Answer:
Step-by-step explanation:
(1) To solve by factoring,
Given equation:
Subtract 9 from both sides of the equation.
Using zero factor principle,
The solutions are .
(2) To solve by complete the square
,
Given
Divide both sides of the equation by 4.
Square root on both sides.
(3) To solve by quadratic formula,
Here, a = 4, b = 0, c = –9
Quadratic formula,
Answer:
Step-by-step explanation:
y + 2 = 5(x - 0)
y + 2 = 5x - 0
y = 5x - 2
Answer:
680
Step-by-step explanation:
Number of red beans = 30
Number of Blue beans = 30
Number of green beans = 30
How many color combinations of 15 beans have at least 6 green beans?
Since at least 6 of the beans must be green,
Then (15 - 6) = 9
Then, the remaining 9 could be either red, blue or green.
Therefore, C(9 + (9 - 1), 3)
C(17, 3) = 17C3
nCr = n! ÷ (n-r)! r!
17C3 = 17! ÷ (17 - 3)! 3!
17C3 = 17! ÷ 14!3!
17C3 = (17 * 16 * 15) / (3 * 2)
17C3 = 4080 / 6
17C3 = 680 ways
Thank you for posting your question here at brainly. I hope the answer will help you. Below is the equation <span>using multiplication and addition that shows the total area of a generic rectangle with dimensions 37 & 42:
1200 + 280 + 60 + 14 = 1554</span>
the correct answer is a since it's not a closed circle