# katelyn

Newest questions posted by katelyn-
## Math

A male African elephant weighs 7 Tons. If a male African lion at the local zoo weighs 40 of the weight of the male African elephant, how many pounds does the lion weigh? -
## Math

The measure of (Angle)D is 5 times the measure of (Angle)E. The two angles are supplementary. Find the measure of each angle. My Method: x+x*5=180 I tried this but it didn't work, any correct steps? -
## Math

The measure of (Angle) A is 4 degrees greater than the measure of (Angle) B. The two angles are complementary. Find the measure of each angle. (I tried 41+45 but that didn't work out, anyone got any steps to solve this?) -
## Algebra

The school photography club charges $10 for each photo in its annual pet photo contest. The club wants to save $75 of its earnings for a pizza party. The club members also want to have at least $50 left over after the pizza party to pay for other club -
## Algebra

Amy has some money in her checking account. If she writes a check for $40.50, her checking account will be overdrawn by $21.50. Find how much money is Amy’s checking account now. My Answer (please correct if wrong): 40.5 - (-21.50) = x -
## Algebra

Andy and Sylvie each incorrectly simplified the expression -3 - 4(2x - 3). Andy wrote -14x + 21 and Sylvie wrote -8 - 6. Explain their errors and give the correct answer. My answer: What Andy did wrong is adding instead of subtracting and adding the -
## Math

Scores on the GRE are normally distributed with a mean of 541 and a standard deviation of 89. Use the 68-95-99.7 rule to find the percentage of people who score between 363 and 541 -
## Math

Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 554 and a standard deviation of 120. Use the 68-95-99.7 Rule to find the percentage of people taking the test who score between 434 and 674 -
## English

Open ended question examples? -
## Reading

What does an open ended question look like? -
## Math

The scores on the GRE are normally distributed with a mean of 541 and a standard deviation of 89. Use the 68-95-99.7 rule to find the percentage of people taking the test who score between 363 and 541 -
## history

Do you think the U.S. and other nations should have joined the League of Nations with no restrictions to its obligations under Article 10? Its hard for me to comprehend this. Could someone help? -
## Physics

2. A ham sandwich consists of one slice of ham (7grams) and two slices of bread (25 grams each). You have 1kg of ham and 1kg of bread. You make as many as you can. How many sandwiches did you make? What is the mass of the sandwiches? What is the mass of -
## Physics

1.Given that 1g of hydrogen combines completely with 8g of oxygen to form water, how much water can you make with 9g of hydrogen and 32g of oxygen? -
## Physics

A wheel accelerates from rest to 59 rad/s at a rate of 58 rad/s^2 What is the angular displacement of the wheel??? A) 24 rad B) 38 rad C) 30 rad -
## Physics

You exert a force of 26 N on the head of a thumbtack. the head of the thumbtack has a radius of 7 mm.? What is the pressure on your thumb? -------- atm -
## Physics

Three liters of nitrogen combine with 9 L of hydrogen to form 6 L of ammonia. If the molecules of nitrogen and hydrogen have two atoms each, how many atoms of hydrogen and nitrogen are there in one molecule of ammonia? ____ atoms of hydrogen ____ atoms of -
## physics

An ideal gas has the following initial conditions: Vi = 490 cm3, Pi = 5 atm, and Ti = 100°C. What is its final temperature if the pressure is reduced to 1 atm and the volume expands to 1000 cm3? ______ °C -
## physics

Three liters of nitrogen combine with 9 L of hydrogen to form 6 L of ammonia. If the molecules of nitrogen and hydrogen have two atoms each, how many atoms of hydrogen and nitrogen are there in one molecule of ammonia? ____ atoms of hydrogen ____ atoms of -
## physics

A cube of ice, 28 cm on each side, is melted into a measuring cup. What is the volume of the liquid water? ------cm3 -
## physics

A solid ball with a volume of 0.1 m3 is made of a material with a density of 2800 kg/m3. What is the mass of the ball? -----kg -
## physics

An ideal gas has the following initial conditions: Vi = 490 cm3, Pi = 5 atm, and Ti = 100°C. What is its final temperature if the pressure is reduced to 1 atm and the volume expands to 1000 cm3? -----°C -
## physics

A 3 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 5 m high. At the same time, an identical block (block B) is released next to the ramp so that it drops straight down the same 5 m. Find the values for each of -
## physics

A 1200 kg car traveling north at 14 m/s is rear ended by a 2000 kg truck traveling at 25 m/s. If the truck and car lock bumpers and stick together, what is their speed immediately after the collision? -
## physics

An ideal gas has the following initial conditions: Vi = 490 cm3, Pi = 5 atm, and Ti = 100°C. What is its final temperature if the pressure is reduced to 1 atm and the volume expands to 1000 cm3? _____°C -
## physics

The pressure in each of your car tires is 2.10 105 Pa. The mass of your car is 1550 kg. Assuming that each of your tires bears one-quarter of the total load, what is the contact area of each tire with the road? ______ m2 -
## physics

If the rotational speed of a CD changes from 550 rpm to 200 rpm as it plays 30 minutes of music, what is the CD's average rotational acceleration? -
## physics

If a hair dryer is rated at 900 W, how much energy does it require in 5 minutes? -
## physics

3 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 5 m high. At the same time, an identical block (block B) is released next to the ramp so that it drops straight down the same 5 m. Find the values for each of -
## Chemistry

The principal quantum number (n): A) specifies the subshell of the orbital. B) specifies the principal shell of the orbital. C) specifies the 3-D shape of the orbital. D) specifies the maximum number of electrons. E) none of the above -
## Chemistry

What is the maximum mass, in grams, of NH3 that can be produced by the reaction of 1.0 g of N2 and 1.0 g of H2 using the reaction below? N2+H2→NH3 (not balanced) A) 0.60 g B) 5.7 g C) 1.2 g D) 2.9 g -
## Chemistry

What is the maximum mass, in grams, of NH3 that can be produced by the reaction of 1.0 g of N2 and 1.0 g of H2 using the reaction below? N2+H2→NH3 (not balanced) What is the maximum mass, in grams, of that can be produced by the reaction of 1.0 g of and -
## Physics

Two identical boxcars (m = 14866 kg) are traveling along the same track but in opposite directions. Both boxcars have a speed of 5 m/s. If the cars collide and couple together, what will be the final speed of the pair? -
## physics

Two identical boxcars (m = 14866 kg) are traveling along the same track but in opposite directions. Both boxcars have a speed of 5 m/s. If the cars collide and couple together, what will be the final speed of the pair? -
## physics

If the momentum of one object changes in a system that is subject to no net external force, what else must happen? 1) Collisions with other objects will change its momentum back. 2) The momenta of the other objects in that system change in the same way. 3) -
## Math

A rectangle is 2.8 meters wide and 3.5 meters long. What is the area? -
## physics

What is the acceleration due to gravity at a distance of one Earth radius above the Earth's surface -
## Chemistry

Classify the following reactions as precipitation reactions, oxidation-reduction reactions, or acid-base reactions. 1)2NaCl(aq)+K2H2Sb2O7(aq)==Na2H2SbO7(s)+2KCl(aq) 2)(CH3COO)2Cu(aq)+(NH4)2C2O4(aq)==CuC2O4(s)+2CH3COONH4(aq) 3)4Al(s)+3O2(g)==2Al2O3(s) -
## physics

What happens to centripetal force when speed decreases, in the special case that the object continues moving in a circle of the same radius? A) The radius cannot stay the same. B) The force also decreases. C) The force increases. D) Speed does not affect -
## algebra 1

write an algebraic expression for each verbal expression. Then write a real-world situation that could be modeled by the expression. 10 more than y -
## Math

An ice cream shop offers 5 different flavors of ice cream and 9 different toppings. How many choices are possible for a single serving of ice cream with one topping? -
## Pre-Calculus

Find the equation in standard form for the hyperbola that satisfies the given conditions: transverse axis endpoints (-2,-2) and (-2,7), slope of one asymptote 4/3. I found the distance of the transverse axis to be 9. For the formula, I have a=9/2. I need -
## Pre-Calculus

Find the equation in standard form for the hyperbola that satisfies the given conditions: transverse axis has endpoints (5,3) and (-7, 3) and conjugate axis has a length of 10. I found the distance of the transverse axis to be 12. For the formula, I have -
## science

A loaf of bread weighs 1,362 g. The weight in kilograms is Select one: a. 1,362 kg. b. 0.01362 kg. c. 0.1362 kg. d. 1.362 kg. Next -
## Social Studies

PLEASE GIVE ME YOUR REFLECTION ON THIS ARTICLE!!!! THANK YOU!!!! Nations agree to protect the high seas from overfishing Environmentalists celebrated last month after the United Nations finally agreed that the high seas need protection. The high seas, -
## history

What reason was given by the federalists to support the constitution? Is it that the united states needed a strong government to establish economic stability, to maintain control over all its states, to define state boundaries, or in order to pass laws to -
## Social Studies

Can you please summarize what the "Colombian Exchange" is? -
## Trigg

This one is throwing me off, I don't get how to do a identity equaling to -.3 Cos2x=-.3 -
## Physics

an airplane flies sue west at 185 km/h with respect to the air. there is a wind blowing at 85 km/h to the northeast relative to the ground. what is the planes speed and direction with respect to the ground answers. // our class is literally stuck in this -
## Science

If you lift a 15 °C unsaturated air bubble from the surface to 1 km height, what would be its final air temperature? -
## Science

If you lift a 15 °C air bubble from the surface to 1 km height and the environmental temperature at 1 km is 10 °C, what stability does the atmosphere demonstrate at this level? -
## English

"Was that (she, her) on the patio?" I think her? -
## maths

The difference between 2 positive numbers, x and y where x > y, is 7 and the sum of their squares is 137. By forming 2 equations in x and y, find the product of these 2 numbers. -
## Physics

A 45.0 g ball of copper has a net charge of 2.3 µC. What fraction of the copper's electrons have been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.) -
## ELA

Correct the possessive nouns. The sisters-in-law potluck was a sucess. (plural) Carlos dog ran home. (singular) -
## ela

Underline the appositive in each sentence. Circle the noun it describes. 3.Genes, sections of DNA, govern all of life's processes. 4. Each gene, the structural unit of inheritance, is a segment of a DNA molecule with a specific purpose. Thanks everyone. I -
## Math

4X^2+4y^2-8X-20y+13=0 -
## Math

Brandy plans to frame a picture with a sheet of construction paper. Her picture is 8 inches wide and 13 inches long. She wants the frame to extend 1 inch beyond the picture on all sides l. How wide and long should the frame be? What is the perimeter of her -
## Math

While getting dressed for school early one morning, the light in Toni's bedroom burned out. Toni knew he had plenty of clean socks in his drawer, but none of them were matched. He had 24 white socks and 6 blue socks. What is the probabilty of Toni finding -
## geometry

name a pair of obtuse adjacent angles -
## Math

you have a job assembling tables and chairs. you are paid $30 for each chair and $70 for each table. last week you assembled a total of 14 items and make $660. how many did you make of each? -
## Math help

a $6000 principal earns 8% interest compounded semi annually after 35 years what is the balance -
## Math

Please show me how to solve 32 yd/min = __ in./s -
## Help please math

Solve using substitution. y = x – 2 x + y = 10 7x + 2y = - 8 8y = 4x Solve using elimination. 2x + 3y = 12 2x – y = 4 5x – 2y = - 19 2x + 3y = 0 -
## Statistics

A state survey investigates whether the proportion of 8% for employees who commute by car to work is higher than it was five years ago. A test on employee commuting by car was done on a random sample size of 1000 and found 100 commuters by car. Test an -
## Statistics

When consumers apply for credit, their credit is rated using the FICO score. A bank manager used a random sample of the credit scores of 18 customers and determined the following 95% confidence interval: (613.6, 708.0) If the sample used 45 customers -
## Statistics

A scientist in Smallville tested the cholesterol of a random sample of 35 town residents. He constructed the following confidence interval: t-interval for μ: with 99.00% Confidence: 188 < μ(Cholesterol) < 206 What is the margin of error? A) 18 B) 9 C) -
## Statistics

Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey of 1026 adults by IBR Polls -
## Statistics

A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 5%. the type of alternative hypothesis is: left-tailed right-tailed or two-tailed Is this right-tailed? -
## Statistics

Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey of 1026 adult women by IBR -
## Statistics

Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey of 1026 adults by IBR Polls -
## Chemistry

Hi, I'm doing a chem lab of the Percent Composition of Potassium Chlorate-A Gas Law Experiment and we need to calculate the percent of KClO3 in the sample volumetrically and gravimetrically. I need help calculating the Volumetric percent of KClO3 in sample -
## chemistry

A 1.213g sample of an unknown weak monoprotic acid was titrated to the endpoint with 27.25mL of a 0.3016M NaOH Calculate: -the number of moles of base reacted. -the number of moles of acid originally present. -the molar mass of the acid. -
## statistics

A new medication has been created to treat osteo-arthritis inflammation and pain. Doctors prescribing the drug claim that the drug is not as effective for women as men since women taking the medication have higher pain levels than men. The pharmaceutical -
## statistics

Randomly selected cans of Coke are measured for the amount of cola in ounces. The sample values listed below have a mean of 12.18 ounces and a standard deviation of 0.118 ounces. Use DataDesk to find a 99% confidence interval for the mean volume of Coke in -
## statistics

Politicians are interested in knowing the opinions of their constituents on important issues. One administrative assistant to a senator claims that more than 63% of adult women favor stricter gun laws. A recent telephone survey of 1026 adults by IBR Polls -
## Algebra

Solving equations simultaneously: .7*x+.30*y=33.1 (x*y)/(.7*y+.30*x) = 3.66 I get stuck after I get 51.972=45.2y-.42y^2 I know the answers are supposed to be x=2.6 and y=104 -
## Algebra

Solving equations simultaneously: .7*x+.30*y=33.1 (x*y)/(.7*y+.30*x) = 3.66 I get stuck after I get 51.972=45.2y-.42y^2 I know the answers are supposed to be x=2.6 and y=104 -
## Trig

Verify that each trigometric equation is an identity. 1/1-sinx + 1/1+sinx = 2 sec^2x -
## Chemistry

Find the pH: 1) A 0.001M solution of HCl 2) A 7.98 x 10^-2 M solution of HNO3 3) 1098L of a solution containing 8.543moles of HBr 4) 120mL of a solution containing 0.005 grams of hydrochloric acid. Please help me with these four. Out of 20 questions i only -
## Trig

A pulley with a diameter of 24 inches is driven by a belt which is moving 1045 ft/min. How many revolutions per minute are made by the pulley? -
## Trigonometry

A car wheel has a 13-inch radius. Through what angle does the wheel turn when the car rolls forward 4 ft? -
## Trigonometry

A bicycle with a 26-inch wheel(diameter) travels a distance of 700 feet. How many revolutions does the wheel make? -
## Trigonometry

A pendulum of length 17.6 inches swing 1 degree and 5 minutes to each side of its vertical posisition. To the nearest hundreth of an inch, what is the length of the arc through which the end of the pendulum swings? -
## Trigonometry

Two wheels are rotating in such a way that the rotation of the smaller wheel causes the larger wheel to rotate. The radius of the smaller wheel is 4.4 centimeters and the radius of the larger wheel is 20.9 centimeters. Through how many degrees wil the -
## math

A sensor light can detect motion for a distance of 70ft. with a range of motion of 189 degrees. Over what area will the sensor detect motion and become illuminated? -
## math

A pendulum swings through an angle of 14 degrees each second. If the pendulum is 17cm in length and the complete swing from right to left lasts 3 seconds, what area is covered by each complete swing? -
## math

Find the area of a parallelogram with base b and height h. b = 82 cm h = 16.6 cm .1,361.2 cm2 .6,724 cm2 .137.78 cm2 .98.6 cm2 -
## Algebra

simplify 9to 6th power times 3 to the 7th power all over 9 to the 8th power times 3 to the 6th power -
## AP Chemistry

Calculate delta H fro the following equation: H20(l, 50.0 C) yields H20(s, -10.0 C) -
## AP Chemistry

The solubility of sodium nitrate is 32 grams in 50.0 grams of water at 60 degrees C. If 60 grams of potassium nitrate are mixed with 50.0 grams of water, determine the percentage of sodium nitrate that remains undissolved. -
## AP Chemistry

The solubility of sodium nitrate is 32 grams in 50.0 grams of water at 60 degrees C. If 60 grams of potassium nitrate are mixed with 50.0 grams of water, determine the percentage of sodium nitrate that remains undissolved. -
## Coop

Pharmacy technician: 1) Required skills: a) job specific skills b) Transferable skills 2) Male to female Ratio -
## Co-op

I have to writeabout the work setting and work environment of a pharmacy technician... I am allowed to copy and paste from a website as long as you reference it so I did... but all in all this is what I wrote.: Work environment: Pharmacy technicians work -
## Co-op

I have been given a cooperative education placement and career research assignment... Basically I have to do research of my career by giving its information, where I work research, What I do research, What I learned research, Related course connection -
## math

A $15,000 debt is to be amortized in 12 equal semiannual payments at 5.5% interest per half-year on the unpaid balance. Construct an amortization table to determine the unpaid balance after two payments have been made. Round values in the table to the -
## physics

An object with a mass of 5000kg is 6.5m away from an object with the mass of 2000kg. What is the force exerted on the smaller mass by the bigger mass? -
## Algebra

during a sale at the local department store, you buy three sweatshirts and two pairs of sweatpants for $85.50. later you return to the same store and but three more sweatshirts and four more pairs of sweatpants for $123. what is the sale price of each -
## Economics

Which of the following firms caould raise prices and expect an increase in revenues? A)a firm product has an elasticity of 1 B)a firm whose product has an elasticity of 0.31 C)a firm whose product has an elasticity of 3.1 D)all firms regardless of the -
## Math

How do you write 2 1/4 as a percent?

## Pages

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