Questions and answers by

sally

Questions (393)

systems of equations by elimination -6x+6y=6 -6x+3y=-12
1. 1 answer
2. 220 views
(Simplify your answer. Type a whole number, proper fraction, or mixed number.)1. 2 4/5 + 1 3/5 + ? plssssssssssssssss
1. 1 answer
2. 409 views
The pH of blood and extracellular fluid is about 7.4. Animal cells have a membrane potential of about -60 mV (negative inside).
1. 0 answers
2. 369 views
An unknown nucleus has twice the volume of a nucleus with 69 nucleons. What is the atomic mass number of the unknown nucleus?
1. 1 answer
2. 304 views
y = 2.6x
1. 1 answer
2. 167 views
Please this I one of my last questions 6. List the levels of organization within environments. (Community, species, habitat,
1. 3 answers
2. 1,293 views
Choose the word that best completes the sentence.When I let go of the trapeze,-------- I was glad for the of the net below.
1. 1 answer
2. 480 views
What is a topic for an persuasive essay?
1. 1 answer
2. 451 views
Please helpA desert ecosystem shows many examples of interactions between biotic and abiotic parts. a. Describe two biotic and
1. 1 answer
2. 1,310 views
Why do the ruffians remain on the island?Robinson Crusoe tells them it is likely they will be hanged if they return to England.
1. 1 answer
2. 616 views
Why does Robinson Crusoe heat a crowbar in the fire?to make an anchor to make a rudder to make a shovel to make a pickaxe >>
1. 2 answers
2. 680 views
Which underlined word in the sentence is a proper adjective?I like hot Belgian waffles topped with sweet red strawberries. hot
1. 2 answers
2. 500 views
Which underlined word in the sentence is a proper adjective?The beautiful gardens in Holland were filled with colorful Dutch
1. 6 answers
2. 490 views
What did Louis Pasteur see as a child that haunted him for the rest of his life?a doctor touching a hot poker to the wounds of
1. 1 answer
2. 457 views
What is the definition of rhyming couplet?when the word at the end of a line in a poem rhymes with the ending word of the
1. 3 answers
2. 530 views
What is the definition of plot?the beginning, middle, and end of a story the outcome of a story the solution to the main problem
1. 2 answers
2. 638 views
What is the definition of narrative poem?a poem that tells a story a poem that tells how someone feels**** a poem that is told
1. 4 answers
2. 803 views
What is the definition of imagery?words used in a way that causes the reader to read at a certain pace words used in a way that
1. 3 answers
2. 680 views
What is the definition of metaphor?a comparison between two things that are similar; for example, "A grapefruit is larger than
1. 5 answers
2. 880 views
What is the definition of setting?the location and time period of a story the problem that needs to be solved in a story the
1. 5 answers
2. 678 views
∠1 is decomposed into two nonoverlapping angles, ∠2 and ∠3.Let m∠2 = 135° and m∠3 = 45°. What type of angle is ∠1?
1. 6 answers
2. 466 views
Which word in the sentence is a subject pronoun?I went with him to see the movie about dinosaurs. him>>> I movie
1. 2 answers
2. 455 views
In which sentence is the underlined pronoun singular?We have always loved spaghetti. ---- I have often seen this dog>>>. - they
1. 1 answer
2. 365 views
Which word is a pronoun that renames the subject of this sentence?Marco and Pat ate lunch after they hiked the mountain. Marco
1. 1 answer
2. 392 views
Which word names the person spoken to in the sentence?Did you give the gift to Emily already? you gift Emily>>>
1. 3 answers
2. 440 views
Which word in the sentence is a subject pronoun?He will find a spot for his sleeping bag. his spot bag he>>>>
1. 1 answer
2. 464 views
Which word is a pronoun that renames the subject of this sentence?Mei realized she had taken my ballet slippers. she>> ballet my
1. 3 answers
2. 500 views
Which word is a pronoun that renames the subject of this sentence?Your mother said she would leave the office at six o'clock
1. 2 answers
2. 449 views
Which word is the pronoun that names the person spoken to in the sentence?You should enter the art contest that my teacher
1. 1 answer
2. 436 views
Which word is the pronoun that names the person spoken to in the sentence?Would you like to play basketball with my cousin and
1. 3 answers
2. 443 views
Which word is the pronoun that names the speaker in the sentence?The clown smiled at them and waved to us. us>>>> them clown
1. 1 answer
2. 486 views
Which prefix could be added to the word "complete" to change its meaning to "not complete"?bi in>>> sub mis am i right
1. 2 answers
2. 375 views
Which word has a prefix that means "opposite," "bad," or "wrong"?misfortune>>> entangle subscribe biannual Am I Right
1. 2 answers
2. 699 views
Which word has a prefix that means "to make" or "cause to be"?incorrect dislike>>>> entrap biplane
1. 2 answers
2. 393 views
Which word has a prefix that means "not" or "do the opposite"?disagree>>>>>> enable submarine biweekly am i right
1. 2 answers
2. 1,506 views
Which word is the pronoun that names the speaker in the sentence?We need one more player on the hockey team. team one
1. 3 answers
2. 591 views
how do you say yes in Spanish
1. 2 answers
2. 408 views
Which kind of noun is this?pilots'
1. 1 answer
2. 437 views
Which kind of noun is this?children's
1. 3 answers
2. 426 views
Which is the singular possessive form of dentist?dentists dentist’s dentists’ dentistes’
1. 1 answer
2. 800 views
the plural of ticket?
1. 3 answers
2. 540 views
considering the radius of the earth approximatley as 6370km find its volume
1. 1 answer
2. 376 views
In the early 1980s, when the Polish people had to stand in long lines in order to purchase most consumer goods, the communist
1. 3 answers
2. 641 views
can 12,16,20 make a right triangle
1. 2 answers
2. 723 views
1.what causes a plant to grow into that specific plant is it genetics or environment?
1. 2 answers
2. 479 views
claude has 5 1/2 meters of ribbon and uses 4 2/3 meters of it how much ribbons does claude have left in simplest form
1. 9 answers
2. 1,902 views
Who were the primary labor force in feudal society, responsible for tending the fields and ensuring the economy thrived?
1. 0 answers
2. 4,805 views
How did the introduction of livestock by the Spanish impact the native people of America?
1. 0 answers
2. 1,256 views
"super earths" are known to have similar densities and compositions to earth but they have a mass 2-10x greater than earth. If
1. 1 answer
2. 625 views
What factors contributed to the decline of buffalo populations in North America?
1. 0 answers
2. 4,023 views
How much work in eV is required to bring three charges of 5.4x10-19C from a great distance apart to 3.76x10-8m from one another
1. 0 answers
2. 481 views
How much work in eV is required to bring three charges of 6.8x10-18C from a great distance apart to 5.04x10-9m from one another
1. 0 answers
2. 429 views
What role did yellow journalists play in the Spanish American War?
1. 1 answer
2. 701 views
show the correct notation for “The limit of x^2 - 1 as x approaches 3.
1. 1 answer
2. 586 views
Show an example where For n odd, the sign of the y-ters differ: (+) for the first expansion, (-) for the second. (For n even,
1. 1 answer
2. 403 views
Can you give an example as to how The expansion of (x + y)n and (x - y)n are different?
1. 2 answers
2. 628 views
How is the expansion of (x + y)n different to the expansion of (x - y)n ?
1. 1 answer
2. 387 views
How do you form the the rows of Pascal’s triangle?
1. 1 answer
2. 495 views
can you check my answer?Find the coefficient of the term a6b3 in the binomial expansion of the expression (a - 4b)9.
1. 1 answer
2. 858 views
Can you check my answers?1.Find the 5th term in the expansion of the binomial. (2x - 4)8 -458,752x3 286,720x4 458,752x3 35,840x4
1. 1 answer
2. 971 views
Can you check my answers?1.Use the Binomial Theorem to expand and simplify the expression. (2 - 3x)3 -27x3 + 104x2 - 36x + 8
1. 1 answer
2. 1,022 views
can you check my answers?1.Find the binomial coefficient. 12C3 1320 17740800 48 220 answer:d 2.Find the binomial coefficient.
1. 1 answer
2. 808 views
How would you describe a proof by mathematical induction?
1. 1 answer
2. 537 views
Is my answer correct?Which of the following shows the correct first step to prove the following by mathematical induction? 3 +
1. 1 answer
2. 499 views
Is my answer correct?Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) ________________________________________ 7 +
1. 1 answer
2. 466 views
Is my answer correct, I am confused by this question?Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2
1. 1 answer
2. 484 views
can you check my answer?2.Which of the following shows the best next step to prove the following by mathematical induction?
1. 1 answer
2. 653 views
Can you check my answers?1.Which of the following shows the best next step to prove the following by mathematical induction?
1. 1 answer
2. 856 views
Can you check my answer?Which of the following shows the best next step to prove the following by mathematical induction?
1. 1 answer
2. 600 views
Can you check my answers?1.Which of the following shows the best next step to prove the following by mathematical induction?
1. 0 answers
2. 587 views
Are my answers correct if not which are right?Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. 1 2 3 5
1. 1 answer
2. 694 views
Find Pk + 1 ifPk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14
1. 1 answer
2. 1,160 views
Find a quadratic model for the sequence.-4, -4, -3, -1, 2
1. 1 answer
2. 519 views
find Pk + 1 if Pk=2K-1/k!
1. 1 answer
2. 669 views
Find a quadratic model for the sequence with the indicated terms.3, 3, 5, 9, 15, 23, ...
1. 1 answer
2. 1,192 views
Prove the inequality for the indicated integer values of n.n! > 2n, n ≥ 4
1. 1 answer
2. 650 views
Find Pk + 1 for the given Pk.Pk = 1 + 6 + 11 + … + [5(k - 1) - 4] + (5k - 4)
1. 1 answer
2. 482 views
A bullet leaves a rifle with a muzzle velocity of 553 m/s. While accelerating through the barrel of the rifle, the bullet moves
1. 2 answers
2. 691 views
The area of a rectangle is 72 cm². The length. l, of the rectangle is 6 cm longer than the width, w.What is the width of the
1. 4 answers
2. 721 views
What is x on a 45,45,90 triangle if the hypotenuse is 145?
1. 1 answer
2. 475 views
a private jet flies the same distance in 6 hours that a commercial jet flies in 4 hours.if the speed of the commercial jet was
1. 1 answer
2. 1,288 views
In a thundercloud there may be an electriccharge of 46 C near the top of the cloud and −46 C near the bottom of the cloud. If
1. 1 answer
2. 6,635 views
what is a prime number?
1. 1 answer
2. 429 views
I need some help with my homework pleaseWrite a C++ program to prompts the user to enter the first character of shape name
1. 1 answer
2. 792 views
Javier solves three math problems in five minutes. He has 20 math skill-work questions for homework, and he wants to complete
1. 1 answer
2. 663 views
Power applied to a particle varies with time as P=(3t^2-2t+1)W. Find the change in kinetic energy between t=1s and 4s.
1. 1 answer
2. 663 views
is tap water a pure substance..?
1. 3 answers
2. 655 views
is a polyatomic considered a compound?
1. 1 answer
2. 383 views
3x-2y=85x-2y=9 using elimination method.. please help.
1. 5 answers
2. 741 views
Vector A has a magnitude of 6 and is at an angle of 32.4 degrees measured counter-clockwise from the x axis. Vector B has a
1. 1 answer
2. 628 views
Copy of Vector A has a magnitude of 5 and is at an angle of 29.7 degrees measured counter-clockwise from the x axis. Vector B
1. 1 answer
2. 545 views
Ava made 100 paper cranes, and Brittany made 3/4 of the number of paper cranes Ava made. Ava gave 9/20 of her paper cranes to
1. 7 answers
2. 2,202 views
The term formula mass is a general term that can be applied to both ionic compounds and molecular compounds because(a) ionic
1. 2 answers
2. 1,412 views
Anny invests $8,500, at 6% interest, compounded quarterly for 12 years?
1. 1 answer
2. 865 views
Juanita invests $3,500, at 8% interest, compounded annually for 4 years?
1. 2 answers
2. 719 views
Kim and Kent are on opposite sides of a canal, pulling a barge with tow ropes. Kim exerts a force of 50N at 20 degrees to the
1. 1 answer
2. 815 views
hakiim invested 15000 he put part of it in a term deposit that paid 4% per annum and the remainder in a treasury bill that paing
1. 1 answer
2. 565 views
Determine three consecutive odd integers such that three times the middle integer is seven more than the sum of the first and
1. 2 answers
2. 800 views
the cost of a midnight madness movie ticket, is reduced by 2/5 of the original cost, to a cost of 3/5c. which expression is
1. 0 answers
2. 447 views
consider the 666 N weight held by two cables shown below. The left hand cable and tension 530 N and makes an angle of theta2
1. 1 answer
2. 794 views