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3 years ago

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Mathematics

1 answer:

lianna [129]3 years ago

7 0

Answer: the magnetic field is the strongest at north pole

Step-by-step explanation:

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What is the center of the circle for this equation: (x + 3)² + (y - 2)² = 25

Ksju [112]

The formula for the equation of a circle is (x - h)² + (y - k)² = r²

where (h, k) is the center of the circle and r is the radius.

So we need to find the values of (h, k) in order to find the center of the circle.

If we simply line up the equation of our given circle with our formula,

we can see that -h = 3 or h = -3 and -k = -2 so k = 2.

So now we have our answer.

center ⇒ (-3, 2)

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3 years ago

Find the sector area.

ipn [44]

Answer:

Step-by-step explanation:

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Steven wants to increase the number of books he reads per year. He currently reads 2 books a year. He wants to triple the number

Sladkaya [172]

Answer:

$B=2\times 3^n$

Step-by-step explanation:

Exponential Growing

Steven currently reads 2 books a year. He wants to triple the number of books read per year. The first year he should read

$2*3 = 6\ books$

By the second year, he should read

$2*3^2 = 18\ books$

By the third year, he should read

$2*3^3 = 54\ books$

We can clearly see there is a geometric progression of the number of books he should read for the year n. The general formula is, being B the number of books read at the year n

$\boxed{B=2\times 3^n}$

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3 years ago

Find the reciprocal of the number. 57

liberstina [14]

Answer:

$\frac{1}{57}$

Step-by-step explanation:

The reciprocal of a number is 1 / the number,

so the reciprocal of x is $\frac{1}{x}$ .

Hope this helps, let me know if you have any questions! :)

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telo118 [61]

<h3 /><h3> $\frac{x}{7} = \frac{7}{49} \\ x = \frac{7}{49} \times 7 \\ x = \frac{49}{49} \\ x = 1$ </h3>

- BRAINLIEST answerer

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