Answer:
f(-7) = 21
General Formulas and Concepts:
<u>Pre-Alg</u>
- Order of Operations: BPEMDAS
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = x² + 4x
f(-7) is x = -7
<u>Step 2: Solve</u>
- Substitute: f(-7) = (-7)² + 4(-7)
- Evaluate: f(-7) = 49 + 4(-7)
- Multiply: f(-7) = 49 - 28
- Subtract: f(-7) = 21
Answer:
3.49066
Step-by-step explanation:
Rad is how many many pi. 200 is 200/360 pi.
So 200 degrees has about 3.49066 radians.
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As approximation:
4 units * 4 units= 16 squared units
Solution in attachment.
<h3>x = -6, y = 9, z = -3</h3>