# Denise

Popular questions and responses by Denise-
## Math

Katherine earned 84,92,84,74, and 70 on her first five test. What is the minimum grade Katherine needs to earn on the next test to have a mean of 84 ?

*asked on May 9, 2016* -
## stats math

Suppose that two cards are randomly selected from a standard 52-card deck. What is the probability that the first card is a spade and the second card is a space if the sampling is done without replacement?

*asked on November 26, 2012* -
## Math

What is the net price factor for trade discounts of 25/15/10? Use the net price factor you found in the previous question to find the net price of a couch listed for $800.

*asked on May 20, 2013* -
## Chemistry

Calculate the solid needed to make a 250ml solution that is 0.34M in sodium cation, using sodium sulfate decahydrate. I came up with 13.685g. but how do I make that into 250ml of a solution that is0.34M in sodium cation?

*asked on October 27, 2011* -
## force

A 10-kg box is pulled along a horizontal surface by a force of 40N applied at a 30° angle above horizontal. The coefficient of kinetic friction is 0.3. Calculate the acceleration

*asked on October 30, 2015* -
## Precalculus

The legs of a right triangle measure 5 inches and 7 inches. If theta is the angle between the 5-inch leg and the hypotenuse, sin theta=_____. A. .71 B. .81 C. .07 D. .58

*asked on May 26, 2015* -
## Precalculus

A 60-foot tree casts a shadow 85 feet long. The sine of the angle of elevation of the top of the tree to the sun is approximately ___. A. .82 B. .75 C. .58 D. .33

*asked on May 25, 2015* -
## physical science

If a sample emits 1000 counts per second when the detector is 1 meter from the sample, how many counts per second would be observed when the detector is 2 meters from the sample?

*asked on April 29, 2013* -
## math

convert the credit card rate to APR Oregon, 2 1/4% per month

*asked on March 3, 2013* -
## Business Management

What kinds of queries would be useful to Woodcraft, assuming that it wants to improve its sales, relationship with its customers, or other aspects of its business? Describe what information you might want to select from the database in the form of a query,

*asked on March 22, 2015* -
## Precalculus

The arc corresponding to a central angle of 35 degrees in a circle of radians 10 feet measures _____ feet. Round your answer to two decimal places.

*asked on May 26, 2015* -
## Markov chains

A company has 2 machines. On any day, each machine that is working has a 1/3 chance of breaking down. If a machine breaks down during the day, it is sent to a repair facility and will be working 2 days after it breaks down. Letting the state of the system

*asked on November 18, 2012* -
## Chemistry

calculate the percent composition, by mass, of carbon in Na2CO3. please explain how you get the answer.

*asked on January 2, 2011* -
## science

2 grams of salt are dissolved in 20 grams of water. How much will the mixture weigh?

*asked on April 23, 2010* -
## Math

Which fraction equals a repeating decimal? a) 5/80 b) 11/88 c) 17/85 d) 18/81

*asked on August 30, 2018* -
## Math

A child's. Dose for cefadroxil is 30mg/kg body weight once a day for 14 days.what is the smallest bottle that will provide. Enough medication to last 14 days. If child weighs 44 lbs.

*asked on May 15, 2016* -
## Accounting

The following unadjusted trial balance is prepared at fiscal year-end for Nelson Company. NELSON COMPANY Unadjusted Trial Balance January 31, 2013 Debit Credit Cash $ 26,150 Merchandise inventory 14,500 Store supplies 5,000 Prepaid insurance 2,100 Store

*asked on October 16, 2013* -
## math

I have 13 ones and 4 tens. Who am I

*asked on January 22, 2013* -
## pre algebra

a total of 400 tickets were sold for the school play, they were either adult tickets or student tickets. there were 50 fewer student tickets sold than adult tickets. how many adult tickets were sold

*asked on November 15, 2014* -
## Physics

A figure skater rotates about a vertical axis through her center with both arms and one leg extended. Her rotation rate is 0.65 rev/s. She then pulls her arms and leg closer to her body and begins to spin at a 1.85 rev/s. What is the ratio of her new

*asked on April 5, 2013* -
## gcu

Show that 9300 cal is required to change 15 g of 20° C water to 100° C steam.

*asked on September 14, 2014* -
## Math

From a survey of 100 college students, a marketing research company found that 60 students owned iPods, 50 owned cars, and 20 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)? 1 students (b) How many students do

*asked on April 14, 2013* -
## math

Write each ratio as a fraction in simplest form. 1. 3 sailboats to 6 fan boats

*asked on November 6, 2012* -
## 4th grade math

Find the mystery number. It is a 4 digit odd number. All the digits are different. None of the digits are 0 or 9. The tens digit is twice the ones digit, and the hundreds digit is twice the tens digit. The thousands digit is one less than the hundreds

*asked on September 19, 2012* -
## statistics

You intend to estimate a population proportion with a confidence interval. The data suggests that the normal distribution is a reasonable approximation for the binomial distribution in this case. While it is an uncommon confidence level, find the critical

*asked on July 26, 2017* -
## Math

Two bus services A&B arrive at the station. service A arrives every 15 minutes, service B arrives every 20 minutes. The first bus arrives at 8 o'clock. When will both buses arrive at the station again?

*asked on September 21, 2016* -
## Precalculus

Dr. Black is standing 20 feet from a streetlamp. The lamp is making his shadow 5 feet long. He estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 30 degrees. To the nearest foot, the streetlamp is about _____.

*asked on May 26, 2015* -
## TSU

At the beginning of the year, Addison Company's assets are $254,000 and its equity is $190,500. During the year, assets increase $80,000 and liabilities increase $44,000. What is the equity at the end of the year?

*asked on January 17, 2014* -
## math

A couple plans to save for their child’s college education. What principal must be deposited by the parents when their child is born in order to have $100,000 when the child reaches age 18? Assume the money earns 4% interest, compounded quarterly.

*asked on November 15, 2013* -
## accounting

Discuss how the net promoter score is calculated. Show an example of a calculation of a net promoter score (use the data below). What does this score mean specifically in this example? Discuss how the net promoter score can assist in the value of a

*asked on May 18, 2013* -
## geometry

if the midpoints of the sides of a parallelogram in succession are joined, the quadrilatral formed is a a parallogram. Prove this theorem in euclidean geometry using analytic techniques

*asked on April 4, 2013* -
## Education

How do adolescents' socialization experiences differ in urban and rural communities? How are such differences declining over time, and why?

*asked on January 18, 2012* -
## pre calculus 2

use the fundamental trig. Identities to simplify tan^4x+2tan^2x+1

*asked on July 24, 2011* -
## chemistry

Assuming that the volumes are additive, what volume of water must be added to 35.0mL of 23.0 M HCl to make a solution which is 3.00 M?

*asked on April 13, 2011* -
## language arts

is this sentence correct -- Andrew forgot his lunchbox at school everyday.

*asked on February 17, 2011* -
## accounting

"Harris Company manufactures and sells a single product. A partically completed schedule of the company's total and per unit cost over the relevant range of 30,000 to 50,000 per units produced and sold are: United produced and Sold: 30,000 ; 40,000; 50,000

*asked on June 3, 2010* -
## intermediate algebra

A business executive bought 40 stamps for $13.68. The purchase included 37 cents stamps and 23 cents stamps. How many of each type of stamp were bought?

*asked on September 27, 2007* -
## math - algebra

When solving equations by adding integers, what does it mean when one number is in parenthisis? Do you do something different when they are in parenthisis? Example below: 36 + (-28) + (-16) + 24 = y Thank you Numbers in parenthesis means the number is what

*asked on August 18, 2006* -
## physics

The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 89 km/h. (a) Determine the cheetah's average acceleration during the

*asked on November 21, 2019* -
## Math

The temperature in Amarillo is 74 degrees and is increasing at a rate of 2 degrees per hour. In Houston, it is 68 degrees and increasing 4 degrees per hour. Write an inequality to find how long it will take for the temperature in Houston to exceed the

*asked on November 7, 2018* -
## Contemporary Mathematics

A long year-end status report for work is 131 pages long. You need to print 13 copies for a meeting next week. How much is the paper going to cost for those reports? Paper is sold in reams (500 pages) for $3.97 each.

*asked on September 27, 2017* -
## Geometry

What is the most precise classification of the quadrilateral formed by connecting the midpoints of the sides of the isosceles trapezoid?

*asked on February 13, 2017* -
## Algebra II

The sum of the reciprocals of two consecutive positive integers is 17/12. Write an equation that can be used to find the two integers. What are the integers?

*asked on May 25, 2016* -
## Math

A 12-ft. board is cut into 2 pieces so that one piece is 4 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.

*asked on April 21, 2016* -
## statistics please help!

If 3 cards are drawn with replacement from a shuffled deck, what is the probability that at least one of them will be a heart

*asked on February 25, 2016* -
## math 2

a bag contains 8 blue marbles 6 red marbles and 4 green marbles .What is the probability of selecting a blue marble, replacing it in the bag and then selecting a red marble ?

*asked on June 25, 2015* -
## Statistics

Pop. Mean =87 Standard deviation=8 Sample size=64

*asked on February 2, 2015* -
## statistics

candidate #2 received 32% of the votes and candiate #3 received 14% of the votes, WITH a 6 % margin of error. what does this information tell us about the popularity of the candidates? 5

*asked on December 10, 2014* -
## Science

Is air a good radiator, insulator, conductor or convector of heat? If three metal spoons are on a table and each at room temperature, what will happen if they touch?

*asked on October 11, 2014* -
## Integrated Trig

How many years will it take for an initial investment of $5,000 to double if it is invested at a rate of 3% compunded continuously? Compounded annually?

*asked on April 28, 2014* -
## biology

What is a description of the Amazon rain forest—definition of rain forest; characteristics ; location and size of the Amazon rain forest

*asked on April 28, 2014* -
## microeconomics

charlie loves watching teletubbies on his local public tv station,but he never sends any money to support the station during its fundraising drives.

*asked on December 7, 2013* -
## Math

7/12 x 36 =

*asked on October 3, 2013* -
## Math

13/15 - 2/3 =

*asked on October 3, 2013* -
## Math

What is the future value of $800 invested for 14 years at 11 percent compounded annually

*asked on June 17, 2013* -
## Math

The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability that a score is more than 890.

*asked on May 21, 2013* -
## Math

What is the net price of each Natureland Garden Center lawn mower?

*asked on May 20, 2013* -
## Math

Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount?

*asked on May 20, 2013* -
## Math

After a 15% pay raise, Scott Walker now earns $27,600. What was his salary before the raise?

*asked on May 18, 2013* -
## Math

Convert 3¾ % to a decimal.

*asked on May 18, 2013* -
## chem

how many calories of heat energy are required to warm 250ml of water from 35 degrees celsius to 64 degrees celsius?

*asked on April 1, 2013* -
## algebra

Convert the credit card rate to APR , Oregon, 2 1/4 per month

*asked on March 6, 2013* -
## geometry

It was stated that

*asked on February 20, 2013* -
## stats math

Suppose you are selling raffle tickets for $3.00 each. You have the following prizes.1 grand prize of $150 1 prize of $75 1 prize of $50 1 prize of $25 5 prizes of $10 each A total of 500 raffle tickets are sold. What is the expected value of each ticket?

*asked on November 26, 2012* -
## Psychology

One common aspect of among dissociative disorder is:

*asked on August 20, 2012* -
## Math

it takes Lucy 7 minues to cut a 20 yard by 1-yard roll of fabric into 14 equal pieces. How many minutes would it ake her to cut the fabric into 25 equal pieces?

*asked on February 12, 2012* -
## ece

can someone help me with this please!!! only serious peoples need to apply with no nonsense negative people. 1. two important factors to consider when making a music selection are variety and a.quantity b.quality c.mood d.rhythm 2.the best means of helping

*asked on January 9, 2012* -
## physics

Two objects of mass 1.00 × 103 kg each are a distance of 4.00 m from each other. If the center of one mass is regarded as being at the origin of the x-axis, and the other is centered at 4.00 m along the x-axis, what is the magnitude of the gravitational

*asked on December 7, 2011* -
## pre cal 2

Find all solutions in the interval [0, pi], 2sec^2x+tan^2x-3=0

*asked on July 24, 2011* -
## Statistics

Use the Empirical Rule to find what two values 95% of the data will fall between for a data set with a mean of 294 and standard deviation of 13.

*asked on May 16, 2011* -
## Physics

The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth

*asked on April 6, 2011* -
## Physics

The Hubble Space Telescope orbits the Earth at an approximate altitude of 612 km. Its mass is 11,100 kg and the mass of the Earth is 5.97×1024 kg. The Earth's average radius is 6.38×106 m. What is the magnitude of the gravitational force that the Earth

*asked on April 6, 2011* -
## Statistic

Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest of variation. Explain how you produced your answer. a) 17 29 12 16 11 b) 22 18 23 20 17

*asked on January 31, 2011* -
## critical thinking

The reason the auto industry is such a mess is the outrageous union contracts that the automakers are burdened with. Fallacy Type: Why it is this fallacy type: Resource that describes this fallacy type:

*asked on February 21, 2010* -
## soc 101

Imagine a society in which there are no social classes- no differences in people’s wealth, income, and life chances. What would such a society be like? Would it be stable or would its social structure change over time? How could you apply Max Weber’s

*asked on December 16, 2009* -
## chemistry

this is for a lab - determining the chemical formula of a hydrate. suppose the hydrate was heated too quickly and some of it was lost of spattered out of the container. explain how hthis would effect a) the calculated percent by mass of water in the

*asked on October 27, 2009* -
## Business Writing

Ø In what ways are purpose, audience, tone, and content different for interpersonal and business communication? Provide specific examples to support your answer.

*asked on October 19, 2009* -
## precalculus

1-2sin^2(theta/2)=2cos^2(theta/2)-1

*asked on September 23, 2009* -
## intermediate algebra

A total of 26 bills are in a cash box. Some of the bills are one-dollar bills, and the rest are five-dollar bills. The total amount of cash in the box is $50. Find the number of each type of bill in the cash box.

*asked on September 27, 2007* -
## science

what is mutaualism? how has it affected the existence of clown fish and sea anemone? I think mutualism is where two species live in an ecosystem where they interact with each other and one gains something from the other like a bug cleaning a animal and in

*asked on November 30, 2006* -
## algebra

bobs

*asked on March 12, 2020* -
## math

how do I divide fractions

*asked on October 19, 2018* -
## physics

Roger tosses a ball straight upward at v. Ignore air drag?

*asked on September 20, 2018* -
## Probability of Compound Events

Mr. Challenger randomly selected two apples without replacing the first apple from a crate containing 10 green apples, 14 red apples, and 18 yellow apples. What is the probability that he selected a yellow apple first and a green apple second?

*asked on February 1, 2018* -
## Social Studies

why were the islands shown on this map most likely acquired or annexed by the united states?

*asked on May 12, 2017* -
## Chemistry - Gravimetry

If 0.8000 g of a mineral yields 0.2400 g of NaCl + KCl, and this mixture contains 58.00% of Cl, what is the percentage of Na2O and K2O in the mineral? I already tried solving it and I got 12.69% Na2O and 3.84% K2O. However, I checked the answer key and the

*asked on March 6, 2017* -
## Physics

At what altitude above the Earth's surface is the gravitational field strength equal to g/7? .981 = -(1.0003322(6,371/6,371+h))^2)

*asked on November 2, 2016* -
## Chemistry

A lead fishing weight cotains 0.12 mol of lead atoms. What is its mass?

*asked on October 10, 2016* -
## algebra

In 2020 a city's budget is projected to be $3131 million. This is approximately StartFraction 14 Over 3 EndFraction 14 3 of the 2000 budget. What was the city's budget in 2000?

*asked on September 13, 2016* -
## liberal arts math

A population of 240 animals decreases at an annual rate of 10%. Find the multiplier for the rate of exponential decay.

*asked on September 8, 2016* -
## Algebra

The function g(t) = 2t represents the number of guitar lessons, g(t), you can compete in t months. How many guitar lessons can you complete in 7 months? Provide your conclusion as a complete sentence. thanks for help

*asked on May 30, 2016* -
## Algebra II

Given the triangle below, find sec X, tan X, and cos X in fraction form. *right triangle, hypotenuse goes from top right to bottom left, bottom side is longer than top side. Top right point is z, left point is X, bottom right angle (the right angle) is Y.

*asked on May 26, 2016* -
## Algebra II

In triangle ABC, C is a right angle. Side c=9 and side a=5. What are the measures of the remaining sides and angles, in degrees, of the triangle? Round answers to the nearest hundredth if needed.

*asked on May 19, 2016* -
## Math

(33 +19)2(33+19-1)

*asked on April 25, 2016* -
## Math

(2)(33)(19)[2(33)(19)-33-19]

*asked on April 25, 2016* -
## Math

A 12-ft. board is cut into 2 pieces so that one piece is 4 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces 12ft-x=3x+4 12ft- x-3x=4ft 12ft-4x =4ft -4x=-8ft x=2ft

*asked on April 21, 2016* -
## Statistic

If p=.0059538866 critical value is 3.72 is p greater than cv

*asked on April 17, 2016* -
## Chemistry

On Mars, the gravitational acceleration (g) is equal to 3.7 m/s2. Imagine the experiment from our lab performed on Mars, using a distance of 68 m from the catapult to the bucket. What velocity would you need to launch the ball into the bucket?

*asked on April 13, 2016* -
## Statistic help

What do I do in correlation question. Indications of where the relationship is linear showing cv?

*asked on March 30, 2016* -
## Statistic II

Correlation problem Y=ax+b A=1.059398484 B=27.23752342 R2=.2552814508 R=.5052538478 Cv=.4438 chart 20-2=18 row table 0.05 Not linear 25.5% Mean=435 This is my answer from information up top

*asked on March 27, 2016*