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Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and shipping, to purchase 6.3 total pounds of nuts. How many pounds of almonds did Christopher purchase?
General
10 months ago
A delivery truck driver charges a fixed base price of $6 for 2 miles. After 2 miles, he charges an additional $2 for every mile. After 6 miles, he charges an additional $4 for every mile. Describe the cost of the delivery truck between 1 mile and 2 miles.
General
10 months ago
metre1. A ferry operator takes tourists to an island,The operator carries an average of 500people per day for a round-trip fare of $20,The operator estimates that for each $1increase in fare, 20 fewer people will takethe trip. What fare will maximize thenumber of people taking the ferry?
General
10 months ago
Find the volume of the solid cut from the thick-walled cylinder 1 less than or equals x squared plus y squared less than or equals 2 by the cones z equals plus or minus StartRoot 4 x squared plus 4 y squared EndRoot.
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10 months ago
A salesman used three types of order forms: A, B, C. He used 40 of Form A. Of Form B he used four times as many as Form A plus 1/2 as many as Form C. He used as many of Form C as Form A plus 1/2 as many as Form B. Altogether, how many forms did he use? Clear 0A. 440 B. 200 C. 250 D. 320 E. 500
General
10 months ago
Which sequence of transformations creates a similar but not congruent triangle? (5 points) Rotation and reflection Reflection and translation Translation and rotation Dilation and reflection
General
10 months ago
Match the following equation to the correct situation.30%(b - 18) = 30%b - 5.4 A. Last month's electricity bill was 5.4 kW-h less than 30% of this month's bill. B. The number of songs available for download from 30% of b artists. C. The number of cups of coffee thrown away by 30% of b senators during 5.4 speeches. D. The amount of chili eaten from 30% of 5.4 less than b bowls.
General
10 months ago
ninety percent of the ninth grade students at richbartville high school.take algebra. if 450 ninth grade student take algebra, how many ninth grade student are at richbartville high school?
General
10 months ago
A cyclist travels 20 miles in the same amount of time it takes a hiker to walk 6 miles. The rate of the cyclist is 7 mph faster than the rate of the hiker. Find the rate Of the cyclist.
General
10 months ago
Six friends create a website. The website earns money by selling banner ads. The site has 5 banner ads. It costs $120 a month to operate the website. A banner add earns 0,005 per click. Write a linear equation that represents the monthly income
General
10 months ago
The authors of a paper describe an experiment to evaluate the effect of using a cell phone on reaction time. Subjects were asked to perform a simulated driving task while talking on a cell phone. While performing this task, occasional red and green lights flashed on the computer screen. If a green light flashed, subjects were to continue driving, but if a red light flashed, subjects were to brake as quickly as possible. The reaction time (in msec) was recorded. The following summary statistics are based on a graph that appeared in the paper.n = 47 x = 525s = 75(a) Construct a 95% confidence interval for μ, the mean time to react to a red light while talking on a cell phone. (Round your answers to three decimal places.)(b) Suppose that the researchers wanted to estimate the mean reaction time to within 7 msec with 95% confidence. Using the sample standard deviation from the study described as a preliminary estimate of the standard deviation of reaction times, compute the required sample size. (Round your answer up to the nearest whole number.)
General
10 months ago
When 2/3 of the garments in the shipment were inspected, 18 of the garments passed inspection and the remaining 2 garments failed. How many of the uninspected garments must pass inspection in order that 90 percent of the garments in the shipment pass?A. 10B. 9C. 8D. 7E. 5
General
10 months ago
Find the midpoint of the line segment joining the points (10,7) and (negative 2,negative 7).
General
10 months ago
Given the system of equations presented here:2x + 4y = 144x + y = 20Which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? (5 points) aMultiply the second equation by −4 to get −16x − 4y = −80 bMultiply the second equation by −1 to get −4x − y = −20 cMultiply the first equation by 2 to get 4x + 8y = 28 dMultiply the first equation by −1 to get −2x − 4y = −14
General
10 months ago
Identify the inequality that represents the following problem "Two more than three times a number is at least eight" What is the solution set?a. 2 ≥ 8+3nb. 3n+2 > 8c. 3n+2 ≥ 8d. 2 > 8+3nWill give brainlyest
General
10 months ago
a) Γ(n) =∫[infinity]0tn−1e−tdta)Show that Γ(n+ 1) =nΓ(n) using integration by parts.b) Show that Γ(n+ 1) =n! , wherenis a positive integer, by repeatedly applying the result in parta)c) Compute Γ(5).d) Prove what the value of Γ(12) should be by evaluating the gamma function forn= 1/2 and usingthe fact that∫[infinity]0e−u2du=√π2.
General
10 months ago
The null hypothesis for an ANOVA is that all treatments/samples come from populations with the same mean. The alternative hypothesis is best stated as: "" of the population means is different from the others.
General
10 months ago
Researchers are planning a study to estimate the impact on crop yield when no-till is used in combination with residue retention and crop rotation. Based on data from a meta-analysis of 610 small farms, the researchers estimate there is a 2.5% decline in crop yield when no-til is used with residue retention and crop rotation. Suppose the researchers want to produce a 90% confidence interval with a margin of error of no more than 7.0%. Determine the minimum sample size required for this study. The sample size needed to create a confidence interval estimate depends on the margin of error, the initial estimated proportion, and the confidence level. Be sure to use proportions rather than percentages. Round your final answer up to the nearest whole number. n=_____________________held comparisons
General
10 months ago
A manufacturing process produces bags of chips whose weight is N(16 oz, 1.5 oz). On a given day, the quality control officer takes a sample of 36 bags and computed the mean weight of these bags. The probability that the sample mean weight is below 16 oz isGroup of answer choices:A. 0.55B. 0.45C. 0.50D. 0.60
General
10 months ago
How much would $600 be worth after 10 years, if it were invested at 4%interest compounded continuously? (Use the formula below and round youranswer to the nearest cent.)Aft) = Poet
General
10 months ago
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