# Kate

Newest questions and responses by Kate-
## Physics

A brass is 2m long at a certain temperature.what is it’s length after a temperature rise of 100k if the expansivity of brass is 18x10-6k-1

*asked on December 27, 2018* -
## algebra

A number n is multiplied by 5/8. The product is subtracted by 2/3. The result 7/12, what is n.

*asked on December 14, 2018* -
## pre-algebra

24% of (w) is 3.6. What is (w).

*asked on December 11, 2018* -
## algebra

find 33 1/3% of p is 19. what is p?

*asked on December 10, 2018* -
## pre-algebra

Find 66 2/3% of 87.

*asked on December 10, 2018* -
## pre-algebra

15% of n is 1050. .15 * n = 1050 n = 7000 is this the correct way of solving it?

*asked on December 10, 2018* -
## Chemistry

Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the reaction, CO2(g) + 2 NH3(g) --> CO(NH2)2 (s) + H2O(g). A scientist has 75g of dry ice to provide the carbon dioxide. If 4.50L of ammonia at 15C and a pressure of

*asked on October 30, 2018* -
## chemistry

A sample of dolomitic limestone, with a mass of 0.8020 g, is reacted with a hydrochloric acid. The mass of carbon dioxide released is 0.3725g. Assuming the sample has a 1:1 mole ratio of MgCO3 to CaCO3, determine the mass of MgCO3 and mass of CaCO3 in the

*asked on October 24, 2018* -
## Math

1) Given 2

*asked on October 14, 2018* -
## maths

use formula v=u +at to find the velocity when the initial velocity is 3m/s, the acceleration is 1.5m/s2, the time is 7 seconds

*asked on October 5, 2018* -
## biochemistry

Given the molecular masses of the following elements: H: 1 Da, C: 12 Da, N: 14 Da, O: 16 Da, which element is the most abundant in Glutamate at pH 7.0 by weight? Question 4 options: 1) Oxygen Nitrogen Hydrogen Carbon

*asked on September 25, 2018* -
## biochemistry

Which of the following amino acids will bind to anion exchange resin at pH 7.0? Question 1 options: Glu Met Tyr Trp

*asked on September 25, 2018* -
## science

Determine the kinetic energy required to throw a 500g ball vertically to a height of 9.20m?

*asked on September 18, 2018* -
## English

In "Two Kinds," why is the daughter at first excited about her mother's ambitions for her?

*asked on September 17, 2018* -
## History

Which analyzes why some historians believe that the federal civil defense administration used propaganda to reduce the general public concerned about nuclear warfare? 1. Historians believe that the FCDA generated reports that underestimated the missile gap

*asked on June 15, 2018* -
## History

which suggest reasons that President Kennedy decided to use US military intervention in Cuba? Multiple choice, select all that apply 1. Cubas Secret US invasion plans were leaked to the press 2. Cuba lies 90 miles from the coast of the United States 3. US

*asked on June 15, 2018* -
## History

Why did President Ronald Regan support funding The Nicaraguan rebels with money made from selling weapons to Iran? 1. The selling of weapons sautéed the nation of you run during the Iran Iraq war while providing economic rubber production to Nicaragua 2.

*asked on June 15, 2018* -
## History

Which option explains why the United States was interested in the internal politics of countries such as Chile and Nicaragua from the 1970s to the 1980s? 1. The United States sought to support right wing factions or otherwise undermine socialist regime’s

*asked on June 15, 2018* -
## History

What were the principle sources of outrage that fueled the protests against the Vietnam War? Multiple answer, select all that apply 1. The violence and murder that occurred at the Altamont violence and murder that occurred at the Altamonte music festival

*asked on June 15, 2018* -
## History

Which identifies points of the agreement between the Soviet Union and other allied powers at the Yalta conference? A) The immediate execution of the highest ranking nazi officials B) The division of Germany into four allied occupation zones C) The

*asked on June 11, 2018* -
## English

Five things considered as media in journalism?

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

The driver of a 1.00X103 kg car traveling on the interstate at 35.0 m/s slams on his brakes to avoid hitting a second vehicle in front of him, which had come to rest because of congestion ahead. After the brakes are applied, a constant friction force of

*asked on May 27, 2018* -
## Math/Geometry

i need help figuring out how to find the area of this trapezoid. two sides have 8cm, another one has 10cm, and the last one has 16cm. Also, there is a dashed line inside of the trapezoid that is 7cm. A. 8 cm squared B. 62 cm squared C. 84 cm squared ** D.

*asked on April 17, 2018* -
## English

In English, we are doing a turning point project, which is similar to an essay. I need help editing mine and making it more concise.

*asked on April 14, 2018* -
## Psychology

30 Brothers each attend the daily sunset service 4 times a week. Whilst they are all present on Sunday, the numbers present throughout the week varies from day to day. Alan wanted to learn more about the religion. He knew the Brothers were in great demand

*asked on March 6, 2018* -
## math

What does it mean for concavity of the original graph if there is an asymptote in the f'' graph?

*asked on February 19, 2018* -
## calculus

Find the interval on which the curve of y= the integral from 0 to x of 2/(1+3t+t^2)dt is concave up. I asked this question yesterday and I would like to see if someone could check my answer. I got the curve is concave up when x

*asked on February 18, 2018* -
## calculus

Find the interval on which the curve of y= the integral from 0 to x of 2/(1+3t+t^2)dt is concave up. Can someone please explain? I'm so confused about how to find the answer, all I know is if the 2nd derivative is positive then it's concave up.

*asked on February 18, 2018* -
## World History

How do the Crusades and Muslim and Christian accounts of them demonstrate how these two religions resembled each other more than either one resembles Buddhism, during the postclassical period?

*asked on February 2, 2018* -
## Music

What musical term is indicates a chord where the notes are played one after another rather than all together?

*asked on January 31, 2018* -
## math

If you roll a 6-sided die 90 times, what is the best prediction possible for the number of times you will roll an odd number?

*asked on January 28, 2018* -
## Math, algebra, geometry

John Anderson knows that the pizza pipeline charges its customers a certain amount per one topping pizza, plus a fixed price for delivery. The checks that John wrote for the last two deliveries were $17 for two pizzas and $31 for four pizzas. How much

*asked on January 23, 2018* -
## social studies

how is life different now in the European Union (EU) than before it was formed.

*asked on January 21, 2018* -
## Chemistry

(A) calculate the density of NO2 gas at 0.970atm and 35 Celsius. (B) calculate the molar mass of a gas if 2.50g occupies 0.875L at 685torr and 35 Celsius. Answers are 1.77g/L 80.1g/mol

*asked on January 20, 2018* -
## Science

A volleyball is served at the speed of 8.0 m/s at an angle 35° above the horizontal. What is the speed of the ball when received by the opponent at the same height

*asked on January 18, 2018* -
## Math Help

Plssss help mee input Output 1 9 2 12 3 15 Is the relationship linear? Why or why not?

*asked on December 15, 2017* -
## Hard Math

Simplify f+ g/f-g when f(x)= x-2/x+5. And g(x)= x-5/x+2 Choices, A. 2x^2 -29/21 B. 21/2x^2 -29 C. - 2x^2 -29 /29 D. - 29/2x^2-29

*asked on December 14, 2017* -
## Math.!

Simplify f+ g/f-g when f(x)= x-2/x+5. And g(x)= x-5/x+2 Choices, A. 2x^2 -29/21 B. 21/2x^2 -29 C. - 2x^2 -29 /29 D. - 29/2x^2-29

*asked on December 14, 2017* -
## Math

What is the domain of f/g, given f(x)= x+2 and g(x)= x-7? I was told this below, all real numbers EXCEPT 7 But My choices are this, (-infinity,7) U (7,infinity) (-infinity,-7) U (-7,infinity) (-infinity,-2) U (-2,7)U (7,infinity) (-infinity,infinity)

*asked on December 14, 2017* -
## Pre-Cal

What is the domain of f/g, given f(x)= x+2 and g(x)= x-7?

*asked on December 14, 2017* -
## math

Emily has a book with 200 pages , she read 150 pages , what's the percentage of books she read?

*asked on November 10, 2017* -
## Chemistry

Some instruments differentiate individual quanta of electromagnetic radiation based on their energies. Assume such an instrument has been adjusted to detect quanta that have 3.50× 10–16 J of energy. What is the wavelength of the detected radiation? Give

*asked on November 5, 2017* -
## Physics

A block is given an initial velocity of 4.00 m/s up a frictionless incline of angle θ = 21.0°. How far up the incline does the block slide before coming to rest?

*asked on October 12, 2017* -
## Physics

A boat crosses a river of width 164 m in which the current has a uniform speed of 1.3 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 2.4 m/s

*asked on October 9, 2017* -
## Algebra 2

Describe the following functions transformation:g(x)=-f(-2x)+5

*asked on October 4, 2017* -
## Geometry

Given: ∠ABC and ∠CBD are supplementary angles. m∠ABC = 4x + 7, m∠CBD = 2x − 1. Prove: m∠ABC = 123 How do I write this in a two column proof?

*asked on September 30, 2017* -
## Math

Mrs. Fields bought a sapling from a tree farm nursery and observed a linear growth of the sapling over a period of 6 months. She found the height of the sapling, H centimeters, and the time, t months is related by the linear equation H=2(4+3t) a) write an

*asked on September 27, 2017* -
## Chem Help PLEASE

A pediatrician prescribes the antibiotic amoxicillin to treat a child suffering from an ear infection. The prescribed dose is to be 72.1 mg of drug per kilogram patient body mass per day. The drug is to be administered twice each day in the form of a

*asked on September 20, 2017* -
## Math

1. write an algebraic expression for the word phrase: the quotient of r and 12. A.r*12 B.r/12 C.r-12 D.r+12

*asked on September 15, 2017* -
## Math

A rectangular glass tank is half filled with water. The measurements of the tank are 30cm in height, 25cm in length and 20cm in width. How many litres of water will raise the water level in the glass tank by 5cm?

*asked on September 12, 2017* -
## English

Why does Yoni think the Arab he finds is perfect for his film? It was in Bethlehem, actually, that Yonatan found his Arab, a handsome man who used his first wish for peace. His name was Munir; he was fat with a big white mustache. Superphotogenic. It was

*asked on September 8, 2017* -
## English

Which details help you more fully understand Yoni's character and intentions? Evaluate the line, “No prep, no plotting, natural as can be…” Lines with answer: "It was genius, Yoni was sure. And, if not, at least it was cheap. All he needed was a door

*asked on September 8, 2017* -
## math

Find P if I=122; R=5 1/4% and T=9 months.

*asked on August 2, 2017* -
## Calculus

Give an example of a function that is integrable on the interval [-1,1], but not continuous on [-1,1]. Explain.

*asked on July 12, 2017* -
## SPANISH

El futuro con ir + a + infinitvo- How do I do this sentence in spanish? Yo no__________ hacer gimnasia. Thanks!

*asked on June 27, 2017* -
## Chemistry

"Hi there! So I have a chemistry project due in a few hours. I need to find the molar mass of a specific antacid tablet, but all I know is that the tablet is made up of 550mg CaCO3 and 110mg Mg(OH)2 I also know that the tablet has a mass 1.35g. How do I

*asked on June 19, 2017* -
## Calculus

if a penny is dropped from the top of a 320 ft. building, how fast will it be moving when it hits the ground? So we can find the speed of the penny as instantaneous rate of change of height of penny when it hits ground. Instantaneous rate of change of y

*asked on June 7, 2017* -
## Calculus

if a penny is dropped from the top of a 320 ft. building, how fast will it be moving when it hits the ground? v2 = u2 + 2gH, Here, u = initial velocity = 0 v = final velocity g = 32ft/s2 H= 320ft So, v2= 0 + 2 × 32 × 320 or,. v = ✓(2×32×32×2×5) or,

*asked on June 7, 2017* -
## math

Two ship P and Q left a port R at the same time.Q sailed on a bearing of 150 while P sailed on the north side of Q.After a distance of 8km and 10km by P and Q respectively,their dirtance part was 12km.find the bearing of P from R.

*asked on May 28, 2017* -
## Spanish

Mucha gente prefiere (lavarse) los dientes antes de desayunar. How to I conjugate the word lavarse? I thought it was se lavan but I got it wrong. Thanks for the help!

*asked on May 23, 2017* -
## Math

The function T(h) = 144 – 0.003h represents the Temperature, T(h), at a height h on a mountain. Which of the following statements best describes the slope?

*asked on May 19, 2017* -
## biochem

Two samples of double-stranded DNA have been prepared. Nucleotide analysis reveals that sample 1 is found to be 21% A, while sample 2 is 26% G. Knowing this, which of the following statements is true? Sample 1 has a higher AT content than Sample 2. Sample

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

Two teams, the Exponents and the Radicals, square off in a best of 5 math hockey tournament. Once a team wins 3 games, the tournament is over. The schedule of the tournament (for home games) goes: E-R-E-R-E If the Exponents are playing at home, there is a

*asked on April 19, 2017* -
## Math

Sally wants to build a fence around her pool. The pool is 26 feet long by 21 feet wide.The fence is to be 15 feet from the edge of the pool. a.What are the outside dimensions of the area surrounding the pool? b. how many feet of fencing will sally need? 41

*asked on April 14, 2017* -
## Math

Sally wants to build a fence around her pool. The pool is 26 feet long by 21 feet wide.The fence is to be 15 feet from the edge of the pool. a.What are the outside dimensions of the area surrounding the pool? b. how many feet of fencing will sally need? 41

*asked on April 14, 2017* -
## science

would all of the lead (ii) bromide (ksp = 6.3 x 10^-6) dissolve if 2.25 g is added to 500 mL of water

*asked on March 27, 2017* -
## math

You invested money into two funds. Last year,the first fund paid a dividend of 8% and the second a dividend of 5%, and you received a total of $1330. This year, the first fund paid a 12% dividend and the second only 2% and you received a total of $1500.

*asked on March 22, 2017* -
## Social Studies

(Can you please check my answers)one major landform that is found in both united states and canada is A. The Kilauea Volcanos B. The Rocky Mountains (C.) The Great Basin D. Mount Logan 2 Why are the Great Lakes important to both the United States and

*asked on March 22, 2017* -
## Language art 4th grade

What is the best way to combine sentences 7 and 8? (7)We got a few dog snacks from Jenny's dad. (8) we started giving snacks to the dog. Answer choices:- a. We got a few dog snacks from Jenny's dad and then we started giving snacks to the dog. b. We got a

*asked on March 16, 2017* -
## math

sector 2 on a spinner is a 90 digrese (sorry for spelling) sector. if the spinner is spun twice, what is the probability that it will stop in sector 2 both times?

*asked on March 10, 2017* -
## ELA

“I want to make sure we use all our talent. Not just 25 percent. Don’t let anyone rob you of your imagination, your creativity, or your curiosity. It’s your place in the world; it’s your life. Go on and do all you can do with it, and make it the

*asked on March 9, 2017* -
## History

Why was it important for licoln to wait to issue the Emancpation Proclomation? A. It could have caused revolts in the North B.It was important to have popular support beforehand**** C. It could have ended the rebellion before union victory D. it may have

*asked on March 1, 2017* -
## chemistry

With reference to collision theory account for the colour change that occurred when HCl was added to K2CrO4 (Cromate)

*asked on February 19, 2017* -
## Math-Statistics

CAN SOMEONE HELP ME WITH THIS? A recent study found that, of the 1771 participants aged 12 to 19 in the National Health and Nutrition Examination Survey, 19.5% had some hearing loss (defined as a loss of 15 decibels in at least one ear). This is a dramatic

*asked on February 15, 2017* -
## physics

The distance between two successive crests of a certain transverse wave is 1.13 m. 20 crests pass a given point along the direction of travel every 18.6 s. Calculate the wave speed. Answer in units of m/s. So far I have gotten 1.22 for my answer by 20/18.6

*asked on February 5, 2017* -
## History

Which of the following best describes why sit-down strikes resulted in success for workers? A Owners lost more money the longer strikers occupied the factories. B The strikes forced workers to agree to management’s terms. C The strikes allowed workers to

*asked on February 3, 2017* -
## Algebra II

Find the equation of the line that passes through the points (1,4) and (2,-8). Question options: y = -3x + 9 y = 6x + 5 y = -12x + 16 y = 12x - 8 < this one is wrong.. I thought I had it right so how do I find the correct answer? i'm not getting any of the

*asked on February 1, 2017* -
## Algebra II (plz)

Find the slope of the line that contains the two points (3,2) and (1,-4). m = - 3 m = - 1/3

*asked on February 1, 2017* -
## Algebra

Find the slope of the line that contains the two points (3,2) and (1,-4). m = - 3 m = - 1/3

*asked on February 1, 2017* -
## Algebra (check answers plz)

Find the slope of the line that contains the two points (3,2) and (1,-4). m = - 3 m = - 1/3

*asked on February 1, 2017* -
## math

John earn scores of 82%, 74%, and 78% on three mid-term tests in his Math course. To earn a B, his overall course mark needs to be at least 80% and less than 90%. The overall course mark is 1 3 (mid-term average) plus 2 3 of the final examination. In what

*asked on January 30, 2017* -
## Algebra

spencer deposit 540 in a bank account that pays annual simple interest rate of 4.5%. How much interest will he earn after 3 years? a.about $73.00 b.about $7,290.00 c about $126.00

*asked on January 26, 2017* -
## Algebra

What is the value of (fog)(-5) f(x)=x-10 ; g(x)=x2-3 a. (fog)(-5)= -38 b. (fog)(-5)=12

*asked on January 26, 2017* -
## English

Can someone help me come up with the a central theme for sonnet 15? PLEASE and also help me find a modern version of sonnet 16 by Elizabeth B.

*asked on January 12, 2017* -
## English

Hello can someone help me come up with the central theme for sonnet 15 and 27 by Shakespeare and lastly sonnet 27 by Elizabeth Barrett... please and thanks!

*asked on January 11, 2017* -
## Math

Triangle LMG has side lengths of 7cm, 24 cm, and 25 cm. Which type of triangle is LMG? a.right

*asked on January 9, 2017* -
## science

did anyone do the lab for product that conserve resources unit 4 lesson 5

*asked on January 7, 2017* -
## electrochemistry gr 12

Using the following spontaneous reactions, classify the 3 metals involved (Cr, Sn, Al) according to increasing reductant properties. a) 2Cr + 3Sn2+ ----> 2Cr3+ + 3Sn b) Al + Cr3+ ----> Al3+ + Cr

*asked on January 4, 2017* -
## electrochemistry gr 12

Will there be a reaction is a magnesium strip is placed in a solution containing Ca2+ ions?

*asked on January 4, 2017* -
## science

the body system responsible for the exchange of gases between the body and the enviroment is the

*asked on January 3, 2017* -
## Math

Ms Rowe needs to make a box to hold 729 cm^3. She needs the box to have a lid. What are the dimensions of the box that would minimise the surface area?

*asked on December 15, 2016* -
## Math

what is the measure of the angle of an arc that is 25 cm long with a radius of 7?

*asked on December 13, 2016* -
## art

My internet is down for my computer and I can only use data. I can't go back for my notes 1. This drawing was made using what natural resource? (1 point) A. harvesting the clay from a corn plant B. making the clay from water and pigments C. making the clay

*asked on December 6, 2016* -
## Calculus

Evaluate ∫tan(3x)dx

*asked on November 22, 2016* -
## Calculus

Evaluate ∫√(x^3+1)dx

*asked on November 22, 2016* -
## Fibonacci Sequence

The sequence < un > is defined by the recurrence Un+1 = 3Un+1\5Un+3 initial condition of u1 = 1: Need to show un in terms of Fibonacci / Lucas numbers

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

The sequence < un > is defined by the recurrence Un+1 = 3Un+1\5Un+3 initial condition of u1 = 1: Need to show un in terms of Fibonacci / Lucas numbers

*asked on November 16, 2016* -
## Science

Four students dissolved 30g of salt in a 200ml solution of water.Each student heated his or her water solution to a different temperature ( Marcus had 10 and tyra had 25 Luis had 50 and Andrew had 75) which student most likely had the solution with the

*asked on November 9, 2016* -
## 4th grade math

a 4 digit whole number is added to a 2 digit whole number. there is a largest possible sum and a smallest possible sum. what is the difference between those two sums?

*asked on November 8, 2016* -
## Calculus

A carpenter wants to make an open-topped box out of a rectangular sheet of tin 24 inches wide and 45 inches long. The carpenter plans to cut congruent squares out of each corner of the sheet and then bend the edges of the sheet upward to form the sides of

*asked on November 8, 2016*