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MATH SOLVE
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A rectangle has a length of 34 inches less than 5 times it’s width. If the area of the rectangle is 867 square inches, find the length of the rectangle.
General
2 months ago
A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1kilogram. Assuming the weight loss happened at a constant rate, about how many pounds did the group lose each day?
General
2 months ago
PLEASE HELP ANSWER THIS QUESTION I DON'T KNOW IT AT ALL
General
2 months ago
Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a nutritionist analyzed the percentage of saturated fat for a sample of 6 brands of stick margarine (solid fat) and for a sample of 6 brands of liquid margarine and obtained the following results: Exam Image Exam Image We want to determine if there a significant difference in the average amount of saturated fat in solid and liquid fats. What is the test statistic? (assume the population data is normally distributed)
General
2 months ago
Simplify each expression. (a2b-3/a-2b2)2 a=/0 b=/0
General
2 months ago
A random sample of n 1n1equals=139139 individuals results in x 1x1equals=3737 successes. An independent sample of n 2n2equals=147147 individuals results in x 2x2equals=5858 successes. Does this represent sufficient evidence to conclude that p 1 less than p 2p1
General
2 months ago
In the past the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals. In order to determine whether there has been an increase in the average age of all the employees, a sample of 25 employees was selected. The average age in the sample was 45 years with a standard deviation of 5 years. Assume the distribution of the population is normal let α= 0.5 A, state the null and the alterative hypothesis B, test to determine whether or not the mean age of all the employees is significantly more than 40 years.
General
2 months ago
Researchers measured skulls from different time periods in an attempt to determine whether interbreeding of cultures occurred. Results are given below. Assume that both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150. n x s4000 B.C. 30 131.62 mm 5.19 mmA.D. 150 30 136.07 mm 5.35 mmWhat are the null and alternative hypotheses?Identify the test statistic, F=?The P-value is ?What is the concluion for this hypothesis test?A. Fail to reject Upper H0. There is sufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150.B. Reject Upper H 0. There is insufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150.C. Fail to reject Upper H 0. There is insufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150.D. Reject Upper H 0. There is sufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150.
General
2 months ago
The probability of observing the experiment result, a sample mean, for example, or something more unusual just by chance if the null hypothesis is true is the definition of____________. a) the test statistic b) a confidence interval. c) a p-value d) the alternative hypothesis
General
2 months ago
Find the error in the "proof" of the following "theorem." "Theorem": Let R be a relation on a set A that is symmetric and transitive. Then R is reflexive. "Proof ": Let a ∈ A. Take an element b ∈ A such that (a, b) ∈ R. Because R is symmetric, we also have (b, a) ∈R. Now using the transitive property, we can conclude that (a, a) ∈ R because (a, b) ∈ R and (b, a) ∈ R.
General
2 months ago
In ΔLMN, the measure of ∠N=90°, the measure of ∠M=17°, and MN = 20 feet. Find the length of LM to the nearest tenth of a foot.
General
2 months ago
Elena is thinking about putting $200 in a savings account that earns 4% interest compounded semiannually. She wants to keep that money in the account for 4 years. Which of the formulas below can help her calculate how much money she will have at the end of the 4 years? A. $200(1 + 0.02)8 B. $200(1 + 0.04)4 C. $200(1 + 0.02)4 D. $200(1 + 0.08)2
General
2 months ago
How are graphs used to represent patterns??
General
2 months ago
Which of the following fraction is equivalent to 0.45
General
2 months ago
angelique draws triangle ghk. if angle g=30o, g=3, ang k=4, what is the approximate length of hA. 1.2 or 5.7B. 2.2 or 4.7C. 4.7D. 5.7
General
2 months ago
victor has the map scale missing.he knows the distance from the lake to the youth center is 8 miles. on the map they are 2in. apart. what is the scale for victors map
General
2 months ago
The height of a trapezoid is 6 in. and its area is 72 in2. One base of the trapezoid is 6 inches longer than the other base. What are the lengths of the bases? Complete the explanation of how you found your answer.
General
2 months ago
The particular solution of the differential equation dy dt equals y over 2 for which y(0) = 80 is
General
2 months ago
give me the right answer and get 100and please hurryCompare the subtraction problems (6/8 − 5/8= 1/8) and (6/9 − 7/9= −1/9). Why is the answer to the firstproblem positive and the answer to the second problem negative? Check all that apply.A. In the second problem, the first fraction is less than the second fraction.B. The answer to the first problem is positive because the denominator is even.C. The answer to the second problem is negative because the denominator is odd.D. If you subtract a lesser number from a greater number, the answer is positive.E. If you subtract a greater number from a lesser number, the answer is negative.
General
2 months ago
Steel Factory Workers AgesMean: 42 Median: 38 Range: 52 Mean Deviation: 11.23Shift 118255642293854473530Shift 223195049673430594033Shift 319222440452933293959Shift 421232540351970402223The summary statistics for all of the workers at a steel factory are shown. Four sample groups were taken from each of the four shifts. For which sample group is the mean closest to the population mean?A) Shift 1 B) Shift 2 C) Shift 3 D) Shift 4
General
2 months ago
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