponents. 31x = 1/27