Answer:
The value of k =3
Step-by-step explanation:
We need to solve this equation to become in standard form to find the value of k.

The given standard form is:

Comparing it with 
The value of k =3
Answer:
-3y -4(2y + 10)
-3y -8y -40
-11y - 40
Step-by-step explanation:
i think thats right, sorry if its not
Answer:
Equivalent expressions
A) 
C) 
Step-by-step explanation:
Given expression :

Choices given :
A) 
B) 
C) 
D) 
To find the equivalent expression.
We will first evaluate the given expression.

⇒
[Quotient of a negative dividend and a positive divisor is always negative]
Evaluating each choice to select the equivalents.
A) 
⇒
[Quotient of a positive dividend and a negative divisor is always negative]
B) 
⇒ 
⇒ 
C) 
⇒
[Product of a positive and a negative is always a negative]
⇒ 
D) 
⇒
[Product of two negatives is always a positive]
⇒ 
∴ We see that the choices A and C are equivalent.
Answer:
18
ZAOC and ZCOB are supplementary angles.
Find the
Answer: Circle
Step-by-step explanation:
It is a circle.
Center: (0,5)
r= √12 =2√3