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Leya [2.2K]
2 years ago
11

HELP DUE in 5 mins will give 20 points

Mathematics
2 answers:
Lelu [443]2 years ago
7 0

Answer:

b

Step-by-step explanation:

yawa3891 [41]2 years ago
6 0

Answer:

B

Step-by-step explanation:

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0.1875

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The surface of each crystal has an area of
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10,000,000,000 × 10^-1, 1/1,000,000,000^-1

Step-by-step explanation:

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3 years ago
Evaluate the integral:<br> dx / e^(pie*x) from 2 (upper bound) to 0.
kenny6666 [7]
Substitution:
u = - π x
d u = - π d x
d x = - d u / π 
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7 0
3 years ago
QUICK What is the solution to this system of equations? 3.2 x + 0.5 y = 4.2. Negative 1.6 x minus 0.5 y = 3.4.
8_murik_8 [283]

Answer:

The solution is x=4.75  and   y = -22

Step-by-step explanation:

To find the solution to the system of equations, we will follow the steps below:

3.2x + 0.5y = 4.2 --------------------------------------------------------------------------(1)

-1.6x -0.5y = 3.4 ----------------------------------------------------------------------------(2)

add equation (1) and equation (2)

1.6x =7.6

Divide both-side of the equation by 1.6 to get the value of x

1.6x /1.6 =7.6/1.6

x =4.75

substitute x = 4.75 into equation (1) and solve for y

3.2(4.75) + 0.5y = 4.2

15.2 + 0.5y = 4.2

subtract 15.2 from both-side of the equation

15.2 - 15.2 + 0.5y = 4.2-15.2

0.5y = -11

Divide both-side of the equation by 0.5

0.5y/0.5 = -11/0.5

y = -22

The solution is x=4.75  and   y = -22

7 0
3 years ago
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