Answer:
A) an equilateral triangle with acute angles (60°)
B) isn't the lengths of a triangle
C) is a right triangle
D) is a right triangle
Step-by-step explanation:
A) 2,2,2, all sides and angles are all equal
B) applying cos rule to get the angles, an angle will be zero and a triangle can't have zero angle, thus the lengths are not that of a triangle
C) it's a right triangle as the dimensions are a pythagorean triple
D) it's a right triangle as the dimensions are a pythagorean triple
Answer is D
5(6-x)/2=60, x= -18
(6-(-18) x 5) / 2 =60
Answer:
D
Step-by-step explanation:
substitute t=-3 in the equation
3(-3) squared +5(-3)+6=18
Answer:
TRUE
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
i distributed the -2 to what's in the parentheses. that equal 0. I then moved the 4 to the zero so that it becomes positive. I just assumed that you were ask for Y
