The correct answer, I believe is 13230, hope it helps!!
Answer:
x = 9
Step-by-step explanation:
-2x = 18 - 4x
-2x + 4x = 18
2x = 18
x = 18/2
x = 9
The correct answer is B:2,154
Step-by-step explanation:
I just took the test.
To find the perimeter:
2(length) + 2(width) = 2(12) + 2(6) = 24 + 12 = 36
The perimeter is 36.
Answer:
See below ~
Step-by-step explanation:
(a) To find y-intercept :
- y = -x² + 2x + 15
- y = -(0)² + 2(0) + 15
- y = 15
- M is : (0, 15)
(b) Finding x-intercepts :
- 0 = -x² + 2x + 15
- -x² + 5x - 3x + 15 = 0
- x(-x + 5) + 3(-x + 5) = 0
- (x + 3)(-x + 5) = 0
- x + 3 = 0 ⇒ x = -3
- -x + 5 = 0 ⇒ x = 5
- P and Q are : (-3, 0) and (5, 0)
(C) Finding vertex :
- Vertex is (h, k)
- h = -b/2a = -2/2(-1) = 1
- k = -(1)² + 2(1) + 15
- k = -1 + 2 + 15
- k = 16
- The maximum point is : (1, 16)