Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
1401	Find the Number of Possibilities	7 permute 0	${}_{7}P_{0}$
1402	Find the Number of Possibilities	7 permute 12	${}_{7}P_{12}$
1403	Simplify	2i square root of 3(i square root of 3- square root of 2)	$2 i \sqrt{3} (i \sqrt{3} - \sqrt{2})$
1404	Find the Number of Possibilities	13C^3*(13C^4)	$13 C^{3} \cdot (13 C^{4})$
1405	Find the Number of Possibilities	7 permute 6	${}_{7}P_{6}$
1406	Find the Number of Possibilities	10C^8(0.72)^8(0.28)^2	$10 C^{8} {(0.72)}^{8} {(0.28)}^{2}$
1407	Find the Number of Possibilities	7 permute 8	${}_{7}P_{8}$
1408	Find the Number of Possibilities	7 permute 9	${}_{7}P_{9}$
1409	Find the Number of Possibilities	7Px	$7 P x$
1410	Find the Number of Possibilities	8!	$8!$
1411	Find the Number of Possibilities	8C	$8 C$
1412	Find the Number of Possibilities	8C^5	$8 C^{5}$
1413	Find the Number of Possibilities	8P^4	$8 P^{4}$
1414	Find the Number of Possibilities	9 choose 9	${}_{9}C_{9}$
1415	Find the Number of Possibilities	8C^4*(45C^4)	$8 C^{4} \cdot (45 C^{4})$
1416	Find the Number of Possibilities	81Px^7	$81 P x^{7}$
1417	Find the Number of Possibilities	84 permute 2	${}_{84}P_{2}$
1418	Find the Number of Possibilities	84 permute 6	${}_{84}P_{6}$
1419	Find the Number of Possibilities	85000 permute 36	${}_{85000}P_{36}$
1420	Find the Number of Possibilities	8 choose 14	${}_{8}C_{14}$
1421	Find the Number of Possibilities	8 choose 15	${}_{8}C_{15}$
1422	Find the Number of Possibilities	8C^8(0.25)^8*(0.75)^(8-8)	$8 C^{8} {(0.25)}^{8} \cdot {(0.75)}^{8 - 8}$
1423	Find the Number of Possibilities	8 permute 0	${}_{8}P_{0}$
1424	Find the Number of Possibilities	900 permute 4	${}_{900}P_{4}$
1425	Find the Number of Possibilities	900 permute 9	${}_{900}P_{9}$
1426	Find the Number of Possibilities	98C^7-809P^12a-i	$98 C^{7} - 809 P^{12} a - i$
1427	Find the Number of Possibilities	990 choose 10	${}_{990}C_{10}$
1428	Find the Number of Possibilities	99 choose 99	${}_{99}C_{99}$
1429	Find the Number of Possibilities	9 choose 24	${}_{9}C_{24}$
1430	Find the Number of Possibilities	9C^3*(7P^2)	$9 C^{3} \cdot (7 P^{2})$
1431	Find the Number of Possibilities	15C^8+15C^9+15C^10+15C^11+15C^12+15C^13+15C^14+15C^15	$15 C^{8} + 15 C^{9} + 15 C^{10} + 15 C^{11} + 15 C^{12} + 15 C^{13} + 15 C^{14} + 15 C^{15}$
1432	Find the Number of Possibilities	sCs-1	$s C s - 1$
1433	Find the Number of Possibilities	sP^2	$s P^{2}$
1434	Find the Number of Possibilities	P(F(0.7))	$P (F (0.7))$
1435	Find the Number of Possibilities	P((f(x)H)/R)	$P (\frac{f (x) H}{R})$
1436	Find the Number of Possibilities	P(r-5)	$P (r - 5)$
1437	Find the Number of Possibilities	P(a)	$P (a)$
1438	Find the Number of Possibilities	nP	$n P$
1439	Find the Number of Possibilities	nP^3	$n P^{3}$
1440	Find the Number of Possibilities	A+2C	$A + 2 C$
1441	Find the Number of Possibilities	aP^2	$a P^{2}$
1442	Find the Number of Possibilities	bC	$b C$
1443	Find the Number of Possibilities	BnAalphaC	$B n A α C$
1444	Find the Number of Possibilities	C(4+4)	$C (4 + 4)$
1445	Find the Number of Possibilities	CaC	$C a C$
1446	Find the Number of Possibilities	Com (18,12)	Com $(18, 12)$
1447	Find the Number of Possibilities	cos(180)(sin(135)tan(30)-cos(135))^22*(2P^3)	$\cos (180) \cdot {(\sin (135) \cdot \tan (30) - \cos (135))}^{22} \cdot (2 P^{3})$
1448	Find the Number of Possibilities	9C^65C^33C	$9 C^{65} C^{33} C$
1449	Find the Number of Possibilities	9C^67P^7	$9 C^{67} P^{7}$
1450	Find the Number of Possibilities	9 choose 8	${}_{9}C_{8}$
1451	Find the Number of Possibilities	9 choose 87	${}_{9}C_{87}$
1452	Find the Number of Possibilities	(20P^14)/(14!)-20C^14	$\frac{20 P^{14}}{14!} - 20 C^{14}$
1453	Find the Number of Possibilities	natural log of square root of P/(q^(2r))	$\ln (\sqrt{\frac{P}{q^{2 r}}})$
1454	Find the Number of Possibilities	mCn	$m C n$
1455	Find the Number of Possibilities	mPn	$m P n$
1456	Find the Number of Possibilities	n+1Cr	$n + 1 C r$
1457	Find the Number of Possibilities	Na2(Cnn(2))3+HCl	$N a \cdot 2 (C n n (2)) \cdot 3 + H C l$
1458	Find the Number of Possibilities	nC^0	$n C^{0}$
1459	Find the Number of Possibilities	nC	$n C$
1460	Find the Number of Possibilities	nCn-2	$n C n - 2$
1461	Find the Number of Possibilities	10C^10*(10C^0)	$10 C^{10} \cdot (10 C^{0})$
1462	Find the Number of Possibilities	nCn-r	$n C n - r$
1463	Find the Regression Line	table[[x,y],[1,-2],[2,-6],[3,-6],[4,4],[5,30],[6,78]]	$\begin{array}{c} x & y \\ 1 & - 2 \\ 2 & - 6 \\ 3 & - 6 \\ 4 & 4 \\ 5 & 30 \\ 6 & 78 \end{array}$
1464	Find the Regression Line	table[[x,y],[1,3],[2,4],[3,11],[4,19],[5,55],[6,112]]	$\begin{array}{c} x & y \\ 1 & 3 \\ 2 & 4 \\ 3 & 11 \\ 4 & 19 \\ 5 & 55 \\ 6 & 112 \end{array}$
1465	Find the Regression Line	table[[x,y],[1,3.9],[2,8.7],[3,16.7],[4,27.9],[5,42.3],[6,59.9]]	$\begin{array}{c} x & y \\ 1 & 3.9 \\ 2 & 8.7 \\ 3 & 16.7 \\ 4 & 27.9 \\ 5 & 42.3 \\ 6 & 59.9 \end{array}$
1466	Find the Regression Line	table[[x,y],[1,5],[2,4],[3,3],[4,2],[5,1],[6,1]]	$\begin{array}{c} x & y \\ 1 & 5 \\ 2 & 4 \\ 3 & 3 \\ 4 & 2 \\ 5 & 1 \\ 6 & 1 \end{array}$
1467	Find the Regression Line	table[[x,y],[1,84],[2,76],[3,39],[4,30],[5,26],[6,0]]	$\begin{array}{c} x & y \\ 1 & 84 \\ 2 & 76 \\ 3 & 39 \\ 4 & 30 \\ 5 & 26 \\ 6 & 0 \end{array}$
1468	Find the Regression Line	table[[x,y],[1,98],[2,101],[3,109],[4,117],[5,119],[6,127]]	$\begin{array}{c} x & y \\ 1 & 98 \\ 2 & 101 \\ 3 & 109 \\ 4 & 117 \\ 5 & 119 \\ 6 & 127 \end{array}$
1469	Find the Regression Line	table[[x,x(x+1)*2],[1,6],[2,12],[3,20],[4,30],[5,42]]	$\begin{array}{c} x & x (x + 1) \cdot 2 \\ 1 & 6 \\ 2 & 12 \\ 3 & 20 \\ 4 & 30 \\ 5 & 42 \end{array}$
1470	Find the Regression Line	table[[x,y],[1,-1],[2,1],[3,11],[4,35],[5,79]]	$\begin{array}{c} x & y \\ 1 & - 1 \\ 2 & 1 \\ 3 & 11 \\ 4 & 35 \\ 5 & 79 \end{array}$
1471	Find the Regression Line	table[[x,y],[1,1],[2,-1],[3,-3],[4,-5],[5,-7]]	$\begin{array}{c} x & y \\ 1 & 1 \\ 2 & - 1 \\ 3 & - 3 \\ 4 & - 5 \\ 5 & - 7 \end{array}$
1472	Find the Regression Line	table[[x,y],[1,1],[2,4],[3,10],[4,20],[5,35]]	$\begin{array}{c} x & y \\ 1 & 1 \\ 2 & 4 \\ 3 & 10 \\ 4 & 20 \\ 5 & 35 \end{array}$
1473	Find the Regression Line	table[[x,y],[0,0],[1,1],[2,4],[3,0]]	$\begin{array}{c} x & y \\ 0 & 0 \\ 1 & 1 \\ 2 & 4 \\ 3 & 0 \end{array}$
1474	Find the Regression Line	table[[x,y],[0,0],[1,10],[2,20],[3,30]]	$\begin{array}{c} x & y \\ 0 & 0 \\ 1 & 10 \\ 2 & 20 \\ 3 & 30 \end{array}$
1475	Find the Regression Line	table[[x,y],[0,0],[1,-74],[2,-148],[3,-222]]	$\begin{array}{c} x & y \\ 0 & 0 \\ 1 & - 74 \\ 2 & - 148 \\ 3 & - 222 \end{array}$
1476	Find the Regression Line	table[[x,y],[0,1],[1,-1],[2,-3],[-3,7]]	$\begin{array}{c} x & y \\ 0 & 1 \\ 1 & - 1 \\ 2 & - 3 \\ - 3 & 7 \end{array}$
1477	Find the Linear Correlation Coefficient	table[[x,y],[1,1],[2,2],[3,2],[5,2],[7,2]]	$\begin{array}{c} x & y \\ 1 & 1 \\ 2 & 2 \\ 3 & 2 \\ 5 & 2 \\ 7 & 2 \end{array}$
1478	Find the Linear Correlation Coefficient	table[[x,y],[1,0],[2,2],[3,8]]	$\begin{array}{c} x & y \\ 1 & 0 \\ 2 & 2 \\ 3 & 8 \end{array}$
1479	Find the Linear Correlation Coefficient	table[[x,y],[1,1],[2,3],[3,9]]	$\begin{array}{c} x & y \\ 1 & 1 \\ 2 & 3 \\ 3 & 9 \end{array}$
1480	Find the Linear Correlation Coefficient	table[[x,y],[1,-1],[2,-5],[3,-7]]	$\begin{array}{c} x & y \\ 1 & - 1 \\ 2 & - 5 \\ 3 & - 7 \end{array}$
1481	Find the Linear Correlation Coefficient	table[[x,y],[1,2],[2,2],[3,2]]	$\begin{array}{c} x & y \\ 1 & 2 \\ 2 & 2 \\ 3 & 2 \end{array}$
1482	Find the Linear Correlation Coefficient	table[[x,y],[19,11],[15,16],[14,11],[12,18],[11,20],[9,15]]	$\begin{array}{c} x & y \\ 19 & 11 \\ 15 & 16 \\ 14 & 11 \\ 12 & 18 \\ 11 & 20 \\ 9 & 15 \end{array}$
1483	Find the Linear Correlation Coefficient	table[[x,y],[1920,54],[1930,60],[1940,63],[1950,68],[1960,70],[1970,71],[1980,74],[1990,76]]	$\begin{array}{c} x & y \\ 1920 & 54 \\ 1930 & 60 \\ 1940 & 63 \\ 1950 & 68 \\ 1960 & 70 \\ 1970 & 71 \\ 1980 & 74 \\ 1990 & 76 \end{array}$
1484	Find the Linear Correlation Coefficient	table[[x,y],[1975,14.2],[1980,16.9],[1985,19.6],[1990,21.4],[1995,23.1],[2000,25.6]]	$\begin{array}{c} x & y \\ 1975 & 14.2 \\ 1980 & 16.9 \\ 1985 & 19.6 \\ 1990 & 21.4 \\ 1995 & 23.1 \\ 2000 & 25.6 \end{array}$
1485	Find the Linear Correlation Coefficient	table[[x,y],[1985,2.5],[1995,3.3],[2010,3.9],[2035,3.7]]	$\begin{array}{c} x & y \\ 1985 & 2.5 \\ 1995 & 3.3 \\ 2010 & 3.9 \\ 2035 & 3.7 \end{array}$
1486	Find the Linear Correlation Coefficient	table[[x,y],[1994,108],[1995,122],[1996,137],[1997,153],[1998,168]]	$\begin{array}{c} x & y \\ 1994 & 108 \\ 1995 & 122 \\ 1996 & 137 \\ 1997 & 153 \\ 1998 & 168 \end{array}$
1487	Find the Linear Correlation Coefficient	table[[x,y],[1995,406],[1996,436],[1997,499],[1998,558],[1999,588],[2000,603],[2001,666],[2002,643],[2003,721],[2004,771],[2005,769],[2006,862]]	$\begin{array}{c} x & y \\ 1995 & 406 \\ 1996 & 436 \\ 1997 & 499 \\ 1998 & 558 \\ 1999 & 588 \\ 2000 & 603 \\ 2001 & 666 \\ 2002 & 643 \\ 2003 & 721 \\ 2004 & 771 \\ 2005 & 769 \\ 2006 & 862 \end{array}$
1488	Find the Linear Correlation Coefficient	table[[x,y],[1995,135],[1999,156],[2003,154]]	$\begin{array}{c} x & y \\ 1995 & 135 \\ 1999 & 156 \\ 2003 & 154 \end{array}$
1489	Find the Linear Correlation Coefficient	table[[x,y],[1997,9.5],[1998,9.9],[1999,10.3],[2000,10.7],[2001,10.9],[2002,11.7],[2003,11.8],[2004,11.9],[2005,12.0],[2006,12.1]]	$\begin{array}{c} x & y \\ 1997 & 9.5 \\ 1998 & 9.9 \\ 1999 & 10.3 \\ 2000 & 10.7 \\ 2001 & 10.9 \\ 2002 & 11.7 \\ 2003 & 11.8 \\ 2004 & 11.9 \\ 2005 & 12 \\ 2006 & 12.1 \end{array}$
1490	Find the Linear Correlation Coefficient	table[[x,y],[1997,625],[1998,690],[1999,740],[2000,785],[2001,815]]	$\begin{array}{c} x & y \\ 1997 & 625 \\ 1998 & 690 \\ 1999 & 740 \\ 2000 & 785 \\ 2001 & 815 \end{array}$
1491	Find the Linear Correlation Coefficient	table[[x,y],[1997,9846],[1998,10466],[1999,10928],[2000,11456],[2001,12069]]	$\begin{array}{c} x & y \\ 1997 & 9846 \\ 1998 & 10466 \\ 1999 & 10928 \\ 2000 & 11456 \\ 2001 & 12069 \end{array}$
1492	Find the Linear Correlation Coefficient	table[[x,-x^2+6x+5],[2,13],[0,5],[1,10],[-1,-2],[-2,-11]]	$\begin{array}{c} x & - x^{2} + 6 x + 5 \\ 2 & 13 \\ 0 & 5 \\ 1 & 10 \\ - 1 & - 2 \\ - 2 & - 11 \end{array}$
1493	Find the Linear Correlation Coefficient	table[[x,y],[-2,5],[0,0],[1,2],[3,10]]	$\begin{array}{c} x & y \\ - 2 & 5 \\ 0 & 0 \\ 1 & 2 \\ 3 & 10 \end{array}$
1494	Find the Linear Correlation Coefficient	table[[x,y],[-2,0],[0,4],[2,0]]	$\begin{array}{c} x & y \\ - 2 & 0 \\ 0 & 4 \\ 2 & 0 \end{array}$
1495	Find the Linear Correlation Coefficient	table[[x,y],[-2,8],[0,7],[4,5],[10,2],[18,-2]]	$\begin{array}{c} x & y \\ - 2 & 8 \\ 0 & 7 \\ 4 & 5 \\ 10 & 2 \\ 18 & - 2 \end{array}$
1496	Find the Linear Correlation Coefficient	table[[x,y],[-2,12],[-1,4],[0,0],[1,0],[2,4],[3,12],[4,24],[5,40],[6,60],[7,84],[8,112],[9,144],[10,180]]	$\begin{array}{c} x & y \\ - 2 & 12 \\ - 1 & 4 \\ 0 & 0 \\ 1 & 0 \\ 2 & 4 \\ 3 & 12 \\ 4 & 24 \\ 5 & 40 \\ 6 & 60 \\ 7 & 84 \\ 8 & 112 \\ 9 & 144 \\ 10 & 180 \end{array}$
1497	Find the Linear Correlation Coefficient	table[[x,y],[-2,4],[-1,2],[0,1],[1,-2],[2,-1],[3,-2]]	$\begin{array}{c} x & y \\ - 2 & 4 \\ - 1 & 2 \\ 0 & 1 \\ 1 & - 2 \\ 2 & - 1 \\ 3 & - 2 \end{array}$
1498	Find the Linear Correlation Coefficient	table[[x,f(x)],[-2,0.15],[-1,0.3],[0,0.6],[1,1.2],[2,2.4]]	$\begin{array}{c} x & f (x) \\ - 2 & 0.15 \\ - 1 & 0.3 \\ 0 & 0.6 \\ 1 & 1.2 \\ 2 & 2.4 \end{array}$
1499	Find the Linear Correlation Coefficient	table[[x,y],[-2,0],[-1,-3],[0,-4],[1,-3],[2,0]]	$\begin{array}{c} x & y \\ - 2 & 0 \\ - 1 & - 3 \\ 0 & - 4 \\ 1 & - 3 \\ 2 & 0 \end{array}$
1500	Find the Linear Correlation Coefficient	table[[x,y],[-2,0.1],[-1,1],[0,10],[1,100],[2,1000]]	$\begin{array}{c} x & y \\ - 2 & 0.1 \\ - 1 & 1 \\ 0 & 10 \\ 1 & 100 \\ 2 & 1000 \end{array}$