2. The answer to number 2 is 15 boards
Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Trigonometry</u>
- [Right Triangles Only] SOHCAHTOA
- [Right Triangles Only] cosθ = adjacent over hypotenuse
- Inverse Trig
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
Angle θ = <em>x</em>
Adjacent Leg = 15
Hypotenuse = 25
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [Cosine]:
- Simplify:
- Inverse Trig:
- Evaluate:
- Round:
Answer:
(x = 0,y = 0),(x = 1, y = 5),(x= 2, y =10)
Step-by-step explanation:
the rule is to multiply x by 5.
when x = 0, y =5(0) = 0
when x = 1, y =5(1) = 5
when x = 2, y =5(2) = 10
Hope this helps!
Please mark as brainliest!
6a3-5b2+2c2-3a2bc if a=5 b=2c=-1
I believe it would be C. (-1.8, 15)