Since you are writing an inequality, you will want to look for the sign you need to write in place of the equal sign. Since, in the context, it states "less then 60 dollars", you will need to use the < sign. Next, you will need to find the main value, 200, and put it on the left sign of the inequality sign. Since you pay the friend 12 dollars per week, you will want to subtract 12x from 200. Your equation should now be :
200 - 12x < 60
You would then solve. help any?
Answer:
Most likely he drew a triangle. Or you can add any more context that is missing from this question.
Step-by-step explanation:
SOH CAH TOA
s = opposite/ hypotenuse c= adjacent/hypotenuse t= opposite/adjacent
the side opposite from the angle is the " opposite "
the longest side is the "hypotenuse"
the side thats left over is the adjacent
for example for question one:
the given angle is 38 with a given opposite length of 12.5 so if you are trying to figure out the hypotenuse you'd plug into the calculator sin(38)12.5 this would give you the length of the hypotenuse. if you are trying to find the adjacent angle you would use tan(38)12.5 i hope this helps. i loved learning trigonometry in geometry!
B. 65cm, 72 cm, 97 cm
65 squared+72 squared=97squared
2(5x+7)+8x-7=27
We move all terms to the left:
2(5x+7)+8x-7-(27)=0
We add all the numbers together, and all the variables
8x+2(5x+7)-34=0
We multiply parentheses
8x+10x+14-34=0
We add all the numbers together, and all the variables
18x-20=0
We move all terms containing x to the left, all other terms to the right
18x=20
x=20/18
x=1+1/9