Answer:
K = 97 degrees
Step-by-step explanation:
The four interior angles of a quadrilateral is always equal to 360 degrees.
127 + 88 = 215
(10x + 7) + (5x + 3) = 15x + 10
360 - 215 = 145
145 = 15x + 10
130 = 15x
9 = x
k = 10x + 7
k = 10(9) + 7
k = 97
Answer:
H = 58, I = 71, J = 51
Step-by-step explanation:
Set all angles equal to 180
3x - 2 + 4x - 9 + 3x - 9 = 180
Then combine like terms
10x - 20 = 180
+ 20 + 20
10x = 200
/10 /10
x = 20
Then plug in for each angle
3 (20) - 2 = 58
4 (20) - 9 = 71
3 (20) - 9 = 51
Answer:
Step-by-step explanation:
2x + 3y - x - 9
x + 3y - 9
The solutions of the quadratic equation x² - 5x - 36 = 0 are -4 and 9.
The graph is attached below.
- We are given a quadratic function.
- A polynomial equation of degree two in one variable is a quadratic equation.
- The function given to us is :
- y = x² - 5x - 36
- We need to find the solution of the quadratic function.
- To find the roots, let y = 0.
- x² - 5x - 36 = 0
- Use the quadratic formula.
- In elementary algebra, the quadratic formula is a formula that gives the solution(s) to a quadratic equation.
- x = [-b±√b²-4ac]/2a
- x = [-(-5) ± √25 - 4(1)(-36)]/2(1)
- x = (5 ± √25 + 144)/2
- x = (5 ± √169)/2
- x = (5 ± 13)/2
- x = 9 or x = -4
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The answer is a all of the points