Your Progress - Chapter 100% complete
1Exercises6 questions
Q.1Simplify: $2^3\times2^4$.v
Solution
For the same base, add exponents.
Answer:
$2^7=128$.
Q.2Simplify: $5^7\div5^3$.v
Solution
For the same base, subtract exponents.
Answer:
$5^4=625$.
Q.3Simplify: $(3^2)^3$.v
Solution
Power of a power: multiply exponents.
Answer:
$3^6=729$.
Q.4Write $0.0000123$ in standard form.v
Solution
Move the decimal 5 places to the right to get 1.23.
Answer:
$1.23\times10^{-5}$.
Q.5Write $3.02\times10^8$ in usual form.v
Solution
Move the decimal 8 places to the right.
Answer:
$302000000$.
Q.6Evaluate $10^{-3}$.v
Solution
$10^{-3}=1/10^3$.
Answer:
$\dfrac{1}{1000}$.