Saturday
April 19, 2014

# Homework Help: Math: Arithmetic

Recent Homework Questions About Arithmetic

CHRIST MATH
I will assume that AP stands for arithmetic progression so you are given: a + (a+d) + (a+2d) + (a+3d) = 20 4a + 6d = 20 2a + 3d = 10 product of 1st and 4th = a(a+3d) product of 2nd to 3rd = (a+d)(a+2d) then: a(a+3d)/( (a+d)(a+2d) ) = 2/3 (a^2 + 3ad)/(a^2 + 3ad + 2d^2) = 2/3 3a...
Tuesday, March 12, 2013 at 9:50am

Math
A triangle has a total of 180 degrees. Since the right angle = 90 degrees. There is a total of 90 degrees left for the other two angles. Their sum divided by 2 gives the arithmetic mean of 45 degrees
Monday, March 11, 2013 at 3:07pm

Math
In right triangle ABC what is the arithmetic mean (average), in degrees, of the measures of the two smallest angles? Explain how the answer is 45 degrees.
Monday, March 11, 2013 at 3:05pm

Math
let the radius be r let the height be h Volume = πr^2h πr^2h = 400 h = 400/(πr^2) cost = different prices x surface areas = .03(2πrh) + 2(.06) πr^2 = .03[2πr(400/πr^2) + 4πr^2] = .03[ 800/r + 4πr^2] d(cost)/dr = .03[ -800/r^2 + 8&#...
Sunday, March 10, 2013 at 5:25pm

Math
ah, here is the Gauss history I was looking for: When the great Mathematician Gauss (Germany) was about 12 years old, his teacher asked the whole class to add up all the integers starting from 1 up to 100. All other children started doing long and boring addition as you did ...
Saturday, March 9, 2013 at 1:29pm

math
Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called reachable, if it can ...
Friday, March 8, 2013 at 11:22am

Algebra
Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called reachable, if it can ...
Thursday, March 7, 2013 at 10:46pm

pre-calculus
find the common difference in an arithmetic sequence in which a(sub 15)-a(sub7)=-1. what should i start with ??
Thursday, March 7, 2013 at 8:46pm

math
The sum of the first 10 terms of an arithmetic series is 145 and the sum of its fourth and ninth term is five times the third the..determine the first term and constant difference
Thursday, March 7, 2013 at 2:43pm

Geometry
From the secant-secant rule, FB*21 = 6*39, so FB=78/7 AD+DE+EB = 3+39+6 = 48 CG+21+FB = 48, so CG = 111/7 CH*HI = CG*CF = 111/7 * 258/7 = 28638/49 AI*HI = 3*39 = 117 AI+IH+HC = 48 117/HI + HI + 28638/49HI = 48 now "just" solve for HI The fractions look nasty, so you ...
Thursday, March 7, 2013 at 10:51am

math
so you want 25+26+.. for 30 terms an arithmetic series where a=25 , d=1 ,and n=30 sum(3) = (30/2)(50 + 29(1)) = 1185
Thursday, March 7, 2013 at 10:27am

arithmetic
the sum of two distinct numbers is 20,and their G.M is 6. find the numbers
Wednesday, March 6, 2013 at 9:18pm

arithmetic
oops. forgot to add in the 32 for the last line
Wednesday, March 6, 2013 at 3:31pm

arithmetic
3 4,5 12,15 13,14,16,17 39,42,48,51 40,41,43,44,49,50,52,53 120,123,129,132,147,150,156,159 121,122,124,125,130,131,133,134,148,149,​151,152,157,158,160,161 363,366,372,375,390,393,399,402,444,447,​453,456,471,474,480,483 32 numbers, all above 363, so the next step...
Wednesday, March 6, 2013 at 3:12pm

arithmetic
Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called reachable, if it can ...
Wednesday, March 6, 2013 at 11:16am

arithmetic pizzle
12×3-4
Wednesday, March 6, 2013 at 10:23am

algebra
You have an arithmetic series where a = 2, d = 3, n = 10 sum(10) = (10/2)(4 + 9(3)) = 5(31) = 155 looks like you are right.
Tuesday, March 5, 2013 at 10:38pm

algebra
Find the 11th term of the arithmetic sequence 7, 4.4, 1.8, -0.8, … A. -33 B. -19 C. 33 D. 19 B
Tuesday, March 5, 2013 at 9:28pm

poetry
Arithmetic by Carl Sandburg Arithmetic is where numbers fly like pigeons in and out of your head. Arithmetic tell you how many you lose or win if you know how many you had before you lost or won. Arithmetic is seven eleven all good children go to heaven -- or five six bundle ...
Monday, March 4, 2013 at 8:34pm

poetry
It's definitely light hearted. http://www.poemhunter.com/poem/arithmeti​c/
Monday, March 4, 2013 at 8:32pm

poetry
What is the authors tone in the poem arithmetic?
Monday, March 4, 2013 at 8:25pm

arithmetic
find the APR to the nearest half percent, for the following data. purchase price \$3500, down payment \$500, add-on interest rate 7%, # of payments 18
Monday, March 4, 2013 at 6:35pm

Algebra
Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called reachable, if it can ...
Monday, March 4, 2013 at 4:53pm

Algebra
Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called reachable, if it can ...
Monday, March 4, 2013 at 12:26am

geometry
The slope of 2x-y=5 is 2 So the slope of a perpendicular line is -1/2 kx^2 + 10xy + 8y^2 = 0 is supposed to be the intersection of 2 straight lines, so let's solve it for y y = (-10x ± √(100x^2 - 32kx^2) )/16 = (-10x ± x√100-68k)/16 = x(-10 &...
Saturday, March 2, 2013 at 8:09am

math
Do you know how to find the common denominator? If not study this site. https://www.khanacademy.org/math/arithme​tic/fractions/Equivalent_fractions/v/fin​ding-common-denominators
Thursday, February 28, 2013 at 5:12pm

MATH
An arithmetic student needs at least a 70% average to receive credit for the course. If she scored 86%, 77%, and 64% on the first three exams, what is the lowest score she can get on the fourth exam to receive credit for the course?
Sunday, February 24, 2013 at 9:23pm

maths-ARITHMETIC PROGRESSIONS
A person buys a refrigerator for rupees 12000. He pays rupees 6000 in cash and agrees to pay the balance in 12 annual instalments of rupees 500 each. If the rate of interest is 12% and he pays it with instalments on the unpaid amount, how much did the refrigerator cost him
Sunday, February 24, 2013 at 2:29am

math
let the total be x (x = men+women+children) 1/4 of x are men, so (3/4)x is made up women and children but (2/5)((3/4)x = 132 (3/10)x = 132 3x = 1320 x = 440 so the total was 440, of which 110 were men, and 132 were women, leaving 198 children check my arithmetic and my thinking.
Thursday, February 21, 2013 at 10:34pm

precalc
Determine the 8th term of the following arithmetic sequence. -7, 2, 11, 20...
Wednesday, February 20, 2013 at 11:33am

math
Find the arithmetic sequence if the fourth term is -6 and the eleventh term is -34
Tuesday, February 19, 2013 at 3:15pm

Arithmetic
what does adding 1,2,5 have to do with the original numbers? The sequence could be 1,2,3 12,2,-8 -20,2,24 or lots of others.
Tuesday, February 19, 2013 at 11:59am

Math
1st term = x 2nd term = x-.5 3rd term = x - 2(.5) .... 10th term = x - 9(.5) = x - .45 ... 14th term = x - 13(.5) = x - 6.5 t th term = x - (t-1)(.5) I assume you are studying sequences and series. Do you recognize the arithmetic sequence pattern ?
Tuesday, February 19, 2013 at 9:49am

Arithmetic
three numbers in an arithmetic sequence sum up to six. if you add 1 to the first number, 2 to the second number, and 5 to the third number, what are the orginal three numbers?
Tuesday, February 19, 2013 at 5:49am

ap calc
I will read that as v(t) = (2π - 5)t - sin(πt) = 2πt - 5t - sin(πt) a(t) = 2π - 5 - πcos(πt) for a min of a , a ' (t) = 0 π^2 sin(πt) = 0 sin(πt) = 0 πt = 0 or πt = π or πt = 2π t = 0 , t = 1 , t = ...
Monday, February 18, 2013 at 12:07am

invest
You budget \$100 for parking each month. Each day you use the downtown parking lot, it costs you \$5. Write a rule to represent the amountof money left in your monthly budget as an arithmetic sequence. How much money is left in your budget after you have used the downtown ...
Sunday, February 17, 2013 at 10:05pm

Algebra
invest \$ 3000 and save \$100 each month. Write a rule to represent the total amount of money invest into your account as arithmetic sequence. How much money will you have invested after 12 month?
Sunday, February 17, 2013 at 9:31pm

math
let A = logax ---> x = a^A let B = logay ---> y = a^B let C = logaz ---> z = a^C but we are told that logax , loga y , and loga z form an arithmetic sequence so A , B, and C form an arithmetic sequence and B-A = C-B do x, y, and z form a geometric sequence ? if so , ...
Saturday, February 16, 2013 at 8:03am

math
what formula use in solving or finding for the 9th term of a number in arithmetic series and sequences?
Saturday, February 16, 2013 at 6:48am

math
what method i need to use in solving arithmetic and geometric sequences and series?
Saturday, February 16, 2013 at 6:44am

arithmetic
Right.
Friday, February 15, 2013 at 2:18pm

arithmetic
the \$225 per decameter. if you multiply the 24.75 timesten you get Way high than \$225
Friday, February 15, 2013 at 2:00pm

arithmetic
The city counsel is trying to buy fencing the size of 740 meters. One fencing company is offering \$24.75 per meter another is offering \$225 per decameter. Which is the better buy???
Friday, February 15, 2013 at 1:56pm

algebra 1
h(3) = -9.8(9) + 30(3) + 1.5 = 3.3 I don't have the foggiest clue how you came up with -195.8 I tried different permutations of the arithmetic, but no luck.
Friday, February 15, 2013 at 12:21pm

math
let's look at the first few terms 2(1!) = 2 2(2!) = 4 2(3!) = 12 2(4!) = 48 2(5!) = 240 2(6!) = 1440 2(7!) = 10080 2(8!) = 80640 2(9!) = 725760 2(10!) = 7257600 2(11!) = .....3600 , since we are only concerned about the last 3 digits 2(12!) = ..... 3200 2(13!) = ... 1600 2...
Wednesday, February 13, 2013 at 11:27am

algebra
Value = 1250(.9)^n does that look arithmetic or geometric to you ?
Tuesday, February 12, 2013 at 5:52pm

algebra
Robin bought a computer for \$1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. a) Is the sequence formed by the value at the beginning of each year arithmetic, geometric, or neither? Explain. b) Write an explicit formula to represent the ...
Tuesday, February 12, 2013 at 5:34pm

maths
Consumer arithmetic teaches students how to handle money.
Tuesday, February 12, 2013 at 1:27pm

maths
what is a simple definition of consumer arithmetic for a 7th grader
Tuesday, February 12, 2013 at 1:20pm

algebra
your first sequence looks geometric with a = 81, r = 1/3 term(15) = ar^14 = 81(1/4782969) = 1/59049 2. let the missing term be x then x/39 = 975/x x^2 = 38025 x = ± √38025 = ± 195 could be 195 or -195 3. looks arithmetic with a = -5 , d = 5 term(n) = 65 -5...
Tuesday, February 12, 2013 at 12:29pm

Math
A rather lengthy question, let's find the intersection points. 1st and 2nd line: 3x+2y=1 3x+2(x-2) = 1 5x = 5 x=1 , then y = 1-2 = -1 ----> point A(1,-1) 2nd and 3rd: 4x - 9y = -22 4x - 9(x-2) = -22 -5x = -40 x = 8 , then y = 2-8 = -6 ----> point B(5,-6) 1st and 3rd...
Tuesday, February 12, 2013 at 12:14pm

algebra
I have 3 questions I need help with. 1) what is the 15th term of the sequence 81,27,9,... 2) what is a possible value for the missing term of the geometric sequence 39,_,975,_ 3) what is the sum of the finite arithmetic series (-5)+0+5+10+..+65
Tuesday, February 12, 2013 at 11:29am

Math (Pre-Cal)
There is exactly one triangle the length of whose sides are integers in arithmetic progression and whose area is 156 square units. Find the perimeter of this triangle.
Monday, February 11, 2013 at 7:57pm

Calculus
P ' (t) = (80t)(.86^t)(ln .86) + 80(.86^t) , using the product rule and knowing that d(.86^t)/dt = ln(.86)(.86^t) so if t = 5 P ' (5) = (400)(.86^5)(ln.86) + 80(.86^5) = appr 9.25 people/day check my arithmetic and calculator work
Monday, February 11, 2013 at 11:43am

arithmetic
let the number in the group be x 24x + 6 = 25x - 3 -x = -9 x = 9 cost = 24(9) + 6 = 222 , just like Ms Sue said.
Monday, February 11, 2013 at 11:34am

arithmetic
\$222
Monday, February 11, 2013 at 11:31am

arithmetic
A group of friends are planning a road trip. If they all contributed \$24, then they would be \$6 short of the total. If they all contributed \$25, then they would have \$3 more than needed. What is the total cost of the trip?
Monday, February 11, 2013 at 11:08am

math
you want the sum of the 1st 12 terms of the sequence 1,3,5,7,... Now just from experience, we know that the sum of the 1st n odd numbers is n^2, so there will be 144 people present. Or, solving algebraically, we have an arithmetic sequence with a=1, d=2 S12 = 12/2 (2*1 + 11*2...
Monday, February 11, 2013 at 10:18am

maths
smallest sum is 10, largest sum of 600 since all possible sums between are possible, all we have to do is find which term number 600 is of the arithmetic sequence with term1 = 10 , d = 1, term(n) = 600 a + (n-1)d = term(n) 10 + n-1 = 600 n-1 = 590 n = 591 There are 591 ...
Sunday, February 10, 2013 at 8:20am

Pre-calculus
a) A particular ball always rebounds 3/5 the distance it falls. If the ball is dropped from a height of 5 meters, how far will it travel before coming to a stop? Explain the reasoning. b) Prove that if a1, a2, a3, ... is a geometric sequence,then ln(a1), ln(a2), ln(a3)... is ...
Saturday, February 9, 2013 at 4:50pm

Math
The sixth term of an arithmetic progression is 265 and the sum of the first 5 terms is 1445. Find the minimum value of n so that the sum of the first n terms is negative.
Saturday, February 9, 2013 at 12:28pm

arithmetic
a(n) = a₁ +(n-1)d a(6) = a₁ +(6-1)d=12 a(8) = a₁ +(8-1)d=22 a₁ +5d=12 a₁ +7d=22 a₁ = -13 d=5 a(2) = a₁ +(2-1)d= =-13 +5= =-8
Saturday, February 9, 2013 at 10:49am

arithmetic
determine the secon termof an A.P whose sixth term is 12 and eighth term is 22?
Saturday, February 9, 2013 at 9:48am

math
rats! still bad arithmetic 7+17=24, not 25 you fix it
Friday, February 8, 2013 at 10:39am

Mathematics
The 3rd and 8th term of an arithmetic progression A.P are -9 and 26.what their common difference nd first term?
Thursday, February 7, 2013 at 11:51pm

arithmetic (incomplete)
What process do you go through to get the answer, 23? Addition? Subtraction? Division?
Thursday, February 7, 2013 at 5:35pm

arithmetic
What number is 7 more than another number their answer is 23 Find the numbers.
Wednesday, February 6, 2013 at 8:09pm

pre-calculus
e^x (x^3 - 4) = 0 e^x = 0 x = -oo x^3 = 4 x = 4^(.333....) Not sure if you do complex arithmetic 360/3 = 120 if so you also have two complex roots one at +120 degrees and one at - 120 x = r (cos 120 + i sin 120) x = 4^(1/3) ( -.5 + i sqrt3/2) x = 4^.3333...(.5)(-1+isqrt 3) and...
Tuesday, February 5, 2013 at 9:01pm

math
the average (arithmetic mean) of a and b is 6 and the average of a, b, c is 11. What is the value of c?
Tuesday, February 5, 2013 at 7:53pm

geometry
http://www.mathwarehouse.com/arithmetic/​numbers/list-of-perfect-squares.php
Monday, February 4, 2013 at 2:27pm

Maths
we can get CD by getting the CR using geometric sequence since the common ratio (CR) & common diff (CD)are the same... so, A sub 6=A sub 1 r^(n-1) 96=3r^5 r^5=32 r=2-------> CD is also 2 THEN, the first 5 terms of an arithmetic sequence using CD of 2 are: 3, 5, 7, 9, 11
Sunday, February 3, 2013 at 4:43pm

Maths
1..The first 2 terms of a geometric progression are the same as the first two terms of an arithmetic progression.The first term is 12 and is greater than the second term.The sum of the first 3 terms od the arithmetic progression is 4/3 less than the sum of the first 3 terms of...
Sunday, February 3, 2013 at 4:35pm

Maths
Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of the geometric sequence is the same as the common difference of the arithmetic sequence.If the 6-th term of the geometric sequence is 96.Find the ...
Sunday, February 3, 2013 at 4:27pm

geometry
let the point be P(x,y) √((x-3)^2+y^2) = 1.5(x-4/3) square both sides (x-3)^2 + y^2 = (9/4)(x^2 - 8x/3 + 16/9) x^2 - 6x + 9 + y^2 = 9x^2/4 - 6x + 4 4x^2 - 24x + 36 + 4y^2 = 9x^2 - 24x + 16 5x^2 - 4y^2 = 20 or x^2 /4 - y^2 /5 = 1 , which is a hyperbola check my arithmetic
Sunday, February 3, 2013 at 4:01pm

Maths
An arithmetic and a geometric sequence have the same first terms.(2)....and the same second term say X..The sum of the first 3 terms of the arithmetic sequence equals to the third term of the geometric sequence.Calculate the first 3 terms of each sequences
Sunday, February 3, 2013 at 12:08pm

maths
A(8,-19,10) is a point on the first line and B(15,29,5) is a point on the second line vector AB = (7,48,-5) the second line has direction v = (3,8,-5) so the projection of vectorAB on u = AB·v/|v| = (21 + 384 + 25)/√(9 + 64 + 25) = 430/√98 = 430/(4√2...
Sunday, February 3, 2013 at 11:59am

PLEASE HELP TANGENTS AND CIRCLES PROBLEM GEOMETRY
circle A at bottom circle B at upper right circle C at upper left side of triangle at upper right = x so (1/2) of the bottom is x/2, draw vertical altitude through top of triangle and center of circle A NOW draw line through centers of circles A and B extending beyond at both ...
Saturday, February 2, 2013 at 4:04pm

calculus 2
by definition sinh(x) = (e^x - e^-x)/2 so the area = ∫sinh(x) dx from 0 to 1 = ∫(e^x - e^-x)/2 dx from 0 to 1 = [ e^x + e^-x)/2] from 0 to 1 = (e^1 + e^-1)/2 - (e^0 + e^0)/2 = (e + 1/e)/2 - (1+1)/2 = e/2 + 1/(2e) - 1 = (e^2 + 1 - 2e)/(2e) = (e - 1)^2 / (2e) you ...
Friday, February 1, 2013 at 10:35pm

To Jessica
I have now corrected two of your replies in which you gave incorrect solutions. Unless you know what you are doing, please don't answer any questions dealing with topics not familiar to you . I know everybody makes mistakes, I make my share, but those are usually typos or ...
Thursday, January 31, 2013 at 9:56pm

calculus
At first it might look difficult to find the intersection by setting sin(πx/2) = x^2 - 2x , but a quick sketch makes it quite easy. the period of the sin curve is 2π/(π/2) = 4 making x-intercepts of 0, 2, and 4 the parabola y - x^2 - 2x has x-intercepts of 0 and...
Wednesday, January 30, 2013 at 8:20pm

Calculus
the intersect at (0,0) and (2,4) since we are rotating around the y axis we need the radius squared, that is, we need the x^2 of each equation from the 1st : y = 2x --> x = y/2 , then x^2 = y^2/4 from the 2nd: y = x^2 ---> then x^2 = y , the outer so volume = π&#...
Wednesday, January 30, 2013 at 8:11pm

math
be found arithmetic series 3a2-a6=-a2 a3+a4=19
Tuesday, January 29, 2013 at 6:27pm

math
3___,___,20 (arithmetic)
Tuesday, January 29, 2013 at 5:39pm

arithmetic
AM=(3+5+7+9+11)/5 AM=7 Just find the average of the terms.
Tuesday, January 29, 2013 at 6:43am

arithmetic progression
a=7,a+9d=2(a+d),9d+a=2a+2d,7d=9,7d= 7,d=1,19th term=a+18d=7+18(1)=25
Tuesday, January 29, 2013 at 4:24am

6th grade math
These sites should help. http://www.mathsisfun.com/numbers/ratio.​html http://www.mathsisfun.com/algebra/propor​tions.html https://www.khanacademy.org/math/arithme​tic/rates-and-ratios/ratios_and_proporti​ons/v/ratio-and-proportion http://www....
Monday, January 28, 2013 at 10:16pm

Math
The following arithmetic questions are correct : 1 3 4 5 8 11 12 13 15 18 19 20 #10 -- I would say all of the above #2 -- I live in Canada, so I should not comment on US practice #6 #7 , no idea since we have universal health care where 100% of hospital etc is covered . #9 - ...
Monday, January 28, 2013 at 1:52pm

Math
The following arithmetic questions are correct : 1 3 4 5 8 11 12 13 15 18 19 20 #10 -- I would say all of the above #2 -- I live in Canada, so I should not comment on US practice #6 #7 , no idea since we have universal health care where 100% of hospital etc is covered . #9 - ...
Monday, January 28, 2013 at 1:51pm

statistics
I. 71. The mode, by definition is the answer that appears most frequently. II. The midrange is 64, which is by definition the arithmetic mean of the largest and the smallest values in a sample or other group. The range is 55. Let H = highest score, and L = lowest score. Then...
Sunday, January 27, 2013 at 8:22pm

Binomial Math
prob of purchase = .4 prob of no purchase = .6 prob of at least 5 from 10 will make purchase = prob(5will buy) + prob(6 will buy) + ..+ prob(10 will buy) .... lots of arithmetic, I will do the prob 6 will buy = C(10,6) (.4)^6 (.6)^4 = .. What might be a shorter way is to ...
Sunday, January 27, 2013 at 4:15pm

Math
The fifth term of an arithmetic progression is three times the second term,and the third term is 10.a)What is the first term,b)the common difference and c)the 15th term?
Sunday, January 27, 2013 at 1:17pm

Calculus
I will do the harder of the two 2. If you make a sketch you will see that the curves intersect in your domain 0 ≤ x ≤ π/2 sin2x = sinx 2sinxcosx - sinx = 0 sinx(2cosx - 1) = 0 sinx = 0 or cosx = 1/2 x = 0 , your left domain, or x = π/3 so we have to do ...
Friday, January 25, 2013 at 11:42am

Analytic Geometry
let the centre be C(a,b) then the distance from C to x-3y+8 = 0 is |a - 3b+8|/√10 then the distance from C to 3x-y=0 is |3a - b|/√10 so 3a-b = a-3b + 8 or 3a-b = -a + 3b - 8 2a + 2b = 8 or 4a - 4b = -8 a + b = 4 or or a - b = -2 let's use a-b=-2 or b = a+2 , ...
Friday, January 25, 2013 at 10:37am

Algebra
garden: length = 10 ft width = 9 ft garden including walkway: length = 10+2x width = 9+2x a) perimeter = 2(10+2x) + 2(9+2x) = 20 + 4x + 18 + 4x = 8x + 38 b) area of whole thing = (10+2x)(9+2x) = 90 + 38x + 4x^2 c) when x=4 area according to formula = 90 + 38(4) + 4(4^2) = 306 ...
Friday, January 25, 2013 at 12:19am

Math PLEASE
It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up in four rows ...
Thursday, January 24, 2013 at 10:39am

Math PLEASE
It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up in four rows ...
Thursday, January 24, 2013 at 10:27am

pre algebra
5 1/8 = 4 9/8 1 7/8 = 1 7/8 subtract to get 3 2/8 = 3 1/4 Not sure I'd call this pre-algebra; just 4th grade math to me. Still, I guess all arithmetic is pre-algebra.
Tuesday, January 22, 2013 at 3:53pm

Math
Thank you so much . 1. In the Arithmetic sequence 5,8,11,14.... what is n if an is 32? 1. In the Arithmetic sequence 5,8,11,14.... what is n if n is 32?
Tuesday, January 22, 2013 at 6:52am

College Algebra
"The load L a horizontal beam can safely support varies jointly as the width w and the square of the depth d and inversely as the length l" ---- >Load = k(wd^2/L) given : L = 12, w = 6inches or 1/2 , d = 8 inches or 2/3, load = 600 600 = k(1/2)(4/9) /12 (1/54)k = ...
Monday, January 21, 2013 at 8:47pm

Math
Find the no. of terms 1. 3,5,7...33 2.-5,-1,3,...75 Solve each problem. 1. In the Arithmetic sequence 5,8,11,14.... what is n if a sub n is 32? 2.Find the sum of the first 20 terms of the arithmetic sequence -15,-7,31,43...
Monday, January 21, 2013 at 5:16am

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