# Posts by Jena

Total # Posts: 119

geometrey
Decide whether perimeter or area should be considered when buying tilestiles needed for a floor.

Help me please my daughter math
Each week Susie washes dishes three nights,washes clothes one night,empties trash cans two nights,and cook supper one night.If her Aunt Nancy stopped by randomly one night,what are the chances that Susie would be cooking that night??

english
I DON'T KNOW ASK UR MOM

math
The product of 2 two digit number is 351.What is the two number and what is their sum.

math
Oh. Thank you for helping me :D

math
Patsy has cheer-leading practice every fourth day. She wants to be in the school play, but they have practice every sixth day. If both start on September 5th, what would be the next date she has to choose between cheer-leading and play practice? Explain. This is really ...

Science
Guys, don't listen to those answers, the correct answer is A. I did D and it said the correct answer is A.

Biology
summarize the reproductive cycle of pines

Science
It is D.

Im from Connexus XD

Ed Tech. PLZ HELP ASAP
>:O All of those that 'Hi' said, are all WRONG ;O; Here are the correct answers that it says is correct: 1. D 2. C 3. A 4. B 5. C

health
ointment

chemistry
Consider the following reaction. SO3(g) + H2O(l) → H2SO4(aq) A chemist allows 60.9 g of SO3 and 11.1 g of H2O to react. When the reaction is finished, the chemist collects 54.4 g of H2SO4. Determine the limiting reactant, theoretical yield, and percent yield for the ...

Science
A is wrong, I put it on my test and it was C. Guys, the correct answer is C NOT A.

Health and PE
Guys, do not listen to bobpursley's answer because it is wrong, i got it wrong on my test, the correct answer is B!!

Science

math
The sum of the first n odd number is n^2. The sum of the first 30 odd numbers is A. 60 B. 90 C. 300 D. 900 Thank you for the help in advance =)

science

Help!
@MusicLover14, your answer is WRONG. I did that on my test and I got it wrong, it is nonpoint.

science (check!)
So the correct answer is national park planning?

math
The total mass of three identical boxes is 28.05 kilograms. What is the mass, in kilograms, of each box?

Math
y=1/2x+3 Slope? x-intercept y-intercept How do I graph this?

math
how do I graph- y=-3x-6

math
Y=-3x-6 Slope- x-intercept- y-intercept How do I graph this?

science
Why would it be B?

Math
Carol Miller went to Europe and forgot to pay her \$820 mortgage payment on her New Hampshire ski house. For her 52 days overdue on her payment, the bank charged her a penalty of \$23. (assume 360 days). What was the rate of interest charged by the bank?

Chemistry
Convert 29.8 atm into torr I did this 29.8(1/760) and got 22648 but its not going online as correct

Chemistry
Convert 29.8 atm into torr I did this 29.8(1/760) and got 22648 but its not going online as correct

Chemistry
Yes its correct, but how about he mass of NaHCO3 in the tablet assuming the mass of the tablet is 3.50 g

Chemistry
HCl is added to NaHC03 .

Chemistry
I did the equation of the % mass but its wrong

Chemistry
reaction between NaHCO3 and HCl

Chemistry
Performing the same experiment described on your lab manual, a student used a 0.358 g sample of Alka-Seltzer and the mass of CO2 was found to be 0.102 g. Based on this result, answer the following questions: Determine the mass of NaHCO3 that produced the CO2 in the experiment...

Chemistry
a student used a 0.358 g sample of Alka-Seltzer and the mass of CO2 was found to be 0.102 g. Based on this result, answer the following questions: Determine the mass of NaHCO3 that produced the CO2 in the experiment. Determine the % mass of NaHCO3 in the sample. Determine the ...

Chem Hmwrk
For the reaction HCl + AgNO3 → ,write the balanced formula equation

Human Services
I am doing an assignment on program planning and evaluation. In the last section of the essay I am supposed to identify the technical aspects that my fictional domestic abuse recovery organization may run into. I do not understand what a technical aspect is. Can anyone explain...

Algebra
How?? What are the equations?

Algebra
What is the domain and range of the equation y=-x^2-4x-7?

Algebra 1
Whats: -3 < j + 2 < 7

math
A = B*2^-ht B = initial Amount t = time h = half-life Is that the whole question?? Becuase that really doesn't make sense. If you give me the whole question I can give you can answer.

algebra
Find integer bounds for the roots of the following equation: 3x^5-11x^4-2x^3=38x^2-21x-15

Math 116
No I think it would be (9, 14).

Algebra
What are intersections and unions (in algebra). Also, what are complements? And what does MATH stand for in terms of sets? Please answer quickly. Thanks!

Math
Oh yes sorry I got confused...don't listen to me...

Math
35-24

Earth Science
Ok thank you. At first I was confused, but then I realized that I was mixing up quantitative and qualitative. It makes sense now. Thanks!

Earth Science
What are FIVE tools that we use to help us extend our senses when making quantitative observations?

Chemistry
If you are given 46 grams of magnesium how many grams of hyfrogen will be produced?

math- check me
(-3)/(5)y=-15 Does y=25

math- check me
Sung rented a truck for one day. There was a base fee of \$17.99, and there was an additional charge of .90 cents for each mile driven. Sung had to pay \$253.79 when he returned the truck. For how many miles did he drive the truck? \$253.79=\$17.99+.90 -\$17.99 \$\$238.80=.90 divide ...

Math
I see what I did, I put a neg in front when it should have been and carried it through. Thanks

Math
h(x)=(2-2x^2)/-2 h(-2) I get (-2-2(-2)^2)/-2 (-2-2(4)/-2 6/-2=-3 h(-2)=-3

Math
g(x)=-5+sqrt(x-1) g(4)=-5+sqrt(4-1) is the answer -5+sqrt3

Ok thanks

I don't get a value for b, What am I missing?

Find the equation of the line. find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (-8, -6) and (x2, y2) = (0, 0) slope 0-(-6)/0-(-8)= 3/4 how would I write it? y=3/4x or y=3/4x+0 ?

Helper helped
thanks

Algebra
Restated:For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/(x^2+5) Check all symmetries that apply x-axis,y-axis,origin or non of the above.

Algebra
I get that the second equation x-axis. Is that right?

Algebra
Sorry y=1/(x^2+5)

Algebra
For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/x^2+5 Check all symmetries that apply x-axis,y-axis,origin or non of the above.

Algebra
thanks

Algebra

Algebra-still need some help
I get (-inf,-5/2)U[-6,infin) but it doesn't look right

Algebra-still need some help
Homework Help Forum: Algebra Posted by Jena on Thursday, February 3, 2011 at 7:32pm. Find the domain of the function. f(x)=(sqrt x+6)/(-2x-5) Write your answer as an interval or union of intervals. Algebra - David, Thursday, February 3, 2011 at 7:42pm (-6,-5/2)and(-5/2,...

Algebra
I'm lost

Algebra
Find the domain of the function. f(x)=(sqrt x+6)/(-2x-5) Write your answer as an interval or union of intervals.

Algebra desperate

Algebra

Algebra

Algebra-problem restated

Algebra

physics
how do you find time?

physics
A cat chases a mouse across a 1.7 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 2.1 m from the edge of the table. The acceleration of gravity is 9.81 m/s2 . What was the cat’s speed when it slid off the table? Answer ...

physics
A cat chases a mouse across a 1.7 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 2.1 m from the edge of the table. The acceleration of gravity is 9.81 m/s2 . What was the cat’s speed when it slid off the table? Answer ...

physics
An autographed baseball rolls off of a 0.63 m high desk and strikes the floor 0.46 m away from the desk. The acceleration of gravity is 9.81 m/s2 . How fast was it rolling on the desk before it fell off? Answer in units of m.

physics
A girl delivering newspapers travels 2 blocks west, 10 blocks north, then 4 blocks east. What is the magnitude of her resultant dis- placement? Answer in units of blocks. 077 (part 2 of 3) 10.0 points Find the direction (measured from due east, with counterclockwise positive) ...

physics
what is the vertical component?

physics
A cat climbs 20 m directly up a tree. What is the horizontal component of the cat’s displacement? Answer in units of m.

physics
A freight train has a mass of 3.2 × 107 kg. If the locomotive can exert a constant pull of 7.1 × 105 N, how long would it take to increase the speed of the train from rest to 74.6 km/h? (Disregard friction.)

chemistry
I am in need of help about this specific heat question. A 100.0g sample of aluminum released 1680 calories when cooled from 100.0 degrees C ti 20.0 degrees C. What is the specific heat of the metal? I tried setting it up: 1680 cal ________________________ 100.0 (100.0 *C- 20.0...

english
Are there any absolutes regarding rights and wrongs in the K-8 educational setting? Give examples to support your answer.

chemistry
How much energy is released when 1.9 kg of diethyl ether freezes? In kj

Geometry
A Regular Octagon with apothem of 9ft

math
Cola Company is offering its preferred customers a 25% discount on its most popular product normally listed at \$40 each. a) What is the net price of each product to Cola Company's preferred customers? For full marks your answer(s) should be rounded to the nearest cent. b...

College Chemistry
thank you Dr. Bob!!! :)

College Chemistry
I am trying to figure out how many minutes are required for sunlight to travel from the Sun to Earth? Assuming the sun is 93,000,000 miles from Earth and that sunlight travels at 1.86x10 to the 5th power miles per second. These things are so tricky, i know i have to convert ...

Milky Way
trying to google concept maps....try images if that help! best of luck!

College Chemistry
thank you so very much for your help!

College Chemistry
here is the question: A sapphire gemstone contains 52.7% aluminum, 47.% oxygen, and traces of titanium. If the saoohire was found to contain 0.155g of oxygen, what is the mass of the gemstone? i think this is a precent unit factor but i don't know how to set it up. PLEASE ...

math
Jeremy has a fish tank that has a 40-cm by 70-cm rectangular base. The water is 25 cm deep. When he drops rocks into the tank, the water goes up by 2 cm. What is the volume in liters of the rocks

math
On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 35 questions correct. What was the percent of increase?

math
Use a Venn diagram to determine whether A > (B < C) 5 (A > B) < C for all sets A, B, and C.

math
Consider the set of northwestern states or provinces {Montana, Washington, Idaho, Oregon, Alaska, British Columbia, Alberta}. If a person chooses one element, show that in three yes or no questions, we can determine the element.

College Chemistry
Are my calculations correct of i came up with 50.71g of CaH2 to the question, "How many grams of are needed to generate 54.5 of gas if the pressure of is 815 at 22?"

Math
12r-4r=48r=

Math help is a great website

Chemistry
How to find the mass of Oxygen that displaces water from the in the decomposition reaction of potassium chlorate using manganese 4 oxide as a catalyst. Am I to use stoichiometry or the combined gas law equation P1V1/T1=P2V2/T2

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