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White raven [17]
3 years ago
14

A student takes an 18 question multiple choice exam with five Choices for each question and guesses on each question. Assume the

variable
Is binomial. Find the probability of guessing at least 14 out of 18 correctly
Mathematics
1 answer:
serg [7]3 years ago
8 0
You will get 10 because if you guess you won’t get nothing if your a bad guess
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Which property is illustrated by the following statement if ABC=DEF and DEF=XYZ then ABC=XYZ
Harlamova29_29 [7]

Answer:

Transitive property of equality

Step-by-step explanation:

Let A be any non empty set and R is any subset of the Cartesian product A × A. Then, R is a relation on A.

The relation R is said to be a transitive relation if (a, b) ∈ R, (b, c) ∈ R, then (a, c) ∈ R.

It is given that ABC = DEF and DEF = XYZ, then ABC = XYZ.

This shows the transitive property of equality.

3 0
3 years ago
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Find x and y with only 13.1
sdas [7]

Answer:

x= 45

y= 18.5 (3 s.f.)

Step-by-step explanation:

Since the quadrilateral has 4 equal sides, it is a square and hence the 4 angles are right angles.

I have drawn the 2 triangles of the square separately for better understanding.

Please see the attached pictures for full solution.

4 0
4 years ago
Why is a thermometer an example of a positive or negative number?
nikklg [1K]

..........................

3 0
3 years ago
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Graph y < 1/3x + 1/2. What are the points???
mestny [16]
You don't have a graph there so idk if im right but i think its (0,2) and (3,1) plz tell me if im wrong :)
6 0
3 years ago
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3/4 of the shirts in a store are black. 50% of the shirts are white and the remaining 12 shirts are red. How many black masks ar
saul85 [17]

Answer:

There are total 96 shirts out of which  72 are black and  12 are white and 12 are red.

Step-by-step explanation:

Let the total number of shirts be x.

Then 3/4= 0.75 shirts are black

50% or 50/100 =0.5  of 1/4 ( 1-3/4) remaining are white

and 12 are red

x= 0.75x+0.125x+12

x= 0.875x+ 12

x-0.875x= 12

0.125x= 12

x= 12/0.125

x= 96

There are total 96 shirts out of which 3/4 are black

96*0.75= 72 are black and

96*0.25= 24  are left behind out of which 50% are white.

12 are white and 12 are red.

4 0
3 years ago
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