Answer:
1.) 
≈ 3.652
2.) I would say something about how the A in front of cos in the equation would change to 90, rather than stay 75 (in the equation for the step by step), but it would be easier to just use the Pythagorean theorem.
Step-by-step explanation:
I think we may have the same class so hopefully this helps:
1.) 
--> law of cosines formula.
--> plugged in numbers; when you draw the triangle, the included angle would be A, and the opposite side would be a. B and b, and C and c are opposite each other. In this case, a is the hypotenuse.
--> in between steps.
--> more simplifying.
--> answer
2.) This one is just an explanation: The 75 in the equation is the given angle, which is a. If this changes, it would just change in the equation too. And obviously, if it's 90 degrees, you can just use Pythagorean theorem a^2+b^2=c^2.
Good luck! :)
The second one because the denominator is smaller meaning the second term is smaller and the first is bigger 2/3 > 2/4
Answer:
15/79
Step-by-step explanation:
or in Alternate form is X= 0.1898734177215
Answer
That doesnt make a complete triangle.
Step-by-step explanation:
The hypotenuse cannot be the same length as the other two sides of the triangle.
Answer:
B. (12.0, 85.0) There were 12.0 pounds of peanuts and 85.0 pounds of pecans sold at the fair
Step-by-step explanation:
Subtract the first equation from the second:
1.85n = 157.25
n = 157.25/1.85 = 85 . . . . . divide by the coefficient of n
Only one answer choice has 85 pounds of pecans—the one shown above.
