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Posts by hanna

Total # Posts: 185

Geometry
To the nearest degree, what angle does a hill with a grade of 11% make with a horizontal line?

Geometry
Tangent= Opposite/Hypotenuse Tan 9/15=30.96 (This is the Smallest Angle) Check: 90(This is the Right angle)+30.96=120.9 180-120.9=59.1(This is the third angle.) 9/sin 30.96 = 15/sin 59.1. This Does Work. So the Smallest Angle is 30.9 Degrees, rounded to 31.

Geometry
To the nearest degree, what is the measure of the smallest angle of a right triangle whose legs measure 9 and 15?

math
A triangular pyramid has a triangle base of 24 cm, triangle height of 16 cm, and a pyramid height of 14 cm. what is the volume of triangular prism.

math
7/10

Physics
A particle is initially moving along the positive x-axis at a speed of 9.90 m/s. After 2.40 s, the particle is moving along the negative y-axis at a speed of 4.71 m/s. Find the x and y components of the particle's acceleration.

calculus
The point on the curve for y = sqrt(2x+1) at which tangent is perpendicular to the line y = -3x + 6 is.... a. (4, 3) b. (0,1) c. (1, sqrt3) d. (4, -3) e. (2, sqrt 5) I'm not sure, but do you find the perpendicular slope (1/3) set that as dy/dx and solve for x or y? I tried...

geometry
quadrilateral ABCD has right angles at B and D. If ABCD is kite-shaped with AB=AD=20 and BC=CD=15, find the radius of the circle inscribed in ABCD.

Math
not an answer, but steve, how did you get sqrt of 182.88? just wondering.

Math
Thanks so much! Could you tell me the base formula used for that?

Math
The half-life of carbon-14, which is used in dating archaeological finds, is 5730 yr. Assume that 100% of the carbon-14 is present at time 0 yr, or x=0. Write the equation that expresses the percentage of carbon-14 remaining as a function of time.

physics
IDK!!!!!!!

geometry
Solve y= 5/8b+10 for b

chemistry
6 Liters

Math
The House of Representatives has 435 members. If a committee has a prime number of members, and that number is a factor of 435, then how many members can be on the committee?

Math
Solve z= 9/13c for c

geometry
the figure below represents a building in the shape of a pentagon. using the scale 1 inch= 94 feet, what is the perimeter of the building?

Science
I need to make an acrostic poem for science. My teacher said that each letter needs to start a sentence about plant life. The word is photosynthesis. I need some ideas by the 13th of June. I already have p-h-o-t of photosynthesis. Pls help me!

Math
2yd 2ft = ?

math
3xt2

6th Grade Math
76/15=5.066666666666667=506 or 507%

math
help me!

physics
There is a 1500 mile race course. I MUST have a top speed of 36 meters/s (meaning I cannot go over 36). The max foward acceleration is 4 m/s squared and the max backward acceleration is 6 m/s squared. I start at 600m and must go to the 800m mark (I must travel 200m). What is ...

physics
There is a 1500 mile race course. The max foward acceleration is 4 m/s squared and the max backward acceleration is 6 m/s squared. I start at 600m and must go to the 800m mark (I must travel 200m). What is an equation for the fastest time that I could get to 800m? What is the ...

Business Communication
Indicate the alternative that both correctly evaluates the following sentence and correctly explains the reason for the evaluation. “As soon as you provide your date of birth on Line 2, your application for a flexible spending account will be processed.” a) Good ...

Business Communication
Which of the following would be classified as an informative or positive message? a) A request for information b) An announcement of a policy that reduces benefits c) A memo for the file recording actions and rationales d) A letter to an employer announcing you have accepted ...

Business Communication
Many companies have found that family-friendly policies: a) are good recruiting tools, but often result in relocation failures. b) are one of the six leading reasons that new managers fail. c) have given employees with children higher overall compensation levels. d) produce ...

Business Communication
The dean of students is announcing a reception for new nontraditional students. Which of the following is the BEST subject line? a) Nontraditional Students b) Reception to Welcome Nontraditional Students Who are Attending the University for the First Time c) Will You Help Us ...

statistics
In a batch of 97 computer diskettes, 8 are defective. A sample of six diskettes is to be selected from the batch.How many of the samples consist of all defective diskettes?

math
You select 10 cards randomly from a deck of 52 cards. What is the probability that all of the cards selected are face cards (i.e. jacks, queens, or kings)?

8th grade
what vegetable has these letters? HARBRUB?

science
what is a change in position

science
___________ IS A FORCE THAT OPPOSES AN OBJECT IN MOTION

science
there are no chocies

social studies
there is no chocies

science
what is force that opposes the motion of an object through liquid or gas

Math
What is the angle measure for a section in a circle graph that represents 38%?

statistics
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is

statistics
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is

math
ghuj

Chemistry
Use the balanced equation to determine the theoretical yield. Focus on the chemicals whose quantities you are given or are asked to find. CO is not important as it is excess and will make sure that all of the Fe2O3 will be changed to iron. Remember the quotients (numbers in ...

Math
Thank you Ms. Sue:)

Math
A juice mix requires the addition of 32 oz of water for every 12 oz of juice concentrate. How much juice mix may be made from 15 oz of concentrate?

Math
Yes! Thank you Ms. Sue

Math
Hi Ms. Sue 5/6 ÷ -18 5/6 x -1/18= -5/108 Did I do this right?

Math
Find each quotient. A. 7/3 ÷3 1/2 B. 5/6 ÷ -18

Math
Thank you

Math
how do you write 0.7012 in scientific notation?

Math
Thank you for walking me through the problem. You are greatly appreciated:)

Math
Jack has 99 hot dogs and 261 hot dog buns. He wants to put the same number of hot dogs and hot dog buns on each tray. What is the greatest number of trays Jack can use to accomplish this?

social studies/history
20 example/ways the govt. of north korea control the country and the people

math
your school is raffling off a TV set and a total of 750 tickets were sold. you sold 75 tickets to your family. what fractional value did you sell?

5th grade Language
Yaeh Ms. Sue's answers are right

math
A. write (2^3)^3 as a single power of 2. show your work . B.write your answer from part A as a standard number. please help i don't get it.

5th grade social studies
Who were some of the famous explorers of 1450-1763???

5th grade social studies
What was the french and indian war about?

social studies
who were some of the famous explorers of the years 1450-1763?

7th grade
how do you know when something has energy?

Statistics
Hi again. I did more studying on testing the hypothesis and tried the problem again. Can you check if it is correct? a) I made Ho=2/3, Ha=otherwise. I did the z test and got z=-0.0508. I think this means that 5.08% of the time, the sample will differ by AT LEAST as much as ...

Statistics
For the hypothesis test, if i were to use significance level of .10. Is the two tailed critical z value equal to + or - 1.645? Since z (-0.5873) is smaller than critical z, I said that Ho should not be rejected so 2/3 figure is NOT implausible for kissing behavior. Is this ...

Statistics
Hi, I understand that part now and got -0.5873 as the z value. However, I do not know how to find the critical z value for the two-tailed test, and without a given alpha value. Also, if I am correct, this hypothesis corresponds to part b) of the question? Can you give me ...

Statistics
I really need help with this problem. I am not sure what the question is asking and how to approach it! Thanks in advance! Its known that 2/3 of humans have a dominant right foot or eye. Is there also a right-sided dominance in kissing behaviour? In a sample of 124 kissing ...

science
how is quartz seen in the make-up of granite?

english language arts
seed folk

math
The math team in addville travled to subtractville for a math compertition. The bus averaged 40 mph from addville to subtractville but adveraged 60 mph during the return trip. What was the adverage speed of the bus for the entire trip? Thats the story problem i have to solve. ...

math
1-3 2-4 3-5 4-2 5-1 or it may be this, sorry for not being sure

math
1-3 2-4 5-1 ??? im not quite sure though

ALGEBRA
3x + 3y +xy I think that is one of them

English
please help me :( I also have another question.. do you say "show to" or "show for"?

English
I'm writing a review and want to say that "xxx is what pushes the story forward" but with a more elegant and correct formulation. English is not my first language so I don't know all the expressions and such but I think that there is a proper expression for ...

math
1. a 7/20 chance... in percent, 35 % chance 2. 55 %? :S But that sounds almost too easy... 3. I think it does always set in the west, if that's true, the answer is C - 1.

Chemistry/Redox Reactions
An electrochemical cell consists of a nickel metal electrode immersed in a solution with [Ni2+] = 1.0 M separated by a porous disk from an aluminium metal electrode immersed in a solution with [Al3+] = 1.0 M. Sodium hydroxide is added to the aluminium compartment causing Al(OH...

digital electronics
encoder & decoder, k-map

Math/Health
16.b 17.b i don't know #18 19.0 20.c

Health care
the answer d

math
alexander had some nickles in his bank. he added 3 dimes to the bank and then he had 85 cents.how many nickles did he have left? write an equation and work backward to solve.

Chemistry
"There are two ions per formula unit in this compound. The -1 anion has 8 more electrons than the cation." I need to find the Chemical formula/name. Any suggestions on how to start? This can have more than one correct answer.

math
This should be Range.

Math- Calculus
:3 yep I got there too. It was y=3x+2 I think. It doesn't matter though XD I'll just ask my teacher when I get there

Math- Calculus
Find an equation of the line that is tangent to the graph of f and parallel to the given line Function: f(x) = x^3 Line 3x-y+1 = 0 ._.; I know the derivative of the function is 3x^2 and I do have the answer in the back of my book just need the way to get it..

math
HOW DO I FIND THA AREA OF A TRIANGLE? 1/2 times the base times the height.

spelling
omg this website helped so much!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Economics
Is the airline business considered to be a monopoly or oligolply? it's an oligopoly, I think. If you think about it that's more likely. Good question by the way. Tom is right. Please check these sites for more information. http://en.wikipedia.org/wiki/Oligopoly (Broken...

Essay Pointers
Here is an essay i wrote about A Separate Peace. If someone can tell me what needs to be fixed and stuff. By the way, should I use heck in this essay? My friend said it was too... informal

secondhand lions essays
I have to write a typed (doubled spaced)1 page essay on each of the following ... Discuss the scenes where the boy speaks his own opinion what do these scenes tell you about the boy? How did the decisions made for the boy affect the boys life? How does this movie define family...

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