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Francis
Questions and answers by visitors named
Francis
Questions (104)
A wave has a speed of 340m/s and a period of 0.28ms. what's the wavelength?
so I worked this and I got 95.2m but the answer to d
6 answers
3,743 views
M varies directly as the square of N. If N increases by 10%, find the percentage change in M
6 answers
3,705 views
A boy 14m tall,stood 10m away from a tree of hight 12m calculate correct to the nearest degree, the angle of elevation of the
4 answers
179 views
How did the Homestead Strike influence the fact that President Grover Cleveland won the 1888 election?
Thanks in advance. Try
1 answer
380 views
Describe what maquiladoas are where they are located.
1 answer
294 views
How has stricter enforcement along the U.S. border influenced migration?
1 answer
307 views
2e3 + 3e
--------------------------------------... -5e � × � -15e2 + 20e --------------------------------------... 10e5 +
3 answers
426 views
C6H5NH2 + H2O C6H5NH3+ + OH-
1. Aniline, a weak base, reacts with water according to the rxn above. a. A sample of aniline is
3 answers
2,103 views
Describe the site & situation of Strasbourg.
1 answer
344 views
What will probably happen to the national identity or individual states as the European Union becomes stronger and a more
2 answers
832 views
Physical Characteristics Of Strasbourg
4 answers
1,033 views
define:
nation state nation-state
2 answers
891 views
What was Jefferson's laissez-faire policy? Can you Give an example of it.
2 answers
551 views
Two vectors A and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= -5.00k + 2.00i. What is the angle
1 answer
425 views
An entertainer juggles balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in
4 answers
1,377 views
I have a container which hold 30ml of fresh water that I need to heat to boiling using electricity run through an assumed
1 answer
379 views
Aa particular bicycle is 25% effificent in converting the energy of a cyclist to mechanical energy (that is, she puts in four
1 answer
476 views
a bike is 25% efficient in converting energy of the bicyclist to mechanical energy. If a cyclist is travelling along a pathway
3 answers
556 views
I am writing a paper about a new amendment proposal to the Bill of Rights proclaiming that people should be able to marry who
1 answer
414 views
If America were to propose an amendment allowing children to be represented as voters through their guardian or parent do you
1 answer
398 views
What are the following numbers rounded to the nearest thousandth: 0.00673, 63.4982, 4.8919, 5.9198.
4 answers
1,303 views
How has the payment of health care providers evolved over time? What caused these changes?
1 answer
612 views
My teacher gave us a reprt to do a brochure on italy such as currenices, goverment, sports, restaurants, and so far I have about
4 answers
391 views
If x and y are complementary angles and 5 tan x-12=0,calculate by using a diagram the value of 2sin(squared)x+cos y.
3 answers
553 views
1). What is a "cognate"?
2). Why is learning cognates the most efficient and rapid way to learn to read, speak, increase
2 answers
737 views
What national interests lead to ultranationalism?
1 answer
322 views
Which underlying circumstances occurring during the interwar period of 1919 to 1939 may have influenced whether or not
1 answer
318 views
List the unique circumstances of the interwar period that may have led to ultranationalism.
3 answers
363 views
A slingshot with k = 400. N/m is pulled back 0.0500 m to shoot a 0.100-kg stone. If the slingshot projects the stone straight up
5 answers
1,033 views
A slingshot with k = 400. N/m is pulled back 0.0500 m to shoot a 0.100-kg stone. If the slingshot projects the stone straight up
1 answer
444 views
An essay about("Be quiet,"the leader hissed."they, mustn't know we are here".
4 answers
344 views
A sample of iron weighing 15.0 g was heated with potassium chlorate (KClO3) in an evacuated container. The oxygen generated from
3 answers
978 views
1) Given that F(x) = -5+7x^2, find and simplify:
8F(x) = F(8x) = 2) Find the domain of the function: f(x) = -2x+12 q(v) =
1 answer
384 views
find the equation of the perpendicular bisector of the line joining P(2, -4) to Q(-5,1)
A. 8y-14x 13=0 B. 8y-14x-13=0 C. 8y
7 answers
1,314 views
Integrate(1+x/x^3)dx
Don't know how to go bout this, if the numerator was a whole number it would ve been easier for me, Pls help
3 answers
375 views
Find the number of ways, the digits 0,1,2 and 3 can be permuted to give rise to a number greater than 2000.
Please I need an
9 answers
3,034 views
if p:q=2/3:1/6 & q:r=3/4:1/2. find p:q:r
2 answers
1,086 views
(243/32)^-1/5 ¡Á 2^-2
1 answer
276 views
9x^2 6xy 4y^2 is a factor of 27x^3 - 8y^3, find the other factor.
2 answers
787 views
factorize completely X^2 + 2X^2 - 15X / 2X^2 - 18
3 answers
852 views
Differentiate
Y = 1/SinX^2
2 answers
558 views
2x^2 + 2y^2 - 8x + 5y + 10 = 0
1 answer
250 views
Calculate the energy required to vapourise 50g of water Initially at 80¡ãC if the specific heat capacity of water is 4.2
5 answers
1,199 views
A solid of mass 1kg suspended by a string is completely immersed in water. If the tension in the string is 5N, calculate the
5 answers
1,495 views
How to solve this system?
x + [(3x-y)/(x^2+y^2)] = 3 y - [(x+3y)/(x^2+y^2)] = 0
1 answer
342 views
If a pond can support up to 10, 000 fish, the rate of growth of the fish population is jointly
proportional to the number of fish
1 answer
661 views
Show that a¡Á(b c) = (a¡Áb) (a¡Ác), given that a =(A B), b =(B C), c =(C A).
WORKINGS ... given, a¡Á(b c) = (a¡Áb)
1 answer
359 views
differentiate tan-1(2x/1-x^2)
1 answer
453 views
Find ¡Ò[dx/(x-2)(x+3)(x-4)]
this is really confusing and I need help with it.
1 answer
370 views
Evaluate lim x->0 (Sin^3 3x - 3x^3/x^3 x^4)
I got zero (0) to be my answer by imputing 0 in place of x but am not so sure if the
3 answers
406 views
lim x->0 (Sin^3 3x - 3x^3)/(x^3) (x^4)
2 answers
497 views
The volume of a solid
1 answer
420 views
If Y = e^tanx, find dy/dx
1 answer
352 views
If Y = SecXTanX, find y" 4y' 4y.
I can easily do the second part of the question if I could if only I could find d first and
2 answers
509 views
The line x 7y=5 cuts the circle x^2 y^2=15 at the points P & Q. Find: a) P & Q. b) the midpoint of PQ.
5 answers
1,085 views
The line x plus 7y=5 cuts the circle x^2 plus y^2=15 at the points P & Q. Find: a) P & Q. b) the midpoint of PQ.
(I don't know
4 answers
416 views
What's the coefficient of x^2 in the expansion of (2 - 1/2x)^4
(I've no idea hw to go bout this & I would also like to know under
1 answer
443 views
find the direction cosines of the vector joining the two points (4,2,2,) & (7,6,14)
(this is new to me, used to think it was just
5 answers
2,952 views
What is 21.21% rounded to two decimal places?
4 answers
612 views
3.Max says there were 6 students wearing shorts in his math class. He is not sure how many people were in the class, total, but
4 answers
1,172 views
4.In Amy’s English class, 30% of the students play an instrument. She does not know how many in the whole school play an
2 answers
831 views
1.A restaurant surveys 60 of its customers about their new menu. 48 of the customers that take the survey prefer the new menu.
A.
4 answers
2,082 views
Mia took a test with 60 multiple-choice questions. Her teacher told her she got 88% correct.
A.Write and solve a proportion to
4 answers
1,221 views
3.Josh has a huge marble collection. He counts 280 marbles that are red, and he estimates that this is about 10% of his
7 answers
1,038 views
Show that r = 1/4 - 3Cos¦È is polar form of an ellipse and find its centre.
pls can anyone could help with this.
1 answer
420 views
Assume venture Healthcare sold bonds that have a ten year maturity,a 12 percent coupon rate with annual payment,and a $1000 par
2 answers
942 views
A pilot wants to fly 430 miles per hour at 45 degrees north of east, but there is a westerly wind blowing 20 miles per hour.
3 answers
1,040 views
I am a number. Go round the corners of the given figure 4
times. When you add my value with the number of corners you have
5 answers
511 views
A car A is 300m behind a car B and both are travelling in the same direction at 25m/s. Both cars begin at the same moment to
2 answers
470 views
some have more than a hundred some have none
5 answers
287 views
Boxes are moved on a conveyor belt from where they are filled to the packing station 11.3m away. The belt is initially
3 answers
1,094 views
Youre travelling down the road in a car with a total mass(including passengers) of 2.24 X 10^3
a)What is the change in kinetic
1 answer
455 views
A uniform have metre rule,pivoted at 20cm mark balances horizontally when a mass of 50g is suspended from 4cm mark calculate the
10 answers
5,838 views
A cube of ice is taken from the freezer at -9.0°C and placed in a 71-g aluminum calorimeter filled with 261g of water at room
1 answer
912 views
At a steam power plant, steam engines work in pairs, the output of heat from one being the approximate heat input of the second.
3 answers
803 views
An observer on Earth sees an alien vessel approach at a speed of 0.44c. The Enterprise comes to the rescue, overtaking the
2 answers
593 views
A world-class sprinter can burst out of the blocks to essentially top speed (of about 14.9m/s) in the first 11.6m of the race.
2 answers
718 views
A sample of a curium isotope was roasted. It was determined that the product( curium oxide) contained 11,59% of oxygen.¿ What
4 answers
451 views
Calculate the specific heat capacity of substance x from the following data. A container made of the substance x has a mass of
4 answers
1,090 views
ABC is an isosceles triangle |BC|=10CM, A=55 degrees calculate AC
1 answer
410 views
Which of the different telescopes designed for the following specific types of electromagnetic waves has to be at the highest
1 answer
364 views
A man walks 800 meters on a bearing of 129 degrees.Calculate how far east he is from his starting point.
3 answers
455 views
A uniform metre rule AB is balanced horizontally at the 90cm mark with mass 0.2kg suspended from B. Calculate the mass of the
1 answer
412 views
The nutrition club serves a luncheon consisting of two dishes: A and B. Assume each unit of dish A has 4grams of fat, 4grams of
4 answers
1,104 views
1. State the method of inquiry in
biology, show how one can report? 2. List the usefulness of science to man any scientific
1 answer
272 views
A period of time where business and employment fall to a low level?
Can anyone help me
1 answer
180 views
Two similar rectangles ABCD and WXYZ such as AB=4cm, WX=5cm,XY=9cm.what are the corresponding sides.
4 answers
443 views
Two similar rectangles abcd and wxyz showing ab=4cm.wx=5cm,xy=9cm.find the other corresponding sides.
1 answer
291 views
Write a letter to your friend telling him or her three reason why you want to stop school
1 answer
377 views
The interior angles of a polygon is 5 times the exterior angle. If the sum of the interior angle is 5040. Find the exterior
5 answers
344 views
the third, fourth and fifth term of GP ar (k+3), (k+8) and (k+8) respectively. find the value of k hence determine the sum of
1 answer
91 views
The distance covers by a falling ball varies as the square of the time taken if a ball fall through 1800m I'm 15seconds.
1 answer
105 views
John sold a mobile phone costing kshs 3800 at a profit of 20%. He earned a commission of 22.5 on the profit. Find the commission
2 answers
109 views
How much NaCl (mol. wt. 58.5 g/mol) would be needed to make a 10% solution of NaCl in a final volume of 1 liter of water?
2 answers
45 views
Spatial summation of motor units occurs because:
Small motor nerves have a low threshold for producing nerve impulses Type I
1 answer
50 views
Small motor nerves have a low threshold for producing nerve impulses
Type I muscle fibers produce ATP aerobically Large motor
1 answer
55 views
Spatial summation of motor units occurs because:
Small motor nerves have a low threshold for producing nerve impulses Type I
1 answer
49 views
Increased muscle tension due to increased stimulation frequency is:
Temporal Summation Spatial Summation Size Principle Tetany
1 answer
41 views
Increased muscle tension due to increased stimulation frequency is:
Temporal Summation Spatial Summation Size Principle
1 answer
42 views
Reducing the extracellular Na+ concentration from a normal value of 150 mM to 75 mM would have what effect on the action
1 answer
56 views
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