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MATH SOLVE
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25 (a square) - 4 (b square) + 28bc - 49 (c square)
General
4 months ago
Housing costs are what percentage of monthly net income? Use the budget sheet to calculate. Round your answer to the nearest whole percent. % Budget sheet for monthly net income of 1875 dollars - first column Expense, second column Cost in dollars, third column Percent of monthly net income unknown (question mark). First row Expense housing, Cost 430. Second row food, Cost 300. Third row Expense utilities, Cost 125. Fourth row Expense transportation, Cost 320. Fifth row Expense savings, Cost 500. Sixth row Expense other, Cost 200. Final row Total expenses, Cost 1875.
General
4 months ago
The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the graph. [-5, 5] by [-5, 5]. a. r= 2-2 sinθ b. r= 3-2 sinθc. r= 2+2 sinθd. r= 1-3 sinθ
General
4 months ago
For which expression is the sum of the constants greater than the sum of the coefficients? 7+3x^2+7x+37+4x^2+4x+18+4x^2+8x+28+3x^2+7x+4
General
4 months ago
On a coordinate grid, the coordinates of vertices P and Q for Polygon PQRS are P(1, 2) and Q(−1, 2). What is the length of Side PQ of the polygon? 2 units 3 units 4 units 6 units
General
4 months ago
Dylan, Alan, Bruce, and Cecil are brothers. Dylan weighs d pounds. Alan weighs 3 pounds more than twice what Dylan weighs. Bruce weighs 12 pounds less than three times what Dylan weighs. If Cecil weighs the same as the combined weight of Bruce and Alan, what is Cecil’s weight in terms of Dylan’s weight (d)?Complete the steps below to solve this problem and others like it.Part AAlan weighs 3 pounds more than twice what Dylan weighs. Write an expression to represent Alan’s weight in terms of Dylan’s weight.
General
4 months ago
which point lies on the circle
General
4 months ago
ΔABC is dilated by a scale factor of 3 with the origin as the center of dilation to form ΔA′B′C′. The slope of AB is -1.2. The length of AB is p units, the length of AC is q units, and the length of BC is r units.The slope of AB is (?). The length of is (?) units.the slope of AB is?A. 1.2B. -1.2C. -3.6The length of AC is ?A. 1/3qB. 3qC.-1.2pD. (p+q+r)
General
4 months ago
F(x) = x2 − x − ln(x) (a) find the interval on which f is increasing. (enter your answer using interval notation.) find the interval on which f is decreasing. (enter your answer using interval notation.) (b) find the local minimum and maximum value of f. local minimum value local maximum value (c) find the inflection point. (x, y) = find the interval on which f is concave up. (enter your answer using interval notation.) find the interval on which f is concave down. (enter your answer using interval notation.)
General
4 months ago
Suzy was adding numbers on a number line. She started at 26 and then she added 36. She wrote that her answer was 52. Is Suzy's answer reasonable? A. Yes, it is reasonable because if you add two numbers, you will get a number that is greater than either of the two numbers. B. No, it is not reasonable because if you round the numbers 25 + 35 = 60, so the answer should be a bit greater than 60. C. Yes, it is reasonable because 20 + 30 = 50, so the answer should be greater than 50.
General
4 months ago
Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that there is a 75% chance of a customer making a purchase. The random variable x represents a customer making a purchase. Calculate the mean, variance and standard deviation for the number of customers that make a purchase.
General
4 months ago
Rewrite the definition “Linear angles are supplementary” in biconditional form The angles are linear angles if and only if they are supplementary. If the angles are linear angles only if they are supplementary. If the angles are linear angles, then they are supplementary. If and only if the angles are linear angles, if and only if they are supplementary.
General
4 months ago
Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college. You survey 10 of your friends and find that the average weight gain the first year was 16.2 lbs (s.d. = 2.6). How does weight gain among your friends compare to the national average? Please round to three decimal places. Compute the test statistic.
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4 months ago
3HELP__________________
General
4 months ago
7HELP________________
General
4 months ago
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) x overbarequals17.598 Sxequals16.01712719 nequals50 a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly. 13.05 Mbpsless thanmuless than 22.15 Mbps (Round to two decimal places as needed.) b. Identify the best point estimate of mu and the margin of error.
General
4 months ago
A group of friends go to the movies. The function h(x) represents the amount of money spent, where x is the number of friends at the movies. Does a possible solution of (6.5, $95.25) make sense for this function? Explain your answer. Yes. The input and output are both possible. No. The input is not possible. No. The output is not possible. No. Neither the input nor output is possible.
General
4 months ago
Prove that if V and W are both subspaces of the vector space U, then their intersection is also a subspace of U. Please write a formal proof and write legibly! Show all steps. Linear Algebra. Thanks.
General
4 months ago
I need some major help with this proof.
General
4 months ago
The following function represents the value of a motorcycle, in dollars, after x years: f(x) = 19,000(0.91)x What does 0.91 represent? A.The present value of the motorcycle B.The value of the motorcycle after x years C.The decrease in the value of the motorcycle, which is 9% D.The decrease in the value of the motorcycle, which is 91%
General
4 months ago
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