Saturday
October 25, 2014

Posts by bob


Total # Posts: 2,442

algebra
Which best describes the following function? f(x)=2^3.5x-7 a. exponential b. linear c.cubic d. quadratic
January 23, 2009

math
What is $600 invested at 9% interest, compounded quarterly, worth in 3 years? a. $640.50 b. $641 c.$762 d.$784
January 23, 2009

algebra
Solve the equation 10 x = 20 for x. a. x=1/2 b.x=2 c.x=1.3 d.x=10
January 23, 2009

Math
Suppose that humans walk about 10,000 steps per day on average. Your average step is probably about 18 inches. If so, how many inches per day do you walk? How Many feet per day do you walk? How many miles per day do you walk, to the nearest whole number?
January 23, 2009

physics
How fast WAS it rolling on the table before it fell off. I don't think the height of the table (1.5m) or distance from table (.8m) are relavent to the problem. Is this a trick problem???
January 20, 2009

physics
A 72 g baseball rolls off a 1.5 m high table and strikes the floor a distance of .8 m away from table. How fast is it rolling on the table before it fell off?? Accel of gravity is 9.81 m/s2.
January 20, 2009

physics
so is it A B OR C
January 20, 2009

physics
A wheel of diameter 0.700 meters rolls without slipping. A point on the top of the wheel moves with a tangential speed of 2.00 m/s with respect to the ground. 1. If the wheel suddenly stops spinning and skis along the ground then a. v=rù b. v>rù c. v<r&...
January 20, 2009

physics
Calculate the speed at the edge of a disc of radius 8.5 cm that rotates at the rate of 4 rev/s. Answer should be in units of m/s Thanks
January 20, 2009

physics
a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post ...
January 20, 2009

physics
i am sorry but i don't get how to do it
January 20, 2009

physics
person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post on...
January 20, 2009

chemistry
Given the following reaction: 4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 2.46 moles of CO2 react completely? moles
January 20, 2009

physics
a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post ...
January 20, 2009

phil
1. the roosevelt corollary was first put into effect in a. dominican republic b. hawaii c. cuba d. puerto rico i think it is A
January 19, 2009

history
i don't get why it's not A
January 19, 2009

history
1.Which best describes the US foreign relations or policies for the entire 19th cnetury a. american foreign policy frequently became entwined in the issues raised by conflicts between european powers b. the united states maintained a small military and naval establishment ...
January 19, 2009

physics
A quarterback throws the football to a stationary receiver who is 18.3 m down the field. Football is thrown at an angle of 44.9 degrees to the ground. Acceleration is 9.81 m/s2. What initial spped must the quarterback throw ball to reach receiver and what is the highest point ...
January 19, 2009

biology
Suppose that for an organism, 2n=8. How many chromosomes do the organism's gametes contain?
January 19, 2009

chem
I have a problem i don't get... H3PO4+3NaOH -> 3H2O+Na3PO4 How many moles of Na3PO4 will be produced from 1.7 moles of NaOH in the presence of excess H3PO4?
January 18, 2009

physics
225
January 16, 2009

algebra II
y=mx+b (x,y) You multiply x by m, the slope. You get to y by adding b. (2,-4) You multiply 2 (x) by -1/3 (m), the slope. You get to -4 (y) by adding -3.33 (b) = -10/3 Therefore, y=(-1/3)x-(10/3) The next one is done the same way.
January 14, 2009

algebra II
Find the equation of the line With a slope of 2/3 that goes through the point (4, 5) With a slope of (-1/3) that goes through the point (2, -4) With a slope of 3 that goes through the point (-5, -1)
January 14, 2009

english
i think so what do you say
January 14, 2009

english
but do he really admire his father
January 14, 2009

english
i think dislike
January 14, 2009

english
What is the speaker's attitude towards his father? Father My father knows the proper way The nation should be run; He tells us children every day Just what should now be done. He knows the way to fix the trusts, He has a simple plan; But if the furnace needs repairs, We ...
January 14, 2009

business
What is a microsoft surface? And how could I make it better?
January 13, 2009

computer
What is a microsoft surface? And how could I make it better?
January 13, 2009

english
Ozymandias I met a traveller from an antique land Who said: Two vast and trunkless legs of stone Stand in the desert…. Near them, on the sand, Half sunk, a shattered visage lies, whose frown, And wrinkled lip, and sneer of cold command, Tell that its sculptor well those ...
January 13, 2009

english
Ozymandias I met a traveller from an antique land Who said: Two vast and trunkless legs of stone Stand in the desert…. Near them, on the sand, Half sunk, a shattered visage lies, whose frown, And wrinkled lip, and sneer of cold command, Tell that its sculptor well those ...
January 13, 2009

Algebra
Sorry, I was thinking PERPENDICULAR to a vertical line, so the answer would NOT be 0 (a horizontal line), it would be undefined (another vertical line alongside the original vertical line).
January 13, 2009

Algebra
VERTICAL LINE: No slope (or "undefined" slope) HORIZONTAL LINE: Slope=0 (by the way, a vertical line is "undefined" because the formula used to find the slope, (y2-y1)/(x2-x1), has a denominator of 0 when the line is straight up and down, and you can NEVER ...
January 13, 2009

chemistry
Do polar and non-polar substances mix
January 13, 2009

english
 Ozymandias   I met a traveller from an antique land Who said: Two vast and trunkless legs of stone Stand in the desert…. Near them, on the sand, Half sunk, a shattered visage lies, whose frown, And wrinkled lip, and sneer of cold command, Tell that its sculptor...
January 13, 2009

english
3-- According to the poem, king Ozymandias had the following wordswritten on his statue: "Look on my works, ye Mighty, and despair!' What message was this meant to tell the people of his time long ago?
January 13, 2009

english
I met a traveller from an antique land Who said: Two vast and trunkless legs of stone Stand in the desert…. Near them, on the sand, Half sunk, a shattered visage lies, whose frown, And wrinkled lip, and sneer of cold command, Tell that its sculptor well those passions ...
January 13, 2009

social studies
what happened to buddhism in india
January 12, 2009

social studies
How did Buddha try to change the lives of people in India?
January 12, 2009

chemistry
Do polar and nonpolar substances mix?
January 12, 2009

Chemistry
Do I have to add c and h number together?
January 12, 2009

Chemistry
Calculate the electronegativity differences between the following atoms: 1.C-H 2.O-H 3.C-O
January 12, 2009

music
In which city did jazz take hold? Why?
January 12, 2009

music
What were the beginnings of music in America that developed into jazz?
January 12, 2009

writing
1. High school is the time when some students begin to look for part-time employment. What is  a good part-time job for someone your age? Why would this job be appropriate for a teenager?
January 11, 2009

Algebra II
Maria and Zoe are taking Biology 105 but are in different classes. Maria's class has an average of 78% with a standard deviation of 5% on the midterm, whereas Zoe's class has an average of 83% with a standard deviation of 12%. Assume that scores in both classes follow ...
January 10, 2009

Math - Quadratics
well to start you take they first number and divide is by pi... thats all im givin ya
January 8, 2009

Calc
Let f be the function given by f(x)=2ln(x^2+3)-x with domain -3 is less than or equal to x which is less than or equal to 5 a) Find the x-coordinate of each relative maximum point and each relative minimum point of f. Justify your answer. b) Find the x-coordinate of each ...
January 8, 2009

chemistry
What mass of iron contains the same number of atoms as 70.05 g of nitrogen?
January 8, 2009

6th grade
Her success rate was 14% however you need to subtract 3 to the second power with a subponent of 15 + 67% of 98 and thats your answer its really esy. I am only in 4th grade and u in like junior high!!!! wow STUPID!!!
January 6, 2009

chemistry
where is the 0.3740 coming from
January 5, 2009

math
what is the distributive property
January 4, 2009

Calculus
find the tangent line, graph both of them
January 4, 2009

CACULUS
BUT MY MC ANSWERS FOR A IS NOT THERE... A)0 B)1 C)-14 D)-24 E)26 WTF??
January 4, 2009

CACULUS
I GOT MY ANSWER IS B=4 AND A=2 IS IT RIGHT??
January 4, 2009

CACULUS
If the function f(x) is differentiable and f(x)= {ax^3 + 6x, if x≤1 {bx^2 + 4, if x>1 then a = What do I do?? No idea what's going on..
January 4, 2009

Algebra 1 Question
50 - 10X = -9 -10X = -59 X = 59/10
January 4, 2009

Algebra
a(h^2-k^2)-b(k-h)
January 2, 2009

Algebra
49(a-b)^2-(c-d)^2
January 2, 2009

PHysics
Why don't you?
December 28, 2008

Physics Lab
I'm doing a lab on centripetal force but I'm not sure how to make the graphs. If you search for "centripetal force lab" on Google and click "I'm Feeling Lucky" it will take you to the exact lab I'm doing. I'm supposed to graph Fc vs. Vt...
December 18, 2008

Math
Thanks
December 17, 2008

Math
The directions are: Write each ratio as a unit rate. What is a unit rate?
December 17, 2008

match check
Both sides are equal to 6x-18, so both are the same line, meaning every point is intersecting on the lines, so the answer is (c). Move the decimal 10 places to the right, since that's what the exponent is. You only moved it 8 places.
December 16, 2008

us history
you guys are really stupid. its B. the catholics went to freaking maryland. are you freakin kidding me? and the craftsmen were all in the North. ever heard of a freakin artisan?
December 14, 2008

MGT
You purchase an electronic item and it does not fulfill the promises that the company advertised. In addition, this electronic item causes injury to you. Assume that this civil case will be taken all the way to the appellate court. Outline and describe the basic legal steps ...
December 12, 2008

Chemistry
Um how do i balance these word equations for chemistry... I think I'm suppose to look them up on a common table of ions and then I don't know wat to do ferric Oxid --> iron oxygen what exactly am i suppose to do please tel me thr throught process that's suppose ...
December 11, 2008

Physics
work=forcexdistancexsin(angle)
December 10, 2008

chemistry
The half-life of polonium-218 is 3.0 min. If you start with 16 mg of polonium-218, how much time must pass for only 1.0 mg to remain?
December 10, 2008

Chemistry
dispersion forces < dipole-dipole interactions < hydrogen bonds
December 2, 2008

Math - help really needed
1+tan^2x/tan^2x ^ I split that fraction, making the 1/denom. a fraction, and adding it to the tan^2/denom fraction.
December 2, 2008

Math - help really needed
You actually get (1/tan^2x)+1, which is cot^2 + (csc^2x-cot^2x), which is csc^2x, which is 1/sin^2x. And that's your answer. (You could only cancel out the tan^2 if it were (Some #)(tan^2x)/tan^2x, rather than (1)+(tan^2x)/tan^2x. Dividing is the inverse of multiplying, so...
December 2, 2008

Math - help really needed
I'll give you a hint: Try replacing the 1 with tan^2x/tan^2x. After add that to 1/tan^2x, replace the denominator (the tan^2x) with sin^2/cos^2.
December 2, 2008

Math - help really needed
PYTHAGOREAN IDENTITIES: sin^2 + cos^2 = 1 (a^2 + b^2 = c^2) sec^2 - tan^2 = 1 csc^2 = cot^2 = 1 (the co-version of the above) (1/cosx)-(cosx/1)=sinxtanx To subtract those two, you need a common denominator, so multiply the (cosx/1) by (cosx/cosx). When you subtract them, the ...
December 2, 2008

Accounting
How and why variances are used?
December 2, 2008

chemistry
c,d
November 23, 2008

7th grade
93+
November 20, 2008

English
Was it a baseball game
November 19, 2008

Physics
( And the answer's supposed to be 0.131 )
November 19, 2008

Physics
In a popular amusement-park ride, a cylinder of radius 3.00 m is set in rotation at an angular speed of 5.00 rad/s (counter-clockwise). The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction between...
November 19, 2008

Physics
I think the first sentence is extra information. Here's my work: Change in arc/change in radians = 757 / 184.9 = 4.09 meters To get the change in arc, I did: 900m - 143m = 757 m To get the change in radians, I did: 70pi radians - 35 radians = 184.9 radians Is my answer of ...
November 19, 2008

Physics
When a wheel is rotated through an angle of 35 degrees, a point on the circumference travels through an arc length of 2.5 m. When the wheel is rotated through angles of 35 rad and 35 rev, the same point travels through arc lengths of 143 m and 9.0 X 10^2 m, respectively. What ...
November 19, 2008

1st grade
The loaves of bread have ____ perfectly
November 17, 2008

Math
they have a physical fit
November 13, 2008

biology
1. Clinique makes an antiwrinkle cream that you put on the skin next to your eyes. The cream contains water-filled microcapsules that gradually burst when exposed to skin heat. The cream is approximately 85% water. Knowing that skin cells contain 70% water, explain why this ...
November 12, 2008

Math
A number multiplied by itself and then by itself again gives -1,000. What is the number?
November 12, 2008

grade 8 LA/ English
one of the words is relate
November 10, 2008

grade 8 LA/ English
please answer: what are inflected forms and run on derivitaves? the question is: For each of the words on the table, write down both as an Inflcted Form and a run on derivitave.
November 10, 2008

language arts
ahh ok thanks
November 10, 2008

language arts
thank you.. so like for the word laugh, it could vary, like laughing, laughed, etc.?
November 10, 2008

language arts
what are inflected forms and run on derivitaves?
November 10, 2008

7th grade pre algebra
i like chicken
November 6, 2008

math
idk dude
November 6, 2008

physics
A 150 N/m, 5 m spring on a 26 degree incline is compressed 2.3 m and a 5 kg block is placed on it. If we neglect friction, how far up the incline from where it starts will the block travel? How fast will it be traveling when it is 0.2 m up the incline from where it starts?
November 5, 2008

english 3 gothic elements
Support the theme "evil can infect people that seem upright."
November 4, 2008

english
14 line ten syllable poems
November 4, 2008

Math
Thanks!
November 3, 2008

Math
There were 60 students who tried out for the school play. Only 0.7 of the students were selected to be in the play. What fraction of the students were not selected to be in the play?
November 3, 2008

Math riddle PIZZAZZ Worksheet
U NEED TO ASK A TECHER
October 30, 2008

6th grade Math
Ok, thanks..
October 29, 2008

Pages: <<Prev | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | Next>>

Search
Members