Answer:
Step-by-step explanation:
There’s no equal sign.
-2x^2 + 3x - 9 = 0
The quadratic is not factorable so quadratic formula must be used.
x = (-b + - √(b^2 - 4ac))/2a
a = -2, b = 3, c = -9
x = (-3 + - √(9 - 4*-2*-9))/-4
x = (-3 + - √(-63))/-4
x = -3 + - 3i√7
--------------
-4
x = 3 + 3i√7 x = 3 - 3i√7
------------ ------------
4 4
What is the missing number in 73, 67, 61,____, 49, _____, 37 A.55,42 b.55,43 c. 55, 32 D. 55, 34
xeze [42]
Answer:
b) 55 and 43
Step-by-step explanation:
I can tell by the first 3 or so numbers that the sequence is decreasing by 6 each time, so when you go from 61- blank - 49 it has to be 55 and same with the other one.
Make a common denominator.
5/12 and 2/5 both have a common denominator of 60.
So:
5/12 = 25/60
2/5 = 24/60
25/60 + 24/60 = 49/60
There are 49/60 books in the shipment that contain POETRY and BIOGRAPHIES.
But we’re not done yet!
60/60 - 49/60 = 11/60
11/60 of the books contain mysteries.
Please give brainliest if you can!
Hope this helps!! :)