Answer:9a^2+18a-72
Step-by-step explanation:
9(a+1)^2-81
9(a+1)(a+1)-81
Open brackets
9(a^2+a+a+1)-81
9(a^2+2a+1)-81
9a^2+18a+9-81
9a^2+18a-72
Answer:
Step-by-step explanation:
Hi there!
Linear equations are typically organized in slope-intercept form: 
where m is the slope and b is the y-intercept (the value of y when x is 0)
<u>1) Determine the slope (m)</u>
Plug in the two given points (0,-5) and (5,1)
Therefore, the slope of the line is 
. Plug this into :
<u>2) Determine the y-intercept (b)</u>
On the graph, we can see that when x is 0, y is equal to -5 (we're also given the point (0,-5). Therefore, the y-intercept of the line is -5. Plug this back into the equation:
I hope this helps!
Answer:
Step-by-step explanation:
Simplifying
26x = 74
Solving
26x = 74
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '26'.
x = 2.846153846
Simplifying
x = 2.846153846x
this is google respond
=74/26
x=37/13 this is mines mak me brainest plz
Answer:
In total, the four 7 packages would cost $9.09. However individually they would cost $1.30. Hope this helps!
Answer:
not sure different schools have different systems
Step-by-step explanation:
