Answer:
5x+5y
Step-by-step explanation:
Answer:
A.) -7
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
A² - B²
A = 3
B = -4
<u>Step 2: Evaluate</u>
- Substitute: 3² - (-4)²
- Exponents: 9 - 16
- Subtract: -7
I think the last sentence has blanks we're supposed to fill in:
The closest distance between Earth and _________ is greater than the closest distance between Earth and ______ by approximately _______ times.
The distance to Jupiter is greater, so that goes in the first blank, Mercury in the second. The third gets the quotient of the distances:
![f = \dfrac{5.9 \times 10^8}{7.7 \times 10^7} = .766 \times 10 = 7.66](https://tex.z-dn.net/?f=f%20%3D%20%5Cdfrac%7B5.9%20%5Ctimes%2010%5E8%7D%7B7.7%20%5Ctimes%2010%5E7%7D%20%3D%20.766%20%5Ctimes%2010%20%3D%207.66)
The closest distance between Earth and
Jupiter is greater than the closest distance between Earth and
Mercury by approximately
7.66 times.