Kalvins mother tells him that the chance of a coin showing heads when he tosses it is 1/2. Does this mean that every time he tosses a coin twice, he will get one head and one tail? Explain

No

Step-by-step explanation:

The probability simply refers to the chance of an event occurring. What this means is that when a coin is tossed once, the chance that we can get a head is 50%. This is simply just referring to the likelihood of the event happening.

Now for the first toss, there is a likelihood of 50%, for the second toss too there will be a likelihood of 50%.

This is different from the fact that for every 2 throws there must be a head showing up

false

step-by-step explanation:

4y - 6 + 4y^2 - 9

before simplifying this contains 4 terms

after simplifying

4y -15 + 4y^2

it contains 3 terms