Answer:

Step-by-step explanation:
To divide a fraction by another fraction, you flip the second fraction and also change the divide sign to a multiply sign.

Multiply:


Answer:
modulus of complex number is 
Step-by-step explanation:
z=x+iy is a complex numbers
the given complex number is 5+2i
the value of x is 5 and y is 2
the modulus of complex number formula is

modulus of complex number is 
Answer:
6.8
Step-by-step explanation:
To round 6.752 to the nearest tenth consider the hundredths’ value of 6.752, which is 5 and equal or more than 5. Therefore, the tenths value of 6.752 increases by 1 to 8.
Answer: he would need 3 cups of powder
Step by step explanation: for one cup of hot chocolate he needs 1/2 cup of powder, so to make six cups you simply multiply 1/2 times 6 which is 3 cups of powder.
To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.