If two numbers are a and b
a+b=56
a-b=16
2a=76
a=38
b=22
the product is a*b=38*22=836
Answer:
the surface area is 24
Step-by-step explanation:
there are 6 squares with area of 4 so 4 x 6 is 24
Answer:
θ = 49.4584°
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<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 = ?
Adjacent Leg = 13
Hypotenuse = 20
<u>Step 2: Find Angle</u>
- Substitute in variables [cosine]: cosθ = 13/20
- Inverse Trig: θ = cos⁻¹(13/20)
- Evaluate: θ = 49.4584°
Answer:
9
Step-by-step explanation:
3(5) - 3 * 2
15 - 6 = 9
The lines that Mark drew are perpendicular.