Answer:
7a ( 1,1)
7b ∅ or no solution
Step-by-step explanation:
The solution to the system is where the two functions intersect
For 7a. The parabola and the line intersect at (1,1)
For 7b The parabola and the line do not intersect so there is no solution
It is A, 60° because 180° (degree of the whole triangle) divided by the three angles is 60.
Answer:
He should travel directly
Step-by-step explanation:
Given
--- East
--- North
If he goes through east north direction, the distance (d) traveled is:



If he travels directly, the distance (d) is:
---- Pythagoras theorem




By comparison, he will travel the shortest distance if he travels directly because 
<em>Hence, he should travel directly</em>
Answer:
Step-by-step explanation:
log₂125 = log₂(5²) = 2log₂5 = 2k
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Quadratic Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
4x² + 9x - 1 = 0
<u>Step 2: Define variables</u>
a = 4
b = 9
c = -1
<u>Step 3: Find roots</u>
- Substitute:

- Exponents:

- Multiply:

- Subtract:
