Every year, the veterinary hospital at a major research university treats a number of horses that have stones called enteroliths in their guts. A sample of 20 years shows that on average about 2% of horses presenting at the veterinary hospital are treated for enteroliths. Some breeds of horses seem more prone to developing enteroliths than others. Below is a table with the distribution of enteroliths among the breeds. Breed Arabian Thoroughbred Appaloosa Morgan Quarter horse Probability 0.3 .2 .15 .10 ? The probability that a horse arriving at the veterinary hospital is not an Arabian or a quarter horse is: (a) 0.55. (b) 0.25. (c) 0.45. (d) 0.75.

(c) 0.45

Step-by-step explanation:

Arabian = P(Ar) = 0.30

Thoroughbred = P(T) = 0.20

Appaloosa = P(Ap) = 0.15

Morgan= P(M) = 0.10

Quarter horse = P(Q) = ?

The probability of horse not being an Arabian or a quarter horse is the sum of the probabilities of a horse being any of the remaining breeds (Thoroughbred, Appaloosa, Morgan):

The probability is 0.45.

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

a 360 degree rotation

step-by-step explanation: