Answer:
B (-9,−57/8)
Step-by-step explanation:
we know that
If a ordered pair is a solution of the linear equation, then the ordered pair must satisfy the linear equation
we have
<u><em>Verify each case</em></u>
Substitute the value of x and the value of y in the linear equation and then compare the results
case A) (6,17/2)
For x=6, y=17/2
Substitute
-----> is not true
therefore
The ordered pair not satisfy the equation
case B) (-9,-57/8)
For x=-9, y=-57/8
Substitute
-----> is true
therefore
The ordered pair satisfy the equation
case C) (6,-39/8)
For x=6, y=-39/8
Substitute
-----> is not true
therefore
The ordered pair not satisfy the equation
case D) (6,-8)
For x=6, y=-8
Substitute
-----> is not true
therefore
The ordered pair not satisfy the equation
Answer:
1).6cm squared
2). 36 cm squared
3).787.5
(im not sure 3 is correct)
Step-by-step explanation:
Answer:
- x² + 3x - 9
Step-by-step explanation:
standard form of a polynomial of degree 2 is
ax² + bx + c ( a ≠ 0 )
Given
- 9 + 3x - x²
= - x² + 3x - 9 ← in standard form
N - the number
14 + n = 17 |subtract 14 from both sides
n = 3