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coldgirl [10]
2 years ago
6

I will give brainliest

Mathematics
1 answer:
Irina18 [472]2 years ago
8 0

Answer: -3

Step-by-step explanation:

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If A = (7,9) and B = (3 , 12) what is the length of AB
V125BC [204]

Answer:

AB = 5 units

Step-by-step explanation:

Calculate the length using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+ (y_{2}-y_{1})^2

with (x₁, y₁ ) = A(7, 9) and (x₂, y₂ ) = B(3, 12)

AB = \sqrt{(3-7)^2+(12-9)^2}

      = \sqrt{(-4)^2+3^2}

      = \sqrt{16+9}

      = \sqrt{25}

       = 5

7 0
2 years ago
Help help help help help just need answer
kirza4 [7]

Answer:

25 miles

Step-by-step explanation:

2 inches represents 10 miles ( divide both parts by 2 )

1 inch represents 5 miles , then

5 inches represents 5 × 5 = 25 miles

5 0
1 year ago
PLEASE HELP I WILL GIVE MEDALS AND MARK BRAINLIEST
xz_007 [3.2K]
<span>This is a 30 - 45 - 105 angled triangle, so the answer would be A. 
"</span><span>Largest angle = 105, Middle angle = 45, Smallest angle = 30"</span>
5 0
3 years ago
74 rounded to the nearest hundreth
WARRIOR [948]
100 would be your answer
7 0
3 years ago
Im lost please help me
zepelin [54]
Let C = the Chinese books.
Let E = the English language books.

C = 4/5 E

E - 300 = C - 180 Notice how you get this equation. You take 300 away from the English books and 180 from the Chinese and according to the question, you get an equal number of both. Put c = 4/5E into the second equation.

E - 300 = 4/5 E - 180 Add 300 to both sides.
E = 4/5 E - 180 + 300
E = 4/5 E + 120 Now subtract 4/5 E from both sidies.
E - 4/5 E = 120
1/5 E = 120 Now multiply by 5
E = 120 * 5
E = 600

So the number of books are
600 written in English
4/5 of 600 = 2400 /5 = 480 Chinese books.

English 600
Chinese 480
6 0
3 years ago
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