Wednesday
April 23, 2014

Posts by bob


Total # Posts: 2,360

math
Suppose that humans walk about 10,000 steps perday 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 mile?

math
(6) Which equation is equivalent to 4^-x=8? a. log8 4=x b. logx = -4 c. log -x 4=8 d. log 4 8= -x

algebra
i think it is d

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

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

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

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?

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???

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.

physics
so is it A B OR C

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&ugra...

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

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 o...

physics
i am sorry but i don't get how to do it

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...

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

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 o...

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

history
i don't get why it's not A

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 beca...

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 ...

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

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?

physics
225

physics
225

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.

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)

english
i think so what do you say

english
but do he really admire his father

english
i think dislike

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 ha...

business
What is a microsoft surface? And how could I make it better?

computer
What is a microsoft surface? And how could I make it better?

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 p...

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 p...

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).

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 ...

chemistry
Do polar and non-polar substances mix

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...

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?

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 rea...

social studies
what happened to buddhism in india

social studies
How did Buddha try to change the lives of people in India?

chemistry
Do polar and nonpolar substances mix?

Chemistry
Do I have to add c and h number together?

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

music
In which city did jazz take hold? Why?

music
What were the beginnings of music in America that developed into jazz?

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?

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 ...

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

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 infle...

chemistry
What mass of iron contains the same number of atoms as 70.05 g of nitrogen?

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!!!

chemistry
where is the 0.3740 coming from

chemistry
where is the 0.3740 coming from

math
what is the distributive property

Calculus
find the tangent line, graph both of them

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

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

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..

Algebra 1 Question
50 - 10X = -9 -10X = -59 X = 59/10

Algebra
a(h^2-k^2)-b(k-h)

Algebra
49(a-b)^2-(c-d)^2

PHysics
Why don't you?

PHysics
Why don't you?

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,...

Math
Thanks

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

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.

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?

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 th...

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 ...

Physics
work=forcexdistancexsin(angle)

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?

Chemistry
dispersion forces < dipole-dipole interactions < hydrogen bonds

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.

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...

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.

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 n...

Accounting
How and why variances are used?

chemistry
c,d

chemistry
c,d

7th grade
93+

English
Was it a baseball game

Physics
( And the answer's supposed to be 0.131 )

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...

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 ...

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 ...

1st grade
The loaves of bread have ____ perfectly

Math
they have a physical fit

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 cr...

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

grade 8 LA/ English
one of the words is relate

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.

language arts
ahh ok thanks

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

language arts
what are inflected forms and run on derivitaves?

7th grade pre algebra
i like chicken

math
idk dude

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