# Posts by Mary

Total # Posts: 3,831

Math
A customer at a restaurant receives a bill for \$43.20. The customer wants to leave a 15% tip

Math
The sum of three positive number is 30. The first plus twice the second plus three times the third add up to 60. Select the numbers so that the product of all three is as large as possilbe.

Math
A basket contains 6 oranges and 4 tangerines. A sample of 3 is drawn. Find the probability that they are all oranges.

Calculus Related Rates
A hot air balloon, 50 feet from an observer, is rising at 20 ft/sec. At 5 seconds after lift off 1. How fast is the distance between the observer and the balloon changing? 2. How fast is the angle of elevation changing?

Calculus
Two sides of a triangle are 2 meters and 3 meters and the angle between them is increasing at 0.5 radians/second when the angle is pi/4. 1. How fast is the distance between the tips increasing? 2. How fast is the area increasing? I got part of #1 but I am getting multiple ...

Calculus
Two sides of a triangle are 2 meters and 3 meters and the angle between them is increasing at 0.5 radians/second when the angle is pi/4. 1. How fast is the distance between the tips increasing? 2. How fast is the area increasing? I got part of #1 but I am getting multiple ...

math
Calculate the present value of \$1000 to be received at the end of 8years. Assume an interest payment rate of 5percent

math
How many cubes with 1/2 inch side lengths will fit inside a prism with a volume of 56 cubic inches? I'm thinking 112, since 56 * 2 =112, but I'm not sure if that's the right thinking.

math
How many cubes with 1/2 inch side lengths will fit inside a prism with a volume of 56 cubic inches? I'm thinking 112, since 56 * 2 =112, but I'm not sure if that's the right thinking.

history,geography,life science,maths literacy
two reasons why nursing is a suitable course

Calculus
Two sides of a triangle have lengths 8 m and 13 m. The angle between them is increasing at a rate of 0.08 radians /min. How fast is the length of the third side increasing when the angle between the sides of fixed length is π/3 radians. Please help I have been stuck on ...

cleveland
1/ 3xy^3 - 8/ 15x^2y

Math
The diameter of a normal front wheel on a bicycle is 24" Find the circumference and area of the front wheel?

maths lit, life sciences, visual arts and business
I'm not sure at the moment. Which courses could I study after high school?

maths lit, life sciences, visual arts and business
hi I am currently in grade 10 and I would like to know which courses are there for me when my subjects are maths literacy, business studies, visual arts and life sciences

Math
Formula. I = P x R x T. Is time is for 2 years do You \$10,000 x .15 x 2 (or 24 months)

physics
A bag of sugar weighs 3.00 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration is one-sixth that on Earth? N Repeat for Jupiter, where g is 2.64 times that on Earth. N Find the mass of the bag of sugar in kilograms at each of the three ...

Biology
what compounds (fats, starch, protein and simple sugar) do the following foods have? Oatmeal Margarine Salmon Whole milk Chocolate chip cookies Peach

Biology
what compounds (fats, starch, protein and simple sugar) do the following foods have? Oatmeal Margarine Salmon Whole milk Chocolate chip cookies Peach

Physics
A projectile is launched with an initial speed of 59.0 m/s at an angle of 32.0° above the horizontal. The projectile lands on a hillside 3.80 s later. Neglect air friction. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) (a) What is the ...

algebra
Use the given zero to find the remaining zeros of the function. (hx)= 3x^4+5x^3+25x^2+45x-18; zero:-3i labe

alebra
Find the intercepts if any x^2+y^2+8x-8y-49=0 Labe

shelby
the boat launch shown is 32 meters longer than the rise of the ramp. The run is 31 meters longer than the rise. How long are the three sides of the ramp?

Math
1 hour

burns highs school
f(t) = −16t2 + 160t + 26 and the height in feet of the higher-traveling second flare is given by g(t) = −16t2 + 178t + 39, after t seconds.

physics
A 3.6-kg cat is sitting on the edge a merry-go-round that is spinning at 2.7 rad/s. The diameter of the merry-go-round is 5.6 m. How large is the static friction between the cat’s paws and the surface of the merry-go-round if it does not slip off?

Math
Can you show me how to do this problem: Find the missing dimensions of triangle XYZ. The info it gives me is side X has the number 2, Side Y has the letter m , and Z has the letter n. What do I do for this?

math
three taps fills water in a tank.one fills it in 3hrs another in 4hrs and the third in 6hrs.if all run together how soon will they fill the tank?

prealgebra
You deposit \$2500 at 4% interest. How long will it take to earn \$3000?

physics
A cubical block of density rB and with sides of length L floats in a liquid of greater density rL. (a) What fraction of the block’s volume is above the surface of the liquid? (b) The liquid is denser than water (density rW) and does not mix with it. If water is poured on ...

physic
A figure skater glides along a circular path of radius 5.20 m. (a) If she coasts around one half of the circle, find the magnitude of the displacement vector. m (b) If she coasts around one half of the circle, find what distance she skated. m (c) What is the magnitude of the ...

physics
A fireman d = 56.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of θi = 24.0° above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose is vi = 40.0 m/s, at what height will the ...

physics
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height? answer in (m/s)

physic
The magnitudes of two vectors vector A and vector B are 20 units and 5 units, respectively. What are the largest and smallest possible values for the magnitude of the resultant vector vector R = vector A + vector B ? largest:? units Smallest:? units

physics
a uniform beam 6.0 metre long and weighing 4kg rests on support at p and q placed left and right 1.0 metres from each end of the beam weights of mass 10 kg and 8kg are placed near p and q respectively one each end of the beam.calculate the reaction at p and q?

Math
You want to buy your dream car, but you are \$5,000 short. If you could invest your entire savings of \$2,350 at an annual interest rate of 12%. How long would you have to wait until you have accumulated enough money to buy the car?

Do you think the legal system should enforce more promises?

math
Choose the answer. 4. (3 pt) Vanessa drew a line that was 6 inches long. She divided the line into 7 equal-length segments. How long was each segment? A.7/6 in. B.13 in. C.6/7 in. D.1/7 in.

SS 1 QUESTION PLZ HELP
what this is my first time what are you talking about?

SS 1 QUESTION PLZ HELP
plz help plzzzzzzzzzz

SS 1 QUESTION PLZ HELP
hello anyone? PLZ HELP

SS 1 QUESTION PLZ HELP
5.how do Canada's native people intend to preserve their cultures? A. by coming independent nations B. by moving away from reserves*** C. by working with existing governments D. by using English on the street signs in their communities

math

Math
If you drive 13 miles a day for 1 week, How many miles would you have driven on the 6th day?

statistics/ mean median mode
mean & median

Science
Which of the following best describes the result of using a catalyst in a chemical reaction? A. The yield of product is increased. B. A more desirable product is often formed. C. A greater amount of heat energy is released by the reaction. D. The reaction is completed in a ...

Science
Suppose you have a 50.0g sample of ice at -30.0 C. How many joules of heat energy are needed to heat the ice to 0.0 C? How many joules of heat energy are needed to melt the ice? I do not know how to set either of these up.

Science
How to balance reaction of solid calcium carbide (CaC2) with excess water to form acetylene gas (C2H2) and solid calcium hydroxide?

Math
wow ms sue ur mean

Math
i mean not D i meant 4. A

Math
Sure 1. C 2. B 3. A D. A

Math
350 is 70% of what number? A) 500 B) 420 C) 245 D) 280 What percent of 64 is 24? A) 267% B) 62.5% C) 40% D) 37.5% What percent of \$6.50 is \$2.60? A) 25% B) 40% C) 90% D) 250% 20% of 140 is what number? A) 280 B) 120 C) 28 D) 12

maths,
Suppose Start Fraction pi Over 2 End Fraction less-than theta less-than pi and sine ⁡ theta equals Start Fraction 2 Over 5 End Fraction period Evaluate cosine ⁡ theta.

accounting
When sales are constant, but the production level fluctuates, net operating income determined by the absorption costing method will:

State the number of solutions a quadratic trigonometric equation can have in one cycle.

Math
THANKS:)

Math
State all possiblities for the number of solutions a quadratic equation can have in one cycle.

math
. A deposit of 7,500 earns 3,900 over a period of 8 years. What is thw simple interest rate?

burke county middle school
A deposit of 7,500 earns 3,900 over a period of 8 years. What is the simple interest rate?

0.30*3=0.9cups

STATISTICS
Before accepting a large shipment of bolts, the director of an elevator construction project checks the tensile strength of a simple random sample consisting of 20 bolts. She is concerned that the bolts may be counterfeits, which bear the proper markings for this grade of bolt...

STATISTICS
t has been claimed that 65% of homeowners would prefer to heat with electricity instead of gas. A study finds that 60% of 2000 homeowners prefer electric heating to gas. Can we conclude that the percentage who prefer electric heating differs from 65%? Use alpha = 10%

Math
If clay had 50 apples and 4 times more are red than green. How many red apples does clay have?

Math
Write the missing digits to make each number sentence true 7□7 <713

Social Studies
1. When people talk about natural resources, they usually mean (1 point) vegetation. water. minerals. all of the above•• 2. Geothermal energy is considered a (1 point) fossil fuel. renewable resource.•• nonrenewable resource. recyclable resource. 3. ...

Social Studies
Oh my gosh!- When I was submitting it I totally forgot about the corrections, Wow Ms. Sue you are so smart!

Social Studies
Meaning I got a 90:( But its okay because my grade is still a 99

Social Studies
Number 3 was the discovery that the world was round- I got it wrong

Social Studies
Thanks, I will let you know my grade.

Social Studies
Jordan-Yes Ms. Sue, Correction- 3. Which of the following is NOT one of the four major advances in early cultures? (1 point) the invention of tools the beginnings of agriculture the discovery that the world is round•• the development of civilization

Social Studies
1. People's occupations, their behavior, and their beliefs are a part of their (1 point) government. climate. technology. culture.•• 2. When geographers study human-environment interaction, they learn (1 point) how schools are run. how people and their ...

Victoria has 2 pounds of flour, she uses 2/5 for pizza and 3/10 for bread. Find the weight of the pack of flour that is left..Express in decimal answer. 32 ounces of flour is what she has she uses 2/5 x32=64/5=12and4/5=12.8-32=19.2remaining flour she then uses 3/10 x32=96/10=9...

Victoria has 2 pounds of flour she uses 2/5 of flour for pizza and 3/10 of the flour for bread. Find the weight of the flour she has left. Express in decimal form. I worked on this and the answer I came up with was 19.2 lbs left?

Math
Do now

Language Arts!
Thank you!!

Language Arts!
Which of the following uses the indicative mood? A. I will feel flush after I get my very first paycheck for this job B. I insisted that my brother do the dishes because I set the table ** C. If I were rich I would get convertibles for us both D. If I won the lottery I hope ...

Math
Zoe keeps track of the miles per gallon her car gets per week. She has accumulated the following data: (1, 24), (2, 24.38), (3, 24.76), (4, 25.14) A. The common difference is 0.38 B. The common difference is 0.76 C. The common ratio is 0.99 D. The common ratio is 1.02

Math
Could you maybe explain how you got that.

Math
write the following equation in slope intercept form 3x+4y=12 Could someone explain how to do this problem?

maths
Tom spent 1/4 in one shop 1/3 in another and has 5.50 left. How much had he to begin with?

Organic Chemistry
What observed rotation is expected when a 1.44 M solution of (R)-2-butanol is mixed with an equal volume of a 0.720 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? The specific rotation of (R)-2-butanol is –...

Math - Arithmetic question
Thanks 😍

Math - Arithmetic question
I have a question about the limits to Arithmetic problems, on my homework I've noticed that so far all of the arithmetic sequences limits are infinite (-infinity or +infinity, I was just wondering if all the limits to Arithmetic problems are to an infinity since 99% of the...

statistic
2. High density lipoprotein (HDL) in healthy males follows a normal distribution with a mean of 50 and a standard deviation of 8. c)What is the 99th percentile of HDL in healthy males? d)If we consider samples of 10 patients, what is the 90th percentile of the mean HDL in ...

Math
Play tickets cost \$24 for two adults and two children. A child's ticket costs half as much as an adults ticket. Find cost of child's ticket

English
First of all Reed some people need help with work that is hard and that they don't understand.

Language Art's
you have to write a comparison and contrast in the write to learn and see how you did then write down in the quiz what is your strong suit and which is your bad trait.

Grammar
Which choice is a sentence fragment? Question options: Turning on the light, he suddenly got a shock. In the first year, Julio won three blue ribbons. Maggie's photos displayed in the lobby. We swept the floor first and then washed dishes.

Resturant/Diner
Julie's home cooked dinner

Chemistry
Iodine, I2, reacts with aqueous thiosulfate ion in neutral solution according to the balanced equation I2(aq)+2S2O2−3(aq)→S4O2−6(aq)+2I−(aq). How many grams of I2 are present in a solution if 33.00 mL of 0.165 M Na2S2O3 solution is needed to titrate the...

Physics
A body starts from rest and accelerates to a velocity of 5m/s in 20s. It then maintains this velocity for 10s and then decelerates to rest in further 10s. (a) Draw a velocity – time graph of the motion (b) Calculate the initial acceleration (iA body starts from rest and ...

physic
The thickness of a book is 3.2cm, measured between the insides of it cover. The highest page in the book is 1,096. What order of magnitude estimate does that give the thickness of a page of the book?

Physic
You see a bolt of lightning and hear thunder two seconds later. The speed of sound is about 343 m/s. Estimate?

math
An artist is commissioned to paint a large painting on a wall. The wall is a rectangle and it measures 87 feet by 65 feet. The artist charges \$68 per square yard. The artist gives no discount for any chunk of area less than a square yard. Find the total charge for painting the...

geography
An artist is commissioned to paint a large painting on a wall. The wall is a rectangle and it measures )( feet by '& feet. The artist charges \$') per square yard. The artist gives no discount for any chunk of area less than a square yard. Find the total charge for ...

Math
The information for two pay as you go cell phone companies is given on call 3.5 hours: \$10 talk time 1/2 hour: \$ 1.25

Math
I had the same problem the answer is 5 hours. :)

Grammar
Is this sentence a proper sentence? If so, would it be punctuated with an exclamation point? How tall this building is!

math
my car gets 40 miles per gallon of gas, gas cost is \$2.40 per gallon, I have to drive 3,600 miles. What will be my cost for gasoline?

Post a New Question