Questions and answers by

Ciara

Questions (232)

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.x + y + z = 9 2x -
1. 16 answers
2. 967 views
Find the inverse of the matrix, if possible.A = { 0 -6 } {-2 -5} A. 0 -1/2 -1/6 5/12 B. -1/6 0 5/12 - 1/2 C. 5/12 - 1/2 -1/6 0
1. 5 answers
2. 412 views
Use Cramer's rule to solve the system. 2x + 4y - z = 32 x - 2y + 2z = -5 5x + y + z = 20A. {( 1, -9, -6)} B. {( 2, 7, 6)} C. {(
1. 5 answers
2. 705 views
Let B = [-1 3 6 -3]. Find -4B.A. [-4 12 24 -12] B. [-3 1 4 -5] C. [4 -12 -24 12] D. [4 3 6 -3] b ?
1. 2 answers
2. 340 views
Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations.2x + y = 8 6x + 3y = 24 A.
1. 4 answers
2. 2,113 views
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions,
1. 1 answer
2. 880 views
Complete the following:(a) Use the Leading Coefficient Test to determine the graph's end behavior. (b) Find the x-intercepts.
1. 1 answer
2. 1,650 views
Use the compound interest formulas A = Pert and A = P(1 + 𝑟/n)^nt to solve.Suppose that you have $11,000 to invest. Which
1. 3 answers
2. 2,406 views
For the data set shown by the table,a. Create a scatter plot for the data. (You do not need to submit the scatter plot) b. Use
1. 2 answers
2. 2,741 views
Begin by graphing the standard absolute value function f(x) = | x |. Then use transformations of this graph to describe the
1. 3 answers
2. 1,319 views
Find the specified vector or scalar. Show your work.u = -4i + 1j and v = 4i + 1j; Find ‖𝑢 + 𝑣‖.
1. 4 answers
2. 2,489 views
Find functions f and g so that h(x) = (f ∘ g)(x).h(x) = (6x - 14)8
1. 3 answers
2. 3,499 views
Begin by graphing the standard absolute value function f(x) = | x |. Then use transformations of this graph to describe the
1. 7 answers
2. 1,715 views
Find the reference angle for the given angle. Show your work.-404° my answer is 44 degree , But i don't know how to put my work
1. 2 answers
2. 817 views
Find functions f and g so that h(x) = (f ∘ g)(x).h(x) = (6x - 14)8
1. 2 answers
2. 7,730 views
Find the x-intercepts (if any) for the graph of the quadratic function. 6x2 +12x+5=0Give your answers in exact form. Show your
1. 5 answers
2. 814 views
The wind chill factor represents the equivalent air temperature at a standard wind speed that would produce the same heat loss
1. 1 answer
2. 1,089 views
Verify the identity. Show your work.(1 + tan2u)(1 - sin2u) = 1
1. 2 answers
2. 1,547 views
The wind chill factor represents the equivalent air temperature at a standard wind speed that would produce the same heat loss
1. 0 answers
2. 1,100 views
A gas company has the following rate schedule for natural gas usage in single-family residences:Monthly service charge Per therm
1. 2 answers
2. 6,612 views
Verify the identity. Show your work.cot θ ∙ sec θ = csc θ
1. 2 answers
2. 1,937 views
Solve the quadratic equation by the square root property.(2x + 5)2 = 49 A. {-6, 1} B. {0, 1} C. {-27, 27} D. {1, 6} d?
1. 2 answers
2. 581 views
Evaluate the radical expressions or indicate that the root is not a real number.3sqrt-4^3 A. -64 B. 4 C. -4 D. not a real number
1. 2 answers
2. 700 views
Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios
1. 3 answers
2. 761 views
An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120-V circuit. How much energy is
1. 2 answers
2. 623 views
Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios
1. 1 answer
2. 993 views
An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120-V circuit. How much energy is
1. 1 answer
2. 590 views
A hard-rubber or plastic comb rubbed against wool can often be shown to have a static charge. Why does a metal comb not readily
1. 1 answer
2. 576 views
A hard-rubber or plastic comb rubbed against wool can often be shown to have a static charge. Why does a metal comb not readily
1. 6 answers
2. 677 views
Consider eight two-cubic centimeter (2 cm3) sugar cubes stacked so that they form a single 2 x 2 x 2 cube. How does the surface
1. 0 answers
2. 597 views
A falling 50-kg skydiver experiences an upward acceleration of 6.2 m/s2 when she opens her parachute. Show (by calculation) how
1. 0 answers
2. 2,385 views
The sun’s mass is about 2.7 x 107 times greater than the moon’s mass. The sun is about 400 times farther from Earth than the
1. 0 answers
2. 482 views
A 2.0-gram bullet is shot into a tree stump. It enters at a speed of 3.00 x 104 cm/s and comes to rest after having penetrated
1. 2 answers
2. 1,111 views
If a stationary cart is struck head-on by a cart with twice mass of the stationary one and a velocity of 5 m/s, what will be the
1. 2 answers
2. 526 views
At a particular point, a satellite in an elliptical orbit has a gravitational potential energy of 7000 MJ with respect to
1. 0 answers
2. 1,284 views
Leon’s bicycle wheels have a circumference of 2 m. What is his linear speed when the wheels rotate at 1 revolution per second?
1. 2 answers
2. 2,688 views
If a freely falling rock were equipped with a speedometer, by how much would its speed readings increase with each second IF it
1. 1 answer
2. 697 views
If a person weighs 500 N on Earth, what would she weigh on Jupiter, where the acceleration due to gravity is 26 m/s2?Show all
1. 1 answer
2. 5,436 views
Future value calculations are also referred to as:A. discounting. B. add-on interest. C. compounding. D. simple interest. D?
1. 1 answer
2. 849 views
PSI, a financial services consultant, estimates that over _____ million U.S. households have a net worth in excess of $1
1. 2 answers
2. 713 views
What is the value of A in the following nuclear reaction?212/84Po→208/82Pb+A/ZX
1. 1 answer
2. 2,844 views
A 265g mass attached to a horizontal spring oscillates at a frequency of 1.00Hz . At t =0s, the mass is at x= 4.20cm and has vx
1. 2 answers
2. 768 views
A 40.0 g block of ice at -15 degrees C is dropped into a calorimeter (of negligible heat capacity) containing water at 15
1. 3 answers
2. 3,154 views
Write a number sentence.There are 17 goats in the barn. 8 goats go outside. How many goats are still in the barn?
1. 1 answer
2. 1,390 views
A person purchased a $204,815 home 10 years ago by paying 10% down and signing a 30-year mortgage at 10.2% compounded monthly.In
1. 0 answers
2. 536 views
Which of the following represents the zeros of the function g(x) = x 3 - 9x 2 + 2x + 48?A. x = –8, x = 2, and x = –3 B. x =
1. 1 answer
2. 837 views
Arlan needs to create a box from a piece of cardboard. The dimensions of his cardboard are 10 inches by 8 inches. He must cut a
1. 3 answers
2. 668 views
what does [-8 4] equal ?-3[ 0-1] [ 6 3] How do I do this ? Help please
1. 18 answers
2. 464 views
Scan the following lines from Lowell's poem to identify the spondee. By placing the accent mark (') over stressed syllables and
1. 4 answers
2. 6,097 views
While a heroic epic focuses on the expolits of a single hero, an epic is a long poem that :A: focuses on the exploits of a
1. 1 answer
2. 574 views
Odysseus alone will listen o the Serens song because he :A: wants to tell his men what they sing. B: is following Cicle's
1. 1 answer
2. 537 views
The tone of "A smile" is ?A: Hopeful B: Cheerful. C: tense D: light Answer : D In "Boast Not , Proud English," the writer is
1. 3 answers
2. 632 views
For the speaker in "Local Sensibilities,"pineapples represent:A: His favorite food. B: A Thanksgiveing ham. C: tourists D: work.
1. 3 answers
2. 526 views
"The song of Wandering Aengus" is a (n) ________poem.A: epic B: allegorical C: dramatic D: prose Answer : C ?
1. 2 answers
2. 446 views
In "Creation," the poet says that god is like:A: a living man B: the darkness and the light C: a mother bending over her child
1. 3 answers
2. 529 views
From reading "Birches," we can conclude that the speaker is a(n):A: Boy B: Birch tree C: old man D: girl on her hands and knees
1. 1 answer
2. 695 views
The tone of "A smile" is ?A: Hopeful B: Cheerful. C: tense D: light Answer : D In "Boast Not , Proud English," the writer is
1. 0 answers
2. 479 views
For the speaker in "Local Sensibilities,"pineapples represent:A: His favorite food. B: A Thanksgiveing ham. C: tourists D: work.
1. 0 answers
2. 590 views
"The song of Wandering Aengus" is a (n) ________poem.A: epic B: allegorical C: dramatic D: prose Answer : C ?
1. 0 answers
2. 324 views
For the speaker in "Local Sensibilities," pineapples represent:A: his favorite food. B: a Thankgiving ham. C: tourist D:work
1. 1 answer
2. 417 views
Read the following sentence:Moses was a hebrew prophet and led his people out of captivity. What is the simple subject of this
1. 6 answers
2. 603 views
The central theme in both "Steal Away" and "Go Down, Moses" is:A: Sinners will pay for their sins. B: slaves will one day be
1. 1 answer
2. 862 views
The theme of destiny figures most prominently in:A: "The Prodigal Son" B: "Goha and the Pot" C: "The White Snake" D: "The silver
1. 0 answers
2. 382 views
Sigmund Freud coined the term _______,which he applied to people who were extremely self-absorbed.A. Dryad B. suspension of
1. 4 answers
2. 494 views
"The story of Daedulus and Icarus"Teaches that:A. the gods reward those who are invesntive. B. the gods will reard those who
1. 3 answers
2. 564 views
A new roller coaster is a conservative system. If the coaster leaves the starting point with a speed of 5 m/s and a height of 25
1. 1 answer
2. 916 views
To make it easy to quickly return to a favorite web site you can ____ it.A: Bookmark B: Bookshelf C: Copy D: Memorize I got A.
1. 1 answer
2. 400 views
If you accidentlly delete a word or group of words you can get it back by choosing the _____ command.A. F1 B. Cut C. Redo D.
1. 1 answer
2. 487 views
if you are at the end of a line and want to leave a blank line before beginning the next line press __________ 2 timesA. Space
1. 1 answer
2. 526 views
The ________ key must active before you can use the numeric keypad to :A, caps lock B. num lock C. scroll lock D. tab I got B
1. 1 answer
2. 566 views
1. which of these is NOT one of the rules for the care of CDs?A. Hold the CD by putting your finger through the hole in its
1. 1 answer
2. 431 views
Topic: Compare and Contrast the Tang and song dynasties China?The Tang Dynasties (June 18,618-June 4,907)was an imperial dynasty
1. 14 answers
2. 3,536 views
Carlo drove for 3 hours in a fog, then increased his speed by 30 miles per hour (mph) and drove 6 more hours. If his total trip
1. 1 answer
2. 2,592 views
Find three consecutive even integers whose sum is 252
1. 2 answers
2. 1,000 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. 599 views
Show all work. Find the quotient:6x^3-x^2-7x-9/2x+3
1. 1 answer
2. 1,014 views
Show all work. Find the quotient:49a^2-b^2/7a-b
1. 1 answer
2. 421 views
I am not even,I am greater than 200,the sum of my digits is 9,I am a multiple of 5,I am less than 300,I am evenly divsible by 9
1. 2 answers
2. 536 views
Use the five steps for problem solving to answer the following question. Please show all of your work.Marissa has budgeted $65
1. 1 answer
2. 677 views
does compact cars get the best gas milegage?
1. 2 answers
2. 337 views
The sticker price on a new car includes:A.The final selling price of the vehicle. B.an extended warranty. C.everything you need
1. 3 answers
2. 469 views
The _______ is the contract that seals the deal when you buy a car.A.loan application B.warranty C.loan agreement D.sales
1. 9 answers
2. 578 views
As a general rule,homeowners should carry property damage insurance on thier structure amounting to at least ___percent of their
1. 6 answers
2. 489 views
Expensive jewelry is usually insured by a (n)A.umbrella policy B.replacment cost rider C.policy floater D.named-perilspolicy. I
1. 2 answers
2. 369 views
The lump sum payment surivorss receive from social security to hep pay funeral and burial expenses is :A. $255 B.$785 C.$1,000
1. 7 answers
2. 1,349 views
Disability insurance is designed to replaceA.damaged property B.loss or damage to property C.money damages awarded in a law suit
1. 3 answers
2. 1,169 views
The __________is the contract that seals the deal when you uy a car.A.loan application B.warranty C.loan agreement D.sales
1. 4 answers
2. 468 views
The lump sum payment survivors receive from social security to help pay funeral and burial expenses isA.$255 B.$785 C.$1,000
1. 5 answers
2. 630 views
The U.S congress added disability insurance to the social security act in 19___.A.35 B.54 C.65 D.72 i got A
1. 4 answers
2. 583 views
The amount you pay out of pocket before your health insurace policy begins to take over payments is called your:A.premium
1. 4 answers
2. 501 views
_______emphasize preventive medical care.Generally,their members or subscribers must go to a central facility to receive care.A.
1. 3 answers
2. 690 views
the type of life insurance often used as mortagage insurance is:A.decreasing term B.universal life C.whole life D.homeowners
1. 5 answers
2. 519 views
The __________is the contract that seals the deal when you buy a car.A.loan application B.warranty C.loan agreement D.sales
1. 2 answers
2. 480 views
The __________spells out the new owner's repayment obligations when finacing a new or used vehicle.A.lone agrrement B.sticker
1. 4 answers
2. 407 views
_________of the vehicle is the likely consequence of failture to make the required loan payments.A.Theft B.Repossession
1. 5 answers
2. 400 views
The sticker price on a new car includes:A.The final selling price of the vehicle B.an extended warranty C.everything you need to
1. 1 answer
2. 1,043 views
what is the length of CE if DC=5x-24, CE= 6x-20, and DE= 55?
1. 1 answer
2. 891 views
1. The sticker price on a new car includes:A.The final selling price of the vehicle B.an extended warranty C.everything you need
1. 1 answer
2. 536 views
Non-standard equipment and accessories added to the basic vehicle are generally called :A.options B.an extended warranty
1. 3 answers
2. 395 views
It is important to make sure that any person selling you a car has :A.physical possession of the vehicle. B.informed the motor
1. 5 answers
2. 594 views