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Molly

Questions and answers by Molly, page 3

Questions (346)

A long thin rod lies along the x-axis from the origin to x=L, with L= 0.890 m. The mass per unit length, λ (in kg/m) varies
1. 2 answers
2. 579 views
A large horizontal circular platform (M=143.1 kg, r=3.01 m) rotates about a frictionless vertical axle. A student (m=75.3 kg)
1. 6 answers
2. 2,824 views
A long thin rod lies along the x-axis from the origin to x=L, with L= 0.890 m. The mass per unit length, λ (in kg/m) varies
1. 1 answer
2. 648 views
A large horizontal circular platform (M=143.1 kg, r=3.01 m) rotates about a frictionless vertical axle. A student (m=75.3 kg)
1. 2 answers
2. 1,041 views
A long thin rod lies along the x-axis from the origin to x=L, with L= 0.890 m. The mass per unit length, λ (in kg/m) varies
1. 1 answer
2. 1,107 views
Show all steps solve the equation check for extraneous solution 9|9-8 x|=2x+3
1. 4 answers
2. 2,321 views
Need help for a test show all steps to solve problem evaluate the expression for given value of variable. -(4h-1) line is under
1. 5 answers
2. 4,345 views
Show all steps solve the problem evaluate the expression for given value of variable|-4b-8|+|-1=b2|+2b3:b=-2
1. 5 answers
2. 4,909 views
Need help doing a test change the test equation y-100x=2000can be used to represent monthly salary of a salesman when he sells x
1. 4 answers
2. 1,113 views
What is an equivalent form of the following equation 2x-3y=3
1. 2 answers
2. 1,046 views
Which equivalent form following equation 2x-3y=3 need help doing test thank you
1. 4 answers
2. 2,226 views
Solve inequality |2 x+10|26
1. 2 answers
2. 503 views
Solve the inequality |2x+10|>26
1. 2 answers
2. 891 views
Name property real number illustrated by equation 5+(15+6)=(5:+(15)+6
1. 2 answers
2. 858 views
Which equivalent form following equation 2x-3y=3
1. 2 answers
2. 544 views
Which of the following is equal to (2x/5-9)+9. Answers are 2x/5, 5x/2, 2x/5-45, (2 x-9)+45
1. 3 answers
2. 1,610 views
The equation y-100x=2000 can be used to represent monthly salary of a salary of a salesman ,y when he sells x computer system
1. 3 answers
2. 2,386 views
Solve the equation|2x+10|>26 answers are x<-36or x>16,, x>-18or x<8, x<-18or x>8,x<-8or x>8
1. 2 answers
2. 905 views
Solve the equation or formula for the indicated variable s=3r4t+or t answers are. t=s/3-r. t=r4-3s t=s/3r4. T=811/s
1. 4 answers
2. 2,802 views
Which inequality represent the following eight fewer than a number is at least sentence 20 answers are. X-8>20. 8-X>20, x+8<20.
1. 6 answers
2. 5,447 views
To which set of numbers does the number belong-55 answers are, Natural, whole, integers, irrational
1. 4 answers
2. 1,832 views
Graph the number on a number line 10/7
1. 1 answer
2. 928 views
Insert<,>or=to make the sentence true -1/3-2/5 answers are. = < >
1. 4 answers
2. 1,683 views
Name the property of real numbers illustrated by the equation2·(8·7)=(2·8)·7
1. 4 answers
2. 973 views
Name the property of real numbers illustrated by the equation2·(8·7)=(2·8)·7answers are distributive property, associative
1. 2 answers
2. 903 views
Use properties of real numbers to rewrite expression(3/5)(5/3)answers are 8/15,, 15/8,, 0, 1
1. 5 answers
2. 1,233 views
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the
1. 4 answers
2. 1,848 views
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the
1. 3 answers
2. 1,477 views
Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear
1. 2 answers
2. 540 views
Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear
1. 4 answers
2. 1,998 views
What career is more worthy to go to college for and save the most money?A.) Vet Tech B.) Preschool/Kindergarden Teacher C.)
1. 3 answers
2. 740 views
which is punctuated correctly??????Despite the rain many people come to the outside wedding. We went to a movie, and did some
1. 2 answers
2. 772 views
During on Alpine skiing event the times of four Scears were listed below time is measured in seconds skier a= 114.36 skier
1. 7 answers
2. 1,955 views
I am having some trouble with prescriptive and descriptive rules. I have to decide whether the following sentences are
1. 4 answers
2. 521 views
A charge q1 = 5.00nC is placed at the origin of an xy-coordinate system, and a charge q2 = -2.00nC is placed on the positive x
1. 3 answers
2. 1,552 views
Two small plastic spheres are given positive electrical charges. When they are 11.0cm apart, the repulsive force between them
1. 4 answers
2. 1,111 views
Two point charges are located on the y axis as follows: charge q1 = -2.50nC at y1 = -0.700m , and charge q2 = 3.30nC at the
1. 3 answers
2. 2,089 views
How many grams would occupy 12cm^3?
1. 2 answers
2. 481 views
What volume would 90g occupy?
1. 9 answers
2. 4,550 views
How do you write out a PEEL assessment?? (Point, Evidence, Evaluation, Language)
1. 1 answer
2. 350 views
A golf ball is struck with a five iron on level ground. It lands 92.0m away 4.20s later. What was (a) the direction and (b) the
1. 1 answer
2. 613 views
Simplify x-4y+2z-3x-3y+2z=❓can someone help me!!!!!!!😣
1. 4 answers
2. 361 views
Your new designer chair has an S-shaped tubular metal frame that behaves just like a spring with the spring constant 13000 N/m.
1. 1 answer
2. 468 views
You're squeezing a springy rubber ball in your hand. If you push inward on it with a force of 1 N, it dents inward 2 mm. How far
1. 3 answers
2. 1,154 views
Suppose a triangular silk scarf has both of its shortest sides 14 inches long. If the angle between these sides is 110º, what
1. 2 answers
2. 583 views
In the middle of town, State and Elm streets meet at an angle of 40º. A triangular pocket park between the streets stretches
1. 2 answers
2. 614 views
A hill in the Tour de France bike race has a grade of 8%. To the nearest degree, what is the angle that this hill makes with the
1. 4 answers
2. 1,481 views
1.) If f(x)=x^2 and g(x)=4x-5, then fg(x)=4x^3-5x^2? True or False?My answer: True 2.) If f(x) =1/x and g(x)=1/x^2, find
1. 1 answer
2. 346 views
A small, single engine airplane is about to take off. The airplane becomes airborne, when its speed reaches 117.0 km/h. The
1. 4 answers
2. 973 views
Two rocks are thrown simultaneously from the top of a very tall tower with identical speeds of v = 7.70 m/s, but in two
1. 2 answers
2. 1,358 views
A renegade watermelon starts at x = 0 m and rolls at a constant velocity to x = −3.0 m at time t = 5.0 seconds. Then, it bumps
1. 2 answers
2. 673 views
Solve sin θ = 0.95 for -90º ≤ θ ≤ 90º.
1. 2 answers
2. 571 views
Evaluate the inverse trigonometric function. Give your answer to the nearest degree. (Enter only the number.)cos^-1 (-1)
1. 2 answers
2. 557 views
I need help with the following question I am not sure if the answer is B or C.General Revenue Sharing offers states and
1. 3 answers
2. 456 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
1. 4 answers
2. 1,284 views
Let sin A = 12/13 with 90º≤A≤180º and tan B = -4/3 with 270º≤B≤360º. Find tan (A + B).
1. 2 answers
2. 515 views
Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating
1. 1 answer
2. 763 views
Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating
1. 3 answers
2. 686 views
A plank of wood 6m long is cut in the ratio 1:5. Find the lenght in centimetres of the longer piece
1. 3 answers
2. 1,629 views
Is this the same a(bc)=(ab)(ac)
1. 1 answer
2. 301 views
Jose said that the square root -X=3 has no solutino since the square root is a negative, is this true. I think it does has a
1. 3 answers
2. 378 views
is a(bc)=(ab)(ac)
1. 1 answer
2. 325 views
Is a(bc)=(ab)(ac)
1. 1 answer
2. 291 views
What does Truman mean when he claims, "Should we fail to aid Greece and Turkey in this fatal hour, the effect will be far
1. 4 answers
2. 1,171 views
What concentration of of CN- is needed to produce the same POH as 3.5*10^-5M solution of BA(OH)2?
1. 4 answers
2. 420 views
What volume (mL) of .20 M HCL needs to be added to 1.23 L of .10 M acetic acid to reduce percent ionization to 1.00%?
1. 4 answers
2. 411 views
What concentration of of CN- is needed to produce the same POH as 3.5*10^-5M solution of BA(OH)2?
1. 1 answer
2. 383 views
Determine the PH of a solution that results from mixing 50 ml of .200 M hydroazoic acid, HN3 with 50 ml of CA(OH)2
1. 4 answers
2. 488 views
What volume (mL) of 0.20 M HCl needs to be added to 1.23 L of 0.10 M acetic acid to reduce the percent ionization to 1.00%?
1. 1 answer
2. 481 views
what is the PH of a solution of .1 M NAN3 that disassociates into HN3
1. 1 answer
2. 467 views
Chad buys peanuts in 2-pound bags. He repackages them into bags that hold 5/6 pounds of peanuts.how many 2 pound bags should
1. 3 answers
2. 747 views
1. Air masses that form over land would be mostlyA. Warm B. Cold C. Dry* D. Wet 2. Air masses that form over oceans or seas
1. 6 answers
2. 1,765 views
20.0 mL of a 0.18 M HCl solution are combined with 50.0 mL of a 0.085 M NaOH solution.What is the pH of the resulting solution?
1. 1 answer
2. 399 views
The radioactive nuclide 18F decays by first order kinetics with a half life of 1.83 hr.How many hours will it take for 68.5% of
1. 2 answers
2. 502 views
Calcium hydroxide has Ksp = 5.5 x 10-5 at 25 oC and a molar mass of 74.10 g/mol.How many grams of calcium hydroxide are needed
1. 2 answers
2. 805 views
If a graph of a quadratic function can have 0, 1 or 2 x-intercepts. How can you predict the number of x-intercepts without
1. 3 answers
2. 1,647 views
A bus makes a trip according to the position–time graph shown in the illustration. What is the average acceleration (in km/h2)
1. 4 answers
2. 2,814 views
Which of the following is most likely to help countries in West and Central Africa solve their economic problems?A. griots B.
1. 10 answers
2. 581 views
If I had three times as many marbles as my friend and toghter we had 48 marbles how many marbles do I have?48/3=16?
1. 3 answers
2. 327 views
c-d / d-cI know the answer is -1, but what is the math that I have to show to get to that answer? Thanks!
1. 7 answers
2. 505 views
Explain why chlorine (Cl²) is a gas at room temperature, but at sodium chloride (NaCL) is a solid at room temperature.
1. 2 answers
2. 819 views
The feeling that things weren't as good as they seemed is described best by which image in Borders
1. 3 answers
2. 1,818 views
If a punch recipe contains 40% of ginger-ale 25% of Orange Juice 20% of pineapple juice does 15% of sorbet how many cups of
1. 3 answers
2. 577 views
The two shortest sides of a right triangle are 10 in and 24 in long. What is the legnth if the shortest side of a similar
1. 2 answers
2. 573 views
how many liters of CO2 and water vapor are produced by burning .3 liters of C2H2 (Acetylene) with .75 liters of O2? The balanced
1. 2 answers
2. 903 views
Tracy has one can of iced tea mix. One scoop of the mix makes two servings of iced tea. The scoop holds 1/12 of a can. How many
1. 6 answers
2. 1,192 views
If 10g of magnesium reacted with 5g of oxygen how much magnesium oxide would you produce? How do you know?
1. 2 answers
2. 996 views
A spherical balloon is inflated at the rate of 5 cubic feet/minute. What is the volume of the balloon if when the radius is
1. 3 answers
2. 748 views
Alex deposits $250 at the end of each month into an account that earns 4% interest compounded monthly. Determine the value of
1. 1 answer
2. 489 views
A Sunway train starts from rest at a station and accelerates at a rate of 2.0 ms^-2 for 10 s. It runs for constant speed for 50
1. 2 answers
2. 683 views
Two cars are 400 miles apart and start towards one another, one car traveling 4 miles per hour slowerthan the other. After 3
1. 2 answers
2. 564 views
Small marbles weigh 3.6 grams each and large marbles weigh 4.6 grams each. A bag contains40 marbles and weighs 156 grams. How
1. 1 answer
2. 456 views
Assume that the test has 5 true/false questions, and 10 multiple choice questions (4 options per questions), each with exactly
1. 1 answer
2. 1,088 views
Suppose U={...-3,-2,-1,0,1,2,3...} is the universal set and R={...-3,-1,1,3...}. What is R?A. {-2,0,2} B. {...-4,-2,0,2,4...} C.
1. 2 answers
2. 675 views
you pull your 6kg dog on a sled which has a mass of 15kg. while you are pulling at 33N, there is a 12N frictional force that is
1. 2 answers
2. 537 views
Why are these false?If a function has derivatives from both the right and left at a point then its differentiable at that point.
1. 2 answers
2. 453 views
Describe the x-values at which f is differentiable.f(x)= x^2/5
1. 2 answers
2. 765 views
Find the Value(s) of C guaranteed by the Mean Value Theorem for Integrals for f(x) =x^3 in the interval [0,3]
1. 3 answers
2. 1,372 views
A 100 gallon tank is filled with a salt solution containing 10 lbs of salt. Pure water is pumped in at a rate of 5 gallons per
1. 5 answers
2. 1,364 views
Lesson 11: Unit reviewReconstruction and economic growth Practice. If you know the right answers to this unit review practice
1. 3 answers
2. 788 views

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