All Questions ⁺⁰230719 Questions

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612

0

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Science

Charlotte, a 65kg skin diver, shoots a 2kg spear with a speed of 15m/s at a fish who darts quickly away without getting hit. How fast does Charlotte move backwards when the spear is shot?

KingChris Dec 20, 2017

0

2192

1

+33

Science

A unique type of basketball is played on planet Zarth. During the game, a player flies above the basket and drops the ball in from a height of 8.5m. If the ball takes 5s to fall, find the value of gravity on Zarth.

KingChris Dec 20, 2017

0

823

1

+33

Science

Britt finds that when she drives her boat upstream she can travel with a speed of 8m/s, but she can move with a speed of 12m/s when heads downstream. What is the current of the river that Britt is driving on?

KingChris Dec 20, 2017

0

551

0

+33

Science

A .02kg sparrow flying towards a bird feeder mistakes the pane of glass in a window for an opening and slams into it with a force of 2.3N. What is the bird's acceleration?

KingChris Dec 20, 2017

0

711

1

+33

Science

Mel rolls a .01kg marble down a ramp and off the edge of a table with a horizontal velocity of 1.2m/s. The marble hits a target placed .51m from the table's edge. How high is the table?

KingChris Dec 20, 2017

0

594

0

+33

Science

Wayne hits a stationary .12kg hockey puck with a force that lasts for .01s and makes the puck shoot across the ice with a speed of 20m/s. With what force did Wayne hit the puck?

KingChris Dec 20, 2017

+4

1423

4

+476

Happy birthday

Happy birthday Chris Phill. You've been a credit you've been a star. Happy birthday Chris Phill I and everyone from the forum

AsadRehman Dec 20, 2017

+1

578

0

+113

The digits 2,4,6,8 and 0

The digits 2,4,6,8 and 0 are used to make five digit numbers with no digit repeated. What is the probability that a number chosen at random for these numbers has the property that the digits in the thousand's place and the ten's place are each larger than read more ..

jonathanxu999 Dec 20, 2017

0

716

1

Factor each of these fully

Factor each of these fully
please and thank you

1. (a^2-6)^2 - (4a + 6)^2 read more ..

Guest Dec 20, 2017

+1

849

1

+1450

f(f(f(17)))

Thanks so much!

AnonymousConfusedGuy Dec 20, 2017

Dec 19, 2017

0

715

1

Ladder problem

To paint a house, Travis leans a ladder against the wall. If the ladder is 16 feet long and it makes contact with the house 14 feet above the ground, what angle does the ladder make with the ground?

AnonymousConfusedGuy ●

Guest Dec 19, 2017

+2

2281

1

+113

The sum of the two parallel sides of a trapezoid is 22 cm.

The sum of the two parallel sides of a trapezoid is 22 cm. The segment that connects the midpoints of the two non-parallel sides divides the area of the trapezoid into two parts, in a ratio of 4:7. What is the product of the lengths of the two parallel read more ..

jonathanxu999 Dec 19, 2017

+2

656

0

+113

The digits 2,4,6,8 and 0

The digits 2,4,6,8 and 0 are used to make five digit numbers with no digit repeated. What is the probability that a number chosen at random for these numbers has the property that the digits in the thousand's place and the ten's place are each larger than read more ..

jonathanxu999 Dec 19, 2017

+1

1323

1

+1438

help plz anyone

Miriam took a survey, asking each family in her neighborhood how many pets they have. She made a graph showing the results:

read more ..

SmartMathMan Dec 19, 2017

-1

874

1

+912

Which combination of carrots and cucumbers can the person use?

Which combination of carrots and cucumbers can the person use?

ElectricPavlov ●

AngelRay Dec 19, 2017

-1

888

1

+912

Which combination of pepperoni and cheese can the pizza maker use?

Which combination of pepperoni and cheese can the pizza maker use?

AngelRay Dec 19, 2017

-1

810

1

+912

What is the maximum revenue she can make?

What is the maximum revenue she can make?

AngelRay Dec 19, 2017

-1

799

1

+912

Plot the inequality on the number line.

Plot the inequality on the number line.

AngelRay Dec 19, 2017

0

959

1

+4

help

In a race, Jason's position was −1115 feet relative to the leader after 134 minutes.
On average, how much did Jason's position relative to the leader change per minute?
Enter your answer as a mixed number, in simplified read more ..

benjam1 Dec 19, 2017

0

962

1

+1438

Help plz anyone.

Miriam took a survey, asking each family in her neighborhood how many pets they have. She made a graph showing the results:

read more ..

SmartMathMan Dec 19, 2017

+1

541

0

There are 18 packets of chocolate bars and 15 boxes of chocolate bars in the delivery parcel

There are 18 packets of chocolate bars and 15 boxes of chocolate bars in the delivery parcel
The mean number of chocolate bars in all the packets and boxes 21
The mean number of chocolate bars in all read more ..

Guest Dec 19, 2017

+1

806

3

+1450

Tricky problem

Thanks so much!

AnonymousConfusedGuy Dec 19, 2017

+2

1757

2

+5265

Multivariable Linear Systems

Solve by any method:
4x-y+z=-5
2x+2y+3z=10
5x-2y+6z=1
read more ..

rarinstraw1195 Dec 19, 2017

0

963

1

+579

frick u calculator

web2.0 calc did nothin for me

what is the solution of

OfficialBubbleTanks Dec 19, 2017

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