Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Select the equivalent expression.

((2^(-10))/(4^(2)))^(7)=?
Choose 1 answer:
(A) 
(1)/(2^(70)*4^(14))
(B) 
2^(84)
(c) 
2^(-3)*4^(-9)

Select the equivalent expression.\newline((210)/(42))7=?((2^{-10})/(4^{2}))^{7}=?\newlineChoose 11 answer:\newline(A) \newline(1)/(270414)(1)/(2^{70}\cdot4^{14})\newline(B) \newline2842^{84}\newline(C) \newline23492^{-3}\cdot4^{-9}

Full solution

Q. Select the equivalent expression.\newline((210)/(42))7=?((2^{-10})/(4^{2}))^{7}=?\newlineChoose 11 answer:\newline(A) \newline(1)/(270414)(1)/(2^{70}\cdot4^{14})\newline(B) \newline2842^{84}\newline(C) \newline23492^{-3}\cdot4^{-9}
  1. Simplify base: Simplify the base of the exponent.\newlineWe have the expression ((210)/(42))7((2^{-10})/(4^{2}))^{7}. First, we need to simplify the base. Since 44 is 222^2, we can rewrite 424^2 as (22)2(2^2)^2.
  2. Power rule: Apply the power of a power rule.\newlineUsing the power of a power rule, which states that (am)n=amn(a^{m})^{n} = a^{m*n}, we can simplify (22)2(2^{2})^{2} as 222=242^{2*2} = 2^{4}.
  3. Rewrite expression: Rewrite the original expression with the simplified base.\newlineNow we can rewrite the original expression as ((210)/(24))7((2^{-10})/(2^4))^{7}.
  4. Quotient rule: Apply the quotient of powers rule.\newlineUsing the quotient of powers rule, which states that am/an=amna^{m}/a^{n} = a^{m-n}, we can simplify the expression inside the parentheses as 2104=2142^{-10-4} = 2^{-14}.
  5. Power rule again: Apply the power of a power rule again.\newlineNow we have (214)7(2^{-14})^{7}. Using the power of a power rule again, we can simplify this as 214×7=2982^{-14\times7} = 2^{-98}.
  6. Check answer choices: Check the answer choices.\newlineWe have simplified the expression to 2982^{-98}. Now we need to check which answer choice matches this expression.\newline(A) (1)/(270414)(1)/(2^{70}*4^{14}) does not match because it has positive exponents and includes a factor of 4144^{14}.\newline(B) 2842^{84} does not match because it has a positive exponent and the exponent is different from 98-98.\newline(C) 23492^{-3}*4^{-9} does not match because it has two separate bases and the exponents do not add up to 98-98.\newlineNone of the answer choices match our simplified expression.

More problems from Evaluate expressions using properties of exponents

QuestionGet tutor helpright-arrow

Posted 7 months ago

QuestionGet tutor helpright-arrow

Posted 9 months ago