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niki
Questions and answers by visitors named
niki
Questions (51)
What is the balanced ionic equation between bromine and sodium bisulfite??? thanks
5 answers
6,339 views
how do I convert (ln) y= a*b^x to base of e??
I have an equation i have found first of all using the same set of data which is y
3 answers
394 views
can you tell me somthing that queen nefertiti did that was important?
1 answer
366 views
what the angle between the tangents at T?
1 answer
441 views
An angles measure is 3 times of its complement. find the measure of the angle and the measure of its complement.
2 answers
932 views
did i do this right?
The hypotenuse of a 30 ¨C 60-90 right triangle measure 18cm. What are the lengths of the longer leg and
3 answers
831 views
The treadmill display indicated that Joanna had completed 30% of her workout with 35 minutes remaining. How much time had she
5 answers
544 views
The solubility of compound A in ethanol is 0.8 g per 100 mL at 0°C and 5.0 g per
100 mL at 78°C. What is the minimum amount of
5 answers
2,939 views
y=2x squared -8x+7 what is this equation in vertex form?
1 answer
382 views
Why was geroge washingtin elected
1 answer
290 views
what is the LCM of 8 12 and 5
6 answers
472 views
How does she know everything is she one of the tutors?
3 answers
325 views
what is the greatest common factor using prime factoraztion for 90 and 126
3 answers
393 views
1/3*4=
6 answers
741 views
Traniers measure horses in hands the distance acrosss an adults plam the average height of a horse is 15 1/2 hands if a hand is
7 answers
441 views
1/4*50/1= (2 12/4)=(2 3/4)
9 answers
247 views
a water cooler contains 5 gallons of water.if drink 3/5 gallon for each of the next 6 days how many gallons will be left in
19 answers
1,105 views
multiply a mixed number by a proper fraction ? results in a number greater than 1.
what goes where the ? mark is
4 answers
693 views
simplify 9qt9pt
4 answers
281 views
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The
2 answers
537 views
An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to
1 answer
506 views
A glass window pane is exactly 23 cm by 38 cm at 10oC. By how much has its area increased when it temperature is 49oC, assuming
3 answers
519 views
An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to
1 answer
651 views
An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to
3 answers
1,916 views
The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by
4 answers
793 views
at 40 degree C , the vapour pressure of water is 55.3 mm of hg. calculate the vapour pressure at same temp. of 10%aques solution
3 answers
1,092 views
1. On final examination in Business Law, the mean was 68 and the standard deviation was 12. Determine the standard scores of
3 answers
1,051 views
For a given month, a random sample of 30 sales girls from a superstore has a sample mean of salary of RM 800 with standard
4 answers
525 views
A metal sphere of radius r is dropped into a tank of water. As it sinks at speed v, it experiences a
drag force F given by F = kr
4 answers
2,998 views
if you know the number of faces on a pyramid you know the number of vertices true or false
1 answer
343 views
Use the Midpoint Rule to approximate the integral
The integral from 2 to 7 of (–1x–6x^2)dx
1 answer
407 views
there are 1,320 ways for three students to win first,second,third place during a debate match. how many students are there on
4 answers
1,608 views
three students are running a race .how different ways can they finish the race
1 answer
380 views
for the function g(x)=5x^6-3x^3+x^2-x, list the possible rational zeros of g(x) and then use synthetic division to factor g(x)
1 answer
362 views
As pure elements. all of the halogens are diatomic molecular species. their melting points are: F2, 85 K, Cl2 239 K, Br2 332 K,
4 answers
1,790 views
Analysis of aluminum-zinc alloy
Mass of gelatin capsule 0.1284 g ambient temp. 22c mass of capsule plus alloy sample 0.3432g
2 answers
741 views
i need help in health subject for my son 5 grade
Question 1- connect suppose you have a cold. this affects your physical health.
4 answers
810 views
A 7.85 g sample of a compound with the empirical formula C5H4 is dissolved in 301 g of benzene. The freezing point of the
3 answers
1,996 views
H2o2+3i+2h -----> I3+2H2o
In the first 10.0 second of the reaction the concentration of I dropped from 1.000M to 0.868M a)
2 answers
881 views
A bottle of water costs $1.50. Explain how you would make a graph of four ordered pairs to model the total cost of the water in
7 answers
5,875 views
the average yearly utility costs on Middleton is $1722 with stdev of 146. assume that the utility costs follow a normal
2 answers
577 views
1) what potential impurities were removed during recrystallzation?
2) two solids with different identities are frequently mixed
3 answers
441 views
1)what potential impurities were removed during solventless aldol recrystallzation?
2) two solids with different identities are
1 answer
400 views
40 ml of carbon dioxide was collected and is at 10 degree celsius and at 740 mm pressure.Calculate its volume at STP.
1 answer
385 views
A company sells its product for $79. The company has marginal costs of $37 and annual fixed costs of $95,000. What is the annual
2 answers
624 views
A fertilizer covers 5/8 square foot in 1/4 hour.
i don't understand how to work out this math problem. By the way i'm in 6th
12 answers
4,204 views
when only the cold water valve is opened, a washtub will fill in 8 minutes. When only the hot water valve is opened, the washtub
3 answers
1,601 views
Find an eqaution for the line passing through (1,3) and perpendicular to the line 3y=-2x+6
1 answer
329 views
Enter your answer and show all the steps that you use to solve this problem in the space provided.
A party store offers small
4 answers
1,891 views
The amount of money in cents in a jar containing d dimes and some nickels and quarters if there are 8 times as many nickels as
2 answers
764 views
Consider the function f(x) whose second derivative is f′′(x)=8x+5sin(x). If f(0)=2 and f′(0)=3, what is f(x)?
1 answer
321 views
