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Question 137753: A bag contians 4 black marbles, 6 red marbles, 9 green marbles, and 5 blue marbles. What is the probability of pulling 2 consecutive red marbles?
F. 5/92
G. 7/92
H. 9/92
J. 11/92
Click here to see answer by checkley77(12844)

Question 137786: find the inverse of the function f(x)= 3x-7
Click here to see answer by Fombitz(32388)

Question 137897: Factoring:
2x^3 - 6x^2 + 8x
Click here to see answer by checkley77(12844)

Question 138102: Two positive numbers are in the ratio of 5:12. If their product is 960, what is the positive difference between the two numbers?
Click here to see answer by stanbon(75887)

Question 138159: Tamika has a hard rubber ball whose circumference measures 13 inches. She wants to box it for a gift but can only find cube-shaped boxes of sides 3 inches, 4 inches, 5 inches, or 6 inches. What is the smallest box that the ball will fit into with the top on?
Click here to see answer by Earlsdon(6294)

Question 138185: Find the algebraic solution for the given inequality. Write in interval notation.
(3 / 2) v - 9 < 6v < (3 / 2) v + 6
Click here to see answer by stanbon(75887)

Question 138096: write a single logarithm....please explain how you got it-I've got to learn this
loga x + loga y - loga m
Click here to see answer by scott8148(6628)

Question 138086: An existing garden is the shape of a rectangle with a length of 15 ft and a width of 9 ft. A border of shrubs is to be placed around the garden. The border will have the same width all the way around the garden. Enough shrubs are needed to fill the area formed by the border. What is the width of the border?
Click here to see answer by scott8148(6628)

Question 138534: A negative number is 5 less than a second negative number. If the second number is multiplied by 2 less than the first, the product equals 8. Find the numbers.
Click here to see answer by ankor@dixie-net.com(22740)

Question 138693: The length of a rectangle is 2 less than twice the width. If the length is increased by 1 and the width is increased by 4, the resulting rectangle has an area which is 50 more than the area of the original rectangle. Find the dimensions of the original rectangle.
Click here to see answer by ankor@dixie-net.com(22740)

Question 138694: A freight train and a passenger train start toward each other at the same time from two towns that are 500 miles apart. After three hours the trains are still 80 miles apart. If the rate of the passenger train is 20 miles per hour faster than the rate of the freight train, find the rate of each train.
Click here to see answer by ankor@dixie-net.com(22740)

Question 138689: A truck traveling at a constant rate of 45 miles per hour leaves Buffalo traveling west. At the same time, a car leaves a city 800 miles west of Buffalo traveling east at a constant rate of 60 miles per hour. If both vehicles are traveling on the same highway, how far, to the nearest mile, will each vehicle travel before they meet?
Click here to see answer by josmiceli(19441)

Question 138719: T/F 1. In order to compare the characteristics of two different popuations, a sample should be extracted from each population.
T/F 2. When two populations are compared and samples taken from each, the data derived from the second sample should be dependent on the data from the first sample.
T/F 3. Whenever two population means are being compared, an acceptable null hypothesis is that the two population means equal each other.
T/F 4. Whenever two population means equal each other, the difference between them must be zero.
T/F 5. Irrespective of whether a two-tailed or one-tailed test is being conducted in order to compare two population means, the larger the differences in the sample means, the more likely that the null hypothesis will be rejected.
T/F 6. A larger-sample test for the difference between two populations can be conducted safely provided either of the two samples exceed 30.
T/F 7. The recommended procedure for estimating the pooled variance is to combine all the data from both samples together and calcualate the variance as if it were one sample.
T/F 8. If two samples both have less than 30 observations and unknown variances, there is no statistical test that can be used to compare the population means, even if both populations are normally distributed.
T/F 9. Given a paired study with 14 pretreatment measures and 14 post-treatment measures, the number of degrees of freedom for the test statistic is 28-1=27.
T/F 10. The null hypothesis for the difference between two population variances is the same for both two-sided, lower-tail, and upper-tail tests.
Please indicate why the question is FALSE.
Click here to see answer by stanbon(75887)

Question 139046: T F 1. One of the objectives of simple linear regression is to predict the value of the independent variable X as a linear function of the dependent variable Y.
T F 2. Regression analysis is limited to establishing a relationship between two variables, X and Y.
T F 3. If a deterministic relationship exists between two variables, x and y, any value of x that is selected will determine a unique value of y.
T F 4. When trying to uncover relationships between variables, the recommended practice is to construct a scatter plot first before conducting a statistical analysis.

T F 10. Whenever regression analysis is used to predict values of Y that are within the range of the X data, the process is known as interpolation.
T F 11. Extrapolation is most advisable if it is difficult to predict what the data relationship actually is beyond the range of the existing observations.
T F 12. Residuals can be computed by taking the difference between observed and predicted values of Y and squaring them to eliminate negative numbers.
T F 13. The sum of the residuals that surround a regression line will always be greater than or equal to zero.
T F 14. The stronger the relationship between X and Y, the closer the plotted points will be to the regression line.

T F 15. If two variables are highly correlated, the correlation coefficient will be at or near zero.
T F 16. The power of regression analysis is best illustrated by the fact that the presence of outliers has practically no impact on the values of the coefficients or their standard deviations.
Please indicate why the answer if FALSE> Thanks.

Click here to see answer by stanbon(75887)

Question 139221: Taya and Jed collect coins. The ratio of the number of coins in their collections, in some order, is 4 to 3. If Taya has 60 coins in her collection, how many coins could Jed have?
Click here to see answer by checkley77(12844)

Question 139362: IT IS A VERBAL STRATEGIES
CIRCUMFERENCE: THE CIRCUMFERENCE OF THE CLOCK WAS 42 INCHES. FIND THE DIAMETER IN INCHES.
(1) 7.5
(2) 13.4
(3) 38.9
(4) 45.14
(5) 131.9
Click here to see answer by checkley77(12844)

Question 139587: i don't really know any math and im in high school i failed it my first year and would really like help on EVERYTHING.....
Click here to see answer by solver91311(24713)

Question 139597: factoring using the Distributive property.
x3+3x2-4x-12
Click here to see answer by jim_thompson5910(35256)

Question 139671: How many 3 letter and 3 number licenses plates can be made if you cant use the numbers 1,2,3 and you cant use the letters t,v,w,x,y and no number or letter can repeat in the plate.
Click here to see answer by stanbon(75887)

Question 139670: A box holds 9 green marbles, 8 red marbles, and 7 blue marbles. Whats the probability of getting a green?
Click here to see answer by checkley75(3666)

Question 139668: In the deck there are 4 sevens, 4 eights, 4 nines, 4 tens, 4 jacks, 4 queens, 4 kings, and 4 aces. What is the probability of pulling out one card and its a queen or a ace?
Click here to see answer by checkley75(3666)

Question 139666: Solve 9! / 6! 3!
Click here to see answer by checkley75(3666)

Question 140006: Factor: y2 � 64
A) (y � 8)(y + 8)
B) (y � 8)2
C) (8 � y)(8 + y)
D) The expression is prime.

Click here to see answer by jim_thompson5910(35256)

Question 140007: Factor: z2 � 14z + 49
A) (z � 7)2
B) (z � 7)(z + 7)
C) (z � 14)(z + 1)
D) The expression is prime.

Click here to see answer by jim_thompson5910(35256)

Question 140008: Factor completely: 12p2 + 20p
A)2(6p2 + 10)
B)4p(3p + 20)
C)4p(3p + 5)
D)6p(2p + 5)

Click here to see answer by jim_thompson5910(35256)

Question 140010: Factor: st + 5b � bs � 5t
A) (s � 5)(t + b)
B) (s � 5)(t � b)
C) (s + 5)(t � b)
D) The expression is prime.

Click here to see answer by jim_thompson5910(35256)

Question 140011: Factor completely and match your result to the correct answer below.
r2 + 2r � 80
A)(r + 10)(r + 8)
B)(r � 10)(r + 8)
C)(r � 10)(r � 8)
D)(r + 10)(r � 8)

Click here to see answer by jim_thompson5910(35256)

Question 140015: Factor: 125x3 + 27
A) (5x + 3)(25x2 + 15x � 9)
B) (5x � 3)(25x2 + 15x + 9)
C) (5x + 3)(25x2 � 15x + 9)
D) The expression is prime.

Click here to see answer by checkley77(12844)

Question 140016: Solve the given equation.
18c2 + 3c � 10 = 0

Click here to see answer by checkley77(12844)

Question 140013: Factor completely and match your result to the correct answer below.
18x2 + 51x + 8
A)(9x + 8)(2x + 1)
B)(18x + 1)(x + 8)
C)(3x + 8)(6x + 1)
D)(3x + 1)(6x + 8)

Click here to see answer by checkley77(12844)

Question 140019: Reduce the given expression to lowest terms.
3x2+7x+2
--------
4x2-16

Click here to see answer by jim_thompson5910(35256)

Question 140019: Reduce the given expression to lowest terms.
3x2+7x+2
--------
4x2-16

Click here to see answer by checkley77(12844)

Question 140026: Solve using the quadratic formula:
25x2+30x+9=0
Click here to see answer by checkley77(12844)

Question 140027: Multiply and match your result to the correct answer below:
(z � 8)(z + 8)
A)z2 + 16
B)z2 � 64
C)z2 � 16
D)z2 � 16y � 64

Click here to see answer by checkley77(12844)

Question 140028: Perform the indicated operation. Match your result to the correct answer below.
(q � 5) � (�6q + 8)
A)6q � 13
B)�7q � 13
C)�5q + 3
D)7q � 13

Click here to see answer by checkley77(12844)

Question 140029: The floor plan of a house is rectangular. The house's length is 2x � 10 and its width is x + 3. Write an expression for the area of the house and match your result to the the correct answer below.
A)2x2 + 4x � 30
B)2x2 � 4x � 30
C)2x2 + 13x � 30
D)2x2 � 7x � 30

Click here to see answer by checkley77(12844)

Question 140030: Use FOIL to find the product and match your result to the correct answer below:
(2x + 7)(x + 9)
A)x2 + 11x + 18
B)2x2 + 16x + 63
C)x2 + 25x + 63
D)2x2 + 25x + 63

Click here to see answer by checkley77(12844)

Question 140031: Multiply: (3 � b)2
A)9 � b2
B)b2 � 9b + 9
C)b2 � 6b + 9
D)9 � 6b � 9 b2

Click here to see answer by checkley77(12844)

Question 140034: Simplify and match your result to the correct answer below.

7 2
___ - ___ =4
w 13
Click here to see answer by stanbon(75887)

Question 140024: A wildlife biologist caught, banded, and released 400 quail at a local quail ranch. One month later, he captured 100 quail in the same reserve and discovered that 16 of these were banded. Estimate the number of quail on the quail ranch and match your result to the correct answer below.
A)2000
B)1600
C)800
D)2500

Click here to see answer by stanbon(75887)

Question 140876: A,B,and C can finish a job in six days. If B and C work together, the job will take 9 days; if A and C work together, the job will take 8 days. In how many days can each man working alone do the job?
Click here to see answer by ankor@dixie-net.com(22740)

Question 140963: Label each of the following situations �P� if it is an example of parametric data or �NP� if it is an example of nonparametric data.
A comparison of salaries between male and female employees in the same organization. ____
Click here to see answer by stanbon(75887)

Question 141058: What amount of each mixture, one 95% alcohol nad the other 15% alcohol, must be used to make 10 liters of a mixture which is 45% alcohol?
What equation or equations will express this problem?
1. 0.95x + 0.15y=10
0.45(x+y)=0.45*10 star is multiply
2. 0.95x + 0.15x=0.45
3. 0.95x + 0.15(10-x)=0.45*10
4. x+y=10
0.45x+0.95y=0.45*10

second question
A lever 12m long balances weight of 48kg on one end and 24kg on the other end. Find the length of the two arms of the lever.
third question
How is the following system of equations classified?
fourth qestion
A bicyclist and a hiker leave the same place at the same time and travel in the same direction. the bicyclist travels three times as fast as the hiker. At the end of 3 hr they are 24 miles apart. How fast does the hiker travel?
can I get help with any type of calculus qestion?

Click here to see answer by stanbon(75887)

Question 141072: 6x(squared)-10+27x=180
Click here to see answer by checkley77(12844)

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, 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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