Tutors Answer Your Questions about test (FREE)
Question 1046815: Are any of these relations a function?
A.) (0,1) (1,1) (2,1) (3,1)
B.) (0,1) (1,3) (2,3) (2,7)
C.) (3,7) (9,7) (4,8) (3,2)
D.) (1.7,1.7) (3.1,3.1) (1.7, -1.7) (3.1, -3.1)
Click here to see answer by ewatrrr(24785)  |
Question 1046846: Can you help me find the domain of this function?
function: https://s11.postimg.org/yczx0tek3/domain.png
Either
A.) All real numbers
B.) All reals x not equal to 4
C.) All reals x not equal to 2
D.) All reals x not equal to -2
Click here to see answer by MathLover1(20849)  |
Question 1046958: A graduate teaching assistant for an Introduction to Statistics course collected data from one of her classes to investigate the relationship between using the explanatory variable xequals=study time per week (average number of hours) to predict the response variable yequals=college GPA. For the 21 females in her class, the correlation was 0.42. For the eight males in her class, the data were as shown in the following table. Complete parts a through c below.
Student
1
2
3
4
5
6
7
8
Study Time
1414
1111
2424
1111
1313
2121
55
44
GPA
3.43.4
3.13.1
3.63.6
3.33.3
2.82.8
3.93.9
2.92.9
2.62.6
a. Construct a scatterplot. Interpret.
Which scatterplot below correctly shows the data?
A.
0
40
0
4
x
y
x y graph
B.
0
40
0
4
x
y
x y graph
Your answer is correct.C.
0
40
0
4
x
y
x y graph
D.
0
40
0
4
x
y
x y graph
The scatterplot shows
a strong positive
association between the two variables.
b. Find and interpret the correlation.
The correlation is?
(Round to two decimal places as needed.)
Click here to see answer by ewatrrr(24785)  |
Question 1047025: I don't really understand this.. can anyone help me with it?
Match the terms with the definitions.
1. y = 1.7 (1.06)x
2. y = 1.7 (0.93)x
3. y = 250 (1.08)x
4. y = 250 (0.925)x
a. rate of growth 6%
b. rate of decay 7%
c. Rate of growth 8%
d. Rate of decay 7.5%
Click here to see answer by MathLover1(20849)  |
Question 1047025: I don't really understand this.. can anyone help me with it?
Match the terms with the definitions.
1. y = 1.7 (1.06)x
2. y = 1.7 (0.93)x
3. y = 250 (1.08)x
4. y = 250 (0.925)x
a. rate of growth 6%
b. rate of decay 7%
c. Rate of growth 8%
d. Rate of decay 7.5%
Click here to see answer by fractalier(6550)  |
Question 1047243: show that (5+4√x)squared /2x = 25/2 x^-1 +Px^ -1/2 + Q
i can simplify the brackets into (25+ 40√x+16x)/2x but in the mark scheme they get the same brackets but instead of dividing by 2x they write 1/2 x to the power of -1(25+40rootx+16x) why do they times the brackets by a half x to the power of -1
Click here to see answer by solver91311(24713)  |
Question 1047333: On a model race track, two model cars leave the starting line at the same time and travel around tracks of equal lengths. One completes a circuit in 15 seconds, the other in 18 seconds.
How long will it be before they are together again at the starting line?
Click here to see answer by josmiceli(19441)  |
Question 1047165: A container is being filled with water. After t seconds the depth of water, x cm, in the container is increasing at the rate of 1.44tcm/s.
Given that the container is empty when t=0, use calculus to find
the approx increase in x as t increases from 4 to 4.1.
Click here to see answer by Alan3354(69443)  |
Question 1048178: Water allocations and water flows in drought years. Here I provide for you the total inflow and outflows of surface water to and from SC. Assume the SC water system is and has been at steady state (ΔS = 0). The total flows in SC are presented as follows (all quantities in millions of acrefeet (MAF) per year). One acre foot is the volume corresponding to an area 660 ft x 66 ft x 1 ft where 660 ft x 66 ft is one acre, 1 AF = 325,851 gallons):
Table 1. Where South Carolina’s surface water comes from Precipitation 103.0 MAF/yr Net imports from out of state 1.7 MAF/yr Groundwater Pumping 2.0 MAF/yr Total: 106.7 MAF/yr
Where South Carolina’s surface water goes
evaporation and transpiration 61.0 MAF/yr
agriculture 3.0 MAF/yr Flows for wild & scenic rivers, and for estuary salinity standards 11.5 MAF/yr Other river flow to the ocean 27.2 MAF/yr Urban/industrial use 4 MAF/yr Total: 106.7 MAF/yr
9) There have been proposals to accommodate South Carolina’s growing population with water that is now used for agriculture. If half of the water (1.5 MAF) now going to agriculture went to urban and industrial uses instead, how many new urban dwellers could be supported with this water? All you need are three numbers: (1) South Carolina agriculture currently uses roughly 3 million acre-feet per year, (2) residential, institutional, and industrial water use totals approximately 133 gallons per person, per day in South Carolina, and (3) there are 326,000 gallons in an acrefoot. You’re on your own for this one. Show ALL work here, no work no points: (2 points
Click here to see answer by ikleyn(52754)  |
Question 1048124: 9) There have been proposals to accommodate South Carolina’s growing population with water that is now used for
agriculture. If half of the water (1.5 MAF) now going to agriculture went to urban and industrial uses instead, how
many new urban dwellers could be supported with this water? All you need are three numbers: (1) South Carolina
agriculture currently uses roughly 3 million acre-feet per year, (2) residential, institutional, and industrial water use
totals approximately 133 gallons per person, per day in South Carolina, and (3) there are 326,000 gallons in an acrefoot.
You’re on your own for this one. Show ALL work here, no work no points: (2 points)
Click here to see answer by ikleyn(52754)  |
Question 1048401: Answer each of the questions below:
a) Write the number in scientific notation: 4,345,000
b) Write the number in scientific notation: 0.00095
c) Write the number in standard notation, without exponents: 3.55×〖10〗^5
d) Write the number in standard notation, without exponents: 2.3×〖10〗^(-4)
Click here to see answer by ewatrrr(24785)  |
Question 1048401: Answer each of the questions below:
a) Write the number in scientific notation: 4,345,000
b) Write the number in scientific notation: 0.00095
c) Write the number in standard notation, without exponents: 3.55×〖10〗^5
d) Write the number in standard notation, without exponents: 2.3×〖10〗^(-4)
Click here to see answer by Boreal(15235)  |
Question 1048339: N is a fixed point on the circumference of a circle, centre O, radius 12cm.
A variable point moves round the circumference with a constant speed of 4cm/s. The angle PON is denoted by θ.
Find
(i) the rate of increase of θ in radians per seconds.
(ii)the rate of increase of the area of the sector NOP.
Click here to see answer by rothauserc(4718)  |
Question 1048414: If a hemispherical bowl of radius 6cm contains water to a depth of x cm the volume of the water is 1/3pix^2(18-x) cm^3. Water is poured into the bowl at a rate of 3cm^3/s. Find the rate at which the water level is rising when the depth is 2cm.
Click here to see answer by MathLover1(20849)  |
|
Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 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, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650
|