Sunday

May 24, 2015

May 24, 2015

**Math**

a bag of fruit contains 4 apples, 1 plum, 2 apricots, 3 oranges. Pieces of fruit are drawn twice with replacement. What is p(apple, then apricot)? 4/5, 2/25, 3/25, 3/5 I chose 3/5
*Tuesday, May 12, 2015 at 2:11pm*

**math**

29.64 acres = how many hectares
*Tuesday, May 12, 2015 at 1:49pm*

**Math probability**

a bag of fruit contains 4 apples, 1 plum, 2 apricots, 3 oranges. Pieces of fruit are drawn twice with replacement. What is p(apple, then apricot)? 4/5, 2/25, 3/25, 3/5 I chose 3/5.
*Tuesday, May 12, 2015 at 1:41pm*

**Math**

How to calculate the volume of a rectangular prism as if it were a pyramid!?? Can you give me the formula as well too. I need help asap! and thanks
*Tuesday, May 12, 2015 at 1:27pm*

**Math probability**

Which of the following is an example of independent events? rolling a number cube selecting marbles from a bag without replacement after each draw Choosing and eating a piece of candy from a dish and then choosing another piece of candy pulling a card from a deck when other ...
*Tuesday, May 12, 2015 at 1:04pm*

**Math**

How to calculate the volume of a rectangular prism as if it were a pyramid!?? Can you give me the formula as well too. I need help asap! and thanks
*Tuesday, May 12, 2015 at 1:00pm*

**Math**

Give three additional polar coordinate pairs for the Point B: (-3,2π/3). -2 < π < 2
*Tuesday, May 12, 2015 at 11:43am*

**Math **

Kerry got her kite stuck in the very top of a tree. If she knows that she is standing 50 yards away from the tree and the angle that her kite string makes when held to the ground by her feet is 48 degrees, how tall is the tree?
*Tuesday, May 12, 2015 at 10:45am*

**Math**

Use the table below to answer the following question. x: 1, 2, 3, 4 y: 1, 4, 9, 16 Which is NOT true about the above table? A: It shows a linear function. B: The variable x increases by 1 each time. C: The rate of change is not constant. D: The variable y increases by a ...
*Tuesday, May 12, 2015 at 10:20am*

**math**

Some irrigation systems spray water in a circular pattern. You can adjust the nozzle so it sprays in certain directions. The nozzle in the diagram is set so it does not spray the house. If the spray has a radius of 12 ft, what is the approximate length of the arc that the ...
*Tuesday, May 12, 2015 at 10:05am*

**Math**

find the median of 2,2,26,14,49,42,39. If necessary, round to one decimal place. A) 14 B)25.4 C)39 D)26 I have done the math for this calculation by adding the numbers and then divided by 7 and got 24.85714286 by rounding I would have 24.9. Which isn't an option. So what ...
*Tuesday, May 12, 2015 at 9:36am*

**Math**

Simplify 2(x+2)+4x-10x. I do not understand how to do this problem and we did not go over simplifying in math class. Please help.
*Tuesday, May 12, 2015 at 8:39am*

**math**

Write the expression using a single exponent. 2^2*2^8 A.4^10 B.2^10 C.4^16 D.4^16 Is the answer C??
*Tuesday, May 12, 2015 at 12:44am*

**math help please**

In the expression -7x-5x^2, what is the coefficient of x? A.7 B.5 C.-5 D.-7 Is the answer D??
*Tuesday, May 12, 2015 at 12:39am*

**math help please**

How many terms are in the following polynomial? 6x^4+3x^3-2x^2+15x-14 A.5 B.4 C.3 D.2 Is the answer A??
*Tuesday, May 12, 2015 at 12:22am*

**Math to hard please help**

Name the coefficients in the polynomial. 4^2+3x-3 A. 4,-3,-3 B. 4,3 C. 4,3,3 D. -4,-3 Is the answer B??
*Tuesday, May 12, 2015 at 12:17am*

**Math Help :)**

1.)x^2+3x-4/x+4 *not sure* 2.)x/7x+x^2 *1/7x where =/0* 3.)5x^3/7x^3+x^4 *5/7x where x =/ 0 thank you *= my answer
*Monday, May 11, 2015 at 11:42pm*

**Math to hard please help**

Add or subtract (4x^2+15x-3)-(3x^2+5) A. 7x^2+15x-8 B. x^2+12x+2 C. x^2+15x-8 D. 7x^2+8 Please help me. Thanks
*Monday, May 11, 2015 at 11:41pm*

**Math to hard please help**

List three different ways to write 5^11 as the product of two powers. Explain why all three of your expresses are equal to 5^11. Please help me I don't know how to do this kind of math.
*Monday, May 11, 2015 at 10:51pm*

**math**

When a pendulum swings 35degree from the vertically, the weight moves 15cm horizontally and 5.3 vertically. The length of the pendulum____?
*Monday, May 11, 2015 at 10:40pm*

**math**

please help with in a day jamal spent 1 2/3 hours watching television 1 4/5 hours taking an afternoon nap, and 7/8 hour helping his mother with housework how much time did Jamal spend on watching television and helping with housework do I have to change this into minutes? I ...
*Monday, May 11, 2015 at 10:14pm*

**math**

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer.
*Monday, May 11, 2015 at 10:14pm*

**Math**

A car travelling at 23 miles per hour accelerates to 46 miles per hour in 5 seconds. It maintains that speed for 5 seconds before it slows to a stop in 5 seconds. Sketch and label a graph showing the car's speed over time.
*Monday, May 11, 2015 at 10:11pm*

**math**

Find the degree of-5w^3-4w^2+7w+16 A.-5 B.16 C.14 D.3 I don't know how to do this you please help me? Thank you
*Monday, May 11, 2015 at 9:50pm*

**math**

Simplify each polynomial a^2+5a-3a^2 A.5a+2a^2 B.-2a^2+5a C.-3a^2+6a D.5a-3a^2 Is the answer B?
*Monday, May 11, 2015 at 9:44pm*

**math**

sofia has a plate that has 4 sides of equal length, 2 pairs of opposite sides that are parallel and no right angles. what quadrilateral best describes the plate?
*Monday, May 11, 2015 at 9:36pm*

**math**

A 160‐inch strip of metal 20 inches wide is to be made into a small open trough by bending up two sides on the long side, at right angles to the base. The sides will be the same height, x. If the trough is to have a maximum volume, how many inches should be turned up on ...
*Monday, May 11, 2015 at 9:20pm*

**Math**

A bus driver filled up 7/8 fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. the capacity of her tank is 70 gallons. How much fuel did she use for the trip? Express your answer as decimal. Please help BJ Thank you
*Monday, May 11, 2015 at 9:08pm*

**math**

(10^2t)-2(10^t)+1=0 let 10^t=y please help
*Monday, May 11, 2015 at 9:02pm*

**math**

Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].
*Monday, May 11, 2015 at 8:03pm*

**math**

A particle moves on a line away from its initial position so that after t hours it is s = 6t2 + 2t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
*Monday, May 11, 2015 at 7:37pm*

**math**

the state of Colorado is roughly the shape of a rectangle the is miles by 382 miles. what is its area
*Monday, May 11, 2015 at 7:21pm*

**Math**

I have all the answers for c I just need to make sure I am correct. For b I am a little lost. For a I have the answer but I know I am probably wrong. The city of Valley Grove is considering shortening the length of the school day. The school board hired Mr. Kent to do a survey...
*Monday, May 11, 2015 at 6:39pm*

**Math 231**

In Mr. Everett's first-period class, 18 of 25 students passed the last test. In his second period, 17 of 23 passed. Use the percents to conclude which class did better. Show all work.
*Monday, May 11, 2015 at 6:33pm*

**Math**

How to simplify this expression √3b^2 / 27b^4
*Monday, May 11, 2015 at 6:05pm*

**math**

(x+2)2-1=3
*Monday, May 11, 2015 at 5:55pm*

**Math**

Select the inequality that models the problem. The length of a rectangle is four times its width. If the area of the rectangle is less than 100 square meters, what is the greatest width of the rectangle? 4w + w < 100 4 + 4w < 100 4w < 100 4w • w < 100
*Monday, May 11, 2015 at 5:51pm*

**Math**

Do the data in the table represent a linear function? if so, write a rule for the function X= -2,-1,0,1,2 Y= -7, 1,8,17,25 A. yes; y= 8x + 9 B. yes ; y = 8x +8 C. yes ; y = 1/8x+8 D. no*** plz help me
*Monday, May 11, 2015 at 5:43pm*

**Math**

Do the data in the table represent a linear function? if so, write a rule for the function X= -2,-1,0,1,2 Y= -7, 1,8,17,25 A. yes; y= 8x + 9 B. yes ; y = 8x +8 C. yes ; y = 1/8x+8 D. no***
*Monday, May 11, 2015 at 5:24pm*

**Math**

A prototype rocket burns 159 gallons of liquid hydrogen fuel each second during a regular launch. Make a table that shows how many gallons of fuel are burned after 2,3,5,and 10 seconds. Please help me
*Monday, May 11, 2015 at 5:19pm*

**Math**

5*3^n A.15,30,45,60*** B.5,15,45,135 C.0,15,45,135 D.15,45,135,405 I need help plz answer my question
*Monday, May 11, 2015 at 4:56pm*

**math**

Explain how to write a function rule from the table below. Then write a function rule. x 2 4 6 y 1 0 -1
*Monday, May 11, 2015 at 4:52pm*

**Math**

the cost of a student ticket to the schools play is $7. write an equation that correctly relates the cost,c,for particular number of student tickets,s,purchased indetify the independent and dependent variables (3 Points) Please help
*Monday, May 11, 2015 at 4:51pm*

**Extremly hard math**

The function rule C =10n+26 relates the number of people n who attend a small concert to the cost of dollars C of the concert. Make a table of the imput/output pairs to show the cost if 27,39, and 43 people attend. Please help me I dont understand any of this.
*Monday, May 11, 2015 at 4:44pm*

**Math**

use the function rule f(x)=x * |-1|^x. find the output f(2). A.4 B.3 C.-2 D.2
*Monday, May 11, 2015 at 4:30pm*

**Math**

Mackenzie wrote a deacimal in expanded form: (8x10)+(7x1)+(5x1/10)+(3x1/100)+(2x1/1,000) What is the decimal?
*Monday, May 11, 2015 at 4:27pm*

**Math**

5*3^n A.15,30,45,60*** B.5,15,45,135 C.0,15,45,135 D.15,45,135,405
*Monday, May 11, 2015 at 4:26pm*

**math **

Select the phrase that correctly completes the sentence The value of the dependent varibale in a function is always _________ the value of the independent A. Determined By B.greater than C.equal to D.less than
*Monday, May 11, 2015 at 4:08pm*

**Math**

Does the figure have rotational Symmetry? Find the angle of rotation. (It's just a picture of a star.) A-YES; 30 degrees B - YES, 60 degrees C- yes 72 degrees D no.
*Monday, May 11, 2015 at 3:56pm*

**math**

We throw 250 darts (one by one) at 1200 dart boards. Each dart strikes a board randomly. No dart's strike affects any other. What is the probability that two darts will strike the same board? I make it 1 in 1200, b/c the probability of the 1st dart striking a board is 1. ...
*Monday, May 11, 2015 at 3:42pm*

**Math last question.**

(3x^2 - 7x -4) - (6x^2 -6x +1) It's a polynomial I think the answer is D or C, but I'm not sure which one. Help please A. 3x^2 - 13x - 5 B. 9x^2 - x + 5 C. -3x^2 -13x + 5 D. -3x^2 -x -5
*Monday, May 11, 2015 at 3:17pm*

**Math**

Which is the best type of graph to show the number of markers in each classroom, if markers come in boxes of 20?
*Monday, May 11, 2015 at 3:14pm*

**Math **

add or subtract. P.s this is a polynomial. (2x^2 + 6x + 1) + (-7x^2 + 2x - 3) A. -9x^2 -8x + 2 B. 5x^2 + 8x - 2*** C. 5x^2 - 8x + 2 D. 5x^2 -4x -2 i choose B. check please
*Monday, May 11, 2015 at 2:59pm*

**math**

logb3=1.099 logb8=2.079 find logb216 i am just lost on what to do
*Monday, May 11, 2015 at 2:27pm*

**math **

what is 3256/9
*Monday, May 11, 2015 at 1:05pm*

**Math**

I need help with knowing how to simplify this radical. (8*sqrt7s/sqrt28s^3)
*Monday, May 11, 2015 at 12:06pm*

**Pseudocode**

Produce the algorithm for the problem above [this will include five “get” statements to input item 1, item 2, item 3, item 4 and item 5; three math statements to process the subtotal, tax and total; and three “display” statements to output the subtotal, tax...
*Monday, May 11, 2015 at 11:31am*

**math**

a large jug has 3 liters in it.andrew drink 1/2 litre of the juice.how much juice is left
*Monday, May 11, 2015 at 11:27am*

**Math**

Please help me find the slope of a line that is perpindicular to the line to the line containing the points -2, -1 and 2, -3. m = -2 m = 2 m= -1/2 m = -1 I think it is a, but I have no idea
*Monday, May 11, 2015 at 10:55am*

**Math**

Jack ran 3/4 km. Jack ran 1/2 km longer than Jill. What was the distance Jill ran?
*Monday, May 11, 2015 at 10:30am*

**Math 12A Plain Trigonometry**

a surveyor wishes to measure the distance between two objects, a carabao and a tower on the opposite side of the river. while standing at point R, he finds that the distance between the carabao is 30 meters, while the distance to the tower is 415 meters. The angle formed ...
*Monday, May 11, 2015 at 9:09am*

**Math 12A Plain Trigonometry**

a boat leaves lighthouse P and sails 10 miles. At the same time, it is sighted from lighthouse Q, 13 miles west of P. The bearing of the ship from Q is North 70 degree and 30 minutes East. Find the distance of the ship from Q.
*Monday, May 11, 2015 at 9:02am*

**Math**

What is the equation of the line that passes through the point (-2,3) and that is perpendicular to the line represented by 3x-2y=-2? A. 2x+3y=5 B. 2x+3y=7 C. -2x=3y=5 D. 3x-2y=-12 I think that the answer is D, but I am not too sure about it.
*Monday, May 11, 2015 at 7:55am*

**math**

Water is taken from a well 11m deep in a bucket,the rope winding up to a drum 35cm in diameter. A)Through what angle does the handle turn in winding up 1m of rope? B)How many revolutions of the handle does it take to bring the bucket up from the bottom? C)If the arm of the ...
*Monday, May 11, 2015 at 7:26am*

**math**

The population of a certain country grows according to the formula N=N0e^kt where N is the number of people(in millions) after t years,N0 is the initial number of people(in millions) and k=1/20In 5/4.Calculate the doubling time of this population.Leave your answer in terms of ...
*Monday, May 11, 2015 at 5:07am*

**math**

a certain recipe for 7/8 cup of granola. How much is needed to make 5/4 of the recipe
*Monday, May 11, 2015 at 2:55am*

**math**

The length of a rectangular solid is three times the width. Find the volume and the length of its diagonal if the total surface area is 198 square inch
*Monday, May 11, 2015 at 12:54am*

**College math**

Each inidividual letter of the word Tallahassee is placed on a piece of paper and all 11pieces of paper are placed in a hat, if one letter is selected at random from the hat, determine the probability that the letter T or F is selected.
*Monday, May 11, 2015 at 12:38am*

** math**

A prototype rocket burns 159 gallons of liquid hydrogen fuel each second during a regular launch. Make a table that shows how many gallons of fuel are burned after 2,3,5, and 10 seconds.
*Monday, May 11, 2015 at 12:19am*

**math**

In a camp ,there is a meal for 120 men or 200 children . if 150 children have taken the meal, how many men will be catered to with remaining meal
*Monday, May 11, 2015 at 12:15am*

**math**

In a camp ,there is a meal for 120 men or 200 children . if 150 children have taken the meal, how many men will be catered to with remaining meal
*Monday, May 11, 2015 at 12:09am*

**math**

population increasing at rate of 5% per year current population 7,000,000 what will it be in 12years
*Sunday, May 10, 2015 at 11:22pm*

**math**

A particle moves along the x-axis with position function s(t) = esin(x). How many times in the interval [0, 2π] is the velocity equal to 0?
*Sunday, May 10, 2015 at 11:15pm*

**math**

A news papers profit is $25 per year for each of it's 5500 subscribers. Management estimates that the profit per subscriber will increase by 1 cent for each additional subscriber over the current 5500.How many will bring a total profit of $180,000
*Sunday, May 10, 2015 at 11:07pm*

**math**

While building a snowman, a large snowball is created at the rate of 5 inches per hour. How fast is the volume of the snowball changing at the instant the snowball has a radius of 10 inches?
*Sunday, May 10, 2015 at 9:38pm*

**Math**

Tobias is helping his uncle paint the side of a barn. Each can of paint covers 80 square feet. If the side of the barn is 10 feet high and 15 feet wide, how many cans of paint will Tobias need?
*Sunday, May 10, 2015 at 7:24pm*

**math**

a locker combination has tow nonzero digits and digits can be used twice. the first number is 8.what is the probality that the second number is 8
*Sunday, May 10, 2015 at 7:05pm*

**Stats (Math)**

Assume that Science scores on a 25-point quiz for a random sample of 5 students were drawn from a normal population. The assumed variance was 20 while the recorded variances were: 18, 16, 10, 13, and 23. You suspected that the variance is actually higher. What test do you need...
*Sunday, May 10, 2015 at 7:04pm*

**Math**

(a) Find the present value of $ 4600 per year flowing uniformly over a 10 -year period if it earns 5.3 % interest compounded continuously. (b) What is its final value?
*Sunday, May 10, 2015 at 5:47pm*

**math**

If 50100 dollars is deposited in an account for 14 years at 5.35 percent compounded continuously , find the average value of the account during the 14 years period.
*Sunday, May 10, 2015 at 5:29pm*

**Math**

Can you help me to understand the meaning of reduction?
*Sunday, May 10, 2015 at 5:00pm*

**Math**

Which set of best describes the numbers used on a scale for a standard thermometer? A.whole numbers B.rational numbers C.real numbers D.integers I choose Real Numbers if I am incorrect can you explain why.
*Sunday, May 10, 2015 at 4:40pm*

**Math**

Solve for y, state the m and b, and graph. X-3y+9=0
*Sunday, May 10, 2015 at 4:06pm*

**Math**

If the line through (x,1) and (0,y) is coincident with the line through (1,4) and (2,-3), find x and y.
*Sunday, May 10, 2015 at 5:07am*

**Math**

Given Perimeter of triangle is 26 inches. Side A is 3 inches longer than B. Side C is 1 inch shorter than twice side B
*Sunday, May 10, 2015 at 4:17am*

**Math to hard please help**

The function rule C= 10n+26 relates the number of people n who attend a small concert to the cost in dollars C of the concert. Make a table of the input/output pairs to show the cost if 27,39, and 43 people attend.
*Sunday, May 10, 2015 at 2:56am*

**math**

sin
*Sunday, May 10, 2015 at 1:56am*

**math**

The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r1−γ , where γ is a constant. Find γ for e = 0.55 and r = 7.5.
*Sunday, May 10, 2015 at 1:13am*

**math**

A jar contains 5 green erasers, 2 striped erasers, 4 pink erasers, and 3 white erasers. You select an eraser at random. What is P(pink)? a)2/7 b)2/5 c)5/7 d)4/7
*Saturday, May 9, 2015 at 11:04pm*

**Math**

Joseph spent 3/4 hour working out at the gym. He spent 2/3 of that time lifting weights. What fraction of an hour did he spend lifting weights?
*Saturday, May 9, 2015 at 10:55pm*

**Common Core Math II A-CR **

A firework is launched into the air from ground level with an initial velocity of 128 ft/s. If acceleration due to gravity is –16 ft/s2, what is the maximum height reached by the firework?
*Saturday, May 9, 2015 at 9:29pm*

**Math**

phyllis wants to fence in a rectangular garden with maximum area. she has 22 feet of fence. all the lengths of the sides of her garden must be whole numbers of feet. what is the best choice available to phyllis for the side lengths of her garden? Why?
*Saturday, May 9, 2015 at 8:46pm*

**algebra**

In 2018, the number of people employed as registered nurses in the U.S. is expected to be 3,200,000. This represents a 22% increase over the number of people employed as registered nurses in 2008. Find the number of registered nurses employed in 2008. Round to the nearest ...
*Saturday, May 9, 2015 at 8:01pm*

**math**

Angles MRQ and RPN are alternate interior angles. If angle MRQ=5x+7 and angle RPN=7x-21, what is the value of x?
*Saturday, May 9, 2015 at 6:11pm*

**math**

In the parallelogram below, if angle B=2x+15 and angle A=3x-5, what is the measure of angle D?
*Saturday, May 9, 2015 at 6:08pm*

**math**

If AB=7 and BC=12, then what is the length of AC?
*Saturday, May 9, 2015 at 6:02pm*

**math**

The altitude of equilateral triangle ABC is 15. What is the length of a side of triangle ABC?
*Saturday, May 9, 2015 at 5:59pm*

**math**

angles MRQ and RPN are alternate interior angles. If angle MRQ=5x+7 and angle RPN=7x-21, what is the value for angle MRQ?
*Saturday, May 9, 2015 at 5:55pm*

**math**

an angle measuring 32 degrees has a complement that measures (2x-16) degrees. What is the value of x?
*Saturday, May 9, 2015 at 5:09pm*

**Math**

A bag of five apples contains three ripe apples and two rotten apples. If a ripe apple is selected first, what is the probability that a second apple selected is rotten?
*Saturday, May 9, 2015 at 4:42pm*