CALLING THE BRAINIEST OF BRAINS (: this is a tough one please include work because I'd like to actually understand the problem, and also I have to show work on this assignment.

GIVE EXACT ANSWERS

1) sin (A-B)

2) cos (A-B)

3) tan (A-B) (dont rationalize the denominator please)

4) what quadrant of the unit circle is angle (A-B) in?

Of . 3x+4y+4z=4, 5x+7y+3z=5 4x+5y+7z=7

An isosceles triangle has two sides of equal length, a, and a base, b. the perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7. if we recall that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side, which lengths make sense for possible values of b? select two options.

Which similarity statement describes the polygons? △mka∼△lrt △kma∼△trl △kam∼△ltr △akm∼△rtl two triangles are shown. triangle a m k and triangle t r l. angle a is congruent to angle r. angle k is congruent to angle t. angle m is congruent to angle r. a k is 5 centimeters. a m is 4 centimeters. m k is 6 centimeters. l t is 9 centimeters. t r is 7.5 centimeters. l r is 6 centimeters.