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Crank
3 years ago
13

What is the value of 12C4 ? A) 11,880 B) 792 C) 495 D) 48

Mathematics
2 answers:
bazaltina [42]3 years ago
4 0
The answer is C  495                            


m_a_m_a [10]3 years ago
3 0
The combinations formula:
n C r = (n * ( n - 1 ) ... ( n - r + 1)) / r !
The value of 12 C 4
12 C 4 = ( 12 * 11 * 10 * 9 ) / (  4 * 3 * 2 * 1 )=
= 11.880 / 24 = 495
Answer: C ) 495 
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What is the area of the circle?
dmitriy555 [2]

We know that the area of a circle has the formula A=πr²

We are given the diameter, and as we know that the diameter is twice the radius, we can divide the given diameter by 2.

27 ÷ 2= 13.5

Now, plug-in the number into the formula.

A=πr²

A=π×13.5²

A=π×182.25

(Assume π=3.14)

A=3.14 × 182.25

A=572.265

A=572.3 square meters.

Therefore, the area of the circle is 572.3 square meters.

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3 years ago
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ElenaW [278]
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2 years ago
I need help with that
weqwewe [10]

Distribute:

4x-3(x-2y)+1/2(6x-8y)

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Gather X and Y terms

x+6y+3x-4y

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6 0
3 years ago
*SUPER EASY POINTS**COORDINATES RELATED*
andreev551 [17]

Answer:

8.  (0,-2)

9. (-2,1)

Step-by-step explanation:

Lucy's house is at (1,1)

Down means in the y coordinate , left means negative x

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4 0
3 years ago
A square lawn has area 98 ft². A sprinkler placed at the center of the lawn sprays water in a circular pattern as
torisob [31]

The radius of the circle exists approximately 4.95 feet.

<h3>How to estimate the radius of the circle?</h3>

Given the area of the square as A = 98 ft²

The side length of the square choice is equivalent to the diameter of the circle.

First, we must obtain the length of the square.

Area of a square = L^2

98 = L²

L = √98

L = 9.89 ft

Thus the diameter of the circle exists at 9.89 ft

radius = diameter/2

radius = 9.89/2

radius ≈ 4.95 feet

Therefore the radius of the circle exists approximately 4.95 feet.

To learn more about the radius of circle refer to:

brainly.com/question/19568457

#SPJ9

3 0
1 year ago
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