The correct answer to the first situation would be letter C. The situation was an experiment because a treatment was applied to the group (which in this case, is the experimental group).
The correct answer to the next question would be letter C. Angie is NOT are representative of the population in the algebra class.
If the numbers are the percentage then the answer would be 10
9x + 8y = 3
8y = -9x + 3
y = -9/8x + 3/8...slope here is -9/8. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the perpendicular slope is 8/9 (see how I flipped the slope and changed the sign)
y = mx + b
slope(m) = 8/9
(8,-7)....x = 8 and y = -7
now we sub and find b, the y int
-7 = 8/9(8) + b
-7 = 64/9 + b
-7 - 64/9 = b
-63/9 - 64/9 = b
-127/9 = b
so ur equation is : y = 8/9x - 127/9
Parallel lines have same slope.
The slope would be y=3x
Perpendicular lines have opposite reciprocal for the slope.
The slope would be y=-4/3
Answer: it obvious that you are not a good non algebraic
Step-by-step explanation:
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