Monday
May 30, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
A paper cone has a base diameter of 8cm and a height of 3cm(a) use Pythagoras theorem to calculate it's slant height (b)if the cone is cut and opened out into the sector of a circle what is the angel of the sector
Monday, May 30, 2016 by Joy

math
(25)^-1/3 × 3√16
Monday, May 30, 2016 by Anonymous

math plz help ;-;
1. Solve the system by any method: 2x-5y=-1 2x-y=1 How many solutions does the system of equations below have? Explain your answer. y=3/5x-1 y=6/10x+3 plz help me ;-; i dont understand how to do this, sorry ;-;
Monday, May 30, 2016 by leo

Math
At a point p 20m away from the foot of the tower, the angle of elevation of the point p is 45.calculate the height of the tower.
Monday, May 30, 2016 by Israel David enesi

math
Write this in scientific notation. (1.4*10^1)(8*10^4) a)9.4*10^4***** b)9.4*10^5 c)1.12*10^5 d)1.12*10^6 Please cheek my answer i am not sure if I am right or wrong.
Sunday, May 29, 2016 by Jess

Math
I have a square house that has 1130 square feet, what is the dimension?
Sunday, May 29, 2016 by Lynn

Math - integrals
Use the sub x-1 = sqrt(5)tan(u) to evaluate 5∫3 1/(x^2-2x+6)^3/2 I dont know how to use the substitution
Sunday, May 29, 2016 by Rob

Math.........
Prove the following conjecture: Between any two unique Real Numbers, there exists another Real Number.
Sunday, May 29, 2016 by Heaven

math
Given that triangle ABC is congruent to triangle RST, AB=x, BC=x+2, AC=x+4 and RS=2x-7, find the perimeter for triangle ABC.
Sunday, May 29, 2016 by kenzi

math
a snail moves along the edge of a triangular lawn ABC from A back to A . The distance AB was done 15mins, BC in 25 mins and it took the snail 40 mins to do CA. What was the average speed of the snail in centimeters per second?
Sunday, May 29, 2016 by ralph

math
use dominance to slove the game with following pay-off matrices: ((2 3 1/2) (3/2 2 0) (1/2 1 1)). ANS: A=(1/4,0,3/4); B=(1/4,0,3/4); v=7/8. i got answer, but how to do this? i need solution
Sunday, May 29, 2016 by priya

math
slove the game with following pay-off 3*3 matrices:((2,3,1/2)(3/2,2,0)(1/2,1,1))
Sunday, May 29, 2016 by priya

Math (pre-celc 12)
Find x: 2(5)^x=3^(x+1) I'm not sure what to do with the 2. I think I need to write the equation as log5^2x=log3^(x+1), but I don't know. Thanks
Sunday, May 29, 2016 by Jana

Math(Please Help!)
An undisclosed number of friends gather for dinner. Each person shakes each other persons hand exactly once. How many handshakes occur? Piti reasons that 2 people will have one handshake. For each person added, everyone in the earlier group will need to shake the new persons ...
Sunday, May 29, 2016 by Heaven

Basic math for science
A sportswear manufacture determines that the marginal cost of producing x worm-up suits is given in dollars by 20-0.015x.if the cost of producing one suits is $25,find the cost function and the cost of producing 50 suits and 100 suits
Sunday, May 29, 2016 by Rose

Math
Use the clues To find the Mistery Number. The number os less than 800 and greater Than 780. It has 8 more tens than ones
Sunday, May 29, 2016 by Mirella

Math word
General tickets sell for $6 and adult $9. Sell at most 300 general and at most 500 adult. Costs $1 to advertise for adult and $.50 to advertise student. Have at most $400 for advertising. What is most profit that can be made?
Sunday, May 29, 2016 by Math reread please

Math
How much should a girl go to 4th weigh?
Sunday, May 29, 2016 by Tyra

Math word
General tickets sell for $6 and adult $9. Sell at most 300 general and at most 500 adult. Costs $1 to advertise for adult and $.50 to advertise student. Have at most $400 for advertising. What is most profit that can be made?
Sunday, May 29, 2016 by Math reread please

Math- Prob Stat
The probability that a student in this school has a job is 65%. What is the probability that: A. You ask at least 8 people before you find someone with a job? B. You ask at most 4 people before you find someone with a job? C. Between 15 and 29 people in a group of 50 will have...
Sunday, May 29, 2016 by Kate

Math
There are a total of 103 foreign language students in a high school where they offer Spanish, French, and German. There are 29 students who take at least 2 languages at once. If there are 40 Spanish students, 42 French students, and 46 German students, how many students take ...
Sunday, May 29, 2016 by Jun

Math
When two-fifths of a number is increased by 15 the result is 27. What is the number?
Sunday, May 29, 2016 by Jill

Math
The sum of 3 consecutive odd natural numbers is 69. Find the prime number out of these numbers.
Sunday, May 29, 2016 by Srishti

Math
A man 1.5m tall is 23.5 meters away from a tower of height 25m.from his eyes,find the angle of elevation of the top of the tower
Saturday, May 28, 2016 by Raghag pagare

math
you deposited taka 100000a bank 10years ago what is the present value investment at 10% compoundend monthly
Saturday, May 28, 2016 by md asad

math
Find the imaginary part of (cos(12) + i sin(12) + cos(48) + i sin(48))^6.
Saturday, May 28, 2016 by Katie

Math- Prob Stat
How do you determine if a raffle or casino game is fair?
Saturday, May 28, 2016 by Kate

math
Find mean, variance from the understated data, age 30-38,39-47,48-56,57-65,66-74,75-83,84-9​2,no of student :10, 12, 24,30,14,6,4
Saturday, May 28, 2016 by Ejelonu Amarachi Cynthia

business math
A truck costs $35,000 with a residual value of $2,000. Its service life is five years. Using the declining-balance method at twice the straight-line rate, the book value at the end of 2 years is?
Saturday, May 28, 2016 by lawand

Math
Evaluate (6.3 × 10^6) ÷ (9 × 10^2)
Saturday, May 28, 2016 by Munashe

Math
How do I use the distributive property to rewrite the math problem 5(4 - y?
Saturday, May 28, 2016 by Taylor

Math
average score of first three test is 90 and average score of two test is 89 what is average score of all five tests
Saturday, May 28, 2016 by Muhammad Aleem

math
the difference between the sum of the two numbers and the difference of the two numbers is 6.Find the larger of the two numbers if their product is 15
Saturday, May 28, 2016 by Sifat

Math
Find the ratio of the volume of two cubes whose sides are 2.6 cm and 3.4cm
Saturday, May 28, 2016 by Adi

math
Four word starting letterand second lettercolumnare endingletter
Saturday, May 28, 2016 by bo

math
A fraction becomes 1/2 if 5 is subtracted from its numerator and 3 is subtracted from its denominator. However,if we divide the numerator by 2 and add 7 to the denominator,the fraction becomes 1/4. Find the fraction.
Saturday, May 28, 2016 by Alllen Justy

math
A store owner complains that, on the average, 3 bottles per case of a certain brand of softdrink are underfilled. Assuming this is correct, find the probability that a randomly chosen case of this drink will contain at least 4 underfilled bottles.
Friday, May 27, 2016 by Help Me :'(

Math Help Please? (check my work?)
1. Find the next three terms in the sequence. 3, 12, 21, 30, . . . (1 point) 40, 50, 60 *** 38, 46, 54 39, 48, 57 36, 32, 39 2. Identify the sequence as arithmetic, geometric, or neither. 1.6, 0.8, 0.4, 0.2, . . . (1 point) arithmetic geometric *** neither
Friday, May 27, 2016 by Annaleigh

Math pronto please help mrs sue
Simplify the expression (3k + 2)(k - 3) A. 3k^2 - 7k - 5 B. 3k^2 - 7k - 6 C 3k^2 - 4K - 6 D 3k^2 - 4K - 5 My answer is either C or D
Friday, May 27, 2016 by Kolohe

math
If a man saves $6000 each year for 7 years and reinvests his interest at a 5 percent interest rate annually, how much will he have a that the end of year 7?
Friday, May 27, 2016 by dennis

Math help
Simplify the expression (3k + 2)(k - 3) A. 3k^2 - 7k - 5 B. 3k^2 - 7k - 6 C 3k^2 - 4K - 6 D 3k^2 - 4K - 5 My answer is either C or D
Friday, May 27, 2016 by Kolohe

Math "Need Help Asap"!
Multiple Choice Use an equation to solve the problem. 1. What is 57% of 11? (1 point) 11 = 0.57 • n; 19.3 n = 57 • 11; 627 n = 0.57 • 11; 6.27 11 = 57 • n; 0.19 2. 224 is 25% of what number? (1 point) 224 • 0.25 = w; 560 224 = 0.25 • w; 896 224 &#...
Friday, May 27, 2016 by #FreeGucci

Math "Need Help Asap"!
Multiple Choice Use an equation to solve the problem. 1. What is 57% of 11? (1 point) 11 = 0.57 • n; 19.3 n = 57 • 11; 627 n = 0.57 • 11; 6.27 11 = 57 • n; 0.19 2. 224 is 25% of what number? (1 point) 224 • 0.25 = w; 560 224 = 0.25 • w; 896 224 &#...
Friday, May 27, 2016 by #FreeGucci

Math
Hi can you please help me with these math questions? I really need to know the answers. 21. Find the unit price for each option shown below. Round to the nearest cent when necessary. Indicate which option is the better buy. Option I: 10 candy bars for $6.75 Option II: 12 candy...
Friday, May 27, 2016 by Anonymous

math
19. 4k^2(-3k^2-4k+5) A. -12k^4-16k^3+20k^2 B. 12k^4-16k^3=9k^2 C. -12k^3+20k ** D. k^4+9k^2
Friday, May 27, 2016 by please help

math PsyDAG
write the result in scientific notation (1.1 * 10^-5)(3 * 10^-2) a. 4.1 *10^-7 b. 4.1 *10^10** c. 3.3 *10^-7 d. 3.3 *10^10
Friday, May 27, 2016 by please help

math
write the result in scientific notation (1.1 * 10^-5)(3 * 10^-2) a. 4.1 *10^-7 b. 4.1 *10^10** c. 3.3 *10^-7 d. 3.3 *10^10
Friday, May 27, 2016 by please help ms sue

Math "Need Help Asap"!
"Find each percent of markup?" 5.)Store's cos:$26 selling price:$39 6.)Store's cost:$125 selling price:$168.75 7.)Store's cost:$75 selling price:$90 "Find each selling price round to the nearest cent?" 8.)"A Video game costs a store $20. If...
Friday, May 27, 2016 by #FreeGucci

math
write the value of the expression 2^3/2^3 0 1** 2 3 2^2/2^5 8 6 1/8** -8 also can u recheck my last one ms sue thanks
Friday, May 27, 2016 by please help ms sue

Math "Need Help Asap"!
12.)Regular price: $16.99 percent of discount: 55%?
Friday, May 27, 2016 by #FreeGucci

math
x^11/x^4 a. x^7 b. X^15 ** c. x^44 d. x^11/4
Friday, May 27, 2016 by please help

math
7t^4x7t^4 a. 49t^8** b. 14t^4 c. 49t^16 d. 14t^8
Friday, May 27, 2016 by please help

Math
A nationwide survey showed that 65% of all children in the United States dislike eating vegetables. If 4 children are chosen at random, what is the probability that all 4 dislike eating vegetables? (Round your answer to the nearest percent.) The answer is 18% but how and why?
Friday, May 27, 2016 by Maya

MATH ANSWER HELP
A lights A lot quality inspector examines a sample of 25 strings of lights and finds that 6 are defective. a. what is the experimental probability that a string of lights is defective b.what is the best prediction of the number of defective strings of lights in a delivery of 1...
Friday, May 27, 2016 by Newscapepro

Math
If no digit can be used more than once, how many 5-digit numbers can be formed only using the numbers 3,8,1,2,5, and 7? A: 350 numbers B: 717 numbers C: 722 numbers D: 720 numbers I guessed the answer 720 and got it right but I don't know why the answer is 720. Can someone...
Friday, May 27, 2016 by Maya

math
4^3 x 4^12 a. 4^36** b. 4^15 c. 4^12 d. 4^9 x^11/x^4 a. x^7** b. X^15 c. x^44 d. x^11/4
Friday, May 27, 2016 by please help

math
A rectangular garden plot 16m by 24m is to bordered by a strip of uniform width X m wide on the outside, so as to double the area, find the new length and breadth of the rectangular garden
Friday, May 27, 2016 by kartik

math
4^3 x 4^12 a. 4^36** b. 4^15 c. 4^12 d. 4^9
Friday, May 27, 2016 by please help

math
x^11/x^4 a. x^7** b. X^15 c. x^44 d. x^11/4
Friday, May 27, 2016 by please help

MATH - CALC
Use calculus and algebraic methods to do a complete analysis (i.e., intervals of increase and decrease, intercepts, critical points, points of inflection, and intervals of concavity) for each of the following functions and then sketch a graph of the function. (19 marks) ƒ...
Friday, May 27, 2016 by Ab

math
In parallelogram ABCD,M is the mid point of diagonal BD;if BM bisects angle ABC,then what is the measurement of angle AMB?
Friday, May 27, 2016 by Rubi

Math
Good morning! Just doing some practicing for a class next semester. Could someone please refresh my memory on how to divide this? I keep getting 6/10. I even checked Khan to make sure I was doing the math right... 3 ÷ 1 5/6 The answer is 1 7/11 My work: 3/1 ÷ 30/...
Friday, May 27, 2016 by NursingStudent

math plz help
the Average age of three number is 32 base 5.If the sum of two number is 131 base 4.Find the third number in base 6? Step plz
Friday, May 27, 2016 by troy

math
what is the area of a square inscribed in a circle with apothum 3.5cm
Friday, May 27, 2016 by TS

math
A newspaper vendor sells newspapers at a commission of 6%. He earns rs 75 per day. what is the cost of newspapers? /////////***vvvv.urgent****//////// ans is rs 1175 how?
Friday, May 27, 2016 by sad

math
A newspaper vendor sells newspapers at a commission of 6%. He earns rs 75 per day. what is the cost of newspapers? /////////***vvvv.urgent****////////
Friday, May 27, 2016 by sad

math
Krishan bought 2400 bananas at rs 15 a dozen.He sold 1350 of them at rs 4 and the remaining at 5 for rs 8. find his gain or loss percent.
Friday, May 27, 2016 by sad

Math
Zack orders a box of 80 sweaters manufactured from a factory. He needs to check the quality of 30% of the sweaters. Select all of the equations that Zack could use to find x, the number of sweaters he needs to check.
Thursday, May 26, 2016 by Please help!!!!!!!

math
If the first term in an arithmetic sequence is 15 and the tenth term is 69. What is the fourth term in the sequence?
Thursday, May 26, 2016 by Anonymous

math
Find the volume of a cone in which d = 8 inch and h= 12 units?
Thursday, May 26, 2016 by What do I do please help

Math "Need Help Asap"!
11.)A soccer ball costs a store $29.50. what is the spelling price of the ball after a 35% markup? Round to the nearest cent.
Thursday, May 26, 2016 by #FreeGucci

math
Flying against the wind, an airplane travels 5600 km in 8 hours. Flying with the wind, the same plane travels 9900 km in 9 hours.
Thursday, May 26, 2016 by stephanie

math
A painter places an 8.5 ft ladder against a wall. The bottom of the ladder is 4 ft from the base of the wall. How high up the wall does the ladder reach? (hint: round to the nearest tenth)
Thursday, May 26, 2016 by Anonymous

math
The sales of a kids sneakers rose from $3 billion to $3.8 billion. Find the percent of increase to the nearest whole percent?
Thursday, May 26, 2016 by Anonymous

math
A credit card company charges 7% simple interest. What is the total interest on a $1,900 loan at the end of two years?
Thursday, May 26, 2016 by rebecca

Math
Which ordered pair is not a solution of y= -4x -9 A(-9,27) B(3,-21) C(-6,15) D(5,-28) I have no idea how to do this help please
Thursday, May 26, 2016 by Anon

Math
A circle whose area is 4 has a radius of x. Find the area of a circle whose radius is 3x.
Thursday, May 26, 2016 by Tama

math
A line connecting the points (x, 12) and (12, 9) has a slope 1.4. Determine X. a. 9 b. 10 c. 7 d. 8 Steepest slope? a. 0.4 b. undefined c. 0.1 d. -1 over 7 Flattest slope? a. 7 over 9 b. 0 (THIS ONE) c. undefined d. 2 over 3
Thursday, May 26, 2016 by john

Math
Suppose f (0) = 9, f ′(0) = 2, and f ″(0) = -4. If df is used to approximate Δf when Δx = 0.01, which of the following would be true? df < Δf df > Δf df = Δf
Thursday, May 26, 2016 by Jessica

Math (Percentages)
Write the closest benchmark for the percent. 1. 8% 2. 52% 3. 99% 4. 87% 5. 12 percent 6. 45% I don't understand the directions. What does it mean by the closest benchmark for the percent?
Thursday, May 26, 2016 by John Brown

Math ms sue??? (Check my anwsers????)
1) What would the slope be for a road that has a rise of 11m and a run of 100m? a. 22 over 100 b. 11 over 100 (THS ONE) c. 15 over 100 d. 30 over 100 2) What would the slope be for a road that has a rise of 5m and a run of 100m? a. 0.05 (THIS ONE) b. 0.25 c. 0.16 d. 0.02 3) ...
Thursday, May 26, 2016 by john

Math
A cross-section of a sphere, which is 6 units from the center of the sphere, has a circumference of 8π units. Find the surface area of the sphere.
Thursday, May 26, 2016 by Michelle

Math
Find the number of vertices in a polyhedron if it contains 20 triangular faces and 12 pentagonal faces. a. 30 b. 32 c. 60 d. 120 * Also please show me how you got your answer, thanks
Thursday, May 26, 2016 by Michelle

Math Mrs. Sue help
Write the value of the expression. 2^3/2^3 A. 0 B. 1 C. 2 D. 3 My answer is C
Thursday, May 26, 2016 by Kolohe

Math please help pronto
Which of the following expressions is true? A. 2^4 • 2^3 = 2^12 B. 3^3 • 3^6 > 3^8 C. 4^2 • 4^2 > 4^4 D. 5^5 • 5^2 = 5^10
Thursday, May 26, 2016 by Kolohe

Math-Calc
Find an equation of the tangent line to the curve 2(x2+y2)2=25(x2−y2) (a lemniscate) at the point (3,1). Please help.
Thursday, May 26, 2016 by Linda

Math-Calc
Suppose that f(x)=6x(3−2x)3. f(x)=6x(3−2x)3. Find an equation for the tangent line to the graph of ff at x=1x=1.
Thursday, May 26, 2016 by Phil

math grade 9
can someone check over my answers and correct them? *over means fraction 1) What would the slope be for a road that has a rise of 11m and a run of 100m? a. 22 over 100 b. 11 over 100 (THS ONE) c. 15 over 100 d. 30 over 100 2) What would the slope be for a road that has a rise ...
Thursday, May 26, 2016 by john

Math topic part 2
18. Complete the table. a 5 6 7 8 9 b 3.8 4.6 5.4 (2 points) Essay: 9.39 and 10.6 i did 5.4 divided by 7 times 8 and i received thees answers 1 /2 points I like that you figured out the rule first. Remember, when finding the rule, you want to determine what you do to x to get ...
Thursday, May 26, 2016 by Newscapepro

Math
Please help me with this ASAP! I need help with this just checking my answers thanks 1. There are 14 blue marbles, 8red marbles, and 12 green marbles in a jar. What is the ratio of the total number of marbles to the number of red marbles? A. 24:8 B. 34:8 (my answer) C. 8:34 D...
Thursday, May 26, 2016 by Katie

Math topic help
John invest $2,975 at 4% interest compound annually. What will be the balance in the account after? a) 3,272.50 b)3,281.48 c) 5,493.86********* d) 7,735.00 if i am wrong please explain why i am and what i should do, step wise thanks so much and hopfully this helps
Thursday, May 26, 2016 by Newscapepro

Math (Vectors)
Determine the values of a and b in the following vectors for the indicated property. m=<10,a,15> and n=<2,-3,b> and vector m is parallel to vector n. Thanks in advance!
Thursday, May 26, 2016 by Ray

College Algebra/Drug Calculations
Good afternoon. I was given a large packet to practice some math to prepare me for drug calculations. For some reason, I cannot get the answer to this fraction. I've tried a few ways, but maybe I forgot a step or am overlooking some silly mistake... 5/6 x 2/3 The answer is...
Thursday, May 26, 2016 by NursingStudent

Math
If you walk5/6 mile and then jog 4/5 mile, what is the total distance covered? How much farther did you walk than jog?
Thursday, May 26, 2016 by Shawn

Math
The capcity of an elevator is either 15 children or 11 adults.If 12 children are currently in the elevator, how many adults can still get in?
Thursday, May 26, 2016 by Anonymous

plz help math
The formula for the force between two objects is F=GMm/r^2 where M and m are the masses of the two objects, G is a constant, and r is the distance between them. Solve the formula for m .m=Fr^2/GM m=r^2/FGM m=GM/Fr^2 m=FGM/r^2
Thursday, May 26, 2016 by Claire

Calc-Math
The graphs of the function f (given in blue) and g (given in red) are plotted above. Suppose that u(x)=f(x)g(x) and v(x)=f(x)/g(x) Find each of the following:u(x) and v(x)..
Thursday, May 26, 2016 by Jenny

math
Elimination was used to solve a system of equations. One of the intermediate steps led to the equation 9x=27 . Which of the following systems could have led to this equation? 4x+3y=24 −5x−3y=3 7x−2y=15 x+y=6 9x+2y=21 −9x−2y=21 10x−y=15 x+y...
Thursday, May 26, 2016 by Claire

Math
What is 57% of 11? I just need help!
Thursday, May 26, 2016 by Hi

Ratios math
The ratio of the number of cars to the number of SUVs in a parking lot is 4:1. The ratio of the number SUVs to the number of Minivans is 4:5. (A) Find the ratio of the number of minivans in the parking lot. (B) if there are 20 minivans, how many vehicles are there all together...
Thursday, May 26, 2016 by Catania

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