What is the answer to the following calculation with the correct significant digits?

13.92 + 3.773 =

What is the answer to the following calculation with the correct number of significant digits?

(8.3 7.97) 18.1=

What is the answer to the following calculation with the correct significant digits?

11 6.7 =

What is the answer to the following 7.72x10¹² + 7.39x10¹² ?

What is the answer to the following 7.71x10² 7.99x10⁴ ?

What is the answer to the following 6.53x10^-3 3.35x10^-3 ?

1/T - 1/x = 1/y

If x = 3.42 and y = 0.859, what is the value of T?

x/2 - 3z= y

If z = 8.86 and y = 5.99, what is the value of x?

y= x/z^2

If x = 4.56 and y = 0.886, what is the value of z?

z^2 - x^2 = y

If x = 17.8 and y = 31.6, what is the value of z?