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ANTONII [103]
3 years ago
9

Quiz consists of 60 true or false questions. If the student guesses on each​ question, what is the standard deviation of the num

ber of correct​ answers? Round to the nearest thousandth.
2 0r 3.873 or 0 or 5.477
Mathematics
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

5.477 ok my friend oooooo

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Which pairs of angles are alternate exterior angles? select yes or no​
sasho [114]

A - No

B - No

C - Yes

D - Yes

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C and D are alternate exterior angles

8 0
4 years ago
-6x-7=3x+11 how to solve this problem
Shalnov [3]
You have to get the x to one side so you'll subtract 3x from -6x and 3x from 3x, the 3x will cancel out and -6x - 3x is -9x-7=11, you have to add 7 from both sides the 7+7 cancels out  and also add 11+7 which leaves -9x=18, you have to divide -9x/-9 and do 18/-9, which gets you x=-2. Here's the work shown if you didn't what i said...
-6x-7=3x+11
-3x    -3x
-9x-7=11
    +7  +7
-9x=18
-9   -9
x=-2
6 0
3 years ago
Help Evaluate each expression for d = -3.
Pavel [41]
Answer:
1) 9
2) 7
3) -10
4) -54
5) -64

Step-by-step explanation:
It’s just basic substitution
Hope this helps!
3 0
3 years ago
Simplify the expressions by combining like terms<br><br> 1.5r - 3r + 8r + 2.5r
Tomtit [17]

Answer:

9r

Step-by-step explanation:

1.5r - 3r + 10.5r

10.5r + 1.5r = 12r

12r - 3r = 9r

Final Answer = 9r

5 0
3 years ago
HELLLLLLLPPPP PLZZZZZZZZZZZZ THIS IS A TEST
Reika [66]

Answer:

76%= Decimal: 0.76 and proportion 76%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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