Tutors Answer Your Questions about Linear-equations (FREE)
Question 1065695: The number of fatalities due to car crashes, based on the number of miles driven, begins to climb after the driver is past age 65. Aside from declining ability as one ages, the older driver is more fragile. The number of fatalities per 100 million vehicle miles driven is approximately
N(x) = 0.0336x^3 − 0.118x^2 + 0.215x + 0.7 (0 ≤ x ≤ 7)
where x denotes the age group of drivers, with x = 0 corresponding to those aged 50-54, x = 1 corresponding to those aged 55-59, x = 2 corresponding to those aged 60-64, . . . , and x = 7 corresponding to those aged 85-89. What is the fatality rate per 100 million vehicle miles driven for an average driver in the 50-54 age group? In the 85-89 age group?†
50-54 ??? fatalities/100 million mile
85-89 ??? fatalities/100 million mile
Click here to see answer by Boreal(15235)  |
Question 1065917: Trying to figure out the equation for the following word problem:
A carpenter is building a shelving system and cuts a 14-foot long of cherry, shelving into three pieces. The second piece is twice as long as the first, and the third piece is 2 feet longer than the first. Find the length of each piece of cherry shelving.
Help is greatly appreciated.
Click here to see answer by KMST(5328)  |
Question 1065918: A guy wire (a tensioned cable designed to add stability to a free-standing structure) is attached to a telephone pole whose height is 18 ft. If the wire is attached to the ground at a point 24 ft away from the base of the pole, what is the slope of the wire?
Click here to see answer by KMST(5328)  |
Question 1065883: Consider the supply equation where x is the quantity supplied in units of a thousand and p is the unit price in dollars.
p = 2x^2 + 6
(a) Sketch the supply curve.
(b)Determine the price at which the supplier will make 3000 units of the commodity available in the market
$????
Click here to see answer by stanbon(75887) |
Question 1065882: Consider the supply equation where x is the quantity supplied in units of a thousand and p is the unit price in dollars.
p = 2x^2 + 6
(a) Sketch the supply curve.
(b)Determine the price at which the supplier will make 3000 units of the commodity available in the market
$????
Click here to see answer by stanbon(75887) |
Question 1065881: Consider the demand equation where x represents the quantity demanded in units of a thousand and p is the unit price in dollars.
p = −x^2 + 16
Determine the quantity demanded when the unit price is set at p = $7
Click here to see answer by Boreal(15235)  |
Question 1065880: In the pair of supply and demand equations below, x represents the quantity demanded in units of a thousand and p the unit price in dollars, find the equilibrium quantity and the equilibrium price.
p = 108 − 4x^2 and p = x^2 + 10x + 33
equilibrium quantity ??? Thousand units
equilibrium price ??? Dollars
Click here to see answer by stanbon(75887) |
Question 1065879: The number of fatalities due to car crashes, based on the number of miles driven, begins to climb after the driver is past age 65. Aside from declining ability as one ages, the older driver is more fragile. The number of fatalities per 100 million vehicle miles driven is approximately
N(x) = 0.0336x^3 − 0.118x^2 + 0.215x + 0.7 (0 ≤ x ≤ 7)
where x denotes the age group of drivers, with x = 0 corresponding to those aged 50-54, x = 1 corresponding to those aged 55-59, x = 2 corresponding to those aged 60-64, . . . , and x = 7 corresponding to those aged 85-89. What is the fatality rate per 100 million vehicle miles driven for an average driver in the 50-54 age group? In the 85-89 age group?†
50-54 ??? fatalities/100 million mile
Click here to see answer by stanbon(75887) |
Question 1066174: Can you please help me with this question?
The equation y=0.5x represents the distance Joseph j\hikes in miles, over time, in hours. The graph represents the rate that Kelly hikes. Determine which hiker is faster.
Click here to see answer by Alan3354(69443)  |
Question 1066315: The sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that is 21 cm and a second side that is 3 cm less than twice the third side, what are the possible lengths for the second and third sides?
Click here to see answer by stanbon(75887) |
Question 1066315: The sum of the lengths of any two sides of a triangle must be greater than the third side. If a triangle has one side that is 21 cm and a second side that is 3 cm less than twice the third side, what are the possible lengths for the second and third sides?
Click here to see answer by MathTherapy(10552)  |
Question 1066351: A taco contained approximately 1 kg of onion for every 6.6 kg of grilled steak. The total weight of the two ingredients was 617.6 kg. To the nearest tenth of a kilogram, how many kilograms of onions and how many kilograms of grilled beef were used to make the taco?
Click here to see answer by josmiceli(19441)  |
Question 1066527: -2=-11/3(4) + b solve for b
My answer I get is b= -46/3, but when I entered the problem in WolframAlpha, they got b=38/3. I just want to know where I went wrong.
Here's mine:
y=-11/3x+b
-2=-11/3(4)+b
-2=-44/3+b
-b -b
-2-b=-44/3
+-2 +-2
b=-44/3+-2
b=-46/3
Can you show me where I went wrong?
Click here to see answer by ikleyn(52781)  |
Question 1066527: -2=-11/3(4) + b solve for b
My answer I get is b= -46/3, but when I entered the problem in WolframAlpha, they got b=38/3. I just want to know where I went wrong.
Here's mine:
y=-11/3x+b
-2=-11/3(4)+b
-2=-44/3+b
-b -b
-2-b=-44/3
+-2 +-2
b=-44/3+-2
b=-46/3
Can you show me where I went wrong?
Click here to see answer by MathTherapy(10552)  |
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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 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30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 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