# Posts by Kate

Total # Posts: 2,048

**math**

What is the conjugate of the complex number 5 - 4i?

**math**

Perform the operation and write the result in standard form. 9i - (5 + 3i)

**Algebra**

A teacher's union has negotiated a uniform salary increase for each year of service up to 20 years. If a teacher started at $28,000 and 4 years later had a salary of 37,000, what function wpuld describe the teacher's salary over time? S (n) is the teacher's salary ...

**Drivers Ed.**

Say your car gets 25 miles to the gallon. My destination is about 250 miles away. How many times will i have to fill my car up before I run out if gas?

**social studies**

OMG THE ANSWER IS C ! .. trust me

**math**

Mary has two tanks of fish. If she transfers 15 fish from the larger tank to the smaller tank then the number of fish in the smaller tank will be 5/7 of the number of fish in the large, tank. Given that there are 35 fish in the smaller tank originally, find the number of fish ...

**math**

As part of the 'Learning Journey' program, 73 pupils travelled on two buses, one air-conditioned and one non-air-conditioned, to the Singapore Discovery Centre. Three-fifths of the pupils on the air-conditioned has wee girls. There were 17 boys in the non-at, ...

**math**

The mathematics club in a school has 53 members. 5/7 of the girls members and 3/5 of the boys members are from lower secondary. The total number of lower secondary members is 35. How many members of the club are boys?

**Algebra 1**

A company that produces custom bike license plates spends $5525 per month in building overhead plus $2.50 per license plate. If the plates sell for $5.99, how many plates must the company sell each month before making a profit? Plz help. Thanks?

**Algebra 2**

A single card is chosen at random from a standard deck of 52 playing cards. What is the probability of choosing a card other than a queen or a king?

**check my work**

2.B 4.d

**check my work**

1. Which of the following events happened last? (1 point) the Stamp Act the Intolerable Acts the establishment of the first British colony in the New World the Writs of Assista 2. What is a legitimate government? (1 point) one in which government leaders obtain and keep power ...

**check my work**

thanks can you check another question anwser again

**check my work**

3. Which of the following is an advantage of a presidential government? (1 point) The president is elected independently of the legislature. The president is part of the legislative branch of government. A system of checks and balances increases legislative power. A system of ...

**algebra 2**

You toss a polybutadiene rubber ball 40 feet straight up from ground level. Each time it bounces, it rebounds 2/3 of the distance from which it fell. It continues bouncing indefinitely. How far does it travel before it comes to rest?

**Calculus 1**

Find the limit. lim x->0 (e^(6/x)+8x)^(x/2)

**physics**

. A ball is thrown so that it just clears a 10 feet fence 60 feet away. If it left the hand 5 feet above the ground and at an angle of 60° with the horizontal, what was the initial velocity of the ball?

**PreCalculus**

Farmer Jill needs a new pen for her pet billy goats. She would like the pen to be rectangular and have an area of 30 square feet. Unfortunately for Farmer Jill, as the sun rises, the billy goats have developed the habit of running full speed at the sun; knocking the East side ...

**CHECK MY ALGEBRA 2**

Would it be f(x) = (x-4) / (x-4)(x+2)???

**CHECK MY ALGEBRA 2**

Sorry I actually have one more question. After solving for your equation the vertical asymptote would actually be 2 and not -2?? So can you still help me create the correct equation

**CHECK MY ALGEBRA 2**

Ohhh I see thanks Scott!

**CHECK MY ALGEBRA 2**

Write an equation that would have a hole at x = 4 and a vertical asympote at x = -2. My answer was f(x)= (x-4)/(x+2) If it is not correct can someone please help me solve it and explain it to me? Thanks!

**Physics**

The object is real, inverted, magnified

**Math**

Amy have 69 shells she put them into 8 groups how many shells are there? 8.625

**Math**

Chords line PQ and line RS of a circle meet at X inside the circle. If RS = 38, PX = 6, and QX = 12, then what is the smallest possible value of RX?

**Math**

In triangle ABC, AB = 10, AC = 8, and BC = 6. Let P be the point on the circumcircle of triangle ABC so that angle PCA = 45 degrees. Find CP.

**math**

A cone-shaped glass and a tin can are filled with water. The height of the cone is 12" (12 inches) and it has a radius of 1.5" (1½ inches). The can is 2 inches high and has a diameter of 4 inches. Which container holds more water? How much more water does the ...

**Math- Prob Stat**

The amount of time a student spends completing homework per week their senior year is normally distributed with a mean of 5 hours and a standard deviation of 1.4 A. Find the probability a randomly selected student spends less than 3 hours completing homework B. Find the ...

**Math help!**

5. Replace the ___ with <, >, or = to make a true statement. 7^4/7^2____ 49 < <--------------- > = none of the above multiply the following polynomials. 6. –2r(8r + 5) –16r^2 + 5 <-------------- –16r^2 + 10 –16r^2 – 10r –16r^2 &#...

**Math- Prob Stat**

The probability that a student in this school has a job is 65%. What is the probability that: A. You ask at least 8 people before you find someone with a job? B. You ask at most 4 people before you find someone with a job? C. Between 15 and 29 people in a group of 50 will have...

**Maths**

50

**Math- Prob Stat**

How do you determine if a raffle or casino game is fair?

**Math- Prob Stat**

In a Gallop Poll, 35% 18-23 year old's stated that they believe in ghosts. Find the probability that out of 16 students aged 18-23: A. Exactly 5 said they believed in ghosts. B. Exactly 5 said they do not believe in ghosts. C.Less than 11 said they do not believe in ghosts...

**Math**

Did you find this? I'm taking this test now and am so lost

**Chemistry**

Calculate the standard free-energy change for the following reaction at 25 °C. Standard reduction potentials can be found here. 2Au^3+(aq) + 3Cr(s) <-----> 2Au(s) + 3Cr^2-(aq)

**PreCal**

An airplane is traveling at 575 mph in the direction of S 83 degree W. The wind is blowing at N 35 degree W. What is the actual speed and direction of the plane?

**Life Orientation**

Identify three of human rights violations or discrimination and explain in an itroductory paragraph why you choose the specific human rights violations or discrimination

**Life orientation**

By not giving money to the police when u are given a fine..

**Pre-Calc**

A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 3 mi apart, to be ∠x = 35° and ∠y = 45°, as shown in the figure. (Round your answers to two decimal places.)

**life orientation**

Life orientation

**algebra**

A laptop computer is purchased for $5000 . Each year, its value is 70% of its value the year before. After how many years will the laptop computer be worth $300 or less

**Math**

A farmer has 36 feet of fence to build a pigpen. He is going to use one of the sides of his barn as a side to the rectangular enclosure. Determine a function A that represents the total area of the enclosed region. What is the maximum area that can be enclosed?

**chemistry**

Calculate the concentrations of all species present in a 0.100 M solution of weak polyprotic acid H3PO4. Ka1=7.5 x 10 ^-3, ka2 = 6.2 x 10 ^-8, Ka3= 3.6 x 10^-13 How the heck do I do this

**Math**

>?

**Math**

Kate won a bag of candy at a raffle. She gave 1/5 of the candy to her brother, 1/4 of the candy to her friend, and had 11 pieces left over. How many pieces did she give her Brother?

**Math**

There are 92 band students. For a concert, the stage is divided into four sections. 24 students sit on the left, 36 sit in the middle, 28 sit on the right, and 4 stand behind the others. What fraction of the band sits in the middle?

**Math**

. If there are 1050 students in a school and the ratio of boys to girls is 9:5, then what is the number of boys in the school?

**math**

You order a pizza. The pizza has a diameter of 14 inches and it is cut into 12 equal slices. You eat four slices, how much of the area have you consumed. How long is the remaining crust.

**math !**

what Is it jesse?

**life orientation**

Spectator aggression is triggered by the intense feelings and emotions of the fans who are watching the sports event. When the sporting facilities and venues are not adequate to hold a large number of spectators, fans become irritable and rowdy easily. Fans can easily ...

**sociology**

how does social structure shape individual action?

**chemistry**

How many kilojoules are required to melt 15g of ice at 0 degree celsius, and raise the temperature of the liquid that forms to 85 degree celsius?

**FINANCE**

You have just purchased a new warehouse. To finance the purchase, you’ve arranged for a 35-year mortgage loan for 75 percent of the $3,250,000 purchase price. The monthly payment on this loan will be $15,800. Requirement 1: What is the APR on this loan? (Round your ...

**sphy011**

A football game costumarily begins with a coin toss to determine who kicks off. The referee tosses the coin vertically upwards with an initial velocity of 5m/s and it takes 1.02s for it to be in the air. In the absence of air resistance 1.How high does the coin go above its ...

**psychology**

i need 2 examples of what researchers on the human genome project have already learned a bout the human genome

**Direct variation algebra 2**

If V varies directly as G, and V =36 when G =4. Find V when G =11

**english**

The world we have created Read the saying by Albert Einstein. How do you understand its meaning? Write 100-120 words of explanation. You may also refer to what the other participants write and agree or disagree with their opinion. You may score up to 15 points for your entry...

**algebra**

How do you write the expression for 5 less than the quotient of a number and 2. Here is my answer but the quotient part is confusing me. 5<?+2

**Math**

What are the answers someone plz help!!!!!

**health**

Its D i just interd it and got it right.

**math written assignment help**

by the way this is actually a story problem in my text book so don't get so assuming that it is an assignment. its a simialr single "problem" to one I (figured out on my own thansk for the not so much help).

**math written assignment help**

I wasn't asking somone todo the assignment, i was asking for help on where to start with this problem in the beginning. I was not posting this to cheat, it is easier for the whole thing to be posted to know what it is about. never mind!!!! thanks for the help anyway!!

**math written assignment help**

A’s DJ service charges a $200 setup fee and $75 an hour after that. B’s DJ service charges no setup fee but costs $125 an hour. (4 points) Set up equations for both of the services using x and y. Determine the variables and provide an explanation for why you chose ...

**intro to algebra written assignment help**

dont be so rude!

**intro to algebra written assignment help**

Assume you are throwing a baseball up from the top of a building. The equation for the height of the ball, h, at time, t, is represented by the equation: h=-16t^2+64t+512 (5 points) After how many seconds does the ball reach 560 feet? Explain what your answer means. (5 points...

**math**

Assume you are throwing a baseball up from the top of a building. The equation for the height of the ball, h, at time, t, is represented by the equation: h=-16t^2+64t+512 (5 points) After how many seconds does the ball reach 560 feet? Explain what your answer means.

**Stat**

"Records show that 8% of all college students are foreign students who also smoke. It is also known that 50% of all foreign college students smoke. What percent of the students at this university are foreign?" I had that: P(A)=50 P(B)=? P(A|B)=8

**physics**

1) A 70 kg woman dives from a 2.5 m high diving board. The gravitational field strength is 10 N/kg. Describe whether she gains or loses gravitational potential energy, and calculate the change in gravitational potential energy

**Math**

How much is the total amount if an item costs $8.28 pr pound and they buy 13 1/3 pounds?

**Math**

Thanks to Ms Sue. I wasn't using the fraction correctly.

**Math**

One pound costs $8.28. What is the total cost of 10 1/3 pounds?

**physics**

So what was the answer?

**Physics**

A car, moving along a straight stretch of high- way, begins to accelerate at 0.0377 m/s2. It takes the car 34.3 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s.

**Math**

Please help me with steps to work out the following problem. Simplist way possible. Mary needed different coloured balloons for decoration. She had $1.25 (Australian dollars) and spent it all on a number of white, red, and blue balloons. A white balloon costs $.10, a red one...

**Maths**

Jill spent 40% of her money . If she had €120 left , how much had she at the start ?

**geometry**

Parallel lines in space are coplanar. A. always B. sometimes C. never

**Statistics**

A bag contains 5 purple marbles, 7 yellow marbles, and 3 orange marbles. If two marbles are selected from the bag: What is the probability that an orange then a yellow are chosen with replacement?

**Physics**

A rock is launched off a table horizontally with a velocity of 10 m/s. If the table is 1.5 m above the floor, how long will it take for the projectile to hit the floor? What distance will the rock land in respect from the edge of the table? 2(1.5)/9.8=t^2. T=.553? What is the ...

**precalculus**

For what values of b will the line y=2x+b be tangent to the circle x^2+y^2=9?

**Algebra**

Mary is 15 years older than her niece Katie. In 10 years Mary is two times as old as Katie. How old are Mary and Katie now? How do I solve this (equation + work) Thank you!

**math**

break apart the addends to find the a sum 18+26=

**Math**

a 14.5 gas tank is 3/4 full. How many gallons will it take to fill? Please help me set this up. Thanks!!!

**Simple interest math**

How many years will it take to double an investment if the annual simple interest rate is 5.3%? Round to the nearest 10th.

**Science**

An air mass of 25°C with a dew point of 10°C has a starting elevation of sea level (0 meters) encounters a mountain range with a peak elevation of 3,000 meters above sea level. At what elevation is the Lifting Cloud Level?

**Math**

After 40 spins, Chris landed on red 18 times. What is the experimental probability of landing on red? What is the theoretical probability of landing on red? Right as a fraction in simplest form.

**algebra**

0.957 0.912 0.925 0.886 0.920 0.958 0.915 0.914 0.947 0.939 0.84 mean=

**math**

thank you!!!!!

**math**

smallest to largest

**math**

0.957, 0.912, 0.925, 0.886, 0.920, 0.958, 0.915, 0.914, 0.947, 0.939, 0.84 how do i put these in order

**Math**

89 but if it was .886 wouldn't it be 86 cents?

**Math**

what is greater 0.84 or 0.886

**college algebra**

A worker is exposed to 98 dB for five hours and 82 dB for a three hours, giving an eight hour working day. On average what noise level is this worker exposed to? (round to the nearest whole number)

**Math**

The following points show how many centimeters a bamboo plant can grow (g) and the hours (h) that the plant has been growing. What is k?(g,h) (10,50) (20,100) (50,250)

**Nutrition**

Write equations to show how 2-methyl-1-pentene could be converted to 2-hydroxy-2-methylpentane 1-hydroxy-2-methylpentane

**physics**

A man is standing beneath two rain clouds, equidistant from each cloud, as shown in the figure. Cloud A has an excess of 7.1 104 negative charges while cloud B has 7.1 104 positive charges (where a charge has magnitude e). (a) What is the magnitude of the net electric field ...

**physics**

(2•0.411•9.8•5.22/0.344•8.46)

**physics**

At a carnival, you can try to ring a bell by striking a target with a 8.46-kg hammer. In response, a 0.411-kg metal piece is sent upward toward the bell, which is 5.22 m above. Suppose that 34.4 percent of the hammer's kinetic energy is used to do the work of sending the ...

**physics**

still not right where am I going wrong?