vertex form is 
comlpete the square

group x terms

factor quadratic coefient

take 1/2 of linear coefient and square it
4/2=2, 2^2=4
add positive and negative of it inside the parentheasees

factor perfect squarer trinomial

expand

is vertex form
Probability helps us to know the chances of an event occurring. The probability of choosing a black marble from the bowl is 0.2917.
<h3>What is Probability?</h3>
Probability helps us to know the chances of an event occurring.
Probability=(Desired Outcomes)/(Total Number of possible outcomes)
The total number of marbles in the bowl is 24, while it contains 6 white, 8 blue, 7 black and 3 red. Therefore, the probability of choosing a black marble from the bowl is,
P(Black marble) = Number of black marble/Number of total Marble
P(Black Marble) = 7/24 = 0.2917
Hence, the probability of choosing a black marble from the bowl is 0.2917.
Learn more about Probability:
brainly.com/question/795909
#SPJ1
Rent is a fixed expense! (:
Answer:
True
Step-by-step explanation:
It’s true