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____ [38]
3 years ago
5

A test consists of 490 true or false questions. If the student guesses on each question, what is the standard deviation of the n

umber of correct answers? Round the answer to the nearest hundredth.
Mathematics
1 answer:
monitta3 years ago
3 0
I believe the answer is 1.
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Find two consecutive even integers whose product is 120
ipn [44]

Answer:

10 and 12 are two even integers whose product =120

Step-by-step explanation:

10 and 12 are two even integers whose product =120

10\times 12=120

8 0
3 years ago
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leonid [27]
Square root of 154m^2 = 12.5~
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3 years ago
Can anyone help me with this?
faltersainse [42]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
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A group of students went on a field trip. There were 3 boys for every 4 girls in the group. If there were 20 girls, how many stu
guajiro [1.7K]

Answer:

35 students

Step-by-step explanation:

So if every 3 boys there is 4 girls you can solve that there is 5 times the amount of girls to get to 20. So to solve for the boys you do the same.

3 x 5 = 15

That means there are 15 boys and 20 girls but we want to know the total so what you do is just add 15+20=35

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4 0
3 years ago
(-8, -2) and (1, 9) find the slope
sergejj [24]

Answer:

11/9

Step-by-step explanation:

To find the slope

m = ( y2-y1)/(x2-x1)

    = ( 9 - -2)/(1 - -8)

    = ( 9+2)/ (1+8)

    = 11/9

6 0
2 years ago
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