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MATH SOLVE
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Toxaphene is an insecticide that has been identified as a pollutant in the Great Lakes ecosystem. To investigate the effect of toxaphene exposure on animals, groups of rats were given toxaphene in their diet. A study reports weight gains (in grams) for rats given a low dose (4 ppm) and for control rats whose diet did not include the insecticide. The sample standard deviation for 22 female control rats was 28 g and for 18 female low-dose rats was 51 g. Does this data suggest that there is more variability in low-dose weight gains than in control weight gains? Assuming normality, carry out a test of hypotheses at significance level 0.05.
General
3 months ago
A football player kicks a football downfield. The height of the football increases until it reaches a maximum height of 15 yards, 30 yards away from the player. A second kick is modeled by $f\left(x\right)=-0.032x\left(x-50\right)$ , where $f$ is the height (in yards) and $x$ is the horizontal distance (in yards). Compare the distances that the footballs travel before hitting the ground.
General
3 months ago
What is the value of n?n–2=10n+42Enter your answer in the box.n =
General
3 months ago
Solve for x: -2(3x – 1) > 3(2- x)
General
3 months ago
write the point-slope form of the line that passes through (1,-5) and is parallel to a line with a slope of 1. include all your work in your final answer.
General
3 months ago
Write the point slope form of the line that passes through (-8,2) and is parallel to a line with a slope of -8. include all your work in your answer.
General
3 months ago
A candy factory that produces chocolate bars claims each bar weighs 50 grams, at least that is what is printed on the label. Of course, there is bound to be a little variation. An inspector randomly chooses 9 bars from one day's output of 4000 bars. The average weight of the 9 bars is only 47 grams. The inspector wishes to test the null hypothesis that the factory is doing what it is supposed to on this day against the alternative that the company is cheating the consumer. Assume that the weights of all the candy bars that are produced follow the normal curve with a SD of 3 grams. a. Which significance test should be used?
General
3 months ago
One Saturday, a butcher sells a total of pounds of beef at $6.00 pound. She also sells some pork for $7.00 . On Sunday, she sells pounds of beef again, but at the sale price of $4.00 per pound. She also sells some pork for $9.00Given that she made the same revenue of ddd dollars each day, which of the following systems of equations can be used to find out how many pounds of beef, bbb, she sold each day?
General
3 months ago
Find the distance from point A to XZ. round to nearest 10th!
General
3 months ago
y = 3x + 3.5Graph it
General
3 months ago
Maggie and her friends are each able to recruit a certain number of people each year to sample a product. The number of people per year is represented by the function f(t) = 3(2)t. What does the t represent? How many people were recruited in year 6? t represents the year number; 36 people were recruited in year 6. t represents the year number; 192 people were recruited in year 6. t represents the number of people; 192 people were recruited in year 6. t represents the number of people; 36 people were recruited in year 6.
General
3 months ago
PLEASE HELP!!Let Events A and B be described as follows:P(A) = doing yard workP(B) = it rainingThe probability that it will rain this weekend is 68% The probability of doing yard work this weekend and it raining is 15%. If the probability of doing yard work is 53%, are doing yard work and it raining independent?A. Yes, because P(A | B) = 0.22 and the P(A) = 0.53are not equal.B. No, because P(A| B) = 0.28 and the P(B) = 0.68 are not equal.C. Yes, because because P(A| B) = 0.28 and the P(B) = 0.68 are not equal.D. No, because P(A | B) = 0.22 and the P(A) = 0.53are not equal.
General
3 months ago
what are the partial products that resault from multiplying 15×32
General
3 months ago
Please please help me out !!!!!!!!!!!!!
General
3 months ago
∠ACE is formed by two secants intersecting outside of a circle. If minor arc BD = 25°, minor arc AB = 115°, and minor arc DE = 115°, what is the measure of ∠ACE?
General
3 months ago
f(x) = 4x^2+2x+6 What is the value of the discriminant of f? How many distinct real number zeros does f have?
General
3 months ago
what is 28.96 x 9.41?what is 63.7 x 2.5?
General
3 months ago
Tom rented a truck for one day. There was a base fee of $18.99, and there was an additional charge of 75 cents for each mile driven. Tom had to pay $160.74 when he returned the truck. For how many miles did he drive the truck?
General
3 months ago
The bearing of ships A and B from a port P arev225 and 116 respectively ship A is 3.91 from ship B on a bearing of 258 calculate the distance if ship A from P
General
3 months ago
According to the graph, if only one unit was produced, the cost per unit would be $1.00. Inreality, the company would not call in its worker and start up the equipment to produce oneunit. What safeguard do you think that many manufacturers use to avoid this type of problem?15 points)
General
3 months ago
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