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horrorfan [7]
2 years ago
13

Three coins are tossed. What is the probability that all three will land heads up?

Mathematics
1 answer:
Rus_ich [418]2 years ago
7 0

Answer:

1/8

Step-by-step explanation:

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What is the distance around a triangle with the sides measuring 2⅛, 3½ and 2½?
Marta_Voda [28]
So when you have data given this kind of form... you should convert to decimal first.
So that would be:
a ≈ 2.12
b = 3.5
c = 2.5
Now just place the simple perimeter formula, and sum all sides.
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Am I right on this one.
Marat540 [252]

i think it is because...

the slope of line b is slightly steeper than the slope of line a.

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Number of stickers is less than 1145 but greater than 1100. How many stickers?
dimaraw [331]
45 stickers because 1145 - 1100 = 45.
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2 years ago
Three examples of discrete variables ​
CaHeK987 [17]

Answer:

Step-by-step explanation:

Discrete Variables can meaningfully have only specific values:

Number of coin flips: 4.

Number of books published: 2.

Distance walked, rounded to the nearest kilometer: 3

(Must be rounded up or down)

7 0
3 years ago
Find the value of X <br><br> PLEASE
Oliga [24]

Answer:

x ≈ 18

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Trigonometry</u>

Law of Cosines: a^2 = b^2 + c^2 - 2(b)(c)cosA

  • a is a side length
  • b is a side length
  • c is a side length
  • A is an angle corresponding with side a

Step-by-step explanation:

<u>Step 1: Define</u>

a = x

A = 30°

b = 16

c = 30

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

  1. Substitute:                    x² = 16² + 30² - 2(16)(30)cos30°
  2. Exponents:                   x² = 256 + 900 -2(16)(30)cos30°
  3. Evaluate:                       x² = 256 + 900 -2(16)(30)(√3/2)
  4. Multiply:                        x² = 256 + 900 - 480√3
  5. Add:                              x² = 1156 - 480√3
  6. Subtract:                       x² = 324.616
  7. Isolate <em>x</em>:                       x = √324.616
  8. Evaluate:                       x = 18.0171
  9. Round:                          x ≈ 18
3 0
2 years ago
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