Jenny is solving the equation x^2-8x=9 by completing the square. What number should be added to both sides of the equation to co
1 answer:
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<span><span>-5(2b+7) + b < -b - 11</span>
<span>-10b - 35 + b < -b - 11
- 10b + b - 35 < -b - 11
-9b - 35 < -b - 11
- 9b + b < - 11 + 35
-8b < 24
</span></span>
<span><span>
b < -3
Have a nice days.........</span></span>
<span>-10b - 35 + b < -b - 11
- 10b + b - 35 < -b - 11
-9b - 35 < -b - 11
- 9b + b < - 11 + 35
-8b < 24
</span></span>
<span><span>
b < -3
Have a nice days.........</span></span>
Answer:
x=2.2
y=-3.4
Step-by-step explanation:
subtract the second from the first
-5x=-11
x=2=2
substituting by x in the first equation
so y=-3.4
Question:
Find the gradient of the line passing through (6,8) and (4,10).
Answer:
-1 is the right answer.
Step-by-step explanation:
Slope of the line = The gradient of the line
Gradient of the line is known as change in the value of y-axis by change in the value of x-axis
Gradient = ∆y\∆x