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Michael

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Write down the sum and product of the roots of the following quadratic polynomials:(a) 3x^2 - 6x - 7 (b) 3x^2 + 6x + 7
1. 1 answer
2. 515 views
Determine the nature of the roots of the following quadratic equations:(a) 3x^2 - 6x + 7 = 0 (b) 3x^2 + 6x - 7 = 0 (c) -5x^2-
1. 1 answer
2. 636 views
Solve the simultaneous questions:(a) x+y+z=-3 (1) x-y-2z=13 (2) y-4z=25 (3) (b)x+2y+3z=-14 (1) 2x+3y-z=13 (2) 3x-y+2z=-7 (3)
1. 2 answers
2. 399 views
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors:(i) x^2 - 6x - 40 = 0
1. 1 answer
2. 615 views
A car is traveling at40 miles per hour. Write a rational expression that gives the time that it takes the car to travel Upper M
1. 1 answer
2. 1,205 views
How do I arrange these in order from the smallest to greatest 5/6, 7/12, 5/8, 23/48
1. 1 answer
2. 501 views
Which property is illustrated by the following statement?2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
1. 1 answer
2. 712 views
Which property is illustrated by the following statement?2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
1. 1 answer
2. 739 views
Which property is illustrated by the following statement?2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
1. 1 answer
2. 489 views
Which property is illustrated by the following statement?2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
1. 1 answer
2. 789 views
Which property is illustrated by the following statement?2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
1. 2 answers
2. 6,565 views
each student needs 2/5 of a cup of play dough to build a house. How many cups of play dough are needed for 9 students?
1. 1 answer
2. 1,219 views
1. Which of the following is true about the formal amendment process for the Constitution?A. Only citizen may propose an
1. 78 answers
2. 12,756 views
The pet store aquarium holds 32 fish. Today 13 angelfish and 19 are clownfish to the total number of fish in the aquarium
1. 1 answer
2. 498 views
A rectangle is inscribed in a right triangle with legs of length 5 and 12. The sides of the rectangle are parallel to the legs
1. 2 answers
2. 1,003 views
A 5.5 foot man walks away from a 12 fokt lampost at a constant speed. At a given moment, let l be the length of the man's shadow
1. 1 answer
2. 496 views
The height h of a closed cylindical tank is 4 times longer than he radius r.Write the volume of the tank as a function of r.
1. 1 answer
2. 462 views
Water pours at a constant rate into a conical tank of height 10 feet and radius 4 feet. Let V, h and r be the volume, height,
1. 1 answer
2. 797 views
Let f be the function that is given by f(x)=(ax+b)/(x^2 - c). It has the following properties:1) The graph of f is symmetrical
1. 1 answer
2. 5,243 views
Theta is an angle between the lines L1 and L2 with the slopes m1 and m2. Prove that tan theta= (m2 - m1)/(1+m2m1).
1. 1 answer
2. 521 views
If r and s are roots of the pokynomial equation x^2 + bx + c, show that b=-(r+s) and c=rs
1. 1 answer
2. 386 views
Solve graphically (x-2)^3(x+4)(3-x)^2(x+1)^4 <0
1. 1 answer
2. 442 views
A hiker walks due east for 40 minutes, then changes course by going South 25 degrees West. After 20 minutes, he changes course
1. 1 answer
2. 1,016 views
One of the equal angles of an isosceles triangle is 55 degrees. If the base is 20 cm, what is the perimeter and the area?
1. 2 answers
2. 579 views
From a height of 10 meters in the third floor of an apparent that building, the angle of depression of two cars moving on the
1. 3 answers
2. 427 views
What is an algebraic expression for cot(arccos ((x+1)/2)?
1. 1 answer
2. 991 views
Without using a calculator, what is the exact value ofsec(arctan(12/5)) - sin(arccot(3/4))
1. 2 answers
2. 947 views
A student scores 96 on a test. The class average is 84, with a standard deviation of 4 points. What percentage of the class
1. 3 answers
2. 2,508 views
if a spinner is divided into 6 equal parts ,when it's spun, what is the probability of spinning on 4?
1. 5 answers
2. 7,613 views
You jump across and down a crevasse from rest. You land on the other side at a speed of 10.5 m/s directed 67.6° below the
1. 0 answers
2. 477 views
You jump across and down a crevasse from rest. You land on the other side at a speed of 10.5 m/s directed 67.6° below the
1. 0 answers
2. 433 views
one cubic meter of water hass a mass of 1.0x10^-3. (a) determine the mass of 1.0 m^3. (b) assu!ing biological substance are 98%
1. 1 answer
2. 781 views
A 10 kg block is towed at a 30° incline with respect to the horizontal the rope is parallel to the incline and has attention
1. 1 answer
2. 587 views
is (-1, 5) a solution to 2 x = y - 7 and 2 y = - x + 9
1. 2 answers
2. 309 views
Finddy/dx and d2y/dx2. x = e^t, y = te^t
1. 2 answers
2. 956 views
Point A is 2.0 meters away from a charge of -3.o(Mu) and 3.0 meters away from a charge of +1.5(Mu) as shown.A) Find the net
1. 3 answers
2. 496 views
What is the internal structure of the cavefish and the minnow suggest common ancestry?
1. 3 answers
2. 1,603 views
which organ is part of both the respiratory and digestive systems
1. 2 answers
2. 917 views
the main parts of the central nervous system consist of the brain and the
1. 4 answers
2. 860 views
why does the blood returning to the heart have very little oxygen in it
1. 1 answer
2. 680 views
If the ratio of red cars to Blue Cars is 3 to 5 and there are 55 blue cars how many red cars are there?
1. 1 answer
2. 784 views
What is the total mass of KNO3 that must be dissolved in 50 g of water at 60 degree C to make a saturated solution?
1. 1 answer
2. 1,451 views
A train takes 5mins to cover a distance of 3km between two stations P and Q. Starting from rest at P, it accelerates at a
1. 0 answers
2. 670 views
In a constant-pressure calorimeter, 70.0 mL of 0.340 M Ba(OH)2 was added to 70.0 mL of 0.680 M HCl. The reaction caused the
1. 1 answer
2. 561 views
In a constant-pressure calorimeter, 70.0 mL of 0.340 M Ba(OH)2 was added to 70.0 mL of 0.680 M HCl. The reaction caused the
1. 0 answers
2. 571 views
A researcher studying the nutritional value of a new candy places a 4.70-gram sample of the candy inside a bomb calorimeter and
1. 0 answers
2. 626 views
Write a story problem to represent six divide by 1/5
1. 0 answers
2. 675 views
Mike had a jar of nickels that had five more nickels than he originally thought. If the total amount of nickels was $4.35, how
1. 4 answers
2. 4,275 views
James wants to buy a 50-inch flat-screen television, and the model he wants costs $1,200. So far, he has saved $700, but still
1. 0 answers
2. 676 views
After purchasing the apartment, Seth receives a street, sewer, and gutter assessment for $12,500 due in 2 years. How much would
1. 3 answers
2. 656 views
A friend of Seth’s who is a real estate developer needs to borrow $80,000 to finish development project. He is desperate for
1. 2 answers
2. 762 views
After looking at the results from questions 1, and 2. Seth realizes that a 2% return in a certificate of deposit will never
1. 1 answer
2. 659 views
. Seth’s current bank offers a 1-year certificate of deposit account paying 2% compounded semiannually. A competitor bank is
1. 2 answers
2. 739 views
Find the finance charge on a credit card with an average daily balance of $465 if the rate charged is 1.25%.
1. 0 answers
2. 631 views
An electric mixer was purchased on the installment plan for a down payment of $60 and 11 monthly payments of $11.05 each. The
1. 1 answer
2. 489 views
Find the amount of money that Keaton and Jana Smith must set aside today so that they will have $5,000 available to buy a home
1. 1 answer
2. 510 views
Manually calculate the compound interest on a 13% loan of $1,600 for three years if the interest is compounded annually.
1. 2 answers
2. 647 views
Alice Dubois was charged $455 in finance charges on a loan for 15 months. Find the finance charge refund if she pays off the
1. 1 answer
2. 628 views
Pyridine, a substance used as a catalyst in some synthetic reactions is a very weak base its degree of ionization is equal to
1. 1 answer
2. 594 views
The methane gas is formed by 25% hydrogen in mass which the ratio between the mass of carbon and hydrogen in this gas?
1. 1 answer
2. 429 views
The region bounded by y=3/x, y=0, x=3, and x=5 is rotated about the x-axis. Find the volume of the resulting solid.
1. 1 answer
2. 684 views
Find the volume of a frustum of a right circular cone with height 25, lower base radius 30 and top radius 13.
1. 2 answers
2. 2,452 views
What is the formulaThe value of Dave's Camaro decreased by 30%. The car is worth $14,000. What was the purchase price?
1. 1 answer
2. 357 views
A hollow sphere has a uniform volume charge density of 2.22 nC/m3. The inner radius is a = 12.2 cm and the outer radius is b =
1. 2 answers
2. 883 views
In my math class tests are 70% and homework is 30% so if i wanted at least an 80% how much would be the least percentage i
1. 1 answer
2. 394 views
In my math class tests are 70% and homework is 30% so if i wanted at least an 80% how much would be the least percentage i
1. 0 answers
2. 372 views
A tray move with a velocity of 10m|s in 2 minute. calculate the distance covered.
1. 1 answer
2. 303 views
Tony had an equal number of cranberry bars and walnut bars. He gave away 66 cranberry bars. He then had 4 times as many walnut
1. 2 answers
2. 933 views
Critical Thinking questionsNeed help!! Due tomorrow. 1. According to each President, who could best bring about social and
1. 6 answers
2. 1,025 views
5m6--- 3n
1. 1 answer
2. 258 views
A Shopkeeper sold a total of 15 boxes of pencils on Monday and Tuesday. He sold 3 more boxes on Monday than on Tuesday. There
1. 1 answer
2. 686 views
Apples are sold at 3 for $2 at Busy Mart. At Big Foods, the same apples are sold at 5 for $2. Kassim buys 15 apples from Big
1. 5 answers
2. 1,630 views
Elena bought 49 packets of red balloons, 66 packets of blue balloons, and 35 packets of yellow balloons. Each pack contained 12
1. 1 answer
2. 1,201 views
I really need help with this question :(A pentagon has two exterior angles that measure (3x), two exterior angles that measure
1. 4 answers
2. 3,360 views
What is Szymborska's overall opinion of humanity in "A Contribution to Statistics?" Support your response with at least two
1. 1 answer
2. 2,847 views
A box that holds an expensive pen has square ends, and its length is 13 cm longer than its width. The volume of the box is 60
1. 2 answers
2. 2,081 views
Need help please. Thank you.1. Determine whether the function has a maximum or minimum. State that value. f(x)= -2x^2-4x 2.
1. 2 answers
2. 785 views
An airplane is circling an airport by traveling a horizontal circular path at a speed of 400 km/h. The bank angle of the wings
1. 1 answer
2. 1,075 views
What would be the volume of a gas inside a 360cm box?
1. 1 answer
2. 369 views
If a book is discounted by 15% and you save $3.00, how much is the book originally?
1. 1 answer
2. 320 views
Orville walks 330 m due east. He then continues walking along a straight line, but in a different direction, and stops 160 m
1. 1 answer
2. 1,514 views
Lisa can shovel her driveway in 30 minutes and Tom can shovel his driveway in 40 minutes. How long will it take them to shovel
1. 1 answer
2. 660 views
The 10th term of an A.P is -27 and the 5th term is -12.what is 18th term?also find sum of it's 25terms
1. 1 answer
2. 1,221 views
Let your car have a mass of 825 kg. Your car is moving at a speed of 3.08 m/s when it strikes a parked car and stops in 0.21 s.
1. 1 answer
2. 936 views
Solve P=2l+2w for w
1. 1 answer
2. 311 views
A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 14 m/s,
1. 2 answers
2. 1,365 views
Select the motion diagram that corresponds to each of the four situations. E.g., if diag. A corresponds to the first situation,
1. 0 answers
2. 787 views
I am doing an elementary experiment regarding separating mixtures. My mixture contained NaCl, SiO2, and CaCO3. In the beginning,
1. 1 answer
2. 757 views
Which of these classifications is most specific?Family Genus Phylum Order I really need help on this question, and if u can do
1. 2 answers
2. 2,447 views
A small container of water is placed on a carousel inside a microwave oven, at a radius of 13.5 cm from the center. The
1. 1 answer
2. 1,135 views
A scientist was studying the effects of oil contamination on ocean seaweed. He thought that oil runoff from storm drains would
1. 0 answers
2. 618 views
A car is at mile marker 132 on the highway heading North. Of the car is traveling with a velocity of 24 mi/hr, what mile marker
1. 2 answers
2. 571 views
How dose lock-and-key mechanism relate to hormones?A. If a hormone fits the receptor site, then there is no reaction. If a
1. 3 answers
2. 570 views
You and your friend part at an intersection. You drive off north at a constant speed, and your friend drives east at a speed
1. 1 answer
2. 1,189 views
On Line ABCDEIf BD exceeds CD by 10 and If BD=x^2 and CD = x + 4, compute x. I tried: BD = CD + 10 X^2 = (x+4)+10 x^2 = x+14
1. 1 answer
2. 422 views
Jonathan walks up stairs that are inclined at 25 degrees to the horizontal and 10m long.A.How far has he moved vertically? B.How
1. 1 answer
2. 963 views
1. Write the equilibrium expressions for the following reactions:a) 2 N2O(g) + O2(g)  4 NO(g) b) H2(g) + CO2(g) 
1. 2 answers
2. 917 views
Prove the identities:(sin^2x-1)^2 = cos(2x)+sin^4x
1. 1 answer
2. 361 views
Use the balanced equation, N2 + O2 --> 2NO, to answer the following questions...A) How many grams of NO are formed from 10.0g of
1. 3 answers
2. 3,202 views
The sea ice around the south pole fluctuates between 18 million square kilometers in September to 3 million square kilometers in
1. 1 answer
2. 2,736 views

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