Number of results: 18,999
Math
105 91 82 59 97 72 72 88 81 What is the mode of these scores? A.46 B.72 C.82 D.83 B? 2.The test scores of 1 students are shown below 95 63 78 86 84 86 91 95 72 93 87 74 What is the median score of the 6 highest grades? A.86 B.91 C.92 D.93 C? 3.The test scores of 12 students ...
Thursday, March 21, 2013 at 5:55pm by Jerald
Math
Yes 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
Tuesday, October 18, 2011 at 6:51pm by mary
Math
Chart 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
Wednesday, November 2, 2011 at 3:49pm by Harry
Math
For the following data... 1. Provide evidence as to whether this data set if Gaussian or non Gaussian. 2. Determine the normal reference range. 3. Define a cut-off. Describe how a ROC curve can be used to determine such. 95 95 81 95 98 79 88 98 84 79 98 84 81 96 102 86 90 101 ...
Thursday, April 12, 2012 at 5:32pm by Joe
algebra
I do not know if there are multiple solution, here's what I've found. The sums of weighed pairs are all correct, but the individual weights are not integers. A=81/2 B=87/2 C=89/2 D=93/2 A+B=84 A+C=85 A+D=87 B+C=88 B+D=90 C+D=91
Thursday, February 23, 2012 at 5:55pm by MathMate
splitting number
can u help me by splitting them its to hard! 1.87-8= 2.53-5= 3.92-5= 4.65-8= 5.23-5= 6.84-8= 7.91-9= A few: 1) 87-8 =88-8+1 5) 23-5= 20-5+3 7) 91-9=90-9+1 A few: 1) 87-8 =88-8+1 5) 23-5= 20-5+3 7) 91-9=90-9+1
Tuesday, May 22, 2007 at 4:58am by Nattisha
Math
81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 93, 94, 95, 96, 97, 98 I see two numbers above in which the digits add up to 13.
Tuesday, September 13, 2011 at 5:36pm by Ms. Sue
Geometry
The following scores on the midterm exam in Chemistry 102 were recorded: 93 81 59 69 82 73 61 77 95 84 88 71 86 97 63 72 89 80 60 98 91 62 78 83 76 81 94 66 83 96 Find the interquartile range (IQR).
Sunday, November 22, 2009 at 11:23pm by aleah
math
The following scores on the midterm exam in Chemistry 102 were recorded, 93 81 59 69 82 73 61 77 95 84 88 71 86 97 63 72 89 80 60 98 91 62 78 83 76 81 94 66 83 96 find the interquartile range. I do not understand this question.
Sunday, January 17, 2010 at 8:07pm by Christy
MATH
The following scores on the midterm exam in Chemistry 102 were recorded: 93 81 59 69 82 73 61 77 95 84 88 71 86 97 63 72 89 80 60 98 91 62 78 83 76 81 94 66 83 96 Find the interquartile range (IQR). I FORGET HOW TO DO THIS
Wednesday, November 18, 2009 at 4:39pm by JEN
mean & mode ?
If you were a teacher, and these numbers represented your students' scores on a test, would the median or mean give a better picture of the overall class performance? The numbers are 22,38,42,65,75,76,79,82,83,87,88,89,89,91,92,94,96,97,98 The mean is: 78.053 & the ...
Wednesday, February 18, 2009 at 2:39pm by ash
Math: Statistics
Organize the data into a class interval frequency distribution using 10 intervals with frequency (f) and relative frequency (rf). Data Set: 100, 97, 99, 70, 72, 75, 82, 68, 85, 88, 71, 77, 93, 94, 54, 59, 83, 87, 98, 84, 72, 96, 98, 89, 74, 98, 77, 82, 83, 98, 90, 95, 85, 76, ...
Tuesday, October 18, 2011 at 12:56am by Joy Chapman
Math help!
I thought if I couldn't get it to subtract 81-87? So I just put 81, 82, 83, 84, 87? Then go from there to get my middle? ok And the best sounds like it would difinietely be 84. I am going to go back to my chapter and see what I forgot. Thanks Ms. Sue!
Wednesday, October 10, 2012 at 7:41pm by Belle
5 th grade math
The scores earned by the students on a recent assignment are listed below. what are the maximum and minimum of the scores? 74,80,80,83,84,85,90,87,91,92,91,93,81,95,73,82,78,94. maximum______? minimum______? please help me with this problem thank you!!
Tuesday, October 12, 2010 at 12:08am by pat
psychology
1.A 2.C 3.C 4.B 5.A 6.A 7.A 8.C 9.B 10.C 11.C 12.A 13.D 14.A 15.C 16.B 17.A 18.D 19.B 20.B 21.A 22.C 23.A 24.D 25.B 26.B 27.A 28.A 29.C 30.C 31.C 32.C 33.D 34.A 35.B 36.A 37.A 38.D 39.A 40.C 41.B 42.C 43.A 44.C 45.D 46.D 47.B 48.B 49.B 50.B 51.A 52.B 53.A 54.D 55.D 56.A 57.C ...
Saturday, November 12, 2011 at 12:37am by adeniyi
Statistics
Calculate the mean, median, and mode for the following data set. Is the distribution normal or skewed? If its skewed, is it positively skewed or negatively skewed? Which of these measures of central tendency would be most appropriate? Data Set: 100, 97, 99, 70, 72, 75, 82, 68...
Tuesday, October 18, 2011 at 1:41am by Joy Chapman
physics
a = -87/11 = -7.91 m/s^2 s = 87t - 3.95 t^2 = 87(11) - 3.95(121) = 479.05 m
Tuesday, November 6, 2012 at 8:32pm by Steve
math
Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.
Wednesday, May 4, 2011 at 6:29pm by Tom
MATH Please help me
Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.
Wednesday, May 4, 2011 at 6:17pm by Tom
Math (stastiscs)
Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.
Wednesday, May 4, 2011 at 6:10pm by Tom
Math
Score Percentile Score Percentile Score Percentile Score Percentile -3.5 0.02 -1 15.87 0 50 1.1 86.43 -3 0.13 -0.95 17.11 0.05 51.99 1.2 88.49 -2.9 0.19 -0.9 18.41 0.1 53.98 1.3 90.32 -2.8 0.26 -0.85 19.77 0.15 55.96 1.4 91.92 -2.7 0.35 -0.8 21.19 0.2 57.93 1.5 93.32 -2.6 0.47...
Saturday, May 12, 2012 at 8:59pm by Need Help!!!
cis
I have to find three errors and ther two logic and syntax error. HELP ME IN IT AND Below is code. Rem ===========BEGIN SAMPLE CODE============ REM Read 9 scores and report the average Dim score(10) For i = 1 to 10 CALL fillArray PRINT "The average score is "; Sum()/...
Friday, February 25, 2011 at 4:15pm by ami
Statistics
MBA_GPA BS GPA 2.82 3.05 3.49 3.45 3.28 3.5 3.25 3.55 3.26 3.3 2.87 3.05 3.16 3.35 3.4 3.35 2.84 3.05 3.72 3.7 3.22 3.5 3.44 3.55 3.65 3.9 3.02 3.3 3.03 3.25 3.8 3.8 3.23 3.5 3.26 3.5 3.53 3.75 3.75 3.9 3.15 3.2 3.66 3.75 3.36 3.45 3.79 3.85 2.85 3.05 3.74 3.9 3.23 3.25 3.52 3...
Saturday, December 29, 2012 at 6:55pm by rebecca
Chemistry
26.2 g of N*(1 mole of N/14.01g)= moles of N=1.87 moles of N 7.5 g of H *(1 mole of H/1.007 g of H)= moles of H=7.45 moles of H 66.3 g of Cl *(1 mole of Cl/35.45g of Cl)= moles of Cl=1.87 moles of Cl take the lowest number of moles, and divide by the others. N=1.87/1.87=1 H=7....
Tuesday, February 26, 2013 at 8:29pm by Devron
math
80, 81, 82, 83, 84, 85, 86, 87, 88, 89 Which number fits the description?
Tuesday, October 19, 2010 at 5:27pm by Ms. Sue
Stats
a. What are the values for TP, TN, FP, and FN for class value = 1? b. What are the sensitivity, specificity, and FPR for class value = 1? === Run information === Scheme: weka.classifiers.trees.J48 -C 0.25 -M 2 Relation: sattrn Instances: 4435 Attributes: 37 pixel1_1 pixel1_2 ...
Thursday, July 8, 2010 at 3:30pm by Fred Smith
Math help!
The median is not 3. The median is the middle number of a set. 61, 81, 81, 87, 89, 93 The middle of this set is the number between 81 and 87 = 84
Wednesday, October 10, 2012 at 7:41pm by Ms. Sue
Math
First period: 85, 83, 74, 70, 88,95,89,72,90,83,77,91,98,89,82,84 Second period: 95,89,82,81,72,69,100,97,75,91,82,79,96,81,80,95,89,97,83,71 Mark is a student in the first period class. His score on the exam was 95%. Zoe is a student in the second period class, she also ...
Wednesday, November 14, 2012 at 7:36pm by Angie
statistics
A professor is interested in knowing the correlation, if any, of students’ scores on the first and second exams given in his class. Test 1 Test 2 92 86 90 87 89 85 82 90 88 79 92 90 100 92 91 84 Is there a significant correlation? Explain its statistical significance, if ...
Sunday, February 12, 2012 at 8:09pm by John
Statistics
The following data set represents the repair costs (in dollars) for a random sample of 30 dishwashers. 41.82 52.81 57.80 68.16 73.48 78.88 88.13 88.79 90.07 90.35 91.68 91.72 93.01 95.21 95.34 96.50 100.05 101.32 103.59 104.19 105.62 111.32 117.14 118.42 118.77 119.01 120.70 ...
Saturday, October 31, 2009 at 3:32pm by Josh
stats
Are you studying Markov's chains? let's set up a transition matrix 33/87 6/87 43/87 5/87 let's multiply [0 1] by this matrix to get [ 43/87 5/87] (first number represents ontime-Upstate) so how about 43/87 or .4943 ? Not absolutely sure about this.
Wednesday, July 14, 2010 at 11:05pm by Reiny
statistics
In this unit we have worked with scores and their locations within a distribution. This discussion is designed to get you to think a little more about distributions of scores. Shown below are two samples of scores. Input these scores into SPSS and use plots and data ...
Sunday, February 26, 2012 at 5:29pm by john
math115
1. find the median 4,5,6,8,11,17=6 2.find the median and the mean 95,75,76,86,96,71,68,81,95,76,69,82,93,88,94= median 81 mean 83 3. find the mean 13,15,18,18,18,19,22,26,28,33=21 4. find the median 47,25,58,28,67,66=52 1/2
Monday, October 12, 2009 at 6:01pm by p
Math
2. The six highest grades are 95, 95, 93, 91, 87
Thursday, March 21, 2013 at 5:55pm by Ms. Sue
statistics
The following is a sample of 19 Novemeber utilily bills(in dollars) from a neighorhood: 52,62,66,68,72,74,74,76,76,76,78,78,82,84,84,86,88,92,96. Find the five-number summary.
Wednesday, March 7, 2012 at 8:28am by Rose
Math URGENT!
Why did you multiply 0.87 by 7? 1/8x = 0.87 0.125x = 0.87 x = 0.87 / 0.125 x = 6.96 m
Wednesday, November 14, 2012 at 8:24pm by Ms. Sue
math
It should have been real easy for you to check your own answer. Is 64.96% of 87.56 = 22.6 ???? let's see: .6496(87.56) = 56.89 , not 22.6 so what do you think? but x% of 87.56 = 22.6 x = 22.6/87.56 = .2581 = 25.81% Now test that one.
Monday, March 15, 2010 at 11:07pm by Reiny
6th grade MATH
A composite number is a positive integer which has a positive divisor other than one or itself. Some composite numbers are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, ...
Wednesday, August 18, 2010 at 11:05pm by confused by adverbs and adjectives
math
1+17=18 3+15=18 5+13=18 7+11=18 4*18=72 45+99=144 47+97=144 49+95=144 51+93=144 53+91=144 55+89=144 57+87=144 59+85=144 61+83=144 63+81=144 65+79=144 67+77=144 69+75=144 71+73=144 14*144=2016
Monday, March 14, 2011 at 5:02pm by Anonymous
Math
What is the range of 100, 95, 88, 0, and 87?
Sunday, February 26, 2012 at 11:09pm by Jean
math Statistics
Hi I need help with Statistics. Can anyone help me to understand it better? I am in fear that if I do not figure this out soon I will fail my class. I am needing help with the chapters 12,and 13. in the book called Statistical Reasoning in the Behavioral Sciences, 6th edition...
Sunday, February 19, 2012 at 12:56pm by Sara
math
The following scores were recorded on a 100-point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores.
Monday, April 25, 2011 at 7:16pm by sammy
algebra
The following scores were recorded on a 100-point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores.
Monday, April 25, 2011 at 5:21pm by Lisa
Math
The following scores were recorded on a 100-point examination: 95,75,76,86,96,71,68,81,95,76,69,82,93,88,94 Find the mean and median final examination scores.
Monday, January 28, 2008 at 7:49pm by greatdanelola
statistics
. A professor is interested in knowing the correlation, if any, of students’ scores on the first and second exams given in his class. Test 1 Test 2 92 86 90 87 89 85 82 90 88 79 92 90 100 92 91 84 Is there a significant correlation? Explain its statistical significance, ...
Sunday, February 12, 2012 at 8:10pm by John
arithmetic
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99
Thursday, December 11, 2008 at 5:40pm by Ms. Sue
3rd grade-math
85, 86, 87, 88, 89, 91, 92, 93, 94
Wednesday, September 30, 2009 at 9:24pm by Ms. Sue
statistics
OK, so selecting five numbers at random, I will use: 75, 76, 83, 91, 87 Mean: (75 + 76 + 83 + 91 + 87)/5 = 82.4 Median: is the middle number, so 83. Mode: is the number which repeats the most, so since no numbers repeat, there is no mode. Midrange: is the average of the ...
Thursday, December 13, 2007 at 8:34pm by The Prez
Statistics
Two problems: 1. Find D sub 3 of the following data set: 60, 40, 26, 33, 23, 53, 36, 23, 28, 12, 30, 47 2. Find P sub 26 of the following 25 scores: 38.5, 41.5, 52, 52.5, 61, 63, 63.5, 68, 69, 69, 78.5, 79, 80, 83, 87, 88.5, 88.5, 91, 91.5, 92, 92.5, 94, 94, 97, 97 I have a ...
Wednesday, June 24, 2009 at 6:21pm by Amy
Chemistry
I assume that at equilibrium Ptotal = 3.87 atm. .........C(s) + CO2(g) ==> 2CO(g) E...............3.87-p......p.. If Ptotal = 3.87, if we call CO p then CO2 is 3.87-p. Substitute into Kp expression and solve.
Saturday, February 23, 2013 at 7:42pm by DrBob222
business Maths
A) Interest $ 69.87 B) Maturity value $ 3,969.87 Explanation: a: 365 Sept. 20= – 263 ________ 102 + 27 __________ 129 $3,900 ×0.05 × 129/360 = $69.88 interest b: $69.88 + $3,900 = $3,969.88
Monday, April 23, 2012 at 10:07pm by Ekanki
Math
(85+88+87+93+95+92+83+ x)/8 = 90 solve for x
Saturday, May 11, 2013 at 2:00pm by Reiny
Stats
62.Refer to the Baseball 2009 data, which report information on the 30 Major League Baseball teams for the 2009 season. a. At the .05 significance level, can we conclude that there is a difference in the mean salary of teams in the American League versus teams in the National ...
Sunday, December 2, 2012 at 2:51pm by Anonymous
Physics
The acceleration of gravity, g = 9.81 m/s^2, has to have an effect on the answer. Solve 0 = 31 - 7.40 t - (4.905)t^2 for t. Take the positive root of the quadratic equation. t = [7.40 - sqrt (76.56 +588.6]/-9.81 = 1.87 s
Saturday, October 10, 2009 at 7:19pm by drwls
math check
Posted by TchrWill on Thursday, July 14, 2005 at 5:44pm. 2.)The sum of four consecutive odd integers is -336. Set up an equation AND solve for all of the integers. Two ways to approach this. -336/4 = -84 making the 4 consecutive odd numbers -81, -83, -85 and -87. Alternatively...
Sunday, July 17, 2005 at 7:17pm by angel
permutation
What would be the next 5 numbers after these: 66-30-34-57-87 & 46-79-32-36-82
Sunday, April 7, 2013 at 12:03pm by labe
permutation
What would be the next 5 numbers after these: 66-30-34-57-87 & 46-79-32-36-82
Sunday, April 7, 2013 at 11:57am by labe
Statistics Help Please
How do I tell if this is a mean or a proportion 1. Insurance companies track life expectancy information to assist in determining the cost of life insurance policies. The insurance company knows that, last year, the life expectancy of its policyholders was 77 years. They want ...
Monday, November 12, 2007 at 1:25pm by LT
math
find the median and mean of this numbers 95,75,86,96,70,68,76,81,95,76,69,83,93,88,94 Is the median 83and the mean 83 if i arrange the numbers in ascending order
Friday, September 24, 2010 at 11:06am by davis
Percentage
100 * 0.87 = $87 87 * 0.07 = ?
Monday, October 8, 2012 at 8:32am by Ms. Sue
statistics
Hypothesis testing on a paired sample, using the sign test. An educational psychologist suspects that having cats improves performance on statistics finals. With funding from the Socks foundation, she did a pair study, with carefully chosen pairs of students, one having a cat...
Monday, May 5, 2008 at 10:05am by amanda
6th grade math
Which proportion can you use to find the width of a full size railroad track? of 1 millimeter for every 87 millimeters in a full size train. The model railroad cars run on a track that is 16.5 mm wide. f) 1/87 = x/16.5 g) 1/87 = 16.5/x h) 1/x= 87/16.5 j) 16.5/87 = x/1
Saturday, April 23, 2011 at 4:56pm by Suzanne
math
Although the answer seems obvious, it is rather difficult to prove. No, it is most unlikely that p=6n+1 will yield more than 50% of primes all the time. It is true that the formula will yield more than 50% primes for n up to 147, where there are 74 primes. The next prime ...
Wednesday, June 24, 2009 at 2:15am by MathMate
Math
Your question, "If 87 people entered the raffle, how many ways can the winners be arranged?" seems to imply that the prizes do not enter the picture. The winners can be arranged in 87*86*85*84*83 or 4433982840 If you imply that each of them could have picked a ...
Tuesday, February 19, 2008 at 6:52pm by Reiny
statistics
Measures of Central Tendency,variability, and postion 12th Grade math class. organize the data 78,67,95,85,84,86,82,75,85,94,91,57,78,77,88,90,91,86,84,82,75,58,73,75. Then do 4 columns of Grades,Deviations,Squares,and Z-Scores
Wednesday, November 30, 2011 at 12:21pm by Lisa
math
The following scores were recorded on a 100-point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores. State the mode. Mode: Median: Mean:
Saturday, April 7, 2007 at 10:26pm by Lisaraye
Physics
from your work I guess you are pulling at 36.87 deg up and not pushing down. If so I agree with the 4.84 m/s^2 now the sum of forces on the upper package must give an acceleration of 4.84 m/s^2 20 (4.84) = 400 cos 36.87 - [200 -400 sin 36.87] mu hmmm, you must be pulling up on...
Monday, April 7, 2008 at 4:54am by Damon
math -- oops! Sorry!
I forgot how to count. Yes. The SIX highest scores are 95, 95, 93, 91, 87, 86. You were right the first time. The median is C, 92. I should tell you that the few times I taught 7th grade math, I was distressed to find that I was only about 95% correct. Any student who politely...
Thursday, March 21, 2013 at 5:55pm by Ms. Sue
physics
average speed = (distance travelled)/time = (0.90 + 0.97)/[.90/84.8 + 0.97/41.6] = 1.87 /(0.010613 + 0.023317) = 1.87 / 0.03393 = 55.1 miles/hr
Friday, January 15, 2010 at 9:55pm by drwls
Math
find median 4,5,6,8,11,17 answer 7 find mean and median 68,69,71,75,76,76,81,82,86,88,93,94,95,95,96 answer mean is 83 median is 82 ?
Saturday, October 17, 2009 at 2:44pm by david
Basic Math
Im so confused with these questions: which of the following numbers are composite? 0,1,15,19,23,31,49,55,59,87,91,97,103,105 A. 1,23,31,59,91 B. 15,49,55,87,91,105 c. 0,1,19,23,31,105
Tuesday, January 22, 2008 at 8:53pm by Michelle
finance
4.48 - 2.40 = 2.08 2.08/ 2.4 = 0.87 = 87% 87/5 = 17.3% per year
Saturday, March 13, 2010 at 4:29pm by Ms. Sue
algebra
If you have a positive exponent, you move to the right that many times. If you have a negative exponent, you move to the left that many times. 8.87 x 10^7 means move 8.87 to the right 7 times. 88,700,000 (To check this imagine the decimal is where it started, at 8.87..then ...
Thursday, August 19, 2010 at 10:17pm by Jen
7/8 Math URGENT!!! PLZ HELP!! ANYONE????
45.87 - 42 = 3.87 3.87 / 42 = 0.092 = 9.2%
Thursday, December 13, 2012 at 9:50pm by Ms. Sue
math
i) when t=1, y = 95-16 = 79 when t=1.01 , y = 95(1.01) - 16(1.01)^2 = 79.6284 avg vel = (79.6284-79)/(1.01-1) = 62.84 repeat for ii) and iii) you should be able to draw your conclusion by looking at those results.
Wednesday, August 11, 2010 at 4:03pm by Reiny
Math
75, 76, 77, 78, 79, 81, 82, 83, 84 Which of those numbers have digits that add up to 15?
Thursday, September 15, 2011 at 9:42pm by Ms. Sue
math
Miss C gives a test to the 10 students in her first-period algebra class. The grades are 93,82,95,86,90,84,89,79,87,93 A. Find the mean and Standard Deviation of the 10 scores. B. List all the reasons for why the late class could have a different mean or standard deviation
Thursday, May 17, 2012 at 1:18pm by Kate
More Algebra
Um. Well I tried this but im not sure: A) 113+x= 112 -113 -113 B) 87+p= 225 -87 -87 C) No idea :{
Sunday, October 2, 2011 at 5:22pm by Jab
Algebra 2
81+76+82=239 239/3=79.6 81+81+76+82=320 320/4=80 your missing number or the grade you need to get is an 81 at least. if you make an 81. you will have an 80 as you average grade
Wednesday, October 19, 2011 at 10:25pm by Jillian
trig
measured from the plane, the building subtends an angle of 9° the distance d from the top of the building to the plane is found by d/sin50° = 40/sin9° d = 195.87 now, knowing d, the height h of the plane can be found: (h-40)/d = sin31° (h-40)/195.87 = sin31°...
Wednesday, November 28, 2012 at 11:43pm by Steve
math
9x-8=4x+87 9x - 4x = 87 + 8 5x = 95 x = ?
Thursday, October 18, 2012 at 3:11pm by Ms. Sue
Maths
square both sides sin^2 x + 2sinxcosx + cos^2 x = 4/9 1 + sin 2x = 4/9 sin 2x = -5/9 2x = 213.75 or 2x = 326.25 x = 106.87º or x = 163.126º but since we performed a "squaring" operation we have to verify each answer. when x = 106.87 , sin106.87 + cos106.87...
Thursday, May 22, 2008 at 9:33am by Reiny
math
Which shows the gymnastic scores in order from least to greatest? 9.72, 9.8, 9.78, 9.87 9.78, 9.72. 9.87, 9.8 9.78, 9.8, 9.72, 9.87 9.72, 9.78, 9.8, 9.87
Tuesday, March 27, 2012 at 11:15pm by destiny
math
X+4=91 x=-4=91-4 x=87
Sunday, September 27, 2009 at 9:55pm by Toni
Healt
Thank you for using the Jiskha Homework Help Forum. Not only does it depend upon size, shape, but do you want to lose, maintain or gain. Here is where you can calculate the desired number of calories: 1. http://walking.about.com/cs/calories/l/blcalcalc.htm 2. http://www.inch-...
Wednesday, April 18, 2007 at 6:29pm by SraJMcGin
Math/Trig
150 at 180° = (-150,0) 170 at 210°50' = (-146,-87) total: (-296,-87) distance = √(296^2 + 87^2) = 309 mi
Thursday, September 27, 2012 at 10:15am by Steve
GPA calc
You might try www.wolframalpha.com If you're computing straight GPA, then it's just an average -- like this: 89+90+95+78+87 ÷ 5 = 87.8 But if you're also having to weight the grades by units taken or AP courses, it'll be more complicated.
Thursday, November 12, 2009 at 2:28pm by Writeacher
Physics
4.564.8.56.4..64..564.5.71..897.91.798.178.78.7.891178.978.9117845.164..1.745..74.7.4.845.8964..84.5.48.64..4.65.45.64.54.654.6.84..867.48.6746..564.56.4.6.475.1./845.78.4.5.78465..7485.8.65.45.4545.68.5.458.5..74.5.78/9.7.4154.56.7.84.67.897.897.8.74.4.87.9.86.4789.75.46.7....
Wednesday, November 3, 2010 at 7:34pm by Erin
6th grade
100-87=13 so its 13/87 as a fraction. your answerr is 13 over 87.
Tuesday, February 24, 2009 at 4:51pm by Aileen
math help!!!!
a teacher marking an extra credit assignment gave the following marks: 49, 53, 61, 65, 68, 71, 79, 87, 88, 90 what is the z-score corresponding to the lowest mark?
Monday, January 10, 2011 at 4:31pm by math help!!!!
chemistry help
Molecular weight os AgNO3 = 169.87 You have 29.66 g, therefore you have 29.66 / 169.87 moles = 0.174 moles. This is in 100 ml. Molarity is moles per liter, so, 0.174 x (1000/100) = 1.75. Concentration of the solution = 1.75 M. Worked out with chemCal for the iPhone/iPod Touch.
Saturday, May 9, 2009 at 12:06am by Nick
Exploring mathematics elementary algebra
Did you mean the "sum of the digits of a two-digit number is 15" ? if so, then let the unit digit be x let the tens digit be y so the value is 10y + x "One third of the number diminished by 12 is 17" ---> (1/3)(10y+x) - 12 = 17 (1/3)(10y+x) = 29 ...
Thursday, January 6, 2011 at 10:34pm by Reiny
Math
Ok.. Can u check these for me too please? Rename each repeating decimal as a fraction in lowest terms. Using let statement, an equation, a proper solution (using properties of equality) 1) 0.87 (repeating nos are 87) So.. Let X = 0.87 100X = 87.87 - &...
Thursday, November 29, 2012 at 6:46pm by Help
math
Eq1: 5X - Y = 87 Eq2: 4X - Y = 34.8 Multiply Eq1 by -1: -5X + Y = -87 4X - Y = 34.8 Add the 2 Eqs: -X = = - 52.2, X = 52.2. Substitute 52.2 for X IN Eq1: 5*52.2 - Y = 87, 261 - Y = 87, -Y = 87 - 261, -Y = -174, Y = 174. Solution Set = (52.2 , 174) = Point where the two graphs ...
Thursday, December 16, 2010 at 6:21pm by Henry
Business math
Pt = (Po*r*t)/(1-(1+r)^-t). r = (9%/12)/100% = 0.0075 = Monthly % rate expressed as a decimal. t = 7yrs * 12mo/yr = 84 Months=Length of loan. Pt=(50000*0.0075*84)/(1-(1.0075)^-84) = $67,574.13. Monthly Payments=67574.13 / 84=$804.45 Year Monthly Int. Prin. Bal. 6. $804.45 74....
Tuesday, March 27, 2012 at 12:02am by Henry
physics
t=90 min = 1.5 h t1= 36.6 min =0.61 h s1=v1•t1=76.5•0.61=46.665 km t2=1.5-0.61= 0.89 h. s2=95.1•0.89=84.639 km s=s1+s2=46.665+84.639=131.304 km Ave speed = s/t = 131.304/1.5 =87.536 km/h
Thursday, October 4, 2012 at 9:00pm by Elena
Math
85 + 87 + 77 = 249 > Henry's points to date. The total points for four tests = 400 400 * 0.84 = 336 336 - 249 = 87
Tuesday, August 9, 2011 at 6:58pm by Ms. Sue
trig
in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks ...
Monday, September 8, 2008 at 9:13pm by jerson
trig.
in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks ...
Monday, September 8, 2008 at 8:24pm by jerson
Math
Mike scored 85, 88, 87, 93, 95, 92, and 83 on his math tests. What is the least he can score on the next test if he wants to maintain a 90 average? PLZ HELP ME!!!!!!!! I'm so confused
Saturday, May 11, 2013 at 2:00pm by Abigail
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