Questions LLC
Login
or
Sign Up
Ask a New Question
Michael
Questions and answers by
Michael
, page 8
Questions (1,008)
If r and s are roots of the pokynomial equation x^2 + bx + c, show that b=-(r+s) and c=rs
1 answer
335 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).
2 answers
476 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
4 answers
5,153 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,
2 answers
737 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 answer
406 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 answer
442 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
3 answers
921 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 answer
441 views
1. Which of the following is true about the formal amendment process for the Constitution?
A. Only citizen may propose an
78 answers
12,294 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?
2 answers
1,158 views
Which property is illustrated by the following statement?
2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
5 answers
6,485 views
Which property is illustrated by the following statement?
2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
3 answers
745 views
Which property is illustrated by the following statement?
2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
1 answer
445 views
Which property is illustrated by the following statement?
2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
2 answers
687 views
Which property is illustrated by the following statement?
2(-3/9)=(-3/9)2 A. Associative property of addition. B. Commutative
2 answers
652 views
How do I arrange these in order from the smallest to greatest 5/6, 7/12, 5/8, 23/48
1 answer
464 views
A car is traveling at
40 miles per hour. Write a rational expression that gives the time that it takes the car to travel Upper M
3 answers
1,138 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
2 answers
555 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)
3 answers
348 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-
2 answers
591 views
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 answer
460 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
3 answers
561 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 answer
341 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-
2 answers
1,004 views
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 answer
452 views
(a) Solve the following equations for x where possible, giving your solutions correct to three decimal places.
(i) 3^x+1 -1=5
1 answer
424 views
(a) Let u=7^x. Using the rules for powers show that i) 7^x-1 = u/7 and ii) 7^2x-1 = u^2/7
(b) By making the substitution u=7^x
1 answer
335 views
By making the substitution u=ln x show that the following equation has exactly one real-number solution:
-12/ln x + ln x^4 = -9
1 answer
366 views
A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough
2 answers
527 views
A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough
2 answers
617 views
The coefficiant of friction between rubber tires and wet pavement is 0.5. Breaks are alllied to a 750kg car, intitally
2 answers
590 views
Consider the 4 points A(1,5), B(-4,6), C(0,0), D(-12,12). Find the gradients of the lines:
(a) BD
1 answer
366 views
In a triangle with angles α,β,γ and opposite sides a, b, c you are given:
α=35°, β=100°, b=40. Find all missing lengths
2 answers
523 views
1) BLANK are people who move into one country from another.
A) Emigrants B) Immigrants C)Urbanites D) Nomads 2. One of the
29 answers
2,944 views
A tree stands 22 feet tall and is 382 feet from a building. The tree casts a shadow that is 40 feet long. How tall is the
3 answers
455 views
A tree stands 22 feet tall and is 382 feet from a building. The tree casts a shadow that is 40 feet long. How tall is the
1 answer
461 views
PLEASE check my answer this is my last test and i d not want to mess up PLEASE
1. Which sentence contains an opinion? (1 point)
3 answers
974 views
Assume that 5.00 grams of zinc react with excess HCl according to the following equation:
Zn + 2HCl = ZnCl2 + H2 The hydrogen was
2 answers
527 views
Ethan Frome test please check my answers and correct if they are wrong
4. Which word best describes the atmosphere, or mood, of
1 answer
481 views
Ethan Frome test please check my answers and correct them if they are wrong
4. Which word best describes the atmosphere, or mood,
2 answers
617 views
Ethan Frome test please check my answers and correct them if they are wrong
4. Which word best describes the atmosphere, or mood,
3 answers
559 views
A reaction requires 22.4 L of gas at STP. You have 30.5 L of gas at 101.5 kPa and 373 K. Which of the following statements is
3 answers
1,816 views
Three out of 200 machine parts were found to be defective.
About how many parts would be expected to be defective out of 2500
1 answer
395 views
Construct kite ABCD with adjacent sides AB egual to 6cm and BC egual to 9cm.BAC=60cm
2 answers
591 views
What is a fatigue fracture
1 answer
333 views
When you pour molten salt(NaCl) into the water, it explodes. But if you pour molten sodium bicarbonate into the water, there's
3 answers
481 views
Four less than the quotient of a number and
5 is 9 . Use the variable w for the unknown number
1 answer
428 views
If I have a piece of poster board 22"x28" and I draw 1 1/4 inch squares can I draw?
4 answers
1,364 views
What are pathogenic and opportunistic bacteria?
1 answer
365 views
Is opportunistic bacteria a bad bacteria?
3 answers
335 views
Find the volume of the solid obtained by rotating the region enclosed by the curves y= 1/x and y= 6-x about the x-axis.
(Use
1 answer
459 views
4) The line with slope 6/5 , going through (0, 2). Write equation in Slope Intercept Form.
I am new to this so can you show me a
7 answers
2,218 views
the ratio of ten more than three times a number to the square of the same number is equal to one. what is the number?
3 answers
587 views
Find the equation of the line through the given pair of
points in standard form using only integers. 3) (5, 2) and (-1, 6)
2 answers
513 views
An object initially at restIs giving a constant acceleration of 0.5. Calculate the time it takes to travel 100m
1 answer
309 views
In King Arthur's Knights, what was the end result of Sir Lancelot’s perilous adventures?
A. King Arthur made him a Knight of
6 answers
1,842 views
In lines 6-8 of the King Arthur’s Knights excerpt, Lord Evroc’s wife plans to present a(n)_____ to her husband to explain
5 answers
1,164 views
What type of language register is used between King Anguish and his wife in lines 1-8 of the excerpt?
1-8: Finding her rage thus
6 answers
1,763 views
What form of repetition is this?
'These to you, Sir Tristram of Lyones, most noble knight, from his lover and friend King Anguish
3 answers
565 views
to establish a college fun, what lump sum must be deposited in order to have $30,000.00 in the fund at the end 0f 15 years?
4 answers
670 views
Which accurately compares the theology that dominated during the Middle Ages with the philosophy that came to prominence during
4 answers
3,797 views
Why did Machiavelli advocate the use of force by a ruler?
a. to establish and promote international trade routes that help to
4 answers
1,694 views
Which accurately describes an impact of scientific innovation during the Renaissance?
a. Invention of concrete helped the
10 answers
10,507 views
Which option best describes a difference between the ideas of humanists and those of the Catholic Church during the Renaissance?
7 answers
6,357 views
How did humanist philosophy affect people’s perceptions during the Renaissance?
a. People began to question government and the
4 answers
787 views
Which accurately describes Greek and Roman ideas that were revived during the Renaissance by humanist philosophers?
a. The use of
4 answers
3,500 views
Which accurately describe ideological differences between Catholicism and humanism during the Renaissance?
(Select all that
5 answers
3,298 views
Which accurately describes ideological differences between Catholicism and humanism during the Renaissance?
a. The Catholic
4 answers
4,320 views
Which accurately describe the theology of the Catholic Church during the Middle Ages?
(Select all that apply.) a. Catholics could
6 answers
5,438 views
What were outcomes of the Council of Trent?
(Select all that apply.) a. The council decided to develop new training practices for
5 answers
4,718 views
Why do we use metals in wires?
(Select all that apply.) a. Metals are lustrous. b. Metals are reactive. c. Metals conduct
3 answers
1,588 views
Which type of radiation emits particles of helium nuclei?
alpha radiation beta radiation induced radiation gamma radiation I
2 answers
650 views
Which statements show how a chemical bond is formed?
(Select all that apply.) a. The valance electrons of an atom are emitted
4 answers
1,081 views
Which option most accurately describes the theology of the Catholic Church during the Middle Ages?
a. The Church promoted
4 answers
2,146 views
What was the significance of Martin Luther’s 95 Theses document?
a. In it, Martin Luther condemned the Catholic Church’s
7 answers
4,839 views
Which option most accurately describes life events of Martin Luther?
a. He was an important reformer in the Swiss Protestant
3 answers
2,198 views
Two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water.
How many molecules of water are
2 answers
675 views
Review the information.
In Compound A, Element W has an electronegativity of 2.8, and Element X has an electronegativity of 2.5.
4 answers
2,508 views
Why are molecular models important in the understanding of molecules?
(Select all that apply.) A. They can offer a perfect visual
7 answers
2,726 views
Which accurately describes why Bartolomeu Dias did not complete his journey to India?
A. Dias’s food supply had run low, and
9 answers
1,583 views
Which accurately describes how Portuguese exploration efforts affected native African civilizations?
A. The Portuguese traded or
9 answers
5,704 views
In King Arthur's Knights, what happened to the knights who went in search of the Holy Grail?
A. Two of them died and ascended to
4 answers
1,495 views
Measurements of a lake’s width were taken at 15-foot intervals, as shown:
x= 0 15 30 45 60 75 90 105 120 f(x)= 0 15 18 20 19 23
2 answers
920 views
“Congress first began to regulate the use of money in federal elections in 1907. In that year, it became unlawful for any
2 answers
744 views
How can grounding prevent property damage and harm, even death when lightning strikes?
3 answers
330 views
Why were two-prong outlets replaced with three-prong outlets?
1 answer
281 views
How did events of the Protestant Reformation motivate religious groups to migrate to the New World?
(Select all that apply.) A.
9 answers
1,962 views
Which option accurately describes events of the Industrial Revolution and subsequent emergence of capitalism?
A. The Industrial
13 answers
4,853 views
Which option accurately describes events of the Haitian Slave Revolt on the island of Hispaniola (formerly Saint-Domingue)?
A.
7 answers
2,498 views
How did the French and Indian War contribute to new taxation policies in the American colonies?
A. The French government imposed
17 answers
6,643 views
How did the decline of the Roman Empire impact the rise of the Arab Empire in Spain?
A. Huns ruled Spain after the Roman Empire
4 answers
1,965 views
Which option accurately describes Chinese culture’s motivation to sail vast oceans during the Age of Discovery?
A. The Chinese
12 answers
8,111 views
Which options accurately describe ancient Greece’s influence on later civilizations?
(Select all that apply.) A. Ancient Greece
11 answers
5,808 views
Which option accurately describes the impact the Columbian Exchange had on the indigenous people of the Americas?
A. The
3 answers
1,939 views
What led to the viability of the Jamestown colony?
A. Trading for furs with the Cherokee tribes to the south led to an increase
7 answers
2,993 views
Why is an alpha particle written as a helium (He) nucleus?
A. An alpha particle has two protons and two neutrons; it is
4 answers
2,490 views
How many particles are in 9.22 x 10^–37 mol of iron(III) oxide (Fe2O3)?
A. 5.54 x 10^12 mol Fe2O3 B. 1.60 x 10^23 mol Fe2O3 C.
6 answers
664 views
How many mol of nitrogen monoxide gas (N2) are in a 1.49 L container at standard temperature and pressure?
A. 2.14 x 10–24 mol
5 answers
678 views
3O2 -> 2O3
When 4.26 x 10^16 mol of oxygen (O) are converted into ozone, how many mol of the pollutant (O3) are formed? A. 2.84 x
4 answers
648 views
How many g are in 6.35 x 10^31 particles of nickel (Ni) if nickel’s molar mass is 58.693 g/mol?
A. 1.08 x 10^30 g Ni B. 6.51 x
6 answers
727 views
Pages
1
2
3
4
5
6
7
8
9
10