Answer:
Plot[-1 + 3^Surd[x, 3], {x, -20, 28}]
<h3>
Step-by-step explanation:</h3><h3>(2/3)x - 2 = 7</h3>
(2/3)x = 7 + 2
(2/3)x = 9
2x = 9 × 3
x = 27/2
:. x = 13 1/2
Answer:
B. (x-5)²+(y+1)² = 49
Step-by-step explanation:
An equation of a circle with center (h, k) and radius r is

We have all given information we need. Our h is 5 - Our k is -1 and our radius is 7
Substitute these values in

So the answer is B choice.
Answer:
90
Step-by-step explanation:
5x – 2y + (7x – y)
Combine like terms
12x -3y
Let x = 7 and y = -2
12(7) -3(-2)
84 +6
90
Since the sum of the measures of the angles exceed 180 degrees, 90 + 45 + 50 = 185 degrees, these measurements cannot make a triangle.
LETTER B