kozy

Most popular questions and responses by kozy
1. geomerty

The following triangles, Ä ABC and Ä DEF, are congruent. abc 67.38degree 12cm lenght 22.62degree b5cm,l,13cm Find the lengths of all missing sides and measures of all angles for both triangles. Include correct units with each of your answers. First

2. math

A recreation room has the following dimensions.12ft,30ft,8ft,8ft. Carpeting will cost \$1.50 a square foot. How many square feet of carpet will be needed and how much will it cost? Include correct units at each stage within your solution.

3. math

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below. Grade Number A 45 B 180 C 210 D 95 F 65 I 5 If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical

4. math

Determine if the argument is valid or invalid. Give a reason to justify answer. If it is cold, then you need a coat. You do not need a coat. It is not cold. (Points : 2) Valid by the law of detachment Valid by the law of contraposition Invalid by fallacy

5. college math

Find the perimeter and area of a right triangle if the shortest side is 20 mm. and the longest side is 52 mm. Include correct units with each part of your solution.

6. math

Given the quadratic function f(x) = 16x^2 – 64x + 64, find a value of x such that f(x) = 16.

7. math

Given the quadratic function f(x) = 16x2 – 64x + 64, find a value of x such that f(x) = 16.

8. math

Factor the expression 4x^2-20xy+25y^2 into a product of binomials

9. math

multiply (-x-2)by (-x2 + 4x – 2)

10. algbera

Multiply -x – 2 by -x2 + 4x – 2

11. algbera

In solving the equation (x + 3)(x + 1) = 48, Eric stated that the solution would be x + 3 = 48 => x = 45 or (x + 1) = 48 => x = 47 However, at least one of these solutions fails to work when substituted back into the original equation. Why is that? Please

12. algebra

A 125-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and

13. aglbera

A 125-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and

14. algebra

Essay; show all work. Bob’s Barber Shop estimates their gross revenue for the second quarter to be given by the polynomial 7x3 + 6x2 – 6x – 3. The shop estimates their costs for that quarter to be given by 6x2 – 9x + 9. For the second quarter, find

15. bio1

What does it take to be a living organism?

16. math

In how many ways can 8 instructors be assigned to five sections of a course in mathematics

17. math

how do you explain this questionA mini license plate for a toy car must consist of a letter followed by two numbers. Each letter must be a T, O or Y. Each number must be a 4 or 6. Repetition of digits is permitted. Use the counting principle to determine

18. math

Find the exact value of the volume of a can of green beans with a diameter 8 centimeters and height of 12 centimeters. Include correct units with your solution. Use "pi" in place of the pi symbol.

19. math

Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^-3

20. math

multiply -x^2by-x^2 + 4x – 2

21. math

Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^-3

22. aglbera

Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^-3

23. aglbera

Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^2 Express in terms of i. 2ã-36

24. algbera

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

25. algebra

Megan factored the expression3x^2-23x+14 as (x-2)(3x-7) . But when Jacob applied the FOIL principle and multiplied out (x-2)(3x-7) , he got 3x^2-13x+14 ; thus, Megan’s solution does not appear to check. Why is that? Please help Megan to understand this

26. math

The area of a rectangular athletic field is represented by the expression -15x^5+75y^3-30xy square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense “length times width”) of the athletic field. Include

27. bio 1

What factors apart from acid rain could be killing trees?

28. math

Essay; show all work. A community 5K run will award \$50 to the winner. 35 people enter the race, and they each pay an entry fee of \$20. Assuming they are all equally likely to win, what is a fair price for the competition? Round to the nearest cent

29. college math

Construct a truth table for ~q p

30. math

Given the following sets, select the statement below that is NOT true. A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t}, E = {t, e, a}

31. math

Can the word "RENTS" be played from the letters A, E, O, N, R, S, T as the first move in a Scrabble game? Explain your answer.

32. math

Multiply -x – 2 by-x^2 + 4x – 2

33. math

Use polynomial long division to divide -9x3 – 18x2 – 11x – 2