1. What is the equivalent mathematical sentence of the statement "fifteen less than twice a number isat most 10"?A. 2x – 15 < 10В. 2х — 15 2 10C. 15 – 2x < 10D. 15 – 2x < 102. What are the solutions of quadratic inequality x? + 3x + 2< 0?А. — 2 s x< -1 В.-2 s x< 1D. x< -2 or x s 1C. x< -2 or x >-13. Which inequality's solution is shown by this graph?Mathilits.comА. х + 3x > 0В. х? + 3х <0С. х? — 3х > 0D. x? – 3x < 04. Which graph is being described by the inequality's solution x < -4 or x > 1?А.C.1-4В.D. +-41-41.5. Write the solutrui set of quauratic inequality x? – 3x – 18 = u in inter vai ilotation.A. [-3,6]B. (-3,6)C. (-00, –3] or [6, +∞)D. [-0, -3] or [6, +∞] 21. The sum of two numbers is 11. The difference of their squares is 11. What are the numbers?C. 3 and 8A. 4 and 7B. 5 and 6D. 2 and 922. The altitude of a triangle is 3 cm. less than the base. The area of the triangle is 35 squarecentimeters. How long is the base?A. 5 cmВ. 7 сmC. 8 cmD. 10 cm23. Arlyn takes 3 more hours than Amy to do the work alone. What expression represents the amountof work per hour done by Arlyn?A. !В. 1C.D. -x+3x+524. Charlie can construct 100 identical boxes in two days less than Cholo. If they work together, theycan finish the work in 52 days. How many days will it take Charlie to finish 100 boxes alone?А. 5В. 6С. 7D. 825. Pump A can fill a pool in 2 hours less than pump B. Together, the pumps can fill the pool in 2hours and 24 minutes. How long will it take pump A to fill the pool alone?A. 4 hoursB. 5 hoursC. 6 hoursD. 7 hours

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Answered: 1. What is the equivalent mathematical…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter25: Achievement Review—section Two

Section: Chapter Questions

Problem 25AR: Engine pistons and cylinder heads are made of an aluminum casting alloy that contains 4% silicon,...

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Engine pistons and cylinder heads are made of an aluminum casting alloy that contains 4% silicon, 1.5% magnesium, and 2% nickel. Round the answers to the nearest tenth kilogram. a. How many kilograms of silicon are needed to produce 575 kilograms of alloy? b. How many kilograms of magnesium are needed to produce 575 kilograms of alloy? c. How many kilograms of nickel are needed to produce 575 kilograms of alloy?

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