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To construct a square, Mikayla uses her straightedge to draw AB¯¯¯¯¯ . She will use the method of constructing a square which will make AB¯¯¯¯¯ a diagonal of the square.What should Mikayla do next?Open the compass to the length of AB¯¯¯¯¯ and draw a circle centered at point A. Change to compass opening to half the length of AB¯¯¯¯¯ and draw a circle centered at point B.Open the compass to the length of AB¯¯¯¯¯ and draw a circle centered at point A. Without changing the compass opening, draw a circle centered at point B.Put the compass point on A and the pencil point on the segment, closer to point B than to point A, and draw a circle centered at point A. Without changing the compass opening, draw a circle centered at point B.Put the compass point on A and the pencil point on the segment, closer to point A than to point B, and draw a circle centered at point A. Without changing the compass opening, draw a circle centered at point B.
General
4 months ago
A road perpendicular to a highway leads to a farmhouse located d miles away. An automobile traveling on this highway passes through this intersection and continues at a constant speed of r mph. Compute how fast the distance betwen the automobile and the farmhouse is increasing when the automobile is 30 miles past the intersection of the highway and the road, in terms of d, and r.
General
4 months ago
Let X denote the distance (m) that an animal moves from its birth site to the first territorial vacancy it encounters. Suppose that for banner-tailed kangaroo rats, X has an exponential distribution with parameter λ = .01386 (as suggested in the article "Competition and Dispersal from Multiple Nests, " Ecology, 1997: 873-883). What is the probability that the distance is at most 100 m? At most 200 m?
General
4 months ago
The data for Shawn's phone has 32000 megabytes if storage for photos . She wants to increase the amount by 4% if each photo uses 5 megabytes will she have enough new memory for 200 additional photos?
General
4 months ago
Your realized income is $2,943.20 /month. How much are your fixed expenses each month? How much could you save per month if you take 25% of your discretionary monies and put it in a savings account?
General
4 months ago
1/4k = 3 (-1/4k + 3)
General
4 months ago
What is the relationship between the lines determined by the following two equations? 15x−3y=−12 y = 5x + 7 answers A parallel , B They are the same line, C perpendicular, D neither parallel nor perpendicular
General
4 months ago
What transformation(s) have been applied to function f(x) to get g(x)? Check all that apply.translationreflectiondilationrotation
General
4 months ago
Please hury What is the range of the relation? {(1, 2), (2, 4), (3, 2), (4, 4)}A{2, 4, 6}B{2, 4}C{1, 2, 3, 4}D{1, 2, 3, 4, 6}
General
4 months ago
Two planes travel at a constant speed. Plane A travels 2,800 miles in 5 hours. Plane B travels 3,885 miles in 7 hours. Which plane is faster? Explain your reasoning
General
4 months ago
The sum of the reciprocals of two consecutive odd integers is 24/143. find the two integers.
General
4 months ago
A pair of dice are tossed. what is the probability that doubles are rolled, given that the sum on the two dice is less than 8?
General
4 months ago
ashton left his house and ran 4 miles east and then 3 miles north. he then took the diagonall path back home. if the burned 105 calories every mile thet he ran, how many total calories did he burn on his run
General
4 months ago
which shows the equation in standard form? 7 - 3 ( x -y) = 5x + 2A. 3x - 8y = 5B. 8x + 3y = 5C. 8x - 3y = 5D. 8x - 3y = -5
General
4 months ago
A polynomial function has a zero at 4 (multiplicity 3) and 0 (multiplicity 1). write a function in standard form
General
4 months ago
What is the converse of the statement?If two angles are right angles, then the angles are congruent.If two angles are obtuse, then the angles are not right angles.If two angles are congruent, then the angles are right angles.If two angles are not congruent, then the angles are not right angles.If two angles are acute, then the angles are not right angles.
General
4 months ago
What is the standard deviation of company r's earnings per month for this year? (1) the standard deviation of company r's earnings per month in the first half of this year was $2.3 million. (2) the standard deviation of company r's earnings per month in the second half of this year was $3.9 million. 2. what is the standard deviation of q, a set of consecutive integers? (1) q has 21 members. (2) the median value of set q is 20. 3. lifetime of all the batteries produced by certain companies have a distribution which is symmetric about mean m. if the distribution has a standard deviation of d , what percentage of distribution is greater than m+d? (1) 68 % of the distribution in the interval from m-d to m+d, inclusive (2) 16% of the distribution is less than m-d 4. question deleted 5. list s and list t each contain 5 positive integers, and for each list the average of the integers in the list is 40. if the integers 30,40 and 50 are in both lists , is the standard deviation of the integers in list s greater than the standard deviation of the integers in list t? (1)the integer 25 is in list s (2)the integer 45 is in list t 6. set t consists of odd integers divisible by 5. is standard deviation of t positive? (1) all members of t are positive (2) t consists of only one member 7. set x consists of 8 integers. is the standard deviation of set x equal to zero? (1) the range of set x is equal to 3 (2) the mean of set x is equal to 5 8. {x,y,z} if the first term in the data set above is 3, what is the third term? (1) the range of this data set is 0. (2) the standard deviation of this data set is 0. 9. question deleted 10. a scientist recorded the number of eggs in each of 10 birds' nests. what was the standard deviation of the numbers of eggs in the 10 nests? (1) the average (arithmetic mean) number of eggs for the 10 nests was 4. (2) each of the 10 nests contained the same number of eggs. 11. during an experiment, some water was removed from each of the 6 water tanks. if the standard deviation of the volumes of water in the tanks at the beginning of the experiment was 10 gallons, what was the standard deviation of the volumes of water in the tanks at the end of the experiment? (1) for each tank, 30% of the volume of water that was in the tank at the beginning of the experiment was removed during the experiment. (2) the average (arithmetic mean) volume of water in the tanks at the end of the experiment was 63 gallons. calculating standard deviation of a set {x1, x2, ... xn}: 1. find the mean, m, of the values. 2. for each value xi calculate its deviation (xi-m) from the mean. 3. calculate the squares of these deviations. 4. find the mean of the squared deviations. this quantity is the variance. 5. take the square root of the variance. the quantity is th sd. tips: 1. |median-mean| <= sd?
General
4 months ago
What is the missing width of the speaker below when its volume is 30,000 cm3 ?
General
4 months ago
Select two like fractions with a difference of 1/3 and with denominators that are not 3. Justify your selection.
General
4 months ago
2. A chemist wants to make 4 liters of a 7% acid solution by mixing a 10% acid solution and a 4% acid solution. How many liters of each solution should the chemist use? Write your answer as a complete sentence Be sure to: (a) Define your variable and expressions for the quantities. (b) Write an equation that models the problem. (c) Solve the equation. (d) State the answer in a complete sentence Please help and explain
General
4 months ago
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