Choose all items which are true. The point (2.8) is on the graph of x + 2y = 20.
The point (-1,5) is on the graph of x + 2y = 10.
The point (7.7) is on the graph of 2x - y = 7.
The point (7.-7) is on the graph of 3x + y = 14
The point (1, 1) is on the graph of 2x + 6y = 8.

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

Agarden consists of an apple tree, a pear tree, cauliflowers, and heads of cabbage. there are 40 vegetables in the garden. 24 of them are cauliflowers. what is the ratio of the number of cauliflowers to the number of heads of cabbage?

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?