Answer:
k=2.1
Step-by-step explanation:
7/10k=21
x7 x7 Multiply seven from each side of the equation.
10k=21
/10 /10 Divide ten from each side of the equation. 21/10=2.1
k=2.1
Well first you need to show the rest of the problems before i can truely help you sorry.
-56
Explain 9x7 is 56 then you add a negative. Please thanks and brainliest if correct!
32 40%
80 100
to find the answer, you do 32 times 100, the. divide that by 40 which equals 80
Hey,
2x^2 + 3root5x + 5
Here the product=10
And,sum=3root5
=>2x^2+2root5x+root5x+5
=>2x(x+root5)+ root5(x+root5)
=>(2x+root5)(x+root 5)