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what is the gcf of 18a and 20ab
General
2 months ago
The E. coli bacteria has a volume of 6 µm3 . In optimal conditions, an E. coli bacteria will double about every 30 minutes. Under these conditions, how long will it take for a single bacterium to grow to fill a thimble with volume 1 cm3 ? How long will it take for the volume to fill the entire earth 1.08 × 108 km3 ?
General
2 months ago
Exposure to endotoxins may have an impact on how sensitive someone is to allergies. To study endotoxins, researchers measured concentrations of dust (EU/mg) in urban (U) and farm (F) homes and record the following measurements: U: 6.0 5.0 11.0 33.0 4.0 5.0 120.0 18.0 35.0 13.0 23.0 F: 4.0 14.0 11.0 9.0 9.0 8.0 4.0 20.0 5.0 8.9 21.0 9.2 3.0 2.0 a) Calculate the sample mean for U and F. What is the difference between the means x¯U - x¯F ? Please report your answer to 3 decimal places. (For example 3.1119 - 2.0091 = 1.1028 is rounded to 1.103.)
General
2 months ago
Simplify these expression. a.4c+9+3. b. 10x+(-4)+(-10) c.-9+3x+14. d.11y+6+(-7)
General
2 months ago
Jen and Kamlee are walking to school. After 20 minutes, Jen has walked 4/5 mile. After 25 minutes, Kamlee has walked 5/6 mile. Find their speeds in miles per hour. Who is walking faster?
General
2 months ago
Mrs. Menary made 4 quarts of lemonadefor a school party. How many fluid ounces of lemonade did she make?
General
2 months ago
how to make a decimal a mixed number
General
2 months ago
The angle measures are represented by algebraic expressions.Determine the values of x. y. and z.
General
2 months ago
Nagaraj has a party-length sandwich that is 55 inches long and is to be cut into three pieces. The middle piece will be 4 inches longer than the shortest piece, and the shortest piece will be 9 inches shorter than the longest piece. How long will the pieces be?
General
2 months ago
18+ (-30)Integers help plssss
General
2 months ago
Which of the following statements about unit rates is NOT true?A) a unit rate relates a quantity to 1B) unit rates can be used to compare two ratesC) any rate is equivalent to its unit rateD) a unit rate always relates quantities with the same units
General
2 months ago
A restaurant needs to plan seating for a party of 150 people. Large tables seat 10 people and small tables seat 6. Let x represent the number of large tables and y represent the number of small tables. The expression 10A + 6B, which represents the total number of people you can seat using A large tables and B small tables, is called a linear combination. For instance, 150 people could be seated using 12 large tables and 5 small tables. Use that expression to enter an equation in standard form that models all the different combinations of tables the restaurant could use. Then identify at least one possible combination of tables other than (12, 5).
General
2 months ago
Find the AGI and taxable income:A) $23670 and $8200B) $31870 and $23,670 C) $23670 and $15,470 D) $15,470 and $8200
General
2 months ago
Winnie adds the smallest 30 positive even numbers. Grogg adds the largest 30 odd negative numbers. How much greater is Winnie's sum than Grogg's sum?
General
2 months ago
How many 2X4 foot tiles are needed for 48 square feet?
General
2 months ago
A small gym in Biloxi, Mississippi, averages about 50 customers on weekdays with a standard deviation of 10. It is safe to assume that the underlying distribution is normal. In an attempt to increase the number of weekday customers, the manager offers a $10 membership discount on 5 consecutive weekdays. She reports that her strategy has worked since the sample mean of customers during this weekday period jumps to 75. a. How unusual would it be to get a sample average of 75 or more customers if the manager had not offered the discount? b. Do you feel confident that the manager's discount strategy has worked? Explain.
General
2 months ago
Biologists studying the healing of skin wounds measured the rate at which new cells closed a cut made in the skin of an anesthetized newt. Here are data from a random sample of 18 newts, measured in micrometers (millionths of a meter) per hour: 29, 27, 34, 40, 22, 28, 14, 35, 26, 35, 12, 30, 23, 18, 11, 22, 23, 33. Create a QQ plot of the data. Do you think it is reasonable to assume that the population distribution is normal?
General
2 months ago
9.18 Technology and the Internet Many limousines now offer the latest in high-tech gadgets. DVD players, satellite radio, and wireless Internet connections are some of the high-priced accessories. Suppose Boston Coach will install wireless Internet in all of its vehicles if more than 75% of all clients desire this service. A random sample of clients will be selected, and the resulting information will be used to test the relevant hypothesis. Let p represent the proportion of all clients who would like wireless Internet in a limousine. State the null and alternative hypotheses in terms of p
General
2 months ago
Find the area of the composite figure. Round your answer to the nearest tenth.
General
2 months ago
the energy cost of a bird flight as a function of body weightis given by: E=429w^-0.35 where w is the weight of the bird in g and E is the energyexpenditure in cal/g/hr. Suppose that the weight of a bird weighing10 g is increasing at a rate of 0.001 g/hr. Find the rate at whichthe energy expenditure is changing with respect to time.
General
2 months ago
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