Answer:
2352071 ft ^3
Step-by-step explanation:
formula for volume of a sphere is
V= 4/3 * 
* r ^3
V = 4/3 * * 82.5 ^3 = 2352071 ft ^3
Not sure at all but i think the 18 one
Answer:
J. 7
Step-by-step explanation:
RT is the same as SU, So, that means that XU is the same as RT ÷ 2. XU is 32 ÷ 2 which is 16.
3y - 5 = 16
3y = 16 + 5
3y = 21
3y/3 = 21/3
y = 7
Answer:
x=-1
Step-by-step explanation:
plug in -1 to equation
3(-1)-13=-2(9+(-1))
-3-13=-2(-8)
-16=-16
it checks.
Answer:
x° ≈ 60.4
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<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 = 43
Hypotenuse = 87
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [cosine]: cos(x°) = 43/87
- Inverse Trig: x° = cos⁻¹(43/87)
- Evaluate: x° = 60.3795
- Round: x° ≈ 60.4
