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Francis

Questions (105)

The sum of 11 terms of an Appointment is 891 find the 1st 28th and 45th terms if the common difference is 15
1. 1 answer
2. 54 views
All of the following ions are in higher concentration in the extracellular fluid except:K+ Ca2+ Cl-
1. 1 answer
2. 131 views
All of the following ions are in higher concentration in the extracellular fluid except:K+ Na+ Ca2+ Cl-
1. 1 answer
2. 119 views
If a pre-synaptic neuron released a neurotransmitter onto a post-synaptic neuron and caused Ca2+ channels to open, what effect
1. 1 answer
2. 125 views
Reducing the extracellular Na+ concentration from a normal value of 150 mM to 75 mM would have what effect on the action
1. 1 answer
2. 118 views
Reducing the extracellular Na+ concentration from a normal value of 150 mM to 75 mM would have what effect on the action
1. 1 answer
2. 150 views
Increased muscle tension due to increased stimulation frequency is:Temporal Summation Spatial Summation Size Principle
1. 1 answer
2. 106 views
Increased muscle tension due to increased stimulation frequency is:Temporal Summation Spatial Summation Size Principle Tetany
1. 1 answer
2. 90 views
Spatial summation of motor units occurs because:Small motor nerves have a low threshold for producing nerve impulses Type I
1. 1 answer
2. 143 views
Small motor nerves have a low threshold for producing nerve impulsesType I muscle fibers produce ATP aerobically Large motor
1. 1 answer
2. 134 views
Spatial summation of motor units occurs because:Small motor nerves have a low threshold for producing nerve impulses Type I
1. 1 answer
2. 123 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?
1. 1 answer
2. 97 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
1. 1 answer
2. 266 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
1. 2 answers
2. 185 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. 1 answer
2. 193 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. 1 answer
2. 150 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
1. 4 answers
2. 429 views
Write a letter to your friend telling him or her three reason why you want to stop school
1. 1 answer
2. 511 views
Two similar rectangles abcd and wxyz showing ab=4cm.wx=5cm,xy=9cm.find the other corresponding sides.
1. 1 answer
2. 351 views
Two similar rectangles ABCD and WXYZ such as AB=4cm, WX=5cm,XY=9cm.what are the corresponding sides.
1. 2 answers
2. 533 views
A period of time where business and employment fall to a low level?Can anyone help me
1. 0 answers
2. 241 views
1. State the method of inquiry inbiology, show how one can report? 2. List the usefulness of science to man any scientific
1. 0 answers
2. 360 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
1. 1 answer
2. 1,196 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. 1 answer
2. 508 views
A man walks 800 meters on a bearing of 129 degrees.Calculate how far east he is from his starting point.
1. 2 answers
2. 527 views
Which of the different telescopes designed for the following specific types of electromagnetic waves has to be at the highest
1. 0 answers
2. 431 views
ABC is an isosceles triangle |BC|=10CM, A=55 degrees calculate AC
1. 1 answer
2. 485 views
M varies directly as the square of N. If N increases by 10%, find the percentage change in M
1. 4 answers
2. 3,865 views
Calculate the specific heat capacity of substance x from the following data. A container made of the substance x has a mass of
1. 2 answers
2. 1,193 views
A sample of a curium isotope was roasted. It was determined that the product( curium oxide) contained 11,59% of oxygen.¿ What
1. 3 answers
2. 564 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.
1. 1 answer
2. 839 views
An observer on Earth sees an alien vessel approach at a speed of 0.44c. The Enterprise comes to the rescue, overtaking the
1. 0 answers
2. 694 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.
1. 0 answers
2. 926 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. 0 answers
2. 1,041 views
A uniform have metre rule,pivoted at 20cm mark balances horizontally when a mass of 50g is suspended from 4cm mark calculate the
1. 10 answers
2. 6,059 views
Youre travelling down the road in a car with a total mass(including passengers) of 2.24 X 10^3a)What is the change in kinetic
1. 1 answer
2. 592 views
Boxes are moved on a conveyor belt from where they are filled to the packing station 11.3m away. The belt is initially
1. 1 answer
2. 1,232 views
some have more than a hundred some have none
1. 4 answers
2. 350 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
1. 1 answer
2. 546 views
I am a number. Go round the corners of the given figure 4times. When you add my value with the number of corners you have
1. 4 answers
2. 602 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.
1. 1 answer
2. 1,144 views
Assume venture Healthcare sold bonds that have a ten year maturity,a 12 percent coupon rate with annual payment,and a $1000 par
1. 0 answers
2. 1,059 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. 0 answers
2. 495 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
1. 6 answers
2. 1,143 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
1. 3 answers
2. 1,373 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.
1. 3 answers
2. 2,206 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
1. 1 answer
2. 928 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
1. 2 answers
2. 1,303 views
What is 21.21% rounded to two decimal places?
1. 3 answers
2. 691 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
1. 3 answers
2. 3,070 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. 1 answer
2. 515 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
1. 3 answers
2. 514 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.
1. 4 answers
2. 1,177 views
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
1. 4 answers
2. 4,026 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
1. 1 answer
2. 603 views
If Y = e^tanx, find dy/dx
1. 1 answer
2. 410 views
The volume of a solid
1. 1 answer
2. 488 views
lim x->0 (Sin^3 3x - 3x^3)/(x^3) (x^4)
1. 1 answer
2. 571 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
1. 2 answers
2. 479 views
Find ¡Ò[dx/(x-2)(x+3)(x-4)]this is really confusing and I need help with it.
1. 1 answer
2. 452 views
differentiate tan-1(2x/1-x^2)
1. 1 answer
2. 517 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. 1 answer
2. 426 views
If a pond can support up to 10, 000 fish, the rate of growth of the fish population is jointlyproportional to the number of fish
1. 0 answers
2. 763 views
How to solve this system?x + [(3x-y)/(x^2+y^2)] = 3 y - [(x+3y)/(x^2+y^2)] = 0
1. 0 answers
2. 418 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
1. 4 answers
2. 1,614 views
Calculate the energy required to vapourise 50g of water Initially at 80¡ãC if the specific heat capacity of water is 4.2
1. 4 answers
2. 1,326 views
2x^2 + 2y^2 - 8x + 5y + 10 = 0
1. 1 answer
2. 311 views
DifferentiateY = 1/SinX^2
1. 1 answer
2. 655 views
factorize completely X^2 + 2X^2 - 15X / 2X^2 - 18
1. 2 answers
2. 977 views
9x^2 6xy 4y^2 is a factor of 27x^3 - 8y^3, find the other factor.
1. 1 answer
2. 884 views
(243/32)^-1/5 ¡Á 2^-2
1. 1 answer
2. 343 views
if p:q=2/3:1/6 & q:r=3/4:1/2. find p:q:r
1. 1 answer
2. 1,164 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
1. 8 answers
2. 3,154 views
Integrate(1+x/x^3)dxDon't know how to go bout this, if the numerator was a whole number it would ve been easier for me, Pls help
1. 2 answers
2. 460 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
1. 7 answers
2. 1,486 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. 1 answer
2. 464 views
A sample of iron weighing 15.0 g was heated with potassium chlorate (KClO3) in an evacuated container. The oxygen generated from
1. 1 answer
2. 1,118 views
An essay about("Be quiet,"the leader hissed."they, mustn't know we are here".
1. 3 answers
2. 415 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. 0 answers
2. 550 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. 4 answers
2. 1,165 views
List the unique circumstances of the interwar period that may have led to ultranationalism.
1. 2 answers
2. 446 views
Which underlying circumstances occurring during the interwar period of 1919 to 1939 may have influenced whether or not
1. 0 answers
2. 383 views
What national interests lead to ultranationalism?
1. 0 answers
2. 382 views
1). What is a "cognate"?2). Why is learning cognates the most efficient and rapid way to learn to read, speak, increase
1. 1 answer
2. 856 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.
1. 2 answers
2. 616 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
1. 3 answers
2. 487 views
How has the payment of health care providers evolved over time? What caused these changes?
1. 0 answers
2. 702 views
What are the following numbers rounded to the nearest thousandth: 0.00673, 63.4982, 4.8919, 5.9198.
1. 3 answers
2. 1,402 views
If America were to propose an amendment allowing children to be represented as voters through their guardian or parent do you
1. 1 answer
2. 477 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. 1 answer
2. 490 views
a bike is 25% efficient in converting energy of the bicyclist to mechanical energy. If a cyclist is travelling along a pathway
1. 2 answers
2. 659 views
Aa particular bicycle is 25% effificent in converting the energy of a cyclist to mechanical energy (that is, she puts in four
1. 0 answers
2. 602 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. 1 answer
2. 445 views
An entertainer juggles balls while doing other activities. In one act, she throws a ball vertically upward, and while it is in
1. 3 answers
2. 1,473 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. 1 answer
2. 497 views
What was Jefferson's laissez-faire policy? Can you Give an example of it.
1. 1 answer
2. 650 views
define:nation state nation-state
1. 1 answer
2. 957 views
Physical Characteristics Of Strasbourg
1. 3 answers
2. 1,126 views
What will probably happen to the national identity or individual states as the European Union becomes stronger and a more
1. 1 answer
2. 937 views
Describe the site & situation of Strasbourg.
1. 1 answer
2. 416 views

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