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Alternation of generations in plant permit:1. Both mitosis and meiosis. 2. Neither mitosis nor meiosis. 3. Only meiosis 4. Only
1. 1 answer
2. 18 views
A plant hormone called abscisic acid helps plants become dormant during cooler months. Which plant structure also helps with the
1. 3 answers
2. 29 views
The speed of a body is the distance it travels p unit of time and is represented by d=s*t. Sharice's car is traveling at 10
1. 5 answers
2. 19 views
Rewrite the equation 32 = -25 + 9 - x/x + 7 as two equations joined by "and"A) 32=-25 + 9-x/x+7 and x≠7 B)32=-25 + 9-x/x+7 and
1. 1 answer
2. 23 views
Consider the formula that relates distance, velocity, and time (d = vt). If you are interested in the time it takes for a snail
1. 7 answers
2. 46 views
Как развивалась порноиндустрия
1. 1 answer
2. 56 views
Goodbye.
1. 1 answer
2. 37 views
Bye let me sleep is there any app for this.
1. 1 answer
2. 46 views
If 3,p,q,24 are consecutive term of the arithmetic progression, find the value of p and q
1. 3 answers
2. 37 views
Find the 8th term of the exponential sequence whose first term is 3 and whose common ratio is 2
1. 1 answer
2. 40 views
Three qualities that can help Emma to archive her goals
1. 1 answer
2. 53 views
Which of the following is true of the government of Switzerland? Explain why.A. Nominal Federation with a figurehead leader B.
1. 1 answer
2. 58 views
q=D+is+partly+constant+and+partly+varies+with+v+when+v+=40,D=150,and+when+v=54,D=192+find the value of v when D =100
1. 1 answer
2. 109 views
9x+3(3x)+2=0
1. 1 answer
2. 33 views
In an examination involving 30 candidates,31 passed mathematics,29 passed physics,while 3 failed both subjects. How many
1. 1 answer
2. 142 views
The equation of a straight line ,l1 is 2y+8x-10.another line,l2 cuts l1 at right angles such that the point of intersection of
1. 1 answer
2. 154 views
What are interrogative pronouns
1. 1 answer
2. 80 views
A mathematics club is made up of 10 boys and 15girls .The club has 3 officials.by the help of a tree diagram,find the
1. 1 answer
2. 93 views
Under an enlargement centre(2,1)the image p(1,1)is p'(4,5).determine the scale factor of the enlargement
1. 1 answer
2. 146 views
Find the value of p if the expression px^2-3÷2x+1÷16 is a perfect square ,given that p is constant
1. 1 answer
2. 145 views
The size of interior angles are 2x,1÷2x,x+40,2x+10,110,135,160,185find the value of x
1. 1 answer
2. 113 views
Find the angle formed by the x-axis and line whose equation is by 6y-7x=22
1. 1 answer
2. 85 views
Find the angle formed by the x axis and line whose equation is 6y-7x=22
1. 1 answer
2. 72 views
The Gcd and lcm are 6 and 1080 respectively if the two numbers are 72 and 60,find the third number
1. 1 answer
2. 180 views
A photograph print measuring 24cm by 15cm is enclosed in a frame A uniform space of width xcm is left in between the edges of
1. 2 answers
2. 129 views
Use the cylindrical shell method to find the volume of the solid obtained by rotating the region bounded by the curve
1. 2 answers
2. 170 views
Term21 / 22 If a borrower can afford to make monthly principal and interest payments of 1,000 and the lender will make a 30-year
1. 0 answers
2. 127 views
5 and 10 terms of an arithmetic progression and 0 and 10, respectively the 20 terms is
1. 0 answers
2. 70 views
The first and last term of an AP are -3 and 145 , respectively .If the common difference is 4 Find the 12th ,25th and the number
1. 1 answer
2. 90 views
Find the 11 term of the progression 4 8 16 .....
1. 0 answers
2. 99 views
If k+1 2k-1 and 3k+1 are three consecutive term of a Gp find the value of the common ratio
1. 0 answers
2. 187 views
If k+1 2k-1 and 3k+1 are three consecutive term of a Go find the value of the common ratio
1. 0 answers
2. 91 views
If 34 base x = 31 base 10
1. 1 answer
2. 70 views
Log10square root 35 + log10squareRoot 2 - log10square root 7
1. 1 answer
2. 87 views
A lamp 1000w,250v is lit for 5hours.if it operate normally and 1kwh of electrical energy cost #2,what is the cost of lighting
1. 1 answer
2. 174 views
X is partly constant and partly varies with y. When y = 5, x = 19 and when y=10, x = 35. Find the relationship between x and y
1. 0 answers
2. 122 views
If the second term of a GP is 6 and the fourth term is 54 find the nth term
1. 2 answers
2. 198 views
Explain the reasons of establishment of national instituition
1. 0 answers
2. 173 views
A triangular flower garden has a an area of 28 m2. Two of its edges are 14 metres and 8 metres. Find the angle between the two
1. 2 answers
2. 492 views
The force of gravity on the moon is one sixth of that on earth . what would a mass of 50g weigh ..on the moon and on earth
1. 2 answers
2. 367 views
The acceleration due to gravity on the moon is 1.6n/kg An astronaut weigh 670n on the earth surface . Find his mass
1. 1 answer
2. 306 views
Which one is heavier?1mole of phd4,1mole oh h2 and 1 mole of PB(NO3)2
1. 2 answers
2. 394 views
Two vectors 10N west and 15N east originated from the same point.Calculate their resultant.
1. 8 answers
2. 2,585 views
The sum of 4th and 6th terms of a geometric series is 80. If the product of the 3rd and 5th term is 256 determine first term and
1. 5 answers
2. 2,017 views
Bisi lives 5km from school. She walks 1km at 4km/h and travels the rest of the way by bus at 16km/h. What is the average speed
1. 6 answers
2. 4,948 views
When it is 9:00a.m in munich,western germany(longitude 11 degree east),what will be the time in calcutta,india(longitude 96
1. 1 answer
2. 430 views
A concert arranged to commence at 12 midnight on sunday in sydney(australia) 150 degree east is to be televised. When will a
1. 6 answers
2. 1,454 views
What is the proper grouping to make the following statement true?10^2 - 8 + 4 x 3 = 288
1. 1 answer
2. 512 views
Name two metals which form both soluble trioxocarbonate(iv) acid and soluble tetraoxosulphate(vi).
1. 8 answers
2. 3,013 views
Two forces whose resultant vector is 100newtons,are perpendicular to each other.if one of them makes an angle of 60degrees with
1. 0 answers
2. 274 views
the systolic blood pressure of MAAUN under graduate.student is distributed normally with arithmetic mean SD 140mmhg and 20mmHg
1. 0 answers
2. 342 views
When the angle of eleviation of a sun is 30 degree. The shadow of a vertical tower is 20m longer than when the angle of
1. 1 answer
2. 554 views
An investor puts 2,500 into a life insurance policy that pays 8.5% simple annual interest
1. 1 answer
2. 476 views
The mean height of three groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m, respectively. Find
1. 1 answer
2. 1,292 views
A spring of natural length 30cm is stretched 35cm by a load of 15N, calculate the extension produced
1. 1 answer
2. 562 views
calculate the resultant of five coplanar forces 10n
1. 1 answer
2. 698 views
Please show me the workingIt says the elastic band is used to hold seven of the same pencil what is the length of the band in
1. 3 answers
2. 905 views
In not less than 450 words,write an expository essay on the topic:the state of the nation(Nigeria)
1. 9 answers
2. 3,366 views
In the diagram,Q is SW of P R is NW of P ∆QPT is 165°.What is the bearing of T from P?
1. 1 answer
2. 420 views
A chord is 4cm from the centre of a circle of radius 7cm. Calculate (a)the angle subtended by the chord at the centre (b) the
1. 3 answers
2. 1,548 views
How long does it take your money to double if it is left in an account for 20 years and earns 8.5% interest compounded
1. 1 answer
2. 532 views
A man spent one fourth of his monthly salary on rent, two fifth of the remaining on food and one sixth of still remained on
1. 1 answer
2. 700 views
The resultant of two forces X and Y will be the greatest when the angle between X and Y is:
1. 7 answers
2. 1,360 views
If the first term of an arithemetic progression is -4 and the twelveth term is 8,find the common difference.
1. 1 answer
2. 480 views
If a function is undefined at a point, can that point be in its domain? Explain.
1. 0 answers
2. 563 views
A sample of Helium occupies 200 L at 30ºC under a pressure of 841 torr. What is the volume it occupies at standard temprature
1. 1 answer
2. 2,004 views
How do you know where to plot the points of a cosine function on a graph? Is there a more simple way then plugging the x value
1. 1 answer
2. 532 views
A small, circular washer of radius a = 0.750 cm is held directly below a long, straight wire carrying a current of I = 13.0 A.
1. 0 answers
2. 749 views
How many liters of CO2 would be collected over water from the bomcustion of 35g of cyclohexane, if the gas is collected at a
1. 0 answers
2. 481 views
In a coffee cup calorimeter, 2.00 g of potassium hydroxide are mixed with 200.0 g of water at an initial temperature of
1. 1 answer
2. 780 views
Thirty feet of water exert a pressure of 1 atm. Calculate the pressure (in kPa) exerted on a diver at a depth of 50 feet on a
1. 2 answers
2. 581 views
A 30 g sample of water at 280 K is mixed with 50 g water at 330 K. Calculate the final temperature of the mixture assuming no
1. 1 answer
2. 929 views
Consider the combustion of propane. Delta H is -2221 kJ. Assume all heat is from combustion of propane. What mass of propane
1. 1 answer
2. 12,113 views
A 30 g sample of water at 280 K is mixed with 50 g of water at 330 K. Calculate the final temperature of the mixture assuming no
1. 1 answer
2. 2,240 views
4Fe + 3O2 ---> 2Fe2O3 Delta H -1652 kJHow much heat is released when 10 g Fe and 2 g O2 are reacted.
1. 1 answer
2. 1,480 views
So Ag+ + Cl- ---> AgCl and delta H is -65.5 kJ. I'm supposed to calculate delta H when one mole of AgCl dissolved in water, so 1
1. 3 answers
2. 1,828 views
The reactionFe + Br2 ---> FeBr2 Delta H = -249.8kJ Calculate delta H when 10.0 g of FeBr2 is formed.
1. 2 answers
2. 691 views
How many liters of chlorine gas at 25C and 0.950 atm can be produced by the reaction of 24.0 g of MnO2 with hydrochloric acid?
1. 2 answers
2. 4,164 views
You want to make 40 mL of gas from some aluminum carbonate. The temperature of the lab is 23 C and the rpessure is 760 torr. If
1. 1 answer
2. 462 views
What volume of gas can be produced in a lab where pressure is 16.0 psi and temperature is 25 C if you collect it over water from
1. 0 answers
2. 614 views
What mass of zinc would need to react with hydrochloric acid in order to produce 25.0 mL of hydrogen gas collected over water at
1. 3 answers
2. 705 views
Consider two flasks. What are the final partial pressure of H2 and N2 after the stopcock between the two flasks is opened?
1. 3 answers
2. 6,623 views
A is a solution of hydrochloric acid containing 3.650g of HCl in 1dm3 of solution. B is asolution of impure sodium carbonate.
1. 1 answer
2. 1,334 views
a boat sails 150km N60°E, then 100km West. What is it's displacement from its starting point?
1. 2 answers
2. 639 views
A minimum energy of 151 kJ is required to dissociate a mole of iodine molecules, I2. Calculate the wavelength of radiation that
1. 1 answer
2. 594 views
Which is the molarity of a solution containing 20 g of CH3 OH in 300 mL of solution
1. 1 answer
2. 378 views
Every Wednesday is salad bar day at Ashley's school. The most popular ingredients are cherry tomatoes, cucumber slices, and
1. 1 answer
2. 755 views
A car travels 20 km southwards and then another 30 westwards. What is the displacement of the car from its initial position?
1. 2 answers
2. 467 views
An unknown substance at a temperature of 20 degrees Celsius is warmed up to 50 degrees when water at 80 degrees is added to it.
1. 0 answers
2. 630 views
What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?
1. 6 answers
2. 4,843 views
Calculate the concentrations of Cd2 +, [Cd (CN) 42] and CN at equilibrium when they dissolve 0, 42mol ofCd(NO3)2, molarity= 2.50
1. 1 answer
2. 735 views
A 900-kg merry-go-round (a flat, solid cylinder) supports 10 children, each with a mass of 50.0 kg, located at the axis of
1. 1 answer
2. 609 views
A box is made of wood 5cm thick, its internal dimension are 10cm by 8cm by 11cm, what is the volume of the wood in the box
1. 1 answer
2. 950 views
A truck is moving away at 30 mph from a car moving towards the truck at 60 mph. Ifthe truck emits a horn of frequency 500 Hz,
1. 1 answer
2. 669 views
Sandra is traveling 17 mph on her bicycle. After 4 hours, how far will she have traveled
1. 2 answers
2. 970 views
A sector of a circle of radius 7cm subtending an angle of 270 degree at centre of the circle is use to form a cone?(A)find the
1. 8 answers
2. 4,607 views
a)Co(H2O)6^2 + 4 Cl^‐1 (aq) ⇄ CoCl4^‐2 (aq) + 6 H2O (l) Rewrite the net ionic equation above including the energy term
1. 1 answer
2. 2,041 views
how do you solve? kim's mom is 47 years old. in 5 years her mother will be 10 years older than twice what kim's age will be. how
1. 1 answer
2. 1,974 views
A voltmeter is specified as being accurate to within 2%. The reading on the voltmeter is 3.50v..the maximum voltage represented
1. 1 answer
2. 468 views
Melissa wants to figure out how many fish live in a small lake by her house .She ccatces 15 fish and tags the (safely).Shethen
1. 10 answers
2. 864 views

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