Answer:
Step-by-step explanation:
question no . 5
ratio of angle L
take angle as reference angle
using cos rule
cos L = base / hypotenuse
= 4/5
ratio of angle N
take angle N as reference angle
using sin rule
sin N = opposite / hypotenuse
= 4/5
for measure of angle L
cos L = 4/5
cos L = 0.8
L =
L = 36.9
for meanure of angle N
sin N = 4/5
sin N = 0.8
N =
N = 53.1
m = amount of money you receive
You need at least $40, so that means you need m = 40 or more
So which is the same as saying
. You flip both sides and also flip the inequality sign as well.
At the same time, your parents won't give you more than $50. So the largest m can get is m = 50. This means
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Combine and
to get the compound inequality
This represents all the possible values of m. We see that m can get as small as m = 40, or as large as m = 50, or anything in between.
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Answer: