Answer:
18
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
20-(4+14)/3
20-(18)/3
20-6
14
Hope this helped.
A Brainliest is always appreciated.
She is wrong. The way we know this is by this. If you are going 70 mph for 30 miles than you have to spilt the mph sign in half so 35 miles in 30 minutes.The you subtract 4 from each getting 31 miles in 26 minuets. Therefore Lethna is wrong.
Answer:
(-7 ± √(-23)) / 4
Step-by-step explanation:
Unless you have to show your work, you don't really have to use the quadratic formula unless it is unfactorable.
2x² + 9 = -7x (Add 7x to both sides)
2x² + 7x + 9 = 0 ( The quadratic formula is (-b ± √(b^2 - 4ac))/2a )
A = 2
B = 7
C = 9
(-7 ± √(49 - 72))/4
= (-7 ± √(-23))/4 (Which simplifies to an imaginary answer, proving that this is, indeed, unfactorable)
= (-7 ± √(-23))/4