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Matilda
Questions and answers by visitors named
Matilda
Questions (34)
Can someone please help me with the following?:
Factor each expression completely: x²-x-72 3x²-3x-168 Here is the way I have
1 answer
594 views
Calculate amount of milliliters of 2.0 M HCl needed to neutralize 0.15 mol of NaOH
2 answers
575 views
What can be a good picture of a modern situation of the ninth station of the cross when jesus falls the third time?
1 answer
329 views
the outer distance of a bicycle wheel is 95cm how many complete turns does the wheel make when the bicycle travels a distance of
3 answers
455 views
what is 18 percent of 240
1 answer
282 views
What is a bias paragraph?
1 answer
344 views
Hi, I am doing a practice test for my chemistry final and I do not understand one of the answer they gave for this
3 answers
613 views
Calculate the volume of oxygen at 27C and 740 mmHg which could be obtained by hesting 10g of potassium trioxochlorate (v)
3 answers
1,051 views
I am to write an historical investigation, and this is my first time writing something like that. Is an IB school. the question
1 answer
421 views
Given x^2+y^2=4, find the equation of the tangent line at the point (-1,sq.rt.3). Then, at what point is the slope 0? What point
3 answers
403 views
Some nucleus of 74X189 (atomic mass = 188.96191 u) undergoes - decay to become 75X189 (atomic mass = 188.95922 u). What is the
1 answer
432 views
At 2:00 pm, the temperature was12F. If the temperature dropped 5 degrees each hour, what was the temperature at 5:00 pm?
9 answers
6,012 views
in an attempt to to provide a means of generation of NO cheaply, gaseous NH3 is burned with 20% excess oxygen according to the
4 answers
1,421 views
How to derive cosh (3x) in terms of cosh (x) and sinh (x) ? Initially I start with 1/2 (e^3x+e^-3x) but I'm stuck from there
4 answers
1,644 views
The graph of x2 −6x+9+y2 +2y+1 = 25 is a circle. Where would the center of the circle be? What is the radius of the circle?
1 answer
367 views
Find the center and the radius of the following circles:
(a) x^2 +y^2 −6x+y=3 (b)x^2 +y^2 +8x=0 (c)x^2 +y^2 +2x−8y=−8
1 answer
292 views
The point P = (4, 3) lies on the circle x2 + y2 = 25. Find an equation for the line that is tangent to the circle at P. This
4 answers
2,544 views
The point P = (4, 3) lies on the circle x2 + y2 = 25. Find an equation for the line that is tangent to the circle at P. This
2 answers
612 views
The same shapes weigh the same amount. How much does each solid figure weigh?
1 answer
408 views
A drop of oil of volume 12^-10m^3 spreads out on water to make a circular film of radius 11^-2m calculate the thickness of the
4 answers
565 views
People have been abusing the environment through illegal mining. Write a letter to the Minister of lands and Natural resources
1 answer
321 views
N is a square
N is a cube N is an odd number N is divisible by twelve prime numbers. Find N
2 answers
539 views
6^(x-2)=1/1296
solve for x thanks please explain the steps..
1 answer
261 views
log4(2*256x^4)
i know that log4(2)+log4(256)+log4(x^4) = log2^2(2)+4+4log4(x) but now I am stuck thanks
1 answer
233 views
Condense the expression
1/2ln(2x-1)-2ln(x+1) = 1/2ln(2x-1)/2in(x+1) = ln((2x-1)^1/2/(x+1)^2) check my answer thanks
2 answers
207 views
A student takes out two loans to help pay for college expenses. The total amount of money borrowed is $8050. Both loans have
3 answers
373 views
A tree has a height of 15.86 meters. What is the angle of elevation (in degrees) to the top of the tree at a distance of 20.05
1 answer
218 views
Find a solution to the following system of equations. Enter your answer as an (x,y) coordinate pair.
x^2+y^2 = 82 x+y =−8 is it
1 answer
231 views
Given the following matrices A and B,
A=[x y B=[2 -8 −y] and 1] if the product of the matrices AB=[−23 x] , find a value of x
1 answer
411 views
Find the solutions to the given equation in the interval [0,2π)?
2sin^3(x)−sin(x)cos(x)=2sin(x) check my answers π 4π)/3
4 answers
346 views
expand the logarithm as a sum or difference and or contant multiple of logarithms
log _4 16xy^2 thank you.. I know you do this:
4 answers
350 views
i understand the concept of domain and range
domain--set of all possible inputs for the function range-set of all possible
1 answer
253 views
What are the examples of how the problem of gbv has displayed itself in the community
3 answers
198 views
Your uncle who had been oversees for ten years is coming back. Write a letter to your friend in another school telling him or
1 answer
131 views
Answers (14)
love you guys
I want to no
oxidation-reduction 2KBr+I2
A=1/r=1//0.175 5.714 R=329degree 11/x=0.175/0.42 0.175x=11*0.42/0.175 =26.4m
It fit for my home work and it fits WITH SPACES!!
I think its HE WONDERED WHY HE WAS FEELING SO JUMPY
Amanda says her quilt has 9 equal parts. Jeremy says it has 3 equal parts. Can they both be correct? Explain
21 litres
This very easy do it yourself Sorry
Question 1: A B C D Question 2: A C D Question 3: A B D Question 4: A B D
problems question 4
(a) According to table 4.1, by how much would coffee sales decline if the price of coffee increased by 20 percent? (b) If Starbucks raised its coffee prices by the same amount, would sales decline by more, less, or the same amount?
Using the gas equation, V1=499ml; T1=25C+273K=298 P1=740mmHg At s.t.p P2=760mmHg; T2=273K; V2=? V2= 499*740*273 /760*298 =445.1 ans
Thank you, so when I did that I got -137kJ. so is their answer wrong or mine. They had 400kJ.
