1)9.32E-7 + 1.32E+4 =

2)1.32E+4 + 1.04E+5/6.47E+4=

3) 9.93E+6/(9.32E-7)(1.32E+4)=
I keep getting a different answer from the answer my teacher provided.

1) 1.32E+4

2) 1.32E+4
3) 7.95E+8

To find the answers to these calculations, you need to understand the concept of scientific notation and how to perform arithmetic operations with numbers in scientific notation.

Scientific notation is a way of expressing numbers that are very large or very small by using powers of 10. It consists of two parts: a coefficient and an exponent. The coefficient is a number between 1 and 10, and the exponent represents the power of 10 by which the coefficient needs to be multiplied.

Let's go through each calculation step by step:

1) 9.32E-7 + 1.32E+4:
- To add numbers in scientific notation, you need to make sure that the exponents are the same. In this case, the current exponents are -7 and +4.
- To align the exponents, you can change the coefficient of one of the numbers by shifting the decimal point.
- In this case, you can change the coefficient of 9.32E-7 to 0.000000932 by moving the decimal point 7 places to the right.
- Now, you can add the coefficients: 0.000000932 + 13200 = 13200.000000932
- Finally, you can represent the answer in scientific notation: 1.32E+4 (since moving the decimal point 7 places to the right increases the exponent by 7).

2) 1.32E+4 + 1.04E+5 / 6.47E+4:
- In this calculation, we have addition and division operations.
- First, you can divide 1.04E+5 by 6.47E+4: 1.04E+5 / 6.47E+4 = 1.6079
- Now, you can add the result (1.6079) to 1.32E+4: 1.32E+4 + 1.6079 = 15079.6079
- Finally, you can represent the answer in scientific notation: 1.51E+4 (by moving the decimal point 4 places to the left and increasing the exponent by 4).

3) 9.93E+6 / (9.32E-7)(1.32E+4):
- In this calculation, you have a division operation with a multiplication in the denominator.
- First, you need to simplify the denominator by performing the multiplication: (9.32E-7)(1.32E+4) = 0.00122784
- Now, you can divide 9.93E+6 by 0.00122784: 9.93E+6 / 0.00122784 = 8.0954E+9
- Finally, you can represent the answer in scientific notation: 8.0954E+9

If you are getting a different answer from what your teacher provided, double-check your calculations and make sure you are aligning the exponents correctly and performing the arithmetic operations accurately.