05/13/20

An unknown gas has a density of 0.18 kg/m3, and air has a density of 1.275 kg/m3. If a balloon is filled with 0.129 m3 of helium,

what is the maximum mass the balloon can have and still float?
Follows • 1
Expert Answers •1

05/12/20

A football player kicks a football downfield. The height of the football increases until it reaches a maximum height of 10 yards, 25 yards away from the player.

A football player kicks a football downfield. The height of the football increases until it reaches a maximum height of 10 yards, 25 yards away from the player. A second kick is modeled by... more
Follows • 1
Expert Answers •1

05/12/20

Write f(x)=1/2x^2+x-4 in intercept form.
Write f(x)=1/2x^2+x-4 in intercept form.
Follows • 2
Expert Answers •2

05/12/20

Question on Newton's Second Law
A motorist has a reaction time of 0.600 s. While driving at 20.0 m/s, he sees a child run suddenly onto the road, 40.0 m in front of his car. If the mass of the car is 1000 kg and the average... more
Follows • 1
Expert Answers •2

05/12/20

Newton's Second Law Question
Assume that during each pulse a mammalian heart accelerates 21.0 g of blood from 18.0 cm/s to 0.28 m/s during a time interval of 0.100 s. Calculate the magnitude of the force exerted by the heart... more
Follows • 1
Expert Answers •1

05/12/20

Trigonometric ratios
If a 20 ft ladder places against a house reaches a height of 18ft on the wall, what’s the measure of the angle that the ladder makes with the ground?
Follows • 1
Expert Answers •1

05/12/20

Trigonometric ratios
What’s the horizontal distance between the point where an airplane begins to descend and where it lands if the plane descends at a 5° angle from an altitude of 7200ft?
Follows • 2
Expert Answers •1

05/06/20

physics problem

The purpose of the sport called flight archery is to shoot an arrow the greatest possible distance. One of the greatest distances achieved in flight archery is 624 m. What would this distance be in... more
Follows • 1
Expert Answers •2

05/06/20

What are the length and width of the picture without the frame? Select a width and length below.
A framed picture has a total area y, in square inches. The thickness of the frame is represented by x, in inches. The equation y = (8 + 2x) (10 + 2x) relates these two variables. What are the... more
Follows • 2
Expert Answers •2

08/21/19

A 100m tape is 12mm wide and 0.80mm thick. If the tape is correct under a pull of 54N. Compute the percentage error made by using a pull of 68N. E=200,000MPa
Follows • 1
Expert Answers •1

06/15/19

Solve the problem
Many graduate schools require applicants to take a certain test. Those taking the test receive three​ scores: a verbal reasoning​ score, a quantitative reasoning​ score, and an analytical writing... more
Follows • 1
Expert Answers •2

06/03/19

a point on the terminal side of an angle θ in standard position has cos<0 and tanx<0. what quadrant does the terminal side lie in
Follows • 1
Expert Answers •2

06/02/19

Help please! I have a math question.

I need to solve sin(x+3pi)=1/2
Follows • 1
Expert Answers •1

06/02/19

Verify Trig Identity
(sec(x)+1)/(sec(x)-1)=cot2(x/2)
Follows • 1
Expert Answers •1

05/22/19

which of the following is the equation of the line that is parallel to y= -2x - 14 and goes through the point (-3, 1)
which of the following is the equation of the line that is parallel to y= -2x - 14 and goes through the point (-3, 1)
Follows • 2
Expert Answers •3

05/22/19

The sum of two integers is 69 and their difference is 1. Find the integers.
Follows • 1
Expert Answers •1

05/21/19

I don't know the answer help!
In the figure below,  and point H bisects :Prove ΔDIH ≅ ΔEGH.
Follows • 1
Expert Answers •1

05/21/19

I need geometry help
Prove that a line that divides two sides of a triangle proportionally is parallel to the third side. Be sure to create and name the appropriate geometric figures.
Follows • 1
Expert Answers •2

05/20/19

Geometry vocabulary

Has three sides of equal length and three 60 degree angles
Follows • 1
Expert Answers •1

05/20/19

A new street is going to be constructed....... math question

A new street is going to be constructed to connect Main Street, which runs in the east-west direction, and North Boulevard, which runs in the north-south direction, as shown in the diagram below.... more
Follows • 2
Expert Answers •1

05/17/19

pythagorean theorem
Three ballet dancers are positioned on stage. Shawn is straight behind Travis and directly left of Andy. If Travis and Shawn are 8 feet apart, and Andy and Travis are 9 feet apart, what is the... more
Follows • 2
Expert Answers •1

05/17/19

Find a bank account balance if the account starts with $1000, has an annual rate of 4%, and the money left in the account for 12 years
Follows • 1
Expert Answers •1

05/17/19

The number system skill practive and problem solving
A football team Games 3 yards in the first play Lisa's 6 yards on the second play loses 4 yards on the third plate and gains 5 yards on the foreplay what is the team's overall gain or loss for all... more
Follows • 1
Expert Answers •2

05/16/19

A strip of uniform width is to be cut off of both sides and both ends of a sheet of paper that is 8 inches by 11 inches in order to reduce the size of the paper to an area of 40 square inches.

Find the width of the strip
Follows • 1
Expert Answers •5

05/12/19

Algebra problem
If c2 - c= 21, find (c+4)2+1/(c+4)2
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.