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3 years ago

Find the area of the shaded circle.give your answer in 3 significant numbers

Mathematics

2 answers:

DENIUS [597]3 years ago

4 0

Answer:

116 cm²

Step-by-step explanation:

The area of a circle = πr² ← r is the radius

shaded area = external area - internal area

= π × 6.5² - π × 2.3²

= π( 42.25 - 5.29)

= π × 36.96 ≈ 116 cm²

s2008m [1.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

Area of a circle = πr²

Shaded area = External area - Internal area

= π × 6.5² - π × 2.3²

= π × (42.25 - 5.29)

= π × 36.96 = <u>116.113 cm²</u>

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Answer:

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Step-by-step explanation:

Given

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3 years ago

(-6)(2) + (-8÷4) what is the anwer?

Novay_Z [31]

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Step-by-step explanation:

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3 years ago

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Answer: Nancy needs 26 minutes to driving to work.

Explanation:

Since we have given that

Time taken in eating breakfast = 10 minutes

Time taken in making her bed = 5 minutes

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$\frac{1}{3}x$

So, According to question,

$\frac{x}{3}+10+5=35\frac{1}{2}\\\\\frac{x}{3}+15=\frac{71}{2}\\\\\frac{x}{3}=\frac{71}{2}-15\\\\\frac{x}{3}=\frac{71-30}{2}=\frac{41}{2}\\\\x=\frac{123}{2}$

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3 years ago

The square root of a negative number, such as StartRoot negative 144 EndRoot, is undefined. Explain why the square root of –x, S

IRINA_888 [86]

Answer:

see the explanation

Step-by-step explanation:

we have

$f(x)=\sqrt{-x}$

we know that

The radicand of the function cannot be a negative number

$-x\geq 0$

Solve for x

Multiply by -1 both sides

$x\leq 0$

The domain of the function f(x) is the interval -----> (-∞, 0]

The domain is all real numbers less than or equal to zero

The range of the function f(x) is the interval ----> [0,∞)

The range is all real numbers greater than or equal to zero

<em>Example</em>

For x=144

$144\leq 0$ ----> is not true

This value of x not satisfy the domain

substitute

$f(x)=\sqrt{-144}$ ----> this value is undefined

For x=-144

$-144\leq 0$ ----> is true

This value of x satisfy the domain

substitute

$f(x)=\sqrt{-(-144)}$

$f(x)=\sqrt{144}$ ----> this value is defined

therefore

The function will be undefined for all those values of x that do not belong to the interval of the domain of the function

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3 years ago

Read 2 more answers

Find the median<br> 5 12 18 7 24 16

brilliants [131]

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3 years ago

Find the area of the shaded circle.give your answer in 3 significant numbers​

Find the area of the shaded circle.give your answer in 3 significant numbers