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Cerrena [4.2K]
3 years ago
13

Miss Brown will randomly choose a student in justin's class to erase the board. There are 26 students in the class. What is the

probability that Ms. Brown with choose justin to erase the board 2 days in a row?
A: 1%

B: 10%

C: 0.1%

D: 8%
​
Mathematics
2 answers:
sergejj [24]3 years ago
5 0

Answer:

1%?

Step-by-step explanation:

Dima020 [189]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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A 20 foot ladder is leaning against the side of a building. The bottom of the ladder is 4 feet from the wall. How many feet abov
Semenov [28]
It form a right triangle
legnth of ladder is hypotonuse
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6 0
3 years ago
PLEASE HELP VERY IMPORTANT
Mariulka [41]

Answer:

(6, 2)

Step-by-step explanation:

K is at (-2, -3)

<u>Using the transformation equation given for this problem:</u>

(x + 8, y + 5)

(-2 + 8, -3 + 5)

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7 0
2 years ago
25 (a square) - 4 (b square) + 28bc - 49 (c square)
LUCKY_DIMON [66]

Answer:

(5a - [2b - 7c]) and (5a + [2b + 7c])

Step-by-step explanation:

Factor 25a^2 - 4b^2 + 28bc - 49c^2.

Note that - 4b^2 + 28bc - 49c^2 involves the variables b and c, whereas 25a^2 has only one variable.  Thus, try to rewrite - 4b^2 + 28bc - 49c^2 as the square of a binomial:

- 4b^2 + 28bc - 49c^2 = -(4b^2 - 28bc + 49c^2), or

                                        -(2b - 7c)^2.

Thus, the original  25a^2 - 4b^2 + 28bc - 49c^2  looks like:

                               [5a]^2 - [2b - 7c]^2

Recall that a^2 - b^2 is a special product, the product of (a + b) and (a - b).  Applying this pattern to the problem at hand, we conclude:

Thus,   [5a]^2 - [2b - 7c]^2 has the factors (5a - [2b - 7c]) and (5a + [2b + 7c])

8 0
3 years ago
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