N/N atteu same day of the moll y2-xy 14 How many solutions does the system 3 D. 4 E. 2 C. 15. An infinite geometric series has common ratio 2/3 and sum S. If the first, third, and all other odd terms are doubled, and the second, fourth, and all other even terms are halved, what is the sumn of the new series? A. 1 В. 1.2S D. 0.8S E. 0.6S A. 1.6S B. 1.4S В. С. 16. Assuming that ties are allowed, what is the number of ways five contestants can be ranked, if the order of tied contestants doesn't matter? For example, A might be 1st, B and D tied for 2nd, E 4th, and C 5th, or A and D might be tied for 1st and B, C, and E tie for 3rd. Write your answer in the corresponding blank on the answer sheet. 5x +3y +z = 2 6x +5 4z = 8 Iind a+b+c. 17. If (a, b, c) is a solution to the system of equations А. -2 В. -1 С. D. 1 E. 2 18. The number whose base 15 representation is the 3-digit number abc has the 4-d representation labc in base 6. Find a + b 4 B. 5 C С. 6 D. 7 E 9. A and B play the following game: A draws a chip from a bag containing 4 gree d chips. If the chip is green, A wins; if not, A returns the chip to the bag, and B ip. If the chip is red, B wins; otherwise, B returns the chip to the bag, and the ernating draws repeat. Find the probability that A wins the game. 1 3 3 В. С. D. E. 14 7 14 7 +b2 + c2+ d2= 2500 ha How many integer solutions does the system (a +50) (b + 50) = cd

Q: 3 4) 5.4 8 4 - 1 2

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.