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MATH SOLVE
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For which distributions is the median the best measure of center? Select each correct answer.
General
2 months ago
Consider triangle QRS. The legs each have a length of 10 units. What is the length of the hypotenuse of the triangle?5 units units10 units units
General
2 months ago
Which is equivalent to 5 Square root of 1215^x
General
2 months ago
one letter tile is drawn from the bag and replaced 300 times. Predict how many times a consonant will not be picked
General
2 months ago
Kermit's favorite iced tea is made with 15 tea bags in every 2 liters of water. Peggy made a 12 liter batch of iced tea with 90 tea bags.What will Kermit think of Peggy's iced tea?(Choice A)AIt is too strong.(Choice B)BIt is too weak.(Choice C)CIt is just right.
General
2 months ago
A triangular prism has bases that are equilateral triangles. Which statements are true about the surface area of the triangular prism? Choose all that apply. A all three rectangular faces have the same surface areaB the surface area of each rectangular face is 66cm2 C the combined surface area of both bases is greater than the surface area of one rectangular faceD the surface area of one base is 15.6cm2
General
2 months ago
1. Derive this identity from the sum and difference formulas for cosine: sin a sin b = (1 / 2)[cos(a – b) – cos(a + b)]Calculation:1. 2. 3. Reason:1.2.3.2. Use the trigonometric subtraction formula for sine to verify this identity:sin((π / 2) – x) = cos xCalculation: 1. 2. 3. Reason:1.2.3.
General
2 months ago
A researcher wants to prove that there is a difference in the average life spans between men and women in Japan. Let mu1 = average life span of Japanese women and mu2 = average life span of Japanese men. A random sample of 10 women showed an average lifespan of 83 years, with a sample standard deviation of 7 years. A random sample of 10 men showed an average lifespan of 77 years, with a sample standard deviation of 6.4 years. Assume that life spans are normally distributed and that the population variances are equal. If alpha = .05 and the null hypothesis is mu1 – mu2 = 0, what is (are) the critical value(s) for the hypothesis test?
General
2 months ago
HELP PLEASE! Will give the Brainliest if shown work!!1.) In the figure below, ABC ~ PQR.If the area of ABC is 40 cm*2, what is the area of PQR? (Image down below)2.) A science museum has a spherical model of the earth with a diameter of 8.5 m. What is the volume of the model? Use 3.14 for and round your answer to the nearest whole number. Show your work.
General
2 months ago
Eduardo has a red 6-sided number cube and a blue 6-sided number cube. The faces of the cubes are numbered 1 through 6. Eduardo rolls both cubes at the same time. The random variable X is the number on the red cube minus the number on the blue cube. What is P(−2≤X≤1)? Enter your answer, in simplest fraction form, in the box.
General
2 months ago
In 1 h the minute hand on a clock moves through a complete circle, and the hour hand moves through 1 12 of a circle. Through how many radians do the minute hand and the hour hand move between 1:00 p.m. and 1:45 p.m. (on the same day)?
General
2 months ago
In a survey of women in a certain country (ages 20minus29), the mean height was 64.3 inches with a standard deviation of 2.77 inches. Answer the following question about the specified normal distribution. (a) What height represents the 95th percentile
General
2 months ago
simplify. rewrite the expression in the form 9^n:9^-3/9^12
General
2 months ago
HELP!!!!! 35 POINTS ASAP!!!!!!!!!!!Tension wires are attached from the top of a festival sign to the ground, 3meters from the base of the sign. The angle of depression from the top of the sign to the point where one of the tension wires is attached to the ground is 28°. How tall is the sign? Round to the nearest tenth.The sign is __________ meters tall
General
2 months ago
A fence 8 ft tall runs parallel to a tall building at a distance of 4 ft from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? (Round your answer to two decimal places.) ft
General
2 months ago
If 20% of 10% of a number is 12, what is 10% of 20% of the same number?
General
2 months ago
The baseball team needs new equipment. Company A can provide 9 helmets, 6 bats, and 12 balls for $525. Company B can provide 10 helmets, 8 bats, and 10 balls for $600. Company C can provide 8 helmets, 5 bats, and 15 balls for $500. Which system of equations matches the equipment choices available for purchase? 9x + 6y + 12z = 525 10x + 8y + 10z = 600 8x + 5y + 15z = 500 9x + 12y + 6z = 525 10x + 8y + 10z = 600 8x + 5y + 15z = 500 9x + 6y + 12z = 525 10x + 10y + 8z = 600 8x + 5y + 15z = 500 9x + 6y + 12z = 525 10x + 8y + 10z = 600 8x + 15y + 5z = 500
General
2 months ago
solve ABC c=10, B=35°, C=65%
General
2 months ago
Complete the table for the given rule y=1/4x+1
General
2 months ago
A psychologist is interested in constructing a 99% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 64 of the 708 randomly selected people who were surveyed agreed with this theory. Round answers to 4 decimal places where possible. a. With 99% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between and . b. If many groups of 708 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about percent will not contain the true population propo
General
2 months ago
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