Answer:
A. x = 5 (Equation below)
B. AC = 9 | BD = 9
Step-by-step explanation:
A. Since we know the diagonals of an isosceles trapezoid are congruent, we know that the two bottom parts of the diagonal BD (2x - 8 and x - 4) are congruent to the diagonal AC (x + 2) . This means you can just equal them together and get the value of x:
2x - 8 + x - 4 = x + 2
3x - 12 = x + 2
3x = x + 14
2x = 14
x = 7
B. Just plug in 5 for x:
AC = x + 2 = 7 + 2 = 9
BD = 2x - 8 + x -4 = 3x - 12 = 21 - 12 = 9
If the total amount of points in a test is 140, and we want to find 10% of those points, we can do the following to figure out how much points the question is worth...
140 points x 10% = 140 x 0.1 = 14 points for the short-answer quesion.
Plug in 0 for x. This is the y slope intercept, which in your case is -2.
Then plug in 1. 2/7(1) - 2
Do it until you can predict which point on the graph it will be next.
Your range would be a list of your f(x) or y values.
Example: {5, 10, 15,...}
Your range would be a list of your x values, or the numbers you plugged in for x.
Example: {1, 2, 3,...}
6) it’s -11a^2b^(because they have the same letters plus both of them have squares and if there isn’t any number in the on the other side it means that it is 1)
7)1mn(subtract and then put the sign of the bigger number)
9)-50xy^2(addition)
10)-49ac^d(subtract and put the sign of the bigger number)
11) 7y + 6z(arrange them first and then add and subtract.)
(Hope this helps)