Answer:
(-1 , 2) Not part of the solution
Step-by-step explanation:
from the graph:
(0 , 0) in the red part ⇒ it's a solution
(-1 , -2) in the red part ⇒ it's a solution
(1 , 2) in the red part ⇒ it's a solution
(-1 , 2) in the red part ⇒ it's Not a solution
Help,,,,,,,,,, please
alexandr402 [8]
Answer:
Statement and reason in below
Step-by-step explanation:
Hello!
x² + 6x + 1 = 0 <=>
<=> x = -6±√6²-4×1×1/2×1 <=>
<=> x = -6±√36-4/2 <=>
<=> x = -6±√32/2 <=>
<=> x = -6±2²√2/2 <=>
<=> x = -6±4√2/2 <=>
<=> x = -6+4√2/2 <=>
and
<=> x = -6-4√2/2 <=>
<=> x = -3+2√2 <=>
and
<=> x = -3-2√2 <=>
x1 = -3-2√2 and x2 = -3+2√2
Good luck! :)
Answer:
4.41666666667
Step-by-step explanation:
Answer:
More student's prefer PE. See numbers below.
Step-by-step explanation:
Remark
You have to assume that the choices are mutually exclusive. That means that if a student likes PE he can't choose Social Studies. If he likes Social Studies best then he doesn't like PE best.
Begin by finding out what 75% of the students are.
75/100 * 20 = 75 * 20/100 = 1500/100 = 15.
Fifteen students prefer PE. Only 4 like Social Studies.
15 > 4
