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IRISSAK [1]
3 years ago
9

Find the area of the semicircle of 3ft

Mathematics
2 answers:
laila [671]3 years ago
8 0

Answer:

Formula is radius x radius x pi / 2

3 x 3 = 9

9 x pi = 24.46453645613141

24.46453645613141/2=12.2322682280657 or just 12.23

Step-by-step explanation:

stealth61 [152]3 years ago
5 0

Answer:

The area of this semicircle would be about 14.14 (14.1372) ft squared.

Step-by-step explanation:

Formula is A = (1/2) * π * r 2.

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katrin2010 [14]
In algebra, the conversion of a more complex number to a simpler mixed number is rather simple. For the repeated numbers, which are designated by the bar above them, we simply have to put over 9 for each number repeated and 0 for the non-repeated numbers.

In this item, we have 1.28 with bar above 28 signifying that the number can also be written as 1.28282828.... The mixed number is then equal to,
<em>1 and 28/99 or 1 and 28 over 99</em>

Therefore, the answer to this item is the second choice. 
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3 years ago
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What is the slope of the line that passes through (3,-4) and (-2,6)
Phoenix [80]

Answer:

slope = -2

Step-by-step explanation:

Slope formula: \frac{y2-y1}{x2-x1}

Given points:

(3 -4) = (x1, y1)

(-2, 6) = (x2, y2)

To find the slope, input the given points into the slope formula:

\frac{6-(-4)}{-2-3}

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6 - (-4) = 6 + 4 = 10

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Simplify:

\frac{10}{-5}=\frac{2}{-1}=-2

The slope is -2.

5 0
3 years ago
A company pays $20 per hour for up to 6 hours of work, and $30 per hour for
scoray [572]

The algebraic expression for the overtime hours after 6 hours is (6 + y) 30.

<h3>Algebraic expression</h3>

This is a system for computating mathematical expression using letters or other symbols to represent numbers, with rules for manipulating these symbols.

  • Hourly wage for 6 hours = $20 per hour
  • Overtime wage after 6 hours = $30 per hour
  • Total hours worked = x

x = (Hourly wage for 6 hours × $20 per hour) + (Overtime wage after 6 + y hours × $30 per hour

x = (6 × 20) + (6 + y) 30

x = 120 + 180 + 30y

x = 300 + 30y

The expression for the overtime hours is (6 + y) 30.

Learn more about algebraic expression:

brainly.com/question/4344214

#SPJ1

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2 years ago
Two professors in the mathematics building have offices that are consecutive odd numbers with a sum of 14,600. What are the offi
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Answer: 7299, 7301

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x + x + 2= 14,600

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x = 7,299

Therefore, the office numbers are 7299 and 7301

6 0
3 years ago
Going to sleep goodbye
Mice21 [21]

Answer:

good byy

Step-by-step explanation:

sweet dreams.

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