what is a counterexample for the following conjecture if a counterexample does not exist choose not possible conjecture all quadrilaterals are rectangles

The graph shows the number of birdhouses Penn and his father can build if they have enough time to build no more than 10 birdhouses. what is the domain of this graph? A. all whole numbers from 0 to 10 B. all real numbers C.

Four seniors and six juniors are competing for four places on a quiz bowl team. what is the approximate probability that all four seniors will be chosen at random?

Solve the system using substitution. X+Y=8 Y=3X A. (4,12) B. (2,6) C. (1/2, 3/2) D. (-4,-12)

Suppose you pay $3.00 to roll a fair die with the understanding that you will get back $ 5.00 for rolling a 1 or a 6, nothing otherwise. What is your expected value?

Paul purchased a CD player and 5 CDs. The total he spent was 257.50, and theCD player cost 210. What was the average cost of each CD

At lunchtime, Ciaran buys a sandwich. He can choose white bread or brown bread. What is the probability that he chooses brown bread?

For a concert, there are $50 reserved seat tickets and $35 general admission tickets. there are 2000 reserved seats available, and the fire code limits the total number of audience members to 3000.

What is 100 decreased by 10%

How to factor 4x^2+24x+27

One of the smallest species of insects in the world is cataphractus cinctus, a type of wasp. the average mass of this wasp is 5ug. convert this mass to grams