Tomorrow night at ten because 48 hours is two days. So two days from last night at ten.
A quadratic in vertex form reads as
(<em>x</em> - <em>a</em>)² + <em>b</em>
where (<em>a</em>, <em>b</em>) is the vertex.
To get the given quadratic in this form, complete the square:
<em>x</em>² - 6<em>x</em> - 40 = <em>x</em>² - 6<em>x</em> + 9 - 49 = (<em>x</em> - 3)² - 49
Or, work backwards by expanding the vertex form and solving for <em>a</em> and <em>b</em> :
(<em>x</em> - <em>a</em>)² + <em>b</em> = <em>x</em>² - 2<em>ax</em> + <em>a</em>² + <em>b</em>
So if
<em>x</em>² - 6<em>x</em> - 40 = <em>x</em>² - 2<em>ax</em> + <em>a</em>² + <em>b</em>,
then
-2<em>a</em> = -6 → <em>a</em> = 3
<em>a</em>² + <em>b</em> = -40 → <em>b</em> = -49
Answer:
3x-x+2=4
hope it right it should be i grad early
In the deck of cards, there is a total of 52 cards which
comprises of: kings, queens, jacks, 10, 9, 8, 7, 6, 5, 4, 3, 2, and aces.
In the problem, we were asked the probability of less than
5, so it would be Ace, 2, 3, and 4. 5 is not included since the problem didn’t
ask less than or equal to.
So 4 cards and we have 4 suits in the deck. So 4 x 4 = 16.
16/ 52 = .31 is the probability.
Step-by-step explanation:
0.0003÷0.0000000009=
333,333.33333333
