Solve each quadratic inequality and graph the solution on a number line. 1. y² −17y + 70 < 0
2. x(x +1) >11² − 5x
3. 2x² ≤ 5x – 2
4. b(b + 3) ≥ −2
5. y² −17y + 70 < 0
6. x²+ 9x + 13 > −7
7. a² + 3a + 2 < −3(a + 2)
8. 10 − 9y ≥ −2y²
9. a² ≤ 4(2a − 3)
10. x²+ 9x + 13 > −7

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Me because some of question i don’t understand

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in