Answer:
k=13
Step-by-step explanation:
19 + 12k = –k − 20
19+20=39=13k
k=13
Your question is incomplete. The complete question is attached down
Answer:
JM = 20 units
Step-by-step explanation:
∵ Hexagon RSTUVW is similar to hexagon JKLMNP
∴ The corresponding sides and diagonals have a constant ratio
∴ 
∵ ST = 6 units
∵ KL = 10
∴ 
- Simplify it by dividing up and down by 2
∴ 
∵ 
∵ RU = 12 units
∴ 
- By using cross multiplication
∴ JM × 3 = 5 × 12
∴ 3 JM = 60
- Divide both sides by 3
∴ JM = 20 units
Answer
given equation,
x⁵²-21 x+20
A number to be divisible by the another number means that on dividing the remainder should be zero.
if x⁵²-21 x+20 is divisible by x− 1 means that x-1 should completely divide the equation.
so,
x -1 = 0
x = 1
x⁵²-21 x+20 to be divisible it should be equal to zero when x = 1
putting x = 1
= (1)⁵²-21 (1)+20
= 1 - 21 + 20
= 21 -21
= 0
hence x = 1 is the root of the equation
so, x⁵²-21 x+20 is divisible by x− 1.
Answer:
C. x > -1
Step-by-step explanation:
First you need to cancel out the -9 so you add 9 what you fo to one side you do to the other so -10+9 is -1 and you bring down the sign and you end up with x > -1
