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Alona [7]
3 years ago
7

Here’s the next problem:)

Mathematics
2 answers:
horsena [70]3 years ago
6 0

Answer:

disagree

Step-by-step explanation:

toa=opposit over adjacent= 12/9

tan(x)=12/9

tan^-1=12/9

x= 53.1

Irina18 [472]3 years ago
4 0

Answer:

Disagree

Step-by-step explanation:

x actually equals 53.13

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Make x the subject: v = 2/3 x + 2<br> ​
Deffense [45]

Answer:

x = 3/2 v - 3 (or x = 3v/2 - 3)

Step-by-step explanation:

v = 2/3 x + 2

v - 2 = 2/3 x

3/2 v - 3 = x

4 0
2 years ago
The volume of a cylinder is 81 cm3 if the radius is 3 cm what is the height of the cylinder
liq [111]

Answer:

h = 2.86479 cm

General Formulas and Concepts:

<u>Symbols</u>

  • π (pi) ≈ 3.14

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Geometry</u>

Volume of a Cylinder Formula: V = πr²h

  • <em>r</em> is radius
  • <em>h</em> is height

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

<em>V</em> = 81 cm³

<em>r</em> = 3 cm

<u>Step 2: Solve for </u><em><u>h</u></em>

  1. Substitute in variables [Volume of a Cylinder Formula]:                                81 cm³ = (3.14)(3 cm)²h
  2. Evaluate exponents:                                                                                         81 cm³ = (3.14)(9 cm²)h
  3. Multiply:                                                                                                             81 cm³ = (28.2743 cm²)h
  4. [Division Property of Equality] Divide 28.2743 cm² on both sides:              2.86479 cm = h
  5. Rewrite:                                                                                                             h = 2.86479 cm
5 0
3 years ago
Look at each pair of expressions. Select Equivalent or Not Equivalent for each pair Equivalent Not Equivalent a. f+f+fand 31 b.
nadya68 [22]

Answer:

ikr

Step-by-step explanation:

7 0
3 years ago
Help me please i need some help.
Ber [7]

Answer:

2,5, 6

Step-by-step explanation:

a coefficient is the number placed before the variable in equations and the other numbers, in this case 7 and 4, are called constants

3 0
2 years ago
Solve:<br> 10c + 20 = 40<br> c =
Dvinal [7]
C= 2


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8 0
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