Answer:
=7^(-10) or = 1 / 7^10
Step-by-step explanation:
7^(-7)*7^(-3)
Exponent rule : a^n ⋅ a^m = a^n+m
7^(-7)*7^(-3)
= 7^(-7-3)
=7^(-10)
= 1 / 7^10
Answer:
280 ml as a percentage of 140 l is 0.2%
Step-by-step explanation:
- Note that 1 liter = 1000 milliliters
- To find a percentage of a number divide the number by the total and multiply the quotient by 100%
∵ There is an amount of 280 ml
∵ The total amount is 140 l
→ Change the liter to milliliters using the 1st point above
∴ 140 l = 140 × 1000 = 140000 ml
∴ 140 l = 140,000 ml
→ Now divide the amount by the total, then multiply the quotient by 100%
∵ 280 ÷ 140,000 =
∵
× 100% = 0.2%
∴ 280 ml as a percentage of 140 l is 0.2%
This is not an equation. It's just an expression that you have to evaluate,
but I think you'll have fun with it.
[ sin(270°) / cos(180°) ] x (Ψ cycles per second / Ψ Hertz) x [ log(10) ] = ?
Answer:
40ft
Step-by-step explanation:
√100=10
10*4=40ft
SECOND!!!!! Its the second one :)