# HELP ME...uRGENT!

Most popular questions and responses by HELP ME...uRGENT!
1. ## GEOOOOMETRY!!!!!....Angled Perimeter

ABCD is a quadrilateral with ∠ADC=∠ACD, ∠ACB=∠ABC and CD=7. If triangles ADC and ABC have perimeter 51 and 59, respectively, what is the value of BC?

2. ## geometry...TRIANGLE

ABCD is a quadrilateral with ∠ADC=∠ACD, ∠ACB=∠ABC and CD=7. If triangles ADC and ABC have perimeter 51 and 59, respectively, what is the value of BC?

3. ## probability!!!!!!!!!!

41 different balls are drawn from a bag containing balls labelled 1,2,…,300. The probability that the number of balls drawn that are labelled with an odd number is larger than the number of balls drawn that are labelled with an even number can be

4. ## physics...

A kayaker paddles due north at 2 m/s. The river the kayaker is paddling in flows towards the east at 1 m/s. After 5 seconds of paddling, how far is the kayaker from where she started in m?

5. ## ALGEBRA.....URGENT

Find the number of solutions to the equation 1/a+1/b+1/c+1/d=1 where a, b, c, d are positive integers and a≤ b≤ c≤ d.

6. ## Sigma over Phi

Let σ(n) be the sum of the positive divisors of an integer n and ϕ(n) be the number of positive integers smaller than n that are coprime to n. If p is a prime number, what is the maximum value σ(p)/ϕ(p)?

7. ## simple PHYSICS

The space shuttle had a top orbital speed of 8000 m/s and orbited in a circular orbit approximately 320 km above the earth's surface. How long was one orbit in seconds?

8. ## GEOMETRY......circle

Circles Γ1 and Γ2 intersect at 2 distinct points A and B. A line l through A intersects Γ1 and Γ2 at points C and D, respectively. Point E is the intersection of the tangent to Γ1 at C and the tangent to Γ2 at D. If ∠CBD=30∘, what is the measure

9. ## algeBRA

How many integer values x satisfy the inequality 2

10. ## ALGEBRA.

The product of 2 positive integers is 1000. What is the smallest possible sum of these 2 integers?

11. ## triple digit digit product

What is the smallest 3-digit positive number whose product of the individual digits is still a 3-digit number

12. ## Inequality Sum

x,y and z are positive integers such that x

13. ## SIMPLE physics!!!!!!

A neutral solid conducting cylinder rotates about its axis with angular speed 1600 rad/s. In addition, there is an external magnetic field of induction B directed along the cylinder's axis. What must the magnitude of the magnetic field in Teslas so that no

14. ## FACTORIAL PRODUCT(ALGEBRA)

Let N=1!⋅2!⋅3!⋅4!…9!⋅10!. Let 2^k be the largest power of 2 that divides N. What is the value of k?