Answer:
Step-by-step explanation:
<u>The goal of the question</u>
Find the value of 2abcosC
<u>Given information</u>
a = 4
b = 3
c = 2
<u>Given formula (Law of Cosine)</u>
<u>Substitute values into the formula (Leave 2abcosC as it is)</u>
<u>Simplify the exponents</u>
<u>Simplify by addition</u>
<u>Add 2abcosC on both sides</u>
<u>Subtract 4 on both sides</u>
Hope this helps!! :)
Please let me know if you have any questions
Hello!
Robin can clean 72 rooms in 6 days. How many rooms can Robin clean in 9 days?
We have a proportional magnitude (directly proportional), if we increase the number of days for cleaning, obviously we will have more rooms cleaned, then:
clean rooms __________ days
72 ----------------------------------- 6
y ------------------------------------- 9
multiply the means by the extremes
Answer:
108 clean rooms in 9 days
________________________
I Hope this helps, greetings ... Dexteright02! =)
