For #1 you have one leg of a right triangle measuring 4000 (the height of the mountain) and the other leg is 3000 (the distance that Mario is from Jenna). The angle of elevation is the one on the base of the triangle across from the right angle. To find the measure of the angle, use the tangent ratio: tan(A)=4000/3000, which could be simplified to tanA = 4/3. Do that on your calculator using the inverse tangent function to get that the angle of elevation from Mario to Jenna is 53 degrees.
For #2 you have another right triangle situation where the length of the hypotenuse is 20 and the base leg is 10. You are finding again the base angle across from the right angle. Use the cosA=10/20, aka cosA=.5. Again use the inverse cos function on your calculator to find the angle in question is 60 degrees.
Answer:
1/4 is correct, or .25 in decimal form
Step-by-step explanation:
10
10
10
10
6
should be the answer
Answer:
d. Two complex solutions
Step-by-step explanation:
We have been given a trinomial 
and we are supposed to predict the type of solutions of our given trinomial.
We will use discriminant formula to solve for our given problem.
, where,
,
,
Conclusion from the result of Discriminant are:
Upon substituting our given values in above formula we will get,
Since our discriminant is less than zero, therefore, out given trinomial will have two complex solutions and option d is the correct choice.
Answer: x =6
Step-by-step explanation:
