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yuradex [85]
2 years ago
8

Chapter 2 Review

Mathematics
1 answer:
Ivan2 years ago
4 0
It’s A
Because I just did it
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Find the equation of the circle with center (4,5) which passes through the y-intercept of the line 5x-2y+6=0​
Elena-2011 [213]

Answer:

(x-4)^2 + (y-5)^2 = 20

Step-by-step explanation:

Rearrange the line equation of 5x - 2y + 6 = 0

So y = 5/2x +3

The y-intercept of the line equation is 3 as when x=0, y=3.

We know the Circle has the formula (x-4)^2 + (y-5)^2 = ?^2 from the question but with the intercept, we can find the entire equation as the y-intercept is (0,3) so we can substitute it into the equation to find the full equations so:

(0-4)^2 + (3-5)^2 = ?^2

This simplifies to:

(-4)^2 +(-2)^2 = ?^2

16 + 4 = 20 = ?^2

The answer is 20 so the equation of the circle is (x-4)^2 + (y-5)^2 = 20

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2 years ago
The size of a typical virus is about 0.000008 centimeters, which can be
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I wanna say it’s d because of the way it’s set up, i hope this helps if not i’m really really sorry
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3 years ago
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Find a number smaller than 19 that has more factors than the numbers 19 21 23 25
Pepsi [2]

18 has more factors than all of those numbers.

1, 2, 3, 6, 9, 18 are all the factors of 18.

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2 years ago
A toy store’s percent of markup is 30%. A model train costs the store $50. Find the markup.
Ede4ka [16]
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3 years ago
I need help with this question plsss
olga55 [171]

Answer: maybe its 6

Step-by-step explanation:

i think its 6 because it has +3 so maybe adding 3+3

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3 years ago
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