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For question 3, you needn't worry about the number of total students asked. The question is really just asking you what's 45% as a fraction, which is 9/20. This is because 45% = 45/100, divided by 5 = 9/20.
For question 6, just substitute in the values. So you do 4(7 × 4 - 3 × -7), which gives you 4(28 - -21). Two minuses make a plus, so it's just asking you to do 4 × 49 (because 28 + 21 = 49). The answer is 196.
Answer:
y = -1/3x - 4
Step-by-step explanation:
slope is change in y over the change in x
-3 + 5 = 2
-3 - 3 = -6
slope is -2/6 or -1/3
y+3 = -1/3 (x + 3)
y + 3 = -1/3x -1
y = -1/3x - 4
I graphed the given points and used Pythagorean theorem to get the value of each side of the rhombus.
Each side of the rhombus served as the hypotenuse of the imaginary right triangle formed in the graph. The diagonals formed are mutually bisecting and have cut each diagonal in equal parts.
Pls. see attached graph.