All Questions ⁺⁰238470 Questions

0

521

1

Computer coding project

What is the sum of the ODD digits in the first 1,000 digits of "e", or Euler's number, and their count, including the first "2"? Thank you for any help or hints.

Guest Nov 3, 2019

0

1238

1

+18

An ant crawls!

A rectangular 12x20 waffle is divided into 1x1 squares. An ant crawls along a straight path from one corner to the opposite corner. How many squares of the waffle does the ant cross through?

Anish Nov 3, 2019

0

1031

1

+18

Probability Question

When I visit a local cafe, there's an 80% probability that I'll order a sandwich and a 70% probability that I'll order a soup. If there's a 5% probability that I don't order the sandwich or soup, then what's the probability that I order both the sandwich read more ..

Anish Nov 3, 2019

0

861

2

help

A cylindrical water tank is 1/5 full. If three liters were added, the tank would be 1/4 full. How many liters does the tank hold when it is full?

Guest Nov 3, 2019

0

1263

15

help please need answer fast

Let a, b and c be positive numbers satisfying ab = 11.25; ac = 20; and bc = 36. What is the value of c?

●●●●●●●●●●●●●●●

Guest Nov 3, 2019

0

829

3

PLEASE HELP ASAP

The height (in meters) of a shot cannonball follows a trajectory given by h(t)=-4.9t^2+14t-0.4 at time t (in seconds). For how many seconds is the height of the cannonball at least 6 meters?

Determine the set of all real read more ..

Guest Nov 3, 2019

+1

2132

4

Help

A cyclist travels at 20 kilometers per hour when cycling uphill, 24 kilometers per hour when cycling on flat ground, and 30 kilometers per hour when cycling downhill. On a sunny day, they cycle the hilly road from Aopslandia to Beast Island before read more ..

Guest Nov 3, 2019

0

1075

2

help

The average age of the 10 females in a choir is 30 years. The average age of the 15 males in the same choir is 35 years. What is the average age, in years, of the 25 people in the choir?

Guest Nov 3, 2019

0

569

6

Post challenges!

Anybody got some challenging problems? (algebra preferred) Anything below calculus.

●●●●●●

Guest Nov 3, 2019

0

729

3

Please Helh

Four points A, B, C, and D are chosen at random on the circumference of a circle. Find the probability that chords and intersect.

Guest Nov 3, 2019

0

772

2

help

How many even perfect square factors does 2^4*7^9 have?

Guest Nov 3, 2019

0

714

1

help

The four-digit number “25AB” is divisible by nine, with A the tens digit and B the units digit. How many different such four-digit numbers could “25AB” represent?

Guest Nov 3, 2019

0

832

1

help

What is the number of square units in the area of trapezoid ABCD with vertices A(0, 0), B(0, −2), C(4, 0) and D(4, 6)?

Guest Nov 3, 2019

+1

929

2

help

A strip of paper is available for each whole number length from 1 inch to 15 inches. What is the probability that if a strip is randomly selected, it can be used as the third side of a triangle with two sides of 5 inches and 7 inches? Express your answer read more ..

Guest Nov 3, 2019

0

770

1

help

What is the ratio of 1 pound, 4 ounces to 3 pounds, 10 ounces? Express your answer as a common fraction.

Guest Nov 3, 2019

+1

706

3

Suggestion

I was thinking there should be a search for users/members of this site, (E.g. "type name" --->User profile appears)

off-topic

Guest Nov 3, 2019

0

646

1

help

The points (-3, 2) and (-2, 3) lie on a circle whose center is on the x-axis. What is the radius of the circle?

Guest Nov 3, 2019

0

777

7

help

What part of 15 hours is 15 seconds? Express your answer as a common fraction.

●●●●●●●

Guest Nov 3, 2019

0

750

4

help

Set A has 16 elements and set B has 37 elements. The union of sets A and B has 43 elements. How many elements are in the intersection of sets A and B?

Guest Nov 3, 2019

+2

991

1

+2864

We finally know what happened to Rom

See Ginger Ale's explanation:https://web2.0calc.com/questions/does-anyone-know-what-happened-to-rom#r5

Melody, GA, SVS, and I plus a few others might already know about this
read more ..

off-topic

CalculatorUser Nov 3, 2019

0

605

1

help

The radius of a circle is increased by 100%. By what percent is the area of the circle increased?

Guest Nov 3, 2019

0

758

4

help with this?

https://prnt.sc/prpz67

Guest Nov 3, 2019

1 Online Users