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4cos^2(theta)+2sin(theta)=2
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9 months ago
What is the solution and justification to the following -4z>-64.4
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9 months ago
Mr. Thomas spent $1,600 of his savings on a television set and 2/5 of the remainder on a refrigerator. He had 1/3 of his original amount of savings left. What was the cos of the refrigerator?
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9 months ago
How much would $200 invested at 6% interest compounded annually beworth after 6 years? Round your answer to the nearest cent.A(t) = P(1+OA. $286.67OB. $283.70Oc. $272.00OD. $212.30
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9 months ago
A right triangle has a hypotenuse length of 13 units. One leg has a length of 12 units. Which equation can be used to determine the length of the other leg?Group of answer choicesLaTeX: a^2=12^2+13^2 a 2 = 12 2 + 13 2LaTeX: a=\sqrt{13^2-12^2} a = 13 2 − 12 2LaTeX: a^2=12^2-13^2 a 2 = 12 2 − 13 2LaTeX: a=\sqrt{12^2+13^2} a = 12 2 + 13 2
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9 months ago
The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence?A: 14/13B: 25/7C: 4
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9 months ago
A 6000-seat theater has tickets for sale at $28 and $40. How many tickets should be sold at each price for a sellout performance to generate a total revenue of $189600?
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9 months ago
I really need help understanding this! Please help.Find the measures of all the numbered angles in the figure below. angle 1= ____angle 2= ____angle 3=____angle 4 _____angle 5= _____angle 6= _____angle 7=_____
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9 months ago
Zoe is comparing two local yoga programs. Yo-Yoga charges a $35 registration fee and $90 a month. Essence Yoga charges a registration fee of $75 and $80 per month. After how many months will the 2 programs be the same?
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9 months ago
Abby Matthew store manager for Sears does not know how to price a refrigerator that cost $900 Abby knows her boss wants a 40% markup on cost When should the price of the refrigerator be?
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9 months ago
State DMV records indicate that of all vehicles undergoing emissions testing during the previous year, 70% passed on the first try. A random sample of 200 cars tested in a particular county during the current year yields 124 that passed on the initial test. Does this suggest that the true proportion for this county during the current year differs from the previous statewide proportion? Test the relevant hypotheses using a ¼ .05.
General
9 months ago
For each year t, the population of a forest of trees is represented by the function A(t)= 115(1.025)^t. In a neighboring forest, the population of the same type of tree is represented by the function B(t)=82(1.029)^t. Assuming the population growth models continue to represent the growth of the forests, which forest will have a greater number of trees after 100 years? By how many?
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9 months ago
Explain to your classmates the purpose of a critical value. What is it used for? Also, explain the difference in a one-tail test and two-tailed test. What causes these to be different and where would you use a one-tail test instead of a two-tailed test? Significance leads to the importance of testing. What is the purpose of the null hypothesis? What is the purpose of the alternative hypothesis? Explain what inferences or decisions you are able to make and not make from the tes
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9 months ago
2y=5x+1Not a direct variationDirect variation, constant of variation is -Direct variation, constant of variation isDirect variation, constant of variation is 1--
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9 months ago
A package holds 30 batteries.How many batteries are in 14 packages
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9 months ago
come quic 5 qts .. pics provided !! answer correctly plz!!
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9 months ago
Mary's family went to Disneyland. Her mom drove 75 miles an hour and her dad drove 60 miles an hour. If they drove for a total of 1710 miles, how many hours did each one of the drive?
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9 months ago
Statistics can help decide the authorship of literary works. Sonnets by a certain Elizabethan poet are known to contain an average of μ = 8.9 new words (words not used in the poet’s other works). The standard deviation of the number of new words is σ = 2.5. Now a manuscript with six new sonnets has come to light, and scholars are debating whether it is the poet’s work. The new sonnets contain an average of x~ = 10.2 words not used in the poet’s known works. We expect poems by another author to contain more new words, so to see if we have evidence that the new sonnets are not by our poet we test the following hypotheses.H0 : µ = 8.88 vs Ha : µ > 8.88Give the z test statistic and its P-value. What do you conclude about the authorship of the new poems? (Let a = .05.)Use 2 decimal places for the z-score and 4 for the p-value.a. What is z?b.The p-value is greater than?c.What is the conclusion? A)The sonnets were written by another poet or b) There is not enough evidence to reject the null.
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9 months ago
An airplane with room for 100 passengers has a total baggage limit of 6000 lb. Suppose that the total weight of the baggage checked by an individual passenger is a random variable x with a mean value of 49 lb and a standard deviation of 18 lb. If 100 passengers will board a flight, what is the approximate probability that the total weight of their baggage will exceed the limit? (Hint: With n = 100, the total weight exceeds the limit when the average weight x exceeds 6000/100.) (Round your answer to four decimal places.)
General
9 months ago
Confidence Interval and Hypothesis Test on the Proportion 1. A composites manufacturer is having serious problems with porosity in their parts. A Quality Engineer samples 300 parts and finds 58 defective. (a) Test the hypothesis that defective rate (proportion defective) exceeds 15%. Test at α = 0.05. What is the parameter of interest? What assumptions are made? Show mathematical evidence to support assumption.
General
9 months ago
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