# Holly

Newest questions and responses by Holly-
## astronomy

Earth is spinning at 1670 km/h at the equator. Use this number to find Earth’s equatorial diameter.

*asked on January 22, 2019* -
## social studies

1.Which is an effect of deforestation? A. soil erosion B. air pollution C. water pollution------- D. earthquakes 2. Which of the following is a reason so many people have migrated from Middle America to other regions? A. They dislike the region's climate.

*asked on November 7, 2018* -
## Maths

How much would weekly repayments be on a credit card with balance of $1000 and interest rate of 13.5%

*asked on October 29, 2018* -
## English

If you want information about the link between heroin addiction and prescription drugs, including painkillers, which combination of search terms would give you the best results? (They are talking about if you search up the terms in ENCORE) Heroin addiction

*asked on October 12, 2018* -
## Vectors

How much work is done by the orderly pushing a 85 kg person up a 5 m ramp inclined at an angle of 15° to the horizontal? I did W = (85)(9.8)(5)cos15, but to get the correct answer you are supposed to use (85)(9.8)(5)sin15 instead. Why do we have to use

*asked on June 7, 2018* -
## physics

A box weighing 890N is pulled along a horizontal surface by means of a string which is at 30o above the horizontal. If the coefficient of kinetic friction is 0.2 and the box is accelerated at 0.8 m/s2, what is the tension in the string

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

Find the values of the variables. [-12 -w^2] = [2k -81 2f 3 -14 3 Please help me. I don't know how to do this at all, and can you show your work so I can understand better. Thanks

*asked on November 16, 2017* -
## science

how does a grassland follow conservation of mass

*asked on November 9, 2017* -
## Maths

There are 40 children on a bus, there are 12 more boys than girls, how many girls are there on the bus?

*asked on August 22, 2017* -
## programing

create an algorithm, flowchart, and pseudocode for a solution of the following problem. This solution will include the use of arrays needed to complete all parts of the logic. You have requested to develop a program that will record and process the

*asked on April 26, 2017* -
## computer science

create an algorithm, owchart, and pseudocode for a solution of the following problem. This solution will include the use of arrays needed to complete all parts of the logic. You have requested to develop a program that will record and process the rainfall

*asked on April 26, 2017* -
## physics

a bird flies 3km west and then 4km south. find the resultant displacement of the bird

*asked on February 9, 2017* -
## physics

a cyclist travels 2.5km east, then 10km south and finally 5km west. determine the cyclist's overall displacement from their starting point.

*asked on February 9, 2017* -
## chemistry

1. based on the equation below, how many liters of water can be produced from 8.5 L (assume that hydrogen is in excess) 2H2(g)+O2(g) --->2H2O(g)

*asked on February 7, 2017* -
## School

Who is Jean Kessner?

*asked on January 23, 2017* -
## Physics

A catapult of a spring constant 100N/M contains 2.0J of elastic potential energy when it is pulled back. What is the extension of the rubber band? I know that E= F/K but I don't know how to work out the force from the information provided, help would be

*asked on November 25, 2016* -
## Physics

A particle moving at a velocity of 4.8 m/s in the positive x direction is given an acceleration of 3.4 m/s2 in the positive y direction for 4.4 s. What is the ﬁnal speed of the particle? Answer in units of m/s.

*asked on October 11, 2016* -
## Math

Let f(x) be a cubic polynomial function such that y=13(x-1)+4 is tangent to the graph of f(x)at (1, 4) and y=(x+1)+6 is tangent to the graph of f(x) at (-1, 6). Find the equation of f(x)

*asked on October 4, 2016* -
## math

each letter in the following problems represents a different number 0 + 9. letters remain constant witin the problems. can you figue out what number each letter represes? he + me = we

*asked on September 17, 2016* -
## English

What are the subject verb and object of this sentence. Paralegal must have good ethics.

*asked on September 11, 2016* -
## Maths

Q) ABC is an isoceles triangle in which a=150cm, b=c= 249cm. Find the size of each angle of the triangle, correct to the nearest minute. I have drawn a triangle but don't know where to proceed from here? ty in adv.

*asked on August 19, 2016* -
## Chemistry

Identify the compound and classify its functional group in the image H H H H H H H-C-C-C-O-C-C-C-H H H H H H H

*asked on June 1, 2016* -
## Chemistry

What is the oxidation number for each atom in NH4F? N=+3, H=-4, F=+1 N=-3, H=+1, F=-1*** N=+3, H+1, F=-1 N=-3, H=-1, F=+1

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

What is the reducing agent in the following reaction? 2K + S - - > K2S K S*** K2S None of the above

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

In the reaction of beryllium with fluorine, which atom is oxidized? fluorine beryllium*** neither of them both of them

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

What are transferred in an oxidation-reduction reaction? atoms*** electrons ions protons

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

Iron metal is formed during the reduction of iron(III) oxide: Fe2O3 + 3CO 2Fe + 3CO2 When 29.7 kg of Fe2O3 react with 17.8 kg of CO and 4.5 kg of Fe are recovered, what is the percent yield for the reaction?

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

I need help please. Draw a quadrilateral that is not a parallelogram.

*asked on April 19, 2016* -
## math

$6350 is compounded semiannually at 14% for 12 years. What is the total amount in the compound interest account?

*asked on April 19, 2016* -
## chem

Calculate ΔG° (in kJ/mol) for the following reaction at 1 atm and 25 °C: C2H6 (g) + O2 (g) → CO2 (g) + H2O (l) (unbalanced) ΔGf° C2H6 (g) = –32.89 kJ/mol; ΔGf° CO2 (g) = –394.4 kJ/mol; ΔGf° H2O (l) = –237.13 kJ/mol

*asked on April 10, 2016* -
## Probability and statistics

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.n=22, x=18, p=0.85, q=.15

*asked on March 22, 2016* -
## Math

Find the linear speed of a point that moves with constant speed in a circular motion if the point travels along the circle an arc length = 2178/23 kilometers in time t=11 seconds?

*asked on February 22, 2016* -
## Art

1. Which of the following answer choices contains a metaphor? A. His skin was sandpaper** B. The sun sparkled like a diamond C. She wanted to be like the birds and fly away D. They felt free when they ran across the doors 2. What is a key characteristic of

*asked on February 16, 2016* -
## Math

1. Which property is NOT a characteristic of a parallelogram? A. Opposite sides are not congruent B. All angles are congruent** C. Opposite sides are parallel D. Opposite angles are congruent

*asked on February 11, 2016* -
## physics

A horizontal spring with k = 110 N/m has one end attached to the wall. A 290 g block is pushed onto the free end, compressing the spring by 0.160 m . The block is then released, and the spring launches it outward. Neglecting friction, what's its speed when

*asked on February 9, 2016* -
## Algebra 2

Did I solve these right? 1. f(x)= -3x + 1 g(x)= -4x^2 + x + 2 Find g(f(x) ) -4(-3x+1)^2+(-3x+1)+2 -4(-3x+1)^2-3x+1+2 3-3x-4(-3x+1)^2 3-3x-4+24x-36x^2 =21x-36^2-1 2.f(x)= -2x + 1 g(x)= -3x^2 -x -1 Find (g /f)(x) -3x^2-x-1/-2x+1 3. f(x)=-x +2 g(x)= -4x2 + x

*asked on November 10, 2015* -
## pychology

According to research led by Sarina Saturn, which of the following is predicted by variations of a particular gene on the third chromosome, which influences oxytocin functioning?

*asked on October 6, 2015* -
## Math 7th grade

-0.5167 is this number rational or irrational ? Thank you

*asked on September 9, 2015* -
## Algebra

Using two variables - A carpenter wants to cut a 24-foot board into two pieces so that one piece is 5 times as long as the other. How long should each piece be?

*asked on April 20, 2015* -
## physics

A ball is thrown vertically upward from the edge of a cliff of height 131 m. The initial velocity is 77.7 m/s. how high is the cliff?

*asked on April 14, 2015* -
## Pre-calculus help

I have two problems I am stuck on, if you could show me how to solve the problems it would be much appreciated. 1) Find sin 2x, cos 2x, and tan 2x from the given information. tan x = − 1/6, cos x > 0 sin 2x = cos 2x = tan 2x = 2) Find sin 2x, cos 2x, and

*asked on April 10, 2015* -
## Delete Question

Hi! Is it possible to delete a question I asked since I got it answered? Thanks! Subject: Math Date: Monday, March 23, 2015 Time: 8:27

*asked on March 24, 2015* -
## Math

Directions: Use the following matrix to perform the elementary row operations sequentially. A=[3 2 |8] [5 2 |12] 1.) (1/3) R1 From the original matrix 2.) -5R1+R R2 From matrix in question 1.

*asked on March 23, 2015* -
## Chemistry

What is the molarity of an HNO3 solution if 24.1mL of a 0.250M Ba(OH)2 solution is needed to titrate a 15.0mL sample of the acid? Can you tell me the process to finding this answer?

*asked on March 18, 2015* -
## Science

A sled and rider with a combined weight of 59 kg are at rest on the top of a hill 24 m high. (a) What is their total energy at the top of the hill? (b) Assuming there is no friction, what would the total energy be on sliding halfway down the hill?

*asked on February 25, 2015* -
## algebra

A gym has an enrollment fee of $80 and a $25 fee per month of membership. Write an expression to represent the total cost of m months of membership?

*asked on February 3, 2015* -
## Derivatives

Find derivative of y= x^3(5x-1)^4 I got y'= 2x(5x-1)^3 +16x^2+5x-1 is this right? If not what and where did I go wrong

*asked on November 11, 2014* -
## Math

Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the high temperature for the day is 87 degrees and the low temperature of 63 degrees occurs at 5 AM. Assuming t is the number of hours since midnight, find an

*asked on September 2, 2014* -
## Drama

How is 4.48 Psychosis by playwright Sarah Kane a postmodern drama?

*asked on August 27, 2014* -
## algebra

Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Achieve $225,500 at 8.55% compounded continuously for 8 years, 125 days.

*asked on August 22, 2014* -
## Algebra

Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Achieve $225,500 at 8.55% compounded continuously for 8 years, 125 days.

*asked on August 10, 2014* -
## Algebra

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,900 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the

*asked on August 10, 2014* -
## Public Speaking

Evaluating audience feedback to your speech presentation usually happens: A. before the speech. B. after the speech. C. during the speech. D. in the speech preparation

*asked on April 14, 2014* -
## Physics

Can someone help with the following physics problem? This is the only one I'm having trouble solving. Thanks. A 3.6-m-long ladder leans against a frictionless wall as shown in the figure below. The coefficient of static friction between the ladder and the

*asked on April 13, 2014* -
## Math

What is the multiplicative inverse of 6 1/7? My answer- 16

*asked on April 7, 2014* -
## Math

The volume of the cylinder is 15 cubic inches. If all the dimensions are multiplied by 2.7 what is the new volume? My Answer- 295.245

*asked on April 6, 2014* -
## Math

A triangular prism has a volume of 92 in.³ if all dimensions are multiplied by 1.6 what is the new volume?

*asked on April 6, 2014* -
## Common Core State Exam

I need some tips on dong the best I could do on the common core state exam. Please do the best you can to give tips. And if you know a website that will help me study, please do give it to me. Thank you for all you support and help :)

*asked on April 1, 2014* -
## accounting

Liz Marett is the chief financial officer for Fulton Restaurants. She delivered the following comments in a recent conference call with analysts that follow the company: "20X5 was another excellent year. Net income was a record setting $10,000,000. Food

*asked on March 25, 2014* -
## Human relations

A female doctor attempting to explain to her 27-year-old male patient that his severe acne can be cured with a specific drug, but the side effect of the drug might be that he will be temporarily bald.

*asked on March 19, 2014* -
## Language Arts

Can someone tell me what the simple subject and simple predicates are in this sentence? Thanks Sports fans trade baseball, football, or basketball cards. a. sport fans/trade b. fans/or c. baseball/or d. fans/trade

*asked on March 12, 2014* -
## pre cal

f(x)=2x^2+12x-6 what is the min or max value ?

*asked on January 30, 2014* -
## Math Pre-Cal

When I am giving the point vertex of (1,-1) and another point of (2,2) and i need to put the answere in the form f(x)=ax^2+bx+c how would I go about doing that?

*asked on January 30, 2014* -
## Physics

Friction is usually the killer of efficiency. How does a ramp relate to friction?

*asked on January 19, 2014* -
## Physics

What is one advantage and one disadvantage of using a ramp? Explain in detail.

*asked on January 19, 2014* -
## Physics

What affect does changing the mass of an object on a ramp have on the efficiency of the ramp? Explain.

*asked on January 19, 2014* -
## Physics

Bryan tosses a 75.0 g rock into the lake. The rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it is accidentally thrown straight up? How high above the water will it

*asked on January 16, 2014* -
## Physics

Bryan tosses a 75.0 g rock into the lake. the rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it us accidentally bryan tosses a 75.0 g rock into the lake. The rock leaves

*asked on January 16, 2014* -
## Physics

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O

*asked on January 16, 2014* -
## Physics

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O

*asked on January 16, 2014* -
## Physics

An elevator motor provides 45.0 kW of power while lifting a 2000 kg elevator 35 m. If the elevator contains six passengers of the same mass and it takes 20.0 s to accomplish this task, determine the mass of each passenger. Assume the system is 83 %

*asked on January 16, 2014* -
## Physics

A microwave rated at 1000 W heats a 500 g glass of water from 10 degrees C to 55 degrees C in 2 minutes. Determine the efficiency of the energy transformation.

*asked on January 16, 2014* -
## Physics

A farmer drives a 0.100 kg iron spike with a 2.00 kg sledge hammer. The sledge hammer moves at a constant speed of 3.99 m/s until it comes to rest on the spike after each swing. Assuming all the energy is absorbed by the nail, and ignoring the work done by

*asked on January 16, 2014* -
## Physics

A 599 g piece of silver at 150 degrees C is submerged in 1000 g of water at 5 degrees C to be cooled. Determine the final temperature of he silver and water given Heat capacity of water= 4.18 x 10^3 j/kg degrees C Heat capacity of silver= 2.49 x 10^2 j/kg

*asked on January 16, 2014* -
## Physics

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. How much useful work was done? Thannnkkks :)

*asked on January 16, 2014* -
## Physics

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. A) Calculate the work done in raising the motor B) How much useful work was done? C) What

*asked on January 16, 2014* -
## physics

weight 240N/ area 2cm2=

*asked on January 6, 2014* -
## Chem 101

In a fission reaction, uranium-235 bombarded with a neutron produces strontium-94, another small nucleus, and 3 neutrons. Write the nuclear equation for this reaction.

*asked on December 6, 2013* -
## math

which expression is equivalent to 4*4*4*4*4*4*4*4? Debra has 2/3 of a pound of loose green tea leaves. If she wants to keep one-half of the tea at home and the other half at work, what fraction of a pound will she have at work? 7-5/7= what is (-7) to the

*asked on November 26, 2013* -
## HSM/220

How do I increase a fixed sum by 50% properly?

*asked on October 25, 2013* -
## Calculus Homework

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.01cm thick to a hemispherical dome with a radius of 18 meters.

*asked on October 15, 2013* -
## physics

A piece of wood with mass m = 2.8 kg is held in a vise sandwiched between two wooden jaws as shown in the figure below. A blow from a hammer drives a nail which exerts a force of 440 N on the wood. If the coefficient of static friction between the wood

*asked on October 3, 2013* -
## HSM 220

I need help understanding the categorization of line-item budgets, program budgets, and functional budgets matrix for an organization? Can somebody help me understand where salaries go etc.??

*asked on September 27, 2013* -
## Human Resources Administration

I need help understanding whether salaries are put into all categories of a program budget,line-item budget,and a functional budget matrix?

*asked on September 27, 2013* -
## Math with applications

Find the vertex of 1. F(x)=3(x-c)^2+1

*asked on September 23, 2013* -
## Trigonometry

Find all solutions of 4(cos(x))**2-4 sin(x)-5=0 in the interval (6pi, 8pi) I tried to work it out and got: 4(cos**2x)-4cosx -9 = 0, but I can't figure out what cosx = from there to finish the problem.

*asked on July 31, 2013* -
## Trigonometry

Find all solutions of 4 (cos (x)**2)-1=0 in the interval (6pi, 8pi). (Leave your answers in exact form and enter them as a comma-separated list.)

*asked on July 31, 2013* -
## Trigonometry

Find all solutions of 4(sin(x)**2)-8cos (x) -8 = 0 in the interval (2pi, 4pi). (Leave your answers in exact form and enter them as a comma-separated list.)

*asked on July 31, 2013* -
## trig

Find all solutions of cos (x) + 1/2 sec (x) = -3/2 in the interval (2pi, 4pi) (Leave your answers in exact form and enter them as a comma-separated list.)

*asked on July 31, 2013* -
## Chemistry

Barium carbonate and nitric acid reacts in a double displacement reaction. One of products also dissociates and evolves carbon dioxide. Write the net ionic reaction including the proper use of phase labels for this solution run in aqueous solution. After

*asked on June 24, 2013* -
## physics

A parallel-plate capacitor is formed from two 1.0{\rm cm} \times 1.0{\rm cm} electrodes spaced 2.8{\rm mm} apart. The electric field strength inside the capacitor is 1.0\times10^{6}{N/C}} part a What is the charge (in {\rm nC}) on positive electrode? part

*asked on June 19, 2013* -
## Physics

What is the smallest radius of an unbanked (flat) track around which a motorcyclist can travel if her speed is 25 km/h and the coefficient of static friction between the tires and road is 0.28?

*asked on June 13, 2013* -
## chemist geniuses

3. Describe the subatomic structure of the nucleus, including the structure of each nucleon. Draw a picture. Describe the forces that hold the nucleus together and draw them on your diagram. Explain how beta emission works.

*asked on May 30, 2013* -
## chemistry

Describe what happens in a fission reaction. What is a commonly used isotope in a nuclear fission reactor? Describe how a fission nuclear reactor power plant works.

*asked on May 30, 2013* -
## chemistry

Describe the subatomic structure of the nucleus, including the structure of each nucleon. Draw a picture. Describe the forces that hold the nucleus together and draw them on your diagram. Explain how beta emission works.

*asked on May 30, 2013* -
## chemistry

2.The data in the table show the amount of a 500 g sample of sodium-24 over time. Make a graph of the data (remember to label all axes and title the graph). What is the half-life of sodium-24? Explain how you determined your answer. Sodium-24 decays by

*asked on May 30, 2013* -
## STEVE HELP MATH

53.) 49x-2 = 7Ö 7 a. -5/4 b.5/4 c. 11/4 d. -11/4 79.) 10 E 3n-2 n=4 a. 14+17+20+...+32 b. 28+31+34+...+43 c. 10+13+16+...+28 d. 9+14+17+...+30 66. ln 1 √e a. -√e b. -1/2 c. 1/e d. 1/2 67. Solve: e3x = 8 a. ln 5 b. 3 ln 8 c. ln 8 3 d. ln 3 8

*asked on May 21, 2013* -
## These are my last couple! Please Help In Math.

53.) 49x-2 = 7Ö 7 a. -5/4 b.5/4 c. 11/4 d. -11/4 79.) 10 E 3n-2 n=4 a. 14+17+20+...+32 b. 28+31+34+...+43 c. 10+13+16+...+28 d. 9+14+17+...+30 66. ln 1 √e a. -√e b. -1/2 c. 1/e d. 1/2 67. Solve: e3x = 8 a. ln 5 b. 3 ln 8 c. ln 8 3 d. ln 3 8

*asked on May 21, 2013* -
## Please help, have a couple left!

solve 125=(x^3)/ 1/3 ^-3 a. 7 b. 14 c. 15 d. 9

*asked on May 21, 2013* -
## So confusing! Help Math.

49x-2 = 7Ö 7 a. -5/4 b.5/4 c. 11/4 d. -11/4

*asked on May 21, 2013*