9) -6(5m + 7) – 5(-3 – 5m) = = -2 10) 6(n – 6) – 6(3n – 8) = 12 11) -2(7 – 8x) – 3x = 3(5x – 6) 12) -5(a + 4) = -5(1 + 2a) %3D 13) A submarine left Diego Garcia and traveled toward St. Vincent. Three hours later a cruise ship left traveling at 16 km/h in an effort to catch up to the submarine. After traveling for five hours the cruise ship finally caught up. What was the submarine's average speed? 14) Shanice left Kali's house and drove toward the desert at an average speed of 70 km/h. Lisa left one hour later and drove in the opposite direction with an average speed of 55 km/h. Find the number of hours Lisa needs to drive before they are 570 km apart.

Q: Which of the following equations is a quadratic equation?

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Q: 3.) 2x2 + 16x- 70 = -4 4.) x2 + 12x- 20 = 8

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Q: An equation is given, followed by one or more roots of the equation. Determine the remaining roots.…

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Q: What is an inconsistent equation? Give an example.

A: Inconsistent equation:            If a system has no solution, it is said to be inconsistent

Q: If a₁ = 5, a2 = 2 and an = 2an-1 + 2an-2 then find the value of a5.

A: If a1=5, a2=2 and an=2an-1+2an-2, then to find the value of a5.

Q: The population of a culture of bacteria is monitored over a two-hour period: At noon, the population…

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Q: Write a quadratic equation having the given solutions.   −6, −9       Write the quadratic equation…

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Q: How can you tell if an equation is an "and" or an "or"?

A: We have to explain of and ,or in equation

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.