Answer:
is 32
Step-by-step explanation:
well you have 122-180 to get 58 is the other sides angle. plus you already have 90 degrees so 90 plus 58 equals 148-180 and you get 32
Answer:
you can use :
cos(X) = ( 5^2 + 6.9^2-5^2) / (2*5*6.9)
use caculator shift cos of this
2x^2-5x+1=3
2x^2= a -5x=b 1=c
the rule is: ax^2+bx+c= 0
therefore, we have to make the equation equals to zero:
2x^2-5x+1-3=0
2x^2-5x-2= 0
the rule here is: b^2-ac:
delta= 25-16=9
then you square the delta:
=√delta= 3
there are two ways to get x, either:
(-b-delta)÷2a
x...(1)= (5-3)÷4= 1/2
or, (b+delta)÷2a
x...(2)= (5+3)÷4= 2
hope it makes sense.
Andres graphed equation ⇒⇒⇒ x = y² (1)
Jody graphed equation ⇒⇒⇒ y = x² (2)
Checking the ordered pair (1,-1):
--------------------------------------------
substituting with y = -1 in equation (1)
So, x = (-1)² = 1
∴ the ordered pair satisfy equation (1) ⇒⇒⇒ Andres 's equation
substituting with y = -1 in equation (2)
So , x² = -1
∴ x =
⇒⇒⇒ which is unacceptable
i.e. x ≠ 1
∴ the ordered pair does not satisfy equation (2) ⇒⇒⇒ Jody's equation
So, The correct statement will be option (A)
Answer:
A,E,F
Step-by-step explanation:
I got it right on Plato