Sunday

June 26, 2016
**math**

you spin a 6 section red spinner and a 6 section blue spinner. Find P(red less than 4 and a red 2).
*Thursday, May 5, 2016 by help me*

**math 5th grade**

The width of a picnic table is 3 times its length. If the length is 5 6 -yd long, what is the area of the picnic table in square feet? sides are 2 1/2 yd and 5/6 yard. then to find area 2 1/2 x 5/6 = 2 5/12 y2 how do I find square feet?
*Thursday, May 5, 2016 by paul*

**Math ---HELP!!!!!**

Decide which of the described variables is/are likely to have a normal or near-normal distribution. a) The heights of corn stalks in one row of corn that is half a mile long b) The numbers of viewers of each of the channels from 202 to 550 on Direct TV at 7:00 PM CDT on the ...
*Thursday, May 5, 2016 by angela*

**Math **

Early this spring researchers have recently discovered that there is one small remnant population of endangered bluegrass left in a small prairie plot outside of Kansas City. If there are approximately 850 individuals in the cohort, how many individuals can the researchers ...
*Thursday, May 5, 2016 by Anonymous*

**Math**

You run a small furniture business. You sign a deal with a customer to deliver up to 500 chairs, the exact number to be determined by the customer later. The price will be $120 per chair up to 400 chairs, and above 400 the price will be reduced by $0.25 per chair (on the whole...
*Thursday, May 5, 2016 by Lucas*

**Business math**

Choose the correct answers for (a) the total installment price, (b) the carrying charges, and (c) the number of months needed to save the money at the monthly rate to buy the item for its cash price. A dinette table with a cash price of $200 at $8.50 down and $11.00 per month ...
*Thursday, May 5, 2016 by Carrie*

**math**

yesterday, lena had 55 baseball cards. Today she gave c away. using c write an expression for the number of cards lena has left.
*Thursday, May 5, 2016 by michele*

**Math**

Geoff is reading a book. On Monday he reads 1/3 of the book. On Tuesday he reads 3/10 of the remaining pages. He has 35 pages left to read. How many pages are in the book?
*Thursday, May 5, 2016 by Speakerabbit*

**Math**

–14 – ( –16 ) = ? Please help. Thank you!
*Thursday, May 5, 2016 by Help!*

**Math ---HELP!!!!!**

The mean score on the exit examination for an urban high school is 63 with a standard deviation of 9. What is the standard deviation of the distribution of sample means with a sample size of 9? A. 2 B. 3 C. 4 D. 4.1 answer B
*Thursday, May 5, 2016 by angela*

**Math ---HELP!!!!!**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, approximately what percentage of light bulbs has a life of more than 3000 hours? A. About 84% B. About 68% C. About 32% D. About 16% Answer B
*Thursday, May 5, 2016 by angela*

**Math ---HELP!!!!!**

A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.77 hours. Assume that a random sample of 40 mechanics is selected and the mean rebuild time of the ...
*Thursday, May 5, 2016 by angela*

**Math ---HELP!!!!!**

The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 Answer : B---43.30
*Thursday, May 5, 2016 by angela*

**Math ---HELP!!!!!**

Decide which of the described variables is/are likely to have a normal or near-normal distribution. a) The heights of corn stalks in one row of corn that is half a mile long b) The numbers of viewers of each of the channels from 202 to 550 on Direct TV at 7:00 PM CDT on the ...
*Thursday, May 5, 2016 by angela*

**Math ---HELP!!!!!**

light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, use the 68-95-99.7 rule to approximate the percentage of light bulbs having a life between 2000 hours and 3500 hours? A. About 13.5% B. About 50% C. About 68...
*Thursday, May 5, 2016 by angela*

**Math ---HELP!!!!!**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours? A. About 25% B. About 50% C. About 75% D. About 68% Answer B
*Thursday, May 5, 2016 by angela*

**math**

determine which ordered pair is a solution of y=2x-3.
*Thursday, May 5, 2016 by anna*

**math**

There were 35 gallons of water in a tank and 4.5 gallons of water in a pail. An equal amount of water was poured into a tank and the pail. The ratio of the water in the tank to the pail became 7:2. a) How much water was in the pail in the end? b) How much water was poured into...
*Thursday, May 5, 2016 by Emilyyyyyyyyyyy*

**math**

The figure below is not drawn to scale. The ratio of the triangle ABC to the area of triangle DEC to the area of the triangle FGH is 7:5:3. If 20% of the area of triangle DEC is shaded, what percentage of the figure is unshaded?
*Thursday, May 5, 2016 by Emilyyyyyyyyyyy*

**math. compounding interest**

regina deposits 3500 in a savings account that pays 7 1/2 % interest , compounded semiannually. how much interest does the account earn in the first 6 months?
*Thursday, May 5, 2016 by Anonymous*

**math**

find the distance (0,0) and (5,8) round the answer to the nearest hundred how do you calculate distance
*Thursday, May 5, 2016 by val*

**math**

Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Rectangular Prism Length:8 in Width: 2 in Height: 2 in A) 8 in x 4 in ...
*Thursday, May 5, 2016 by Larry vandermark*

**math**

The area of a triangle is 45cm and the altitude is 5cm greater than the base. Find the length of the base.
*Thursday, May 5, 2016 by bob*

**Math**

1. Simplify. 3x^2+ 5x-5x^2-4x+5-2 A.-8x^2-9x+3 B.2x^2+x+3 C.-2x^2-9x+3*** D.-2x^2+x+3 2. Add or Subtract.(8x – 2y) + (3x – 4y) A.11x+8y B.4x-y C.11x-6y*** D.5x+2y 3.(5x^2-4x-1)-(-4x^2-4) A.-9x^2-8x-1 B.9x^2-4x+3*** C.x^2-4x-3 D.9x^2+4x-3 4.The distance from Newtown ...
*Thursday, May 5, 2016 by Emma*

**Math**

2cos(45)-tan(45)/90.5-64 =?
*Thursday, May 5, 2016 by Roygbiv*

**MATH ANSWER HELP**

Graphing in the Coordinate Plane Unit Test
*Thursday, May 5, 2016 by john hobert*

**consumer math**

John Tucker is interested in purchasing stock. He wants to determine the costs.
*Thursday, May 5, 2016 by WoopGotti*

**Math**

For 7 days keep track of the number of pieces of mail you receive at your home. a. Put your data into a frequency table having intervals of 0–4, 5–9, 10–14, and 15–19. b. Use the frequency table to create a histogram of the data. c. Do you notice any ...
*Thursday, May 5, 2016 by 7thgradestudent*

**math**

If f(x)=6x^3 - ax^2 + bx + c when a, b and c are constant when f(x) is divided by x^2 - 4 the remainder is 23x - 26. When f(x) divided by (x + 3) the remainder is -220. Find: (A) the value of a, b and c (B) the solution of the equation f(x)=0
*Thursday, May 5, 2016 by somay*

**Math**

2cos(45)-tan(45)/90.5-64 =?
*Thursday, May 5, 2016 by Roygbiv*

**math**

T =ƒaƒy+ beƒ{^- kt (Equation 2) where T is the temperature at time t, and a, b and k are constants with values a = 20 „aC, b = 80 „aC and k = 2.6 ¡Ñ 10ƒ{4 sƒ{1. Differentiate Equation 2 with respect to t and thus give values...
*Thursday, May 5, 2016 by Jack*

**Math**

A boy is trying to find the height of a tree. When he stands 95.5 metres away from the tree (the distance D in Figure 2) the angle shown as è in Figure 2 is 31.5°. The boy’s eyes are 1.15 m from the ground (h in Figure 2). What is the height of the tree? You ...
*Thursday, May 5, 2016 by Jack*

**math**

The fourth term of an ap is 1 less than twice the second term. If the sixth term is 7, find the first term.
*Thursday, May 5, 2016 by Kamil*

**math**

A wire of length 12 1/2m is cut into 10 pieces of equal length. Find the length of each piece.
*Thursday, May 5, 2016 by taashu*

**Math **

Ms hunt is standing on top of the building that is 135m tall. The angle of depression to the top of the building next door is 71 degrees. The angle of depression to the base of the building is 77degrees. The buildings are 31m apart. How tall is the other building
*Thursday, May 5, 2016 by Nikka*

**math**

a paper cone have a base diameter of 10cm and height of 12cm.calculate the volume of the cone
*Thursday, May 5, 2016 by Ibrahim*

**trig, precalc, math, algebra, trigonometry **

Rewrite: tan(cos^−1 (v)) as an algebraic expression in v. Please help me understand.
*Thursday, May 5, 2016 by Veronica *

**math**

Melissa returned home from mowing lawns at 4:15 PM. It took 1 and ¾ hours of an hour to mow the first lawn. The second and third lawns she mowed each took 1 and ⅕ hours. She took only a 45-minute break. When did Melissa begin mowing the first lawn?
*Thursday, May 5, 2016 by Anonymous*

**math**

Ellijah and Angela are playing a game that has two piles of cards. Each of the 12 cards in one pile lists one month of the year. Each of the 7 cards in the other pile lists a day of the week. On each person’s turn, the player randomly chooses one card from each pile. What...
*Thursday, May 5, 2016 by Anonymous*

**Math**

In a group of 500 women how many would you expect to be taller than 6 feet?
*Thursday, May 5, 2016 by Anonymous*

**math**

A number cube is rolled 310 times and the results recorded: 50 ones, 55 twos, 44 threes, 53 fours, 52 fives, and 56 sixes. What is the experimental probability of rolling an even number, as a percent?
*Thursday, May 5, 2016 by please help me quickly I'm so confused*

**math**

make s the subject of the formula in d=c-s/n
*Thursday, May 5, 2016 by Anonymous*

**Physics, Math**

A helicopter is in a level flight with an altitude of 4000 feet and a speed of 130 feet/sec. The helicopter drop a bomb with 0 speed relative to the helicopter. How far does the bomb travel horizontally from the launch point to impact with the ground?
*Thursday, May 5, 2016 by Alex*

**math**

the question is the formula use in calculating depreciation that is reducing balance method which is (1-n√s/c)×100/1 now we were asked to now make each of n,s,and c in the formula the subject of the formula please help me
*Wednesday, May 4, 2016 by Anonymous*

**Finite Math**

A student is making out her schedule for next year. Her list consists of 9 required courses and 12 elective courses. She must take at least 4 courses but cannot take more than 6 courses. In how many ways can she select courses such that she takes at least one elective course?
*Wednesday, May 4, 2016 by Jay*

**Math**

The following table shows the rate of water flow (in L/min) through a dam. t (min) 1 6 11 16 21 26 31 V'(t) (L/min) 1 8 2 9 7 5 9 Approximate the total volume of water that passed through the dam from t=1 to t=31 using Simpson's rule, with n=6.
*Wednesday, May 4, 2016 by Steve*

**Math **

Use Simpson's Rule and all the data in the following table to estimate the value of the integral b=-5 a=-11 x= -11 -10 -9 -8 -7 -6 -5 y= 6 -9 -3 -9 -1 -9 -1
*Wednesday, May 4, 2016 by John*

**Math**

f(x) = cos (1/x) Find the limit as x approaches infinity and find the limit as x approaches negative infinity. Identify all horizontal asymptotes.
*Wednesday, May 4, 2016 by David *

**Math**

f(x) = cos (1/x) Find the limit as x approaches infinity and find the limit as x approaches negative infinity. Identify all horizontal asymptotes.
*Wednesday, May 4, 2016 by David *

**Math**

Suppose the equation v=16.2x^2 - 192.1x + 2800 represents the value of a house from 1925 to 1950. When did the house have the lowest value? Round to the nearest whole number. (X=0 in 1925)
*Wednesday, May 4, 2016 by Koki*

**math**

Can you please help me with a math problem
*Wednesday, May 4, 2016 by Anonymous*

**math **

Help please I have a test tomorrow morning
*Wednesday, May 4, 2016 by Anonymous*

**Math**

You run a small furniture business. You sign a deal with a customer to deliver up to 500 chairs, the exact number to be determined by the customer later. The price will be $120 per chair up to 400 chairs, and above 400 the price will be reduced by $0.25 per chair (on the whole...
*Wednesday, May 4, 2016 by Lucas*

**Math**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, approximately what percentage of light bulbs has a life of more than 3000 hours? A. About 84% B. About 68% C. About 32% D. About 16% Answer B
*Wednesday, May 4, 2016 by angela*

**Math**

A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.77 hours. Assume that a random sample of 40 mechanics is selected and the mean rebuild time of the ...
*Wednesday, May 4, 2016 by angela*

**Math**

solve. A rectangular room with an area of 300 square feet. I need to change the area to 363 square feet by increasing both the length and the width by the same percentage. By what percentage did the increase
*Wednesday, May 4, 2016 by Anonymous*

**Math**

The mean score on the exit examination for an urban high school is 63 with a standard deviation of 9. What is the standard deviation of the distribution of sample means with a sample size of 9? A. 2 B. 3 C. 4 D. 4.1 answer B
*Wednesday, May 4, 2016 by angela*

**math**

A runner has a stride length of 5 feet for the first half of the race and a stride length of 4.5 feet for the second half. How many strides would it take to finish the second half of the marathon? Hint: 5 ft is 5.0 x 10 4.5 is 4.5 10
*Wednesday, May 4, 2016 by kris*

**Help my son's math**

A TRAIN IS TRAVELING AT A RATE OF 76KM EACH HOUR . ESTIMATED THE TIME IT WILL TAKE THE TRAIN TO TRAVEL 399KM??
*Wednesday, May 4, 2016 by Kevin*

**Math**

You run a small furniture business. You sign a deal with a customer to deliver up to 500 chairs, the exact number to be determined by the customer later. The price will be $120 per chair up to 400 chairs, and above 400 the price will be reduced by $0.25 per chair (on the whole...
*Wednesday, May 4, 2016 by Lucas*

**math**

solve log(2+x)-log(x-3)=log2
*Wednesday, May 4, 2016 by sarah*

**Math**

The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 Answer : B---43.30
*Wednesday, May 4, 2016 by angela*

**Math**

Decide which of the described variables is/are likely to have a normal or near-normal distribution. a) The heights of corn stalks in one row of corn that is half a mile long b) The numbers of viewers of each of the channels from 202 to 550 on Direct TV at 7:00 PM CDT on the ...
*Wednesday, May 4, 2016 by angela*

** Math**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, use the 68-95-99.7 rule to approximate the percentage of light bulbs having a life between 2000 hours and 3500 hours? A. About 13.5% B. About 50% C. About ...
*Wednesday, May 4, 2016 by angela*

**Math**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours? A. About 25% B. About 50% C. About 75% D. About 68% Answer B
*Wednesday, May 4, 2016 by angela*

**Math**

Write twenty million, five hundred ten thousand in expanded notation using exponents.
*Wednesday, May 4, 2016 by Elizabeth*

**Math**

The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.25 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.24 inches? A. 79.13% B. 82.46% C. 84.13% D. 84.46% answer:C
*Wednesday, May 4, 2016 by angela*

**Math**

The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mm Hg and a standard deviation of 12 mm Hg. What percentage of 18-year-old women have a systolic blood pressure that is within 3 standard deviations of the mean on either side? Apply ...
*Wednesday, May 4, 2016 by angela*

**Math**

Draw 2 different rectangles with a the perimeter of 8cm. One rectangle has the least area. The other rectangle has the greatest area.
*Wednesday, May 4, 2016 by Iya*

**math**

The area of a plot of land is 2496 square meters. A small part of the land is fenced. The ratio of the area of the plot of land to the area that is not fenced is 48:31. What is the area of the land that is not fenced? (5th grade math)
*Wednesday, May 4, 2016 by ben*

**math**

I think of a number double it and add 14. The result is 36. What is the number? With working
*Wednesday, May 4, 2016 by Doniqua*

**math**

evaluate |-8| + |2| does it mean 8 + 2?
*Wednesday, May 4, 2016 by maya*

**math**

evaluate |-8| + |2|
*Wednesday, May 4, 2016 by may*

**math literacy, life science, history,sotho**

What careers can I study for, where and how much will it cost????
*Wednesday, May 4, 2016 by pitso ROFIWA *

**Math**

he ate 1/8 of the cereal then ate 1/6 of what was left next day. how much did he eat the second day
*Wednesday, May 4, 2016 by Nico*

**Math**

space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) (6,1)|(6,2)|(6,3)|(6,5)|(6,5)|(6,6) ...
*Wednesday, May 4, 2016 by Till a*

**math**

the volume of a prism is 56cm^3 if the length is 7cm and the width is 4 cm what should be the height?
*Wednesday, May 4, 2016 by may*

**math**

write a phrase for y+9.
*Wednesday, May 4, 2016 by M&M*

**Math**

3+3=-+2
*Wednesday, May 4, 2016 by Bella*

**Math**

Jim wants to give 4 friends 3/5 of pizza how many pizzas will he need
*Wednesday, May 4, 2016 by Faith *

**Math**

1. Write the number of permutations in factorial form. Then simplify. How many different ways can you and six of your friends sit in your assigned seats in math class? A.6!; 120 B.6!; 720 C.7!; 2,520 •• D.7!; 5,040 Correct me
*Wednesday, May 4, 2016 by Till a*

**Math**

a trading token is in the shape of a trapezoid and has an area of 25 square centimeters and the bases are 3 and 7 centimeters what is the height of the token.
*Wednesday, May 4, 2016 by Angleo*

**math**

Is the relation a function? 4 -> 8 7 -> 11 10 -> 14 12 -> 10 A. yes B. no
*Wednesday, May 4, 2016 by emily*

**Math Please Help ASAP**

(m^2-m-3)+(m-4) m^2+m-1 m^2+2m-7 m^2-7 m^2-1 please help, is it D?
*Wednesday, May 4, 2016 by random person who probly takes the same class as you*

**math**

I think of a number double it and add 14. The result is 36. What is the number? With working
*Wednesday, May 4, 2016 by Doniqua*

**Math **

Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Rectangular Prism Length:8 in Width: 2 in Height: 2 in A) 8 in x 4 in ...
*Wednesday, May 4, 2016 by Sally*

**Math**

Which best describes best describes your ability to graph inequality
*Wednesday, May 4, 2016 by Emma*

**Math**

Write and simplify the polynomial represented by the model. (Model shows: 3 big blank squares, 2 long black rectangles, 3 small blank squares, 1 big black square, 6 small black squares) a. -2x^2 + 2x + 3 b. 2x^2 - 2x - 3 c. 3x^2 - 2x - 3 d. 2x^2 - 2x + 3
*Wednesday, May 4, 2016 by jai*

**Math**

The solutions to nx^2 + px + q=0 are 4 and -2/5. What information does this tell you about the graph of f(x)= nx^2 + px +q? If you could answer this for me, that would be great. Thanks in advance :)
*Wednesday, May 4, 2016 by Heaven*

**math**

find the area of prism 5 millimeters 6 meters 13 meters not drama scale A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared
*Wednesday, May 4, 2016 by Larry vandermark*

**Math**

9 hundreds + 18 tens +13 ones
*Wednesday, May 4, 2016 by Shakeya*

**math**

Eight players P:I, P2,. ..... P8 play a knock-out tournament. It is known that whenever the players Pi and Pj play; the player Pi will win if i < j. Assuming that the players are paired at random in each round, what is the probability that the player P4 reaches the final ?
*Wednesday, May 4, 2016 by please please please help me solve this urgently *

**MATH HELP ASAP**

For questions 1–4, find the slope of the following graphs. 1. a. 1/2 b. 2 c. 2 d. -1/2 2. a. 3/2 b. 1 c. -1 d. -3/2 3. a. 2/3 b. 3/2 c. 3 d. -2/3 4. a. 0 b. 1 c. -1 d. undefined For questions 5 and 6, find the slope of the line that goes through the following points. 5. x...
*Wednesday, May 4, 2016 by Anon*

**math**

If the mean wage of a part time lecturer in a college is 250.00 per month and standard deviation of 25.00.find these probabilities for a randomly selected lecturer,assuming the variable is normally distributed, a.the lecturer earns more than 280.00. b.the lecturer earns more ...
*Wednesday, May 4, 2016 by farahan *

**math**

find the area of prism 5 millimeters 6 meters 13 meters not drama scale. A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared help
*Wednesday, May 4, 2016 by Larry vandermark*

**Math**

The following data set is the GPAs of the students in a statistics class. 1.93, 1.99, 2.00, 2.04, 2.12, 2.34, 2.55, 2.55, 2.75, 2.75, 2.80, 2.80, 2.85, 3.02, 3.12, 3.22, 3.31, 3.33, 3.45, 3.69 What percentile is a GPA of 2.34? A. About the 6th B. About the 15th C. About the ...
*Wednesday, May 4, 2016 by angela*

**Math**

Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be? A. Symmetric with little variation B. Symmetric with large variation C. Skewed right with ...
*Wednesday, May 4, 2016 by angela*

**math**

find the area of prism 5 millimeters 6 meters 13 meters not drama scale A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared help
*Wednesday, May 4, 2016 by Larry vandermark*

**Math please help me i need this answer ASAP**

Using the same two number cubes numbered one through six, think about the event of rolling a sum that is greater than 10. This event would consist of all of the outcomes where the sum is greater than 10.
*Wednesday, May 4, 2016 by FluttershyK22*

**Math**

Suppose that your income is at the 81st percentile of wage earners in the United States. What percent of wage earners make more than you do? A. 19% B. 81% C. Cannot be calculated from the information given D. None of the above Answer:A
*Wednesday, May 4, 2016 by angela*