Answer:
The cost of each notebook is $3 and the cost of each thumb drive is $14.
Step-by-step explanation:
In order to solve this question we will attribute variables to the notebook and thumb drive. The price of a notebook we will call "x" and the price of a thumb drive will be "y". We now can create equations that represents the total amount spent by each person on these items. To do that we need to take the amount of each item that was bought and multiply it by it's price.
For Troy:
4*x + 6*y = 96
For Lisa:
2*x + 4*y = 62
We now have a system of equations and we can solve them by isolate one of he variables in one of the equations and using that value on the other. Using the second equation we have:
2*x + 4*y = 62
4*y = 62 - 2*x
y = 15.5 - 0.5*x
Using this expression on the first equation:
4*x + 6*(15.5 - 0.5*x) = 96
4*x + 93 - 3*x = 96
x = 96 - 93 = 3
We can now find the value of y:
y = 15.5 - 0.5*(3) = 14
The cost of each notebook is $3 and the cost of each thumb drive is $14.
1/2 because it becomes simplified

so... if you notice, the vertex is at h,k and that'd be the origin, 0,0
so...since the directrix is "p" units from the vertex, so it'd be 2 units from 0,0
now, the parabola has an equation with a positive leading term's coefficient, namely the 1/8 is positive, thus, the parabola is opening upwards, and the directrix is "outside" the parabola, so is below the vertex
that puts the directrix 2 units below 0,0
y = -2
The slope is -1/2
Step by step
1) formula m=y2-y1/x2-x1
2) slope equals = -1+2/-8+6
3) 1/-2
4) answer is -1/2
Answer:

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<u>Remove the parentheses:</u>

<u>Combine like terms:</u>


<u>Multiply 3 and 5x = 15x:-</u>

<u>Combine like terms:</u>


<u>Expand: 3x-(2x-1)= x+1</u>

<u>Subtract 1 from both sides:</u>


<u>Add 9x to both sides:</u>


<u>Divide both sides by 10:</u>


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