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You have 5 beads. How many different ways can you arrange a subgroup of 2 of them?
General
7 months ago
what is 2+2
General
7 months ago
Would you use mean, median or modal to compare interest rates for 90 day CD in different cities and why?
General
7 months ago
Solve 14/24 + 12/18
General
7 months ago
Write and solve an equation to answer the question. A truck rental is$25 plus $.35 a mile. Find out how many miles Ken traveled if his bill was $55.80?
General
7 months ago
An unknown distribution has a mean of 44 and a standard deviation of 7.4. A sample size of 68 is drawn randomly from the population. Find the sum that is 0.96 standard deviations above the mean of the sums. State your answer to two decimal places.
General
7 months ago
An angler hooks a trout and reels in his line at 5 in./s. Assume the tip of the fishing rod is 11 ft above the water and directly above the angler, and the fish is pulled horizontally directly toward the angler (see figure). Find the horizontal speed of the fish when it is 20 ft from the angler.
General
7 months ago
The product two numbers is 36. The sum of the numbers is 13. What are the two numbers.
General
7 months ago
2 fewer than the quotient of 6 and 3
General
7 months ago
Suppose that you are designing an instrument panel for a large industrial machine. The initial design of the machine requires the person using it to be able to reach 700 mm from a particular position. The reach for adult women from this position is known to have a mean of 800 mm with a standard deviation of 100 mm. The reach for adult men is known to have a mean of 900 mm with a standard deviation of 100 mm. Both women’s and men’s reach from this position is normally distributed. c) If you were to redesign this equipment, how close would you have to make the parts to be reached in order to ensure that only 2% of women would be unable to use it?
General
7 months ago
1. An average of the most recent surveys of the American public’s party identification indicates that 45% of eligible voters identify themselves as Democrats, 45% of eligible voters identify themselves as Republicans, 8% of eligible voters identify themselves as Independents, and 2% of eligible voters identify themselves as members of a third party. The latest census indicates that 19% of the public lives in the Northeast, 23% of the public lives in the Midwest, 36% of the public lives in the South, and 22% of the public lives in the West. Assume that the distribution of partisans is uniform in all parts of the country. If you randomly select respondents to participate in a survey, what is the probability that (20 points): a. The first person you contact will be a Republican? b. The first person you contact will be either a Democrat or an Independent? c. The first two people you contact will be an Independent and a member of a third party (in that order)? d. The first person you contact will be a Democrat, given that you choose a member of one of the two major parties? e. The first person you contact will be a Republican living in the South? f. The first two people you contact will be a Democrat from the West and a Northeasterner (in no particular order)? g. The first person you contact will be a member of a third party, given that you do not select someone from the Midwest?
General
7 months ago
Determine the type of conic to which the equation belongs: 12y^2-72y+x+78=0
General
7 months ago
what is the domain of f(x)=2x-1
General
7 months ago
Now that you have a field with fencing around it, let’s grow some crops on it to make some money. In the last section we used quadratics functions to maximize the area. Similarly, in this section we will be using quadratic functions to maximize revenue. Let’s say we have access to planting 2 different crops, Watermelons and Grapes. We can find the revenue of a crop by the equation: R = (p0 + px)(n0 - nx) Where R is the revenue, p0 is the starting price, n0 is the amount sold at the starting price, p is the price increase, n is the decrease in the amount sold per price increase, and x is the number of price increases. Crop A: Watermelons have a starting price of $12.00 per m2 of area sold. At this price, you are able to sell 45 m2 worth. For every $2.00 increase, you will sell 1 m2 less. So the first task is to figure out how to put these values into the equation above, and turn it into a quadratic function. Then you will need to find the value of x in order to make the revenue as large as possible. Once you know x, the number of price increases, you can then find what you should price your Watermelons per m2. Equation: Number of price increases: x = R= Number of price increases: x = Price of watermelons per m^2 =
General
7 months ago
Sam has a rectangular garden. The garden is as twice as long as it is wide. if the perimeter of the garden is 60yd what is the length and width
General
7 months ago
solve for x. y=xvz
General
7 months ago
Give the equation slope 9 and a y -intercept of -4
General
7 months ago
Find the vertex of the parabola. g(x)=−x2−8x−7
General
7 months ago
There are two numbers which add up to 29. If one is 1 more than the other, find the two numbers
General
7 months ago
Enter a primitive function to F(x)=x^2+3x
General
7 months ago
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