We know the bottom triangle is a 45, 45, 90 triangle, so the hypotenuse is √2 times the value of the legs:
(√2)(√2)
=√4
=2
Now, we can use this to solve for y. The top triangle is a 30, 60, 90 triangle. The side we found above is the side across from the 30 degree angle. The side opposite the 60 degree angle is √3 times the side across the 30 degree angle. Therefore, we can solve for y by multiplying 2 by √3
y=2√3
Answer:
Demarcus is right the phone will cost $345
Step-by-step explanation:
15% of 300 = 45
300+45=345
Answer:These points lie on a line with slope, or constant increase, of 3. Substitute this slope and the point (1, 4) in the point-slope form of the equation of a line.
Step-by-step explanation:
These points lie on a line with slope, or constant increase, of 3. Substitute this slope and the point (1, 4) in the point-slope form of the equation of a line.
21. D. is the answer. Angle Q is 75 degrees. X=30. The triangle is an isosceles angle so therefore there are 2 angles are congruent to each other, Angle R and Angle Q. All three of the angles should add to 180 degrees.
Multiply the upper system by -4: