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The points (–4, –3) and (–1, –8) are on a line. Find the intercepts to the nearest tenth.
General
6 months ago
The half life of a certain substance is about 4 hours. The graph shows the decay of a 50 gram sample of the substance that is measured every hour for 9 hours.A graph shows time (hours) labeled 1 to 10 on the horizontal axis and quantity (grams) on the vertical axis. A line decreases from 0 to 9.Which function can be used to determine the approximate number of grams of the sample remaining after t hours?y = 25(0.15)ty = 25(0.85)ty = 50(0.15)ty = 50(0.85)t
General
6 months ago
The manager of a bulk foods establishment sells peanuts tor $6 per pound and premium cashews tore $12 per pound. The manager wishes to make a 105 pound nut mixture that will sell foe $10 per pound. Howe many pounds of peanuts should be used? A) 30 ponds of peanuts. B) 70 pound,of peanuts. C) 35 pounds of peanuts. D) 60 pounds of peanuts. E) None of these
General
6 months ago
Use implicit differentiation to find an equation of the tangent line to the curve at the given point.x^2 + y^2 = (3x^2 + 4y^2 ? x)^2(0, 0.25)(cardioid)y=?
General
6 months ago
Paint manufacturer uses a machine to fill 1- gallon cans with paint- they want to estimate the mean volume of paint the machine is putting in the cans within 0.25 of an ounce. Determine the minimum sample size needed to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.85 ounces.
General
6 months ago
What is different about the normality requirement for a confidence interval estimate of sigma and the normality requirement for a confidence interval estimate of mu?The normality requirement for a confidence interval estimate of sigma is ( less strict/ stricter) than the normality requirement for a confidence interval estimate of mu. Departures from normality have a (greater/ lesser) effect on confidence interval estimates of sigma than on confidence interval estimates of mu. That? is, a confidence interval estimate of sigma is (more/less)robust against a departure from normality than a confidence interval estimate of mu.
General
6 months ago
Find the maximum and minimum values of the given quadratic form subject to the constraint x2 + y2 + z2 = 1 and determine the values of x, y, and z at which the maximum and minimum occur. 5. 9x2 + 4y2 + 3z2
General
6 months ago
J&J Manufacturing issued a bond with a $1,000 par value. The bond has a coupon rate of 7% and makes payments semiannually. If the bond has 20 years remaining and the annual market interest rate is 9.4%, what will the bond sell for today?a. $761b. $787c. $746d. $785e. $796
General
6 months ago
Suppose that a new scoring system for universities was created which has a scale of 0-100. The scores on this system are normally distributed with a variance of 100 and a mean of 65. What score would need to have in order to be in the top 10% of universities?
General
6 months ago
A rain gutter is to be constructed from a metal sheet of width 30 cm by bending up one-third of the sheet on each side through an angle θ. How should θ be chosen so that the gutter will carry the maximum amount of water? θ = radians
General
6 months ago
A contestant on a game show is given $100 and is asked five questions. The contestant loses $20 for every wrong answer. Is the graph discrete or continuous? Determine the domain and range.
General
6 months ago
3. You are looking into two long distance telephone plans offered by GT&T. The “One Rate 5 cents” plan has a monthly fee of $7.95 and all calls are 5 cents per minute. The “One Rate 7 cents” plan has a monthly fee of $4.95 and all calls are 7 cents per minute. Under what circumstances is one plan less expensive than the other? a. The "One Rate 5 cents" plan is less expensive for calls lasting less than 1.5 minutes. The "One Rate 7 cents" plan is less expensive for calls lasting more than 1.5 minutes.b. The "One Rate 7 cents" plan is less expensive for calls lasting less than 1.5 minutes. The "One Rate 5 cents" plan is less expensive for calls lasting more than 1.5 minutes.c. The "One Rate 5 cents" plan is less expensive for calls lasting less than 150 minutes. The "One Rate 7 cents" plan is less expensive for calls lasting more than 150 minutes.d. The "One Rate 7 cents" plan is less expensive for calls lasting less than 150 minutes. The "One Rate 5 cents" plan is less expensive for calls lasting more than 150 minutes.
General
6 months ago
The vertices triangle ABC are A(0,3) , B(2,-4) and C (-4,-6 . Triangle ABC is rotated 180 degrees counter close wise about the origin to form A'B'C'. What are the coordinates of the vertices of A'B'C' ?
General
6 months ago
a[1] Angle Addition Postulate[2] Subtraction Property of Equality b[1] Substitution Property of Equality [2] Transitive Property of Equality c[1] Segment Addition Postulate [2] Definition of Congruent Segments d[1] Segment Addition Postulate[2] Substitution Property of Equality
General
6 months ago
Based on the box-and-whisker plot shown below, match each term with the correct value.(1)Median a0(2)Range a1(3)25th percentile a2(4)75th percentile a3(5)Inter-quartile Range a4
General
6 months ago
The length of a table is 6 feet. On a scale drawing, the length is 2 inches. Write three possible scales for the drawing
General
6 months ago
Please help! Quick!Problem:On a trip to the lake, Kerrie and Shelly rode their bicycles four more than three times as many miles in the afternoon as they rode in the morning. If the entire trip is 112 miles, how far did they ride in the morning and how far in the afternoon?Please SHOW ALL OF YOUR WORK!
General
6 months ago
The number of miles driven varies directly with the number of hours in the car. Billy drives 171 miles in 3 hours, so he could drive _____ miles in 4.5 hours.
General
6 months ago
Cora sliced 18 kg of green apples for a Party. she divided the Apple slices equally bettween 5 large bowls. How many grams of Apple slices did Cora put in each bowl. kilogram = 1000 grams
General
6 months ago
Mandy used the input and output in this table to write ratios. She concluded that because they are not all equivalent, this is not a proportional relationship. Is she correct? Explain.[ x ][ 1 ][ 2 ][ 5 ][ 10 ]-------------------------------[ y ][ 5 ][ 10 ][ 25 ][ 50 ]5/1 = 10/2 = 25/5 = 10/50
General
6 months ago
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