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MATH SOLVE
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Air crew escape systems are powered by a solid propellant. The burning rate of this propellant is an important product characteristic. Specifications require that the mean burning rate must be 50 centimeters per second. The experimenter selects a random sample of n=40 and obtains an observed sample mean of the burning rate 51.3 centimeters per second and an observed sample standard deviation of the burning rate 2.0 centimeters per second. Based on a 5% type I error threshold, construct a hypothesis test and draw your conclusion.
General
4 months ago
What is the relationship between the base angles of an isosceles triangle? Explain.The base angles are complementary because their sum is 90°.The base angles are supplementary because their sum is 180°.The base angles are adjacent to the legs of the triangle.The base angles are opposite the congruent sides, and they are congruent by the Base Angles Theorem.
General
4 months ago
Julian ways his pet cat every month. The table shows how much the cat weight change each month for 3 months. What is the total change in the cat's weight for all three months?
General
4 months ago
What is the total surface area of this rectangular pyramid?9.5 ft12 ftsquare feet149153225297
General
4 months ago
Including the end zones, a football field measures 120 yds long by 53and1/3 yards wide. What is the area of a football field?
General
4 months ago
Of of the travelers arriving at a small airport, 60% fly on majorairlines, 30% fly on privately owned airlines, and the remainder fly on commer-cially owned planes not belonging to a major airline. Of those traveling on majorairlines, 50% are traveling for business, whereas 60% of those arrving on privateplanes are traveling for business and 90% arriving on other commercially ownedplanes are traveling for business reasons. Suppose that we randomly select oneperson arriving at this airport. What is the probability that the person is traveling on business?
General
4 months ago
Last summer,at a camp,the ratio of the number of boy campers to girl campers is 9:6.If there is 225 campers,how many boy campers were there?How many girl campers?
General
4 months ago
25 9 start fraction, 9, divided by, 25, end fraction of Polly's co-workers prefer tea over coffee. What percent of Polly's co-workers prefer tea over coffee?
General
4 months ago
What is length of the altitude of the equilateral triangle below?
General
4 months ago
A recipe uses 5 cups of flour for every 2 cups of sugar how much sugar is used with 6 cups of flour
General
4 months ago
If cos θ=−8/17, and 180°<θ<270°, what is tan θ?
General
4 months ago
Please help me solve this. Please show your work?What is y?
General
4 months ago
I’ll put you as brainliest A model rocket is launched from the ground with an initial velocity of100feet per second. How many seconds later does the rocket hit the ground?
General
4 months ago
At a baseball game, a vender sold a combined total of 214 sodas and hot dogs. The number of hot dogs sold was 34 less than the number of sodas sold. Findthe number of sodas sold and the number of hot dogs sold.Number of sodas sold:Number of hot dogs sold:
General
4 months ago
Please Help!! Create two radical equations: one that has an extraneous solution, and one that does not have an extraneous solution. Use the equation below as a model:[tex]a\sqrt{x+b} +c=d[/tex]
General
4 months ago
A father and his two sons wanted to measure the distance between the two tallest trees in the City Garden by their footsteps. It was winter, and there was fresh snow in the garden, so they decided to start measuring from the same tree by walking one after another straight to the other tree. The father's footstep is 32 inches long, while the same for his sons is 28 inches and 24 inches. In what distance, in feet, the three steps would overlap the first time?PLEASE SOLVE ASAP, YOU GET BRAINLIEST IF CORRECT
General
4 months ago
The frequency table below shows the amount of students that scored within a certain grade range on the final exam in English Grade No.of studentsA 4B 6C 4D 3F 3A. Calculate the relative frequencies of each grade B. Using the relative frequencies what grade did the most students receive?
General
4 months ago
Simplify: 4 - (3 + 1)2 - 6 ÷ 2 + 4 Combine like terms: 7x3 + 2x - 5x2 + 6 + x + 9 + 3x3 + 12x2 Simplify: (2x5 - 3x2 + 4) - (x5 + 2x2 + 7) Multiply: 3x2(4x3 - 2x2 + 7x - 4) Evaluate: 6x2 + 9x - 7, when x = 2 Evaluate: 3(x - y)2 + 4y - 6x + 2, when x = -1 and y = 3 Solve for x: 7x - 5 = 23 Solve for y: 7y - 4 + 3y + 6 = 9y + 8 Solve for w: 5(w - 2) + 6 = 3w - 14 Solve the following inequality for x. Then graph the solution on a number line: -4x + 2 < 2x - 6
General
4 months ago
Does anyone know this?
General
4 months ago
15) Noah and Owen paint houses together. If Noah can paint a particular house in 6 days and Owencan paint the same house in 5 days. How long will it take them to paint the house together?a) Define the variable.b) Create a rational equation.c) Solve the rational equation for how long in days it will take them to paint the house together,
General
4 months ago
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