Answer:
2.25
Step-by-step explanation:
I think it is this in fraction form 2 1/4
6k + 16 = -2
-16. -16
= 6k = -18
-18 ÷ 6 = -3
k = -3
Answer:
7 Units
Step-by-step explanation:
Answer:
60 cm³
volume of triangular prism : area of base * Length
Given:
- angle between 4 cm and 3 cm : 90°
Find area of base:



Volume :
Add 9 to both sides to form a perfect square trinomial:
x² + 6x = 7
x² + 6x + 9 = 16
x² + 2•x•3 + 3² = 16
(x + 3)² = 16
(recall that (a + b)² = a² + 2ab + b²)
Now solve for x. Taking square roots on both sides, we get
x + 3 = ± √16
x + 3 = ± 4
x = -3 ± 4
so the two solutions are x = -7 and x = 1.