# Posts by Kate

Total # Posts: 2,048

**math **

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

**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 your answer ...

**Math**

i dont know. what is the answer ?

**Physics**

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

**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 relative to the water. ...

**Algebra 2**

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

**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?

**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 equation for t in ...

**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 liquid containing 126.0 mg...

**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

**Math**

2500 cubic centimetres = 2.5 liters. Thanks Steve <3

**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?

**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 moving, the way he ...

**English**

Ok. I think he's cheap, lazy, and loves money?

**English**

I'm not quite sure. That's why I'm asking Reed.

**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 to...

**math**

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

**Calculus**

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

**SPANISH**

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

**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 find the molar ...

**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 with respect to x is dy...

**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×...

**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.

**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!

**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?

**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 1 is 29% T. Sample 2 ...

**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 60% chance they'...

**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 ft by 36 ft; 77ft 41...

**Math**

Thank you sooooo much Mrs Sue! You have been a big help throughout my years of using jiska!!!

**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 ft by 36 ft; 77ft 41...

**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

**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. How much did you invest...

**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 Canada A. They form the ...

**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 few dog ...

**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?

**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 life you ...

**History**

Im sorry i mean B

**History**

I think the answer is C

**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 caused lincoln to lose...

**chemistry**

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

**chemistry**

number of moles = mass/Molar mass N=m/Mr

**Math (Business)**

I haven't don't simple interest in a while so don't quote me on this but I think you're missing the T part of the equation eg. P x R x T = I. rate is 18x31/365, P is ... but where is T in your final equation? hope that was relevant.

**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 increase from a ...

**physics**

That gives me the wrong answer according to the website

**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 x 1.13. I also tried...

**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 form new company ...

**Algebra II**

Thanks Mr.Bob & Mr. Steve.. AGAIN. I honestly need to practice this more obviously but 4 more months till graduation and everyone on here has been helping me since the 9th grade so it's a huge thank you.

**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 other answer ...

**Algebra II (plz)**

Thank you! im sorry.

**Algebra II (plz)**

Find the slope of the line that contains the two points (3,2) and (1,-4). m = - 3 m = - 1/3 <-- ? m = 3 m = 1/3 Find the slope of the line that contains the points (-2, 4) and (-4, 6). m = -1 m = 1 <-- m = - 1/3 m = 1/3 Find the equation of the line that passes through ...

**Algebra **

Find the slope of the line that contains the two points (3,2) and (1,-4). m = - 3 m = - 1/3 <-- ? m = 3 m = 1/3 Find the slope of the line that contains the points (-2, 4) and (-4, 6). m = -1 m = 1 <-- m = - 1/3 m = 1/3 Find the equation of the line that passes through ...

**Algebra (check answers plz)**

Thank you and yes I honestly do... it's hard for me at least but I do try.

**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 <-- ? m = 3 m = 1/3 Find the slope of the line that contains the points (-2, 4) and (-4, 6). m = -1 m = 1 <-- m = - 1/3 m = 1/3 Find the equation of the line that passes through ...

**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 range of values can ...

**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 <-- im not sure d.about $200.00 How do I figure this out?

**Algebra**

ohhh thanks! sorry for posting this question twice.

**Algebra**

Thanks... can you help me with this question also? 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 <-- im not sure. d.about $200.00

**Algebra**

What is the value of (fog)(-5) f(x)=x-10 ; g(x)=x2-3 a. (fog)(-5)= -38 b. (fog)(-5)=12 <--- ? c. (fog)(-5)=222 d.(fog)(-5)= -228

**English**

I didn't get any help.. I read the poem but still can't find the central theme and also I can't find a modern version of sonnet 16 by Elizabeth.

**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.

**English**

Thanks Ms. Sue See I was thinking for 27 that it's when you love someone you can't stop thinking about them? Now for 15 I honestly don't know....

**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!

**Math**

Triangle LMG has side lengths of 7cm, 24 cm, and 25 cm. Which type of triangle is LMG? a.right <--- or b? b.obtuse c.acute d.equilateral Bethel Park is 28 miles directly west of Jeanette and 10.3 miles directly south of Pittsburgh. Which is the length of the road that runs ...

**science **

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

**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

**electrochemistry gr 12**

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

**science**

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

**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?

**Math**

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

**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 by mixing sand ...

**Calculus**

Evaluate ?tan(3x)dx

**Calculus**

Evaluate ??(x^3+1)dx

**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

**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

**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 fastest dissolving rate ...

**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?

**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 the box. If the box ...

**Calculus**

Two sides of a triangle are 4 inches long. What should be the angle between these sides to make the area of the triangle as large as possible?

**Math**

You have a $250,000 mortgage. The 30- year fixed rate is 8.5%. You have had your house for ten years. You have 20 years remaining on your mortgage. The new 15-year mortgage rate is 5.5%. 1) What is your mortgage payment, principal and interest on your current mortgage? 2) What...

**Math**

You have a $200,000 mortgage. You have had the house for one year. The rate is 7.5% fixed for 30 years. Rates have come down and you are thinking of refinancing at the new rate of 6%. 1) What is your mortgage payment and interest on your current mortgage? 2) What would your ...

**finance**

You want to purchase a car. It costs 25,000. You have 3,000 that you have saved up for a down payment. You can go with the 5 year car and 60 month car loan. The car manufacture is offering a special deal on your car. You can get zero percent financing or 2,000 cash back. If ...

**finance**

You have only saved 2,000. You are going to trade in your old car and get a new one. The dealership has offered you 3,000 for your trade, and you have accepted their offer. The car you want to buy costs 23,000 but you talked them down to 21,000. The dealership is offering you ...

**physics**

A 64.8 g drink is left on a turntable causing it to turn with an angular speed of 8.50 rad/s. If the drink has coefficients of friction of μs = 0.890 and μk = 0.500 with the turntable, what is the furthest distance that the drink could have been placed from the ...

**Social studies**

What three features do people use to describe weather and climate

**algebra**

use the identity a^2+b^2=(a+bi)(a-bi) to factor 16y^2+1

**Math**

If one liqid gallon is 231 cubic inches, how many gallons of juice would fit in a container that is 2 ft. by one foot by 1 foot.

**physics**

.034

**Physics**

A driver in a car, originally moving at 13.1 m/s, applies the brakes until the car comes to a stop. The car moves a distance of 34.1 m while braking. How much time did it take for the car to stop? Assume constant acceleration during braking.

**Physics**

A dart is being thrown at a board that is 2.00 m away. When it hits the board it is 0.306 m below the point where it was aimed and it was thrown at 8.00 m/s. How long was the dart in the air?

**check my work**

1. Which of the following provides the best definition of a strict constructionist interpretation of congressional power? (1 point) Congress must have more powers than the states. Congress should only use implied powers when directly connected to expressed powers. Congress ...

**history (check my work)**

would 1. be C

**history (check my work)**

. Which of the following provides the best definition of a strict constructionist interpretation of congressional power? (1 point) Congress must have more powers than the states. Congress should only use implied powers when directly connected to expressed powers. Congress ...

**check my work**

please

**check my work**

1. Which of the following provides the best definition of a strict constructionist interpretation of congressional power? (1 point) Congress must have more powers than the states. Congress should only use implied powers when directly connected to expressed powers. Congress ...

**check my work**

The table below shows your expenses. Use the information in the table to answer questions 13. Expense Type Cost mortgage (monthly) $1,850.00 groceries (biweekly) $113.50 telephone (monthly) $96.80 credit card (monthly) $100.00 car payment (monthly) $389.45 car ...

**check my work**

1.B 3.C

**check my work**

1. Which of the following best exemplifies how Congress’s use of its weights and measures powers plays an important role in business transactions? (1 point) With uniform and consistent standards, producers are allowed to charge different prices for a pound of flour. With ...

**Ss**

Oh, is it B that was wrong.. because i know that people couldn't vote until the declaration of independance .

**Ss**

Which one??

**Ss**

Why was the Declaration of Independance important? Select all that apply. >it set up the U.S government >it explained the ideals of liberty, justice, and equality**** >it announced that American colonies were separate from great britian >it gave Americans the right...