Answer: First I suggest that you write out the all the proportions which govern the 3 right triangles involved.
Once you do that you will find this one:
PQ/PS =PR/PQ
PR=PS+SR
Substitution will give you this quadratic:PQ2=PS2+PS*SR
144=PS2+7PS which has only one solution which make sense, namely 9
Then QS=sqrt(144-81)
Step-by-step explanation:
Answer:
1. Brand 1 has a better unit price of (about) $2.14.
2. Brand 1 is the better deal.
$2.14/lb is the unit price of this brand.
Step-by-step explanation:
Question 1:
B1: $12.19 / 5.7 lbs = about $2.14
B2: $2.15
$2.14 < $2.15
Answer:
Option 1
Step-by-step explanation:
The answer to your question is 300 and 10
(-3,-2) is in the shaded region
(-7,5) is not in the shaded region ( is on a dotted line which is not considered in the region)
(2,-5) is not in the shaded region (it is in the region for 1 equation but not for both equations)
(-14,6) is in the shaded region
