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richard

Questions (60)

the amount of aluminum in a 100-g sample of the metal is
1. 1 answer
2. 168 views
the math class had 29 enrolled students while 34 students were enrolled into both classes, how many are enrolled in only one of
1. 6 answers
2. 2,249 views
the math class had enrolled students while 34 students were enrolled into both classes, how many are enrolled in only one of the
1. 1 answer
2. 500 views
If y = 3 x – 2 , x = 3 t + 2 and t = 3 k – 2 , find an expression for y = f ( k ).How do I solve for the expression. Can
1. 1 answer
2. 237 views
A certain company produces vinyl for records in three grades (A, B, and C). Over time, grade A vinyl has a 3% defective rate,
1. 1 answer
2. 327 views
if you made a stack of nickels 100 inches tall,how many nickels would you need
1. 11 answers
2. 1,285 views
How would you use series to evaluate the lim(x->0) of (x-arctanx)/x^3? I'm getting stuck, and the answer says it's 1/3 but I
1. 1 answer
2. 426 views
How would you determine the power series of 1/(1-x)^3. I know that the series of 1/(1-x) is x^n, but how would you manipulate it
1. 3 answers
2. 378 views
there are 20 students in mark`s homeroom class. Ten percent of the students in marks homeroom class are also in art class He
1. 2 answers
2. 837 views
dy/dx - y/x = 0I got 1/x, but I am not sure if this is right or not.
1. 1 answer
2. 275 views
a ball projected vertically upwards from the top of the tower 60 meters high with a velocity of 30 metersper second. what is the
1. 11 answers
2. 3,668 views
a 2kg stone is dropped from the top of a 20 buliding (a) at what height does its potential energy energy equal to its kinetic
1. 1 answer
2. 489 views
3^(n+1)-3^(n-2)Need help simplifying this please.
1. 4 answers
2. 392 views
use pascal's triangle to expand the expression(2x-3y)^3
1. 3 answers
2. 1,254 views
an object with a volume of one cu ft , weighing 150 lbs. is embedded in the sediment at a depth of 99 fy. in the ocean harbor.
1. 1 answer
2. 376 views
How many grams of O2 are needed to produce 45.8 grams of Fe2O3 in the following reaction? 4Fe(s)+3O2(g) - 2Fe2O3(s)
1. 1 answer
2. 836 views
both my hundreds and units digits are one-half of my tens digit.the sum of my three digits is 16. what am i?
1. 2 answers
2. 593 views
Rewrite the passage below correcting any errors of grammar and usageThe mechanic drove out the car to Joe that was lubricated.
1. 2 answers
2. 695 views
What happened when two fruit companies merged?
1. 4 answers
2. 3,312 views
a 4 digit number my 2 nd digitis twice my 3 digit the sum of all my digits is 3 times greater than my last digit the productof
1. 1 answer
2. 396 views
The cation M2+ reacts with NH3 to form a series of complex ions as follows:M2+ + NH3 M(NH3)2+ K1 = 102 M(NH3)2+ + NH3 M(NH3)2 2+
1. 4 answers
2. 2,100 views
What opinion might they have of the author? What could you as a writer do to prevent this problem?
1. 3 answers
2. 391 views
How might readers react if the topic sentences in an essay did not coincide with the supporting points, and why would their
1. 1 answer
2. 405 views
Direct verse indirect cost Estep Construction Company is composed of two divisions: (1) Home Construction and (2) Commercial
1. 3 answers
2. 1,301 views
propyl Bromide reacts with Mg, Propanone, H+ to yeild what?
1. 1 answer
2. 358 views
Hydrogen gas can be produced in the lab by the reaction of magnesium metal and hydrochloric acid. Mg + 2 HC -> MgCl2 + H2 How
1. 1 answer
2. 1,059 views
What is the [OH-] for a solution at 25°C that has [H3O+] = 8.23 × 10-2 M?
1. 3 answers
2. 1,096 views
A 25.00-mL sample of 0.723 M HClO4 is titrated with a 0.273 M KOH solution. The H3O+ concentration afterthe addition of 10.0 mL
1. 4 answers
2. 6,628 views
what is the verb tense in this sentence? Education is contributing a good role of successful financial planning.
1. 2 answers
2. 532 views
1/m-m/2=6X+5/12
1. 1 answer
2. 297 views
we have a ring that has an indian head marking on the inside of the ring,do you know what it means, who made it, how old it is,
1. 1 answer
2. 489 views
what are 4 possible tune-ups to help you keep a postive attitude?
1. 1 answer
2. 257 views
3/5 + 1/10=?i got 7/10 or 12/20, which one is correct?
1. 1 answer
2. 300 views
2. What role did Totalitarianism play in the creation of music particularly in Germany and the Soviet Union during the
1. 1 answer
2. 523 views
kk this is what i didV=strt(3*k=8.31*T=1365)/m=5.32*10^-26
1. 1 answer
2. 361 views
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L
1. 6 answers
2. 943 views
Young's Modulus (Y) 20 X 1010 N/m2Shear Modulus (S) 8.1 X 1010 N/m2 Bulk Modulus (B) 16 X 1010 N/m2 The table to the above
1. 2 answers
2. 979 views
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L
1. 3 answers
2. 1,073 views
Graph three periods of the function. (identify period and phase shift and intercepts)y = f(x) = √3/2 sin(2x) - 1/2 cos(2x) if
1. 2 answers
2. 970 views
it is always true that if -1 ≤ x ≤ 1 thencos(Arccos(x)) = x Give an example showing that Arccos(cos(x))= x need NOT be true
1. 1 answer
2. 510 views
Find all solutions for the following equation in the interval0 ≤ x <2pi 3cos(3x)=6 i got cos3x=2, don't know how to go further
1. 6 answers
2. 643 views
Why did Mao Zeodong led the cummunists to power in china
1. 1 answer
2. 829 views
What will be the mass in grams of hydrogen atoms (only) that will be present in 22.2 g of compound A (XH3)?
1. 1 answer
2. 348 views
Magnesium reacts with HCl(aq) to form MgCl2 and H2(g)____ Mg(s) + ____ HCl(aq) -----> ____ MgCl2(aq) + ____ H2(g) The following
1. 1 answer
2. 1,016 views
The actual chemistry question was, given that there are 4.19 g of C6H6 how many moles do you have and this is how I solved it
1. 1 answer
2. 367 views
How many moles are in 13grams of C6H6. should this question be broken down into its imperical formula (CH)6 and calculate the
1. 1 answer
2. 521 views
How many moles are in 13grams of C6H6. should this question be broken down into its imperical formula (CH)6 and calculate the
1. 1 answer
2. 470 views
What were the main elements of Johnson’s War on Poverty?
1. 1 answer
2. 463 views
What were the main elements of Johnson’s War on Poverty?
1. 1 answer
2. 466 views
what is air? a compound, a mixture, a solution, or an amalgam
1. 1 answer
2. 313 views
A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 3.50t2 - 2.50t3, with x in meters and t in
1. 4 answers
2. 1,277 views
have summer project. need to do timeline on the book "THE WALKABOUT" need to know how to go about doing this correctly.
1. 1 answer
2. 365 views
imagine many years from now someone is writing a story about my life .how will the author describe me? what major
1. 1 answer
2. 443 views
28 x 15 simplify by using distributive property,
1. 7 answers
2. 317 views
what is a motief
1. 1 answer
2. 318 views
what is hardware
1. 2 answers
2. 836 views
write 3x^2 +8x-25 in the form a(x+h)^2,where a,h and k are real numbers
1. 2 answers
2. 565 views
determine Q whenT=73.16Given T=47.4é^0.31Q (It is e raised to 0.31Q where Q=Theta
1. 1 answer
2. 356 views
if a substance is known to enter a cell by diffusion, what effect would raising the temperature have on the cell? Why does it
1. 4 answers
2. 1,015 views
What is the order analytical method fundamental to ? I know two of them are taxonomy, biochemistry. I need to know the third
1. 1 answer
2. 470 views

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