37.5% of her credits. 24 out of 64, divide and you get your answer. multiply by 100 to get the percentage.
Because the lines are parallel,
The width of that rhombus, or parallelogram.
If you conutined that line, they will never ever touch.
That is the meaning of parallel, and why it is a parallelogram.
Answer:
(x - 9)(x + 5)
Step-by-step explanation:
x² − 4x − 45 =
= x² + 5x - 9x - 45
= x(x + 5) - 9(x + 5)
= (x - 9)(x + 5)
It is pretty easy to eliminate the wrong answers by trying the answers in the equations.
a. 7 times 30 is way more than 4
c. 6 times 226 is way more than 172, even after subtracting 64
d. 7 times -74 is way less than 4
The appropriate choice is
... b. x=4, y=30
You can check it with your graphing calculator.
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Since you have an expression for y, you can substitute that into the second equation:
... -2x + 6(2+7x) = 172 . . . . substitute for y
... 40x = 160 . . . . . . . . . . . . eliminate parentheses, subtract 12, collect terms
... x = 4 . . . . . . this is sufficient to help you locate the correct answer