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UkoKoshka [18]
3 years ago
15

EXTREMELY URGENT

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer:

20.3 units

Step-by-step explanation:

AB/CB = BD/AB

9/CB = 4/9

CB = 9×9/4

CB = 81/4 = 20¼ units

20.25 (20.3 units correct to 1 dp)

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Andru [333]

5/7 so D is your final answer.

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3 years ago
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Determine an equation that describes the number of bacteria in both the foods when they are mixed.
Leto [7]

The equation that describes the number of bacteria in both the foods when they are mixed is; Option C: 35T₂ + 55T + 450

<h3>How to simply quadratic Equations?</h3>

We are given the equations that describes the number of bacteria in both the foods when they are mixed.

Equation for first bacteria is;

N₁(T) = 15T₂ + 60T + 300

Equation for second Bacteria is;

N₂(T) = 20T² - 5T + 150

The equation that describes the number of bacteria in both the foods when they are mixed is;

N₁(T) + N₂(T) = 15T₂ + 60T + 300 +  20T² - 5T + 150

⇒ 35T₂ + 55T + 450

Read more about Simplifying Quadratic Equations at; brainly.com/question/1214333

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7 0
2 years ago
Pls ill give brainelist
faust18 [17]

Answer:

D. 102

Step-by-step explanation:

All angles added together: 80,

so:

180-13-65

180-78

102

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3 years ago
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-2 x -6 x -4 =<br><br> Please help
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Is the expression below completely factored? If not, complete the factorization.
Ket [755]

Answer:

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Step-by-step explanation:

Considering the expression

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From the elements in the parenthesis, 2 and y can still be factored out such that what will be left of each element

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Hence

4y(8y3 – 12y2 + 6y) = 4y*2y(4y2 - 6y +3)

= 8y2(4y2 - 6y + 3)

6 0
3 years ago
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