Answer:
4x⁸
Step-by-step explanation:
To square 2x⁴, write it as (2x⁴)². By following exponent rules, you should know that you have to multiply the exponents. Therefore your answer would be 4x⁸ because the exponent also needs to apply to the coefficient.
Given:
Scott can run 20 km in 85 minutes.
To find:
How long will it take Scott to run 52 km?
Solution:
Let x be the number of minutes it will take him to run 52 km.
We know that,
Using this formula, we get
...(i)
...(ii)
Equating (i) and (ii), we get
Divide both sides by 20.
Therefore, it will take 221 minutes to run 52 km.
Answer:
22.05
Step-by-step explanation:
I have a big brain very big
Answer:
Step-by-step explanation: is it addition or multiplication or what?
Answer:
The temperature of the coffee after 10 minutes will be 21.27°C.
Step-by-step explanation:
The equation representing the elapsed time, <em>m</em>, in minutes, since the coffee was left to cool, and the temperature of the coffee, <em>T</em>, measured in °C is:
Compute the temperature of the coffee after 10 minutes as follows:
Thus, the temperature of the coffee after 10 minutes will be 21.27°C.