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vesna_86 [32]
3 years ago
13

A test has 10 true/false questions. How many different tests can be turned in to the teacher?

Mathematics
2 answers:
madam [21]3 years ago
5 0
Each question has 2 possible answers. There are 10 questions. 

1 - 2 
2 - 2 
3  - 2 
4 - 2 
5 - 2 
6 - 2 
7 - 2 
8 - 2 
9 - 2 
10 2                                                                                      There can be 20 different tests. 
Flauer [41]3 years ago
3 0
The same as the greatest number that can be written
with 10 binary bits:  <u>1,024</u>
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Which of the following ordered pairs are solutions to the system of equations below?
spayn [35]

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3 years ago
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tatyana61 [14]

Hey there! :)

Answer:

a) Blue.

b) 1/2.

Step-by-step explanation:

Find the probabilities for each color:

Blue: 1/8

Yellow: 3/8

Green: 4/8 or 1/2

a) The color that the spinner is the least likely to land on has the smallest probability, which in this instance, is blue.

b) The probability of the spinner landing on green can be determined by:

# of green sections /total

Therefore:

4 / 8

Simplify the fraction:

4 / 8  = 1 / 2.

3 0
3 years ago
Read 2 more answers
BC is tangent to circle A. Determine the length of AC.​
sweet-ann [11.9K]

Answer:

5

Step-by-step explanation:

AC=√(3^2+4^2)=√(9+16)=√(25)=5

3 0
2 years ago
Which is true for all pairs of values in this table? X1,2,3,4 y 0,-2,-4,-6
Mumz [18]
Given data:

X               Y
1                 0
2              - 2
3              - 4 
4              - 6

From the above table,
We have to see what sort of function is it showing.
Therefore,
Taking the first difference of the y-values.
We get,
-2 , -2 , -2

The first difference is constant for all the y-values, that is -2. Therefore it is a linear function,
So,
using the general form,
                                         y = mx + b
where m represent the slope and b represents the y-intercept.

Now,
We will use two coordinate points to find out the slope,

Let them be: (1,0) and (2,-2)
So,
m = 2 / -1
m = -2

Now the y-intercept,

As we know that,
                             y = -2x + b

Take any point from the table, let it be (1,0)

substituting it into the equation, we get;
                                                                    0 = -2(1) + b
                                                                    b = 2

Hence our equation is:
                                       y = - 2x + 2   
3 0
3 years ago
THIS QUESTION IS HARD FOR ME HELP PLZ
alina1380 [7]

Answer:

€135/12

Step-by-step explanation:

0.8×x=27

x=27÷0.8

=270/8

=135/4

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3 0
3 years ago
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