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MATH SOLVE
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Zohar is using scissors to cut a rectangle with a length of 5x – 2 and a width of 3x + 1 out of a larger piece of paper. Which expression can be used to find the perimeter of the rectangle and what is the perimeter if x = 4?
General
4 months ago
If p(x) = 2x2 – 4x and q(x) = x – 3, what is ?2x2 – 4x + 122x2 – 16x + 182x2 – 16x + 302x2 – 16x + 15
General
4 months ago
Classify triangle ABC by its sides if side AB = 6x, side AC = 4x + 6 and side BC = 8x + 3. The perimeter of triangle ABC is 63. Show all your work.
General
4 months ago
A square pool has volume 2,187 cubic feet and depth 9 feet. A couple builds a fence 3.5 feet high around the pool. How many square feet of fencing around the pool?
General
4 months ago
Many firms use on-the-job training to teach their employees computer programming, Suppose you work in the personnel department of a firm that just finished training a group of its employees to program, and you have been requested to review the performance of one of the trainees on the final test that was given to all trainees. The mean and standard deviation of the test scores are 80 and 5, respectively. Assuming nothing is known about the distribution, what percentage of test-takers scored better than the trainee who scored 90? Answer 1 Point lKeypadTables At least 75% At least 25% At most 25% Approximately all None of the above
General
4 months ago
Does the following system have a unique solution? Why?A) No, because the determinant of the coefficient matrix is 0.B) No, because the determinant of the coefficient matrix is 12.C) Yes, because the determinant of the coefficient matrix is 0.D) Yes, because the determinant of the coefficient matrix is 12.
General
4 months ago
On a coordinate plane, a curved line with minimum values of (negative 2, 0) and (2.4, negative 51) and a maximum value of (negative 0.75, 6), crosses the x-axis at (negative 2, 0), (0, 0), and (3.5, 0), and crosses the y-axis at (0, 0). Which statement is true about the end behavior of the graphed function?
General
4 months ago
Joey says that triangle XYZ is obtuse. Robin disagrees because there are more acute angles then there are obtuse angles, therefore, it must be acute. Is either one of them correct? Explain your reasoning.
General
4 months ago
The length and width of a rectangular room are measured to be 3.955±0.005m. Calculate the area of the room and its uncertainty in square meters.
General
4 months ago
devin paid $30 to be a member of the fox lake gym.when he takes the boxing class it costs him $2 per class. jared is not a member of the gym and it costs him$5 for the same class. how many classes would it take for devins total cost to equal jareds total cost?
General
4 months ago
10 min left please help!
General
4 months ago
Point B is between A and C. Solve for x, then find AB and AC. Show all work for full credit:AB = 5x + 2AC = 12x + 7BC = 26
General
4 months ago
(PLEASE HELP)When solving 20x+5y=40 for y which statement below describes the method of step 2
General
4 months ago
So I need help please!!!!!!!
General
4 months ago
Factor each expression completely:a. 9x4 − 16x2b. 2x3 + 5x2 − 8x − 20c. x3 + 3x2 + 3x + 1d. 8x3 − 1
General
4 months ago
What is the other square root of 119 + 120i?
General
4 months ago
Find two rational expressions a / b and c / d that produce the result x − 1 / x2 when using the following operations. Answersfor each type of operation may vary. Justify your answers.a. Additionb. Subtractionc. Multiplicationd. Division
General
4 months ago
Washington Middle School's school flag has a height: width ratio of 12:27If the school flag is 32 inches high, what is its width?If the school flag is 48 inches wide, what is its height to the nearest tenth of an inch?
General
4 months ago
What is the result when x^3-5x^2-18 is divided by x+3?
General
4 months ago
Suppose that type A blood is needed from donors. If 40% of donors have type A blood and you want to estimate the probability that it will take at least four donors to find one with type A blood, how could you simulate a blood donor having or not having type A Blood?
General
4 months ago
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