# Posts by Barbara

Total # Posts: 325

**Physics**

Two hockey players on ice skates push off of each other. One has a mass of 60 kilograms. The other has a mass of 80 kilograms. What is the 60-kilogram player’s momentum?

**Math**

I need help with this.The question is Fedinand has a rectangular square garden.The garden is 7 1/2 feet wide.The area of the garden is 150 square feet.What is the length of Ferdinand's garden?Write the division needed for this problem.Do not solve.

**psychology**

In cults, followers trade off ______________ in order to gain ______________.

**physics**

A ball is thrown straight up with enough speed so that it is in the air for several seconds. Assume the positive direction is upwards. What is its velocity 1.5s before it reaches its highest point?What is the change in its velocity, v, during this 1.5-s interval? What is its ...

**Math**

A college class with 30 sophomores, 18 juniors, and 12 seniors is divided into project groups where each group has the same number of sophomores, juniors, and seniors. What is the greatest number of groups that can be formed? How many sophomores, juniors, and seniors are in ...

**math**

Mrs, jones is having a pizza party for 19 students. each pizza will be cut in 6 slices. how many pizzas will Mrs jones need to order?

**common core math**

22+49

**statistics**

Post a null hypothesis that would use a t test statistical analysis.. Use the same hypothetical situation taken in the t test hypothesis, and turn it into a null hypothesis using a one-way ANOVA analysis and a two-way ANOVA.

**algebra**

Harry drove for 6 hours on the freeway, then decreased his speed by 20 miles per hour and drove for 6 more hours on country road. If his total trip was 624 miles, then what was his speed on freeway?

**Financial Math**

(10^4)(26^2)=6,760,000

**math**

WHAT IS THE LATERAL SURGACE AREA OF A RECTANGULAR PRISM WITH THE BASE PERIMETER OF 150 MM AND A HEIGHT OF 5 MM

**math**

How do you determine the dimensions of a rectangular prism that is 10 cubic feet?

**Physical science**

A 11-kg box is dragged across a frictionless surface by a force F=55N. the box travels 4.0ft. what is the work done by the applied force F and the work done by the normal force?

**Penn foster**

Which of the following sentences demonstrates the correct use of capitalizing direction words? The Northeast has been hit with an unusually cold winter. Poor Alex thought he was driving West. i live just South of Scranton. Are you heading East

**Physics**

A ball is thrown straight up at a launch velocity of 15m/s. What is the velocity when it returns to the throwers hand?

**math**

write a integer thatrepresents 59ft tall and the write its opposite

**Math**

Make the following changes to the number 2.614. The 1 is worth one tenth as much. The 4 is worth 10 times as much The 2 is worth one tenth as much Make the 6 worth 10 times as much So I'm not sdure if my answer I'd 6.241 or .6241

**math 210 fundamentals of geometry**

Complete Problem 31 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary.

**english**

i need to know what are the simile's,metaphors, and personifications in A SUMMER lOVE POEM BY NIKKI GIOVANNI CLOUDS FLOAT BY ON A SUMMER SKY I HOP SCOTCH OVER YOU RAINBOWS ARCH FROM GROUND TO GOLD I CLIMB OVER YOU THUNDER GRUMBLES, LIGHTNING TUMLES AND I BOUNCE OVER TO YOU...

**Math**

For each person with the flu there six with only flu symptoms. How many people out of forty would be expected to have only flu symptoms?

**Math**

12

**Psy 326**

Descriptive statisticd

**English**

The correct ask to question is C. I just took the test. I missed this question twice. 1. The library, is the quickest way to locate varied, reliable information for your research paper is to A. check the encyclopedias. B. search the card catalog for related titles. C. ask the ...

**Math**

A pair of dice is rolled, one is red other is green. Find the probability that the sum is 6

**Math**

find the angle θ in the right triangle in the following problem. Round to the nearest degree, if necessary. cos θ = 0.8192 A = 45 H = ?

**math**

A salesperson earned 33,250 on annual sales of 950,000. What is her rate of commission.

**math**

Janice walked around two sides of a square park. The perimeter of the park is 1,200 yards. How many yards did Janice walk? Explain your answer.

**science**

I believe that it is Clear skies and a sea breeze.

**Early Childhood Education**

Lesson Plan for 3 year olds: See If I am doing it correctly. Goal: To teach how to recognize the first and last letter of their names. Objective: The children will identify and name the first and last letter of their names. Standards Include: Georgia Early Learning Guidelines...

**Early childhood education**

Age 4: I miss you, Nana! Behind Michaela's cognitive understanding of her first utterance; she understand some basic rules of grammar. Age 4 yrs., 6 months: I am going to miss you Nana. Michaela is using longer sentences. What additional cognition is revealed. It revealed ...

**Early childhood education**

Consider these two sentences from Michaela: A) Age 4 years: "I miss you, Nana!" (spoken over the phone to her grandmother who had returned home after a visit). B) Age 4 years, 6 months: "I'm going to miss you, Nana" (spoken in person to her grandmother ...

**physics**

At the local grocery store, you push a 14.0-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 12.0N, you now accelerate the cart from rest through a distance of 2.30m in 2.55s. What was the mass of the dog food?

**Physics**

A plane diving with constant speed at an angle of 52.5° with the vertical, releases a package at an altitude of 499 m. The package hits the ground 3.87 s after release. How far horizontally does the package travel?

**Chemistry**

Bromine is a reddish-brown liquid. Calculate its density (g/mL) if 586g of the substance occupies 188 mL.

**algebra**

a car rents for $45 per day plus 21 cents per mile you are on a daily budget of $66 what milage will call you to stay within your budget

**algebra**

A triangle has a perimeter of 112 centimeters, each of the two longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle

**algebra**

A bus was purchased for $70,000, assuming the bus depreciates at a rate of $6,000 per year(straight line depreciation) for the first 10 years, write the value v of the bus as a function of the time t (measured in years) for 0 < t < 10

**math**

320

**math**

A medical researcher wanted to determine the effect of pH (a measure of alkalinity or acidity, with pure water having a pH of 7) on the growth of a bacteria culture. The table below gives the measurements of different cultures, in thousands of bacteria, after 8 hours. pH ...

**disease**

c??

**disease**

________ is the most frequently reported bacterial sexually transmitted disease in the United States. A. Chlamydia B. Syphilis C. Herpes D. Gonorrhea

**algebra**

Q(t) = 5, if 0 ¡Ü t ¡Ü 5 −t + 7 if 5 < t ¡Ü 8 t − 1 , if 8 < t ¡Ü 11 Q(0)=__ Q(x),6< x <7=___ Q(n), 1< n <2 = ___

**algebra**

find the zeros of f:f(x) = 10 − 4x x= ____

**algebra**

A bus was purchased for $80,000. Assuming the bus depreciates at a rate of $6,000 per year (straight-line depreciation) for the first 10 years, write the value v of the bus as a function of the time t (measured in years) for 0 ¡Ü t ¡Ü 10. v(t)= ____

**ALGEBRA**

A(w)= sqrt. w^2 + 13, A(-c)=

**algebra**

A(w)= sqrt w^2+13, find A(r+1)=

**algebra**

A(w) = sqrt. w^2+13, find A(4)=

**algebra**

A boat was purchased for $45,000. Assuming the boat depreciates at a rate of $4700 per year (straight-line depreciation) for the first 8 years, write the value v of the boat as a function of the time t (measured in years) for 0 ¡Ü t ¡Ü 8. v(t) = ____, 0 &...

**algebra**

f(x)=|x+5|; f(a)=9 find smaller value and larger value

**algebra**

sqrt. w^2+13, find A(0)

**algebra**

g(x)=6x^2+7, find g(c+5)=

**algebra**

Find all points on the x-axis that are 10 units from the point (7, 6). (Hint: First write the distance formula with (7, 6) as one of the points and (x, 0) as the other point.)

**math**

the price of a computer fell 20% this year, if the computer now cost $850, how much did it cost last year?

**algebra**

a triangle has a perimeter of 126 centimeters, each of the 2 longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle.

**algebra**

The vendor of a coffee cart mixes coffee beans that cost $8 per pound with coffee beans that cost $4 per pound. How many pounds of each sould be used to make a 60-pound blend that sells for $5.25 per pound?

**algebra**

a motorboat left a harbor and traveled to an island at an average rate of 12 knots, the average speed on the return trip was 10 knots. If the total trip took 8.8 hours, how far is the harbor from the island?

**Physical Science**

A heat pump releases 103.0 kcal as it removes 54.0 kcal at the evaporator coils. How much work does this heat pump ideally accomplish? The answer should be in KJ

**Physicsl Science**

A heat pump releases 103.0 kcal as it removes 54.0 kcal at the evaporator coils. how much work does this heat pump ideally accomplish? Answer should be in KJ

**Math**

A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of $174,900?

**Physical Science**

Why does a glass filled with a cold beverage seem to sweat? a. saturation always results in sweat on wet object. b. the cold glass adjacent air to saturation, which is followed by condensation of water vapor. c. when cold, water molecules can move through tiny pores in the ...

**Physical Science**

A heat engine exhauts 122.0 kal after taking 499.0 how much mechanical work was done by the engine?

**still confused**

The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 144 feet, what is the length? am looking for the length, not the width. Thanks I know the width is 25

**Still confused**

An investment adviser invested $14,000 in two accounts. One investment earned 4% annual simple interest, and the other investment earned 2.5% annual simple interest. The amount of interest earned for 1 year was $458. How much was invested in each account? looking for the ...

**-Math-Desperate**

An investment adviser invested $14,000 in two accounts. One investment earned 4% annual simple interest, and the other investment earned 2.5% annual simple interest. The amount of interest earned for 1 year was $458. How much was invested in each account? looking for the ...

**Correction Please**

The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 144 feet, what is the length? am looking for the length, not the width. Thanks

**MATH**

The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 144 feet, what is the length?

**math**

v=1/3tt^2h

**math**

A new machine that deposits cement for a road requires 13 hours to complete a one-half mile section of road. An older machine requires 15 hours to pave the same amount of road. After depositing cement for 2 hours, the new machine develops a mechanical problem and quits working...

**math**

A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $3.50 per ounce should be mixed with one that costs $7.00 per ounce to make a new 30-ounce alloy that costs $6.30 per ounce?

**math**

A plane leaves Chicago headed for Los Angeles at 520 mph. One hour later, a second plane leaves Los Angeles headed for Chicago at 620 mph. If the air route from Chicago to Los Angeles is 1800 miles, how long will it take (after the first plane takes off) for the first plane to...

**math**

Running at an average rate of 4 meters per second, a sprinter ran to the end of a track. The sprinter then jogged back to the starting point at an average rate of 2 meters per second. The total time for the sprint and the jog back was 2 minutes 6 seconds. Find the length of ...

**math**

An investment adviser invested $14,000 in two accounts. One investment earned 4% annual simple interest, and the other investment earned 2.5% annual simple interest. The amount of interest earned for 1 year was $458. How much was invested in each account?

**math**

A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island?

**math**

The price of a computer fell 20% this year. If the computer now costs $550, how much did it cost last year

**math**

A = P + Prt; P (business)

**math**

v=1/3ni2h

**math**

The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 144 feet, find the width and the length

**math**

A new machine that deposits cement for a road requires 13 hours to complete a one-half mile section of road. An older machine requires 15 hours to pave the same amount of road. After depositing cement for 2 hours, the new machine develops a mechanical problem and quits working...

**math**

A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $3.50 per ounce should be mixed with one that costs $7.00 per ounce to make a new 30-ounce alloy that costs $6.30 per ounce

**algebra**

A new machine that deposits cement for a road requires 13 hours to complete a one-half mile section of road. An older machine requires 15 hours to pave the same amount of road. After depositing cement for 2 hours, the new machine develops a mechanical problem and quits working...

**algebra**

A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $3.50 per ounce should be mixed with one that costs $7.00 per ounce to make a new 30-ounce alloy that costs $6.30 per ounce

**algebra**

The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 144 feet, find the width and the length

**algebra**

A triangle has a perimeter of 56 centimeters. Each of the two longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle

**algebra**

It costs a manufacturer $7.95 to produce sunglasses that sell for $21.99. How many pairs of sunglasses must the manufacturer sell to make a profit of $10,530? 1 pairs of sunglasses

**algebra**

A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island

**algebra**

It costs a manufacturer $7.95 to produce sunglasses that sell for $21.99. How many pairs of sunglasses must the manufacturer sell to make a profit of $10,530

**algebra**

An investment adviser invested $14,000 in two accounts. One investment earned 4% annual simple interest, and the other investment earned 2.5% annual simple interest. The amount of interest earned for 1 year was $458. How much was invested in each account?

**Physical Science**

What is the kinetic energy of a 1850 kg car that is traveling at 58.0 km/h? B. How much work was done to give the car this kinetic energy assuming the car starts from rest? C. How much work must be done to stop the car?

**Physical Science**

A lamp bulb is rated 100w. Why is a time factor not included in the rating?

**Physicsl Science**

A cart on a linear track has a uniform acceleration of 0.172 m/s^2. What is the velocity of the cart 4.00 s after it is released from rest?

**Physical Science**

An 84.9 kg man is standing on a frictionless ice surface when he throws a 2.00kg book at 11.1m/s. Do the man move in the same direction as the book or opposite of the book.

**Physical Science**

If six blocks of wood were cut from the same board , would all the pieces of wood have the same density?

**Physical Science**

Do wood float in gasoline and water?

**calculus**

1. Estimating the Temperature of a Yam Suppose you put a yam in a hot oven, maintained at a constant temperature of 200C. As the yam picks up heat from the oven, its temperature rises.16 (a) Draw a possible graph of the temperature T of the yam against time t (minutes) ...

**Physical Science**

If one measurement is known much more precisely than the other, the fractional error is the ratio of the absolute value of the difference (|M1-M2|), and the more accurate value. What is the percentage error of student A's measurement (37.2 cm long if it is determined by ...

**grammar**

"there are no bruits auscultated - are bruits and auscultated nouns,pronouns etc?

**Reading**

Except for a few pigeons, Central Park was deserted. Mist hung above the chilled grass. Patches of old snow, scattered here and there, looked like white puddles. The sun hung just above the horizon, casting red and orange streaks across low-hanging clouds. The portly, gray-...

**Intermediate algebra**

can you solve the quadratic function? y = 2x^2 + 3

**science**

If a 0.5 L container of juice contains 15 g of sugar, what's the concentration of sugar? A. 30 g/L B. 3.33 g/L C. 45 g/L D. 7.5 g/L I think b

**Math 222**

find the domain of each rational expression in set notation. x^2-36 divided by 3x 7w-2 divided by 16w^2-1 Then do both rational expressions have excluded values in their domains? If yes, explain why they are to be excluded from the domains. If no, explain why no exclusions are...