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Fynjy0 [20]
3 years ago
5

Which of the following circles have their centers in the second quadrant? Check all that apply.

Mathematics
1 answer:
erastova [34]3 years ago
6 0

Answer:

B and C

Explanation:

Coordinates of A: (5,-5), which is in the 4th quadrant.

Coordinates of B: (-12,9), which is in the 2nd quadrant.

Coordinates of C: (-3,2), which is in the 2nd quadrant.

Coordinates of D: (2,-7), which is  in the 4th quadrant.

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according to "Black Hole Beginnings," the destruction of some stars results in inbursts of light. an intense gravitational pull.
Colt1911 [192]

According to "Black Hole Beginnings," the destruction of some stars results in an an intense gravitational pull.

To answer the question, we need to know what Black Holes are.

<h3>What are Black Holes?</h3>

Blackholes are regions of space in which no matter can escape

<h3>Characteristics of black holes</h3>
  • Black holes are formed from the remnants of  large star that dies in a supernova
  • As long as the star is three times or more larger than the sun, it will collapse
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So, when black holes are formed, some stars are destroyed and collapse due to intense gravitational forces.

So, according to "Black Hole Beginnings," the destruction of some stars results in an an intense gravitational pull.

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2 years ago
The length and width or a rectangular courtyard is 40 feet and 30 feet, respectively. In order to make the courtyard larger, an
SpyIntel [72]

Answer:

The new area is 1800feet^2

Step-by-step explanation:

Step one:

Given data

The length and width or a rectangular courtyard is 40 feet and 30 feet

we can calculate the area of the courtyard as

Area= 40*30

Area= 1200 feet^2

when the extra 15 feet is added to the width

the new width is= 30+15= 45feet

The new area is

Area= 40*45

Area= 1800 feet^2

in all the area will increase by 1800-1200= 600feet

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3 years ago
Four times a number
BlackZzzverrR [31]
Four times a number would equal 4n
6 0
3 years ago
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I never really understood what this was could u help
ycow [4]

Answer:

1. f(4) or f(n)= 28

2. f(-2) or f(n)= -2

(please consider marking brainliest <3 )

Step-by-step explanation:

n=4                           n=-2

f(n)= 5(n)+8              f(n)= 5(n)+8

f(n)= 5(4)+8              f(n)= 5(-2)+8

(n)= 20+8                 f(n)= -10+8

f(n)=28                      f(n)=-2

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3 years ago
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