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MATH SOLVE
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General
The speed of sound is 346 m/s. If a sound wave travels at a frequency of 55 Hz, what would its wavelength be
General
4 months ago
Determine two pairs of polar coordinates for the point (5, 5) with 0° ≤ θ < 360°. a. (5 square root 2, 225°), (-5 square root 2, 45°) b. (5 square root 2, 315°), (-5 square root 2, 135°) c. (5 square root 2, 135°), (-5 square root 2, 315°) d. (5 square root 2, 45°), (-5 square root 2, 225°)Find an equation in standard form for the hyperbola with vertices at (0, ±9) and foci at (0, ±10). a. y squared over 81 minus x squared over 100 = 1 b. y squared over 81 minus x squared over 19 = 1 c. y squared over 19 minus x squared over 81 = 1 d. y squared over 100 minus x squared over 81 = 1
General
4 months ago
what is the factor of y^3-9y^2+y-9=0
General
4 months ago
The following are the last 10 run scores Colin got in cricket: 20, 29, 34, 19, 8, 12, 0, 23, 29, 14 a) Work out Colin's mean score. b) Colin plays cricket again on Sunday. He gets 32 runs. What is his new mean score? Give your answers as decimals.I need it!
General
4 months ago
Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, Q1 at 11.5, median at 12.5, Q3 at 13.5, max at 15 The mean, because the data distribution is symmetrical The mean, because the data distribution is skewed to the left The median, because the data distribution is skewed to the left The median, because the data distribution is skewed to the right
General
4 months ago
please help ASAP.. Question below
General
4 months ago
Simplify. 4√6+2√6−√6A- 5√18B-5√6C-6√6D- 6√18
General
4 months ago
A trailer will be used to transport several 40-kilogram crates to a store. The greatest amount of weight that can be loaded onto the trailer is 1,050 kilograms. An 82-kilogram crate has already been loaded onto the trailer. What is the greatest number of 40-kilogram crates that can also be loaded onto the trailer?
General
4 months ago
Choose all of the statements that correctly describe the transformation rule. Reflection over x-axis: (x, y) ? (?x, y) Reflection over y-axis: (x, y) ? (x, ?y) Rotation of 90° counter-clockwise about origin: (x, y) ? (?y, x) Rotation of 180° counter-clockwise about origin: (x, y) ? (?x, ?y) Rotation of 270° counter-clockwise about origin: (x, y) ? (y, ?x)
General
4 months ago
What is the measure of ∠JSM?A) 12° B) 17° C) 23° D) 31°
General
4 months ago
Match the expressions to their solutions or equivalents.
General
4 months ago
A tire company has developed a new type of steel-belted radial tire. Extensive testing indicates the population of mileages obtained by all tires of this new type is normally distributed with a mean of 40,000 miles and a standard deviation of 4,000 miles. The company wishes to offer a guarantee providing a discount on a new set of tires if the original tires purchased qualify the guarantee mileage. What should the guaranteed mileage be if the tire company desires that no more than 2 percent of the tires will fail to meet the guaranteed mileage? (2 points)
General
4 months ago
The National Center for Education would like to estimate the average student debt for the class of 2013 for the state of Ohio with a 95% con dence interval and a margin of error within plus or minus $2,000. Assuming the standard deviation for student debt in this state is $9,000, the required sample size is:
General
4 months ago
In △ABC, m∠A=23°, a=10, and b=13. Find c to the nearest tenth.
General
4 months ago
Aâ 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her leftâ hand, and then she asked the therapists to identify the selected hand by placing their hand just under her hand without seeing it and without touching it. Among 283 âtrials, the touch therapists were correct 124 times. Use a 0.10 significance level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists areâ effective?
General
4 months ago
Martha wrote an example of a quadratic function for a homework assignment. The function she wrote is shown. f(x) = 5x3 + 2x2 + 7x – 3 What possible changes can Martha make to correct her homework assignment? Select two options. The first term, 5x3, can be eliminated. The exponent on the first term, 5x3, can be changed to a 2 and then combined with the second term, 2x2.The exponent on the second term, 2x2, can be changed to a 3 and then combined with the first term, 5x3. The constant, –3, can be changed to a variable. The 7x can be eliminated.
General
4 months ago
Let a and b be real constants such that \[x^4 ax^3 3x^2 bx 1 \ge 0\]for all real numbers x. Find the largest possible value of a^2 b^2.
General
4 months ago
A stadium staircase with 150 steps is numbered from 1 to 150. Jan starts on step 130 and steps down to step number 127, then to step number 124, and continues downward to step 13 stepping only on every third step. Jen starts on step number 3 and steps up to step number 7, then to step number 11, and continues upward to step 139 stepping only on every fourth step. How many steps were stepped on by both Jan and Jen (not necessarily at the same time)?
General
4 months ago
Given triangle ABC with sides AB = 3x + 4 , BC = 2x + 5 , and AC = 4x , determine the values of x such that triangle ABC exists
General
4 months ago
Which are points on the graph of y = 1.5+ [x]? Select three options(-4.5, -2.5)(-0.8,0.5)(7.9, 9.5)(4.5, 6)(1.3, 3.5)
General
4 months ago
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