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3 years ago

Which of the following could be used to calculate the area of the sector in the circle shown?

Mathematics

2 answers:

mr Goodwill [35]3 years ago

8 0

Hello there.

Which of the following could be used to calculate the area of the sector in the circle shown?

π(10in)^2 37 over 360

schepotkina [342]3 years ago

3 0

The area of the sector in the circle can be calculated using the formula:
A = π r² θ / 360
where r is the radius and θ is the area subtended by sector. So,
A = π (10)² (37/360)

The answer is the first option.

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Probability The average time between incoming calls at a switchboard is 3 minutes.if a call has just come in,the probability tha

Stels [109]

Answer:

a) 0.1535

b) 0.4866

c) 0.8111

Step-by-step explanation:

The probability that the next call come within the next t minutes is:

$p(t) = 1 -e ^{- t/3}$

According to this model,

a) the probability that a call in comes within 1/2 minutes is $p(t) = 1 -e ^{- (1/2)/3}$ =0.1535

b) the probability that a call in comes within 2 minutes is $p(t) = 1 -e ^{-2/3}$ =0.4866

c) the probability that a call in comes within 5 minutes is $p(t) = 1 -e ^{-5/3}$ =0.8111

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3 years ago

For a sequence an=3/n(n+1) what is the value of a 10

FrozenT [24]

Answer:

$\large\boxed{a_{10}=\dfrac{3}{110}}$

Step-by-step explanation:

Put n = 10 to the equation $a_n=\dfrac{3}{n(n+1)}$

$a_{10}=\dfrac{3}{10(10+1)}=\dfrac{3}{10(11)}=\dfrac{3}{110}$

3 0

3 years ago

Read 2 more answers

A marina is in the shape of a coordinate grid. Boat A is docked at (3.1, −1) and Boat B is docked at (−4.1, −1). The boats are _

kirill115 [55]

Answer:

d = 7.2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra II

Distance Formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Boat A(3.1, -1)

Boat B(-4.1, -1)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d.

Substitute [DF]: $d = \sqrt{(-4.1-3.1)^2+(-1+1)^2}$
Subtract/Add: $d = \sqrt{(-7.2)^2+(0)^2}$
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Evaluate: $d = 7.2$

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3 years ago

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mariarad [96]

416/100 is the answer

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3 years ago

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Yanka [14]

9514 1404 393

Answer:

Step-by-step explanation:

Your friendly local graphing calculator or spreadsheet can tell you the quadratic regression equation. It best matches choice A.

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