3 years ago

(x+2)2+(9-3)2=4, the radius of the circle is...

Mathematics

1 answer:

quester [9]3 years ago

5 0

Answer:

x = 1/2

Step-by-step explanation:

(x + 2)2 + (9 - 3)2 = 4

2x + 4 + 18 - 6 = 4

2x + 16 = 4

2x = 4/16

2x = 1/4

x = 1/4/2

x = 2/4

x = 1/2

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Perform division before addition true or false

VladimirAG [237]

Answer:

true

Step-by-step explanation:

PEMDAS order

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3 years ago

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LuckyWell [14K]

Answer:

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3 years ago

What is the sum of the sequence 152,138,124, ... if there are 24 terms?

N76 [4]

Answer: -216

Step-by-step explanation:

To solve the exercise you must use the formula shown below:

$Sn=\frac{(a_1+a_n)n}{2}$

Where:

$a_1=152\\a_n=a_{24}$

You should find $a_{24}$

The formula to find it is:

$a_n=a_1+(n-1)d$

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Then:

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Substitute it into the first formula. Therefore, you obtain:

$S_{24}=\frac{(152-170)(24)}{2}=-216$

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3 years ago

Read 2 more answers

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olga2289 [7]

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2 years ago

We use the formula V = πr2h to find the volume of a cylinder. Make h the subject of the formula.

Gennadij [26K]

Answer:

V / ( pi r^2) = h

Step-by-step explanation:

V = pi r^2 h

Divide each side by pi r^2

V / ( pi r^2) = pi r^2 h / pi r^2

V / ( pi r^2) = h

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2 years ago