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lions [1.4K]
2 years ago
9

80 PTS!!!

Mathematics
1 answer:
timama [110]2 years ago
6 0
It’s c

8 squared is 64
If you multiply that by 4 you will get 256 pi
You will not have to approximate it.
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An 80-eV electron impinges upon a potential barrier 100 eV high and 0.20 nm thick. What is the probability the electron will tun
wlad13 [49]

Answer:

0.011%

Step-by-step explanation:

See attached picture.

3 0
3 years ago
5n(3n-n+8) slove it please
lozanna [386]
Hey there! :) 

5n(3n - n + 8)

Simplify.

(5n × 3n) + (5n × -n) + (5n × 8)

Simplify.

(15n²) + (-5n²) + (40n)

Remove parenthesis

**Remember : a negative times a positive is always a negative, a positive times a positive is a positive, and a negative times a negative is a positive**

15n² - 5n² + 40n

Combine like terms.

(15n² - 5n²) + 40n

Simplify.

10n² + 40n → final answer :) 

~Hope I helped!~
4 0
3 years ago
If M(x, y) is the midpoint of AB with A(3, 5) and B(-4, 8), then which Quadrant is M located in? (Points : 1) Quadrant I Quadran
Alex Ar [27]
M is located in Quadrant II, the line BD has a midpoint located in Quadrant II, AD has a midpoint at the origin.
8 0
3 years ago
HELPPPPPPPPPPPPPPPPPP​
Annette [7]

Answer:

The equation of line in the form of Ax + By = C is: \mathbf{4x+y=-17}

Step-by-step explanation:

We need to find the equation of line, having slope m = -4 and passes through point (-2,-9)

First we need to find slope and y-intercept of the line.

The slope is given i.e. m = -4

Now, we need to find the y-intercept

Using the point (-2,-9) and slope m = -4, y-intercept can be found using:

y=mx+b\\-9=-4(-2)+b\\-9=8+b\\b=-9-8\\b=-17

Now, the equation of required line having slope m = -4 and y-intercept b = -17 is:

y=mx+b\\y=-4x-17

Now writing in form of Ax + By = C

y=-4x-17\\4x+y=-17

So, the equation of line in the form of Ax + By = C is: \mathbf{4x+y=-17}.

5 0
3 years ago
HELLLLLLPPPPPPPPPPPP
umka2103 [35]

Answer:

y=2x+7

Step-by-step explanation:

If you plug in the x and y values, they are correct.

3 0
3 years ago
Read 2 more answers
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