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xenn [34]
3 years ago
12

Students taking an online english test are randomly assigned 3 questions out of a set of 9 different questions. How many differe

nt sets of questions (i.e. tests) are possible for the students?
Mathematics
1 answer:
wolverine [178]3 years ago
4 0

Answer:

2 sets I think

Step-by-step explanation:

what are the answer choices

You might be interested in
If a sequence contains only whole numbers, which of these sequences could include the term 27?
erik [133]
Depending on the first term, the sequences
a_n=2a_{n-1}+1
\\
\\a_n=3a_{n-1}
\\
\\a_n=a_{n-1}+6
would work.

If the sequence began at 6, 
a_n=2a_{n-1}+1=6, 13, 27, ...

If the sequence began at 1, 
a_n=3a_{n-1}=1, 3, 9, 27, ...

If the sequence began at 3, 
a_n=a_{n-1}+6=3, 9, 15, 21, 27, ...
3 0
3 years ago
Read 2 more answers
Is math a feature of the universe or a feature of human creation?
maxonik [38]

Answer:

a feature of the universe

Step-by-step explanation:

Math is a feature of the universe because what we call math is just a way of explaining how things work.

7 0
3 years ago
Last one, ​please :)
KengaRu [80]

Answer:

m∠X = 29°

m∠V = 61°

m∠W == 90°⇒given

Step-by-step explanation:

∵ ΔXWV is right angle at W

∴ m∠W = 90°

∴ m∠X + m∠V = 180° - 90° = 90°

∵ m∠X = 2x + 5 and m∠V = 4x +13

∴ 2x + 5 +4x + 13 = 90

∴ 6x + 18 = 90

∴ 6x = 90 - 18 =72

∴ x = 72/6 = 12

∴ m∠X = 2(12) + 5 = 29°

∴ m∠V = 4(12) + 13 = 61°

5 0
3 years ago
13.
Artist 52 [7]

Answer:

5 units

Step-by-step explanation:

An isosceles triangle is a triangle with two legs that have the same length. The perimeter of a triangle is the sum of the lengths of all sides of the triangle. Now taking this into account, we know that:

2L + B = 14 units

Where:

L is the measure of one leg

B is the measure of the base

Since two legs are the same and the base is 1 less, this means the measure of each leg would be:

B = L -1

Now we have two equations:

2L + B = 14 units

B = L- 1

We plug one equation into the other and make 1 equation:

2L + (L-1) = 14 units

Get rid of the parentheses:

2L + L - 1 = 14

Combine like terms:

3L - 1 = 14

Add 1 to both sides of the equation:

3L - 1 + 1 = 14 + 1

3L = 15

Divide both sides by 3:

3L/3 = 15/3

L = 5

So the length of a leg is 5 units

Let's check!

B = L - 1

B = 5 - 1

B = 4

Then we use that to solve for the perimeter:

2L + B

2(5) + 4

10 + 4 = 14

7 0
3 years ago
If you multiply two decimals less than 1 can you predict whether the product will be less than or greater than either of the fac
ki77a [65]

I predict that the product will be less than either of the factors.

When you multiply two numbers less than ' 1 ', you are
calculating the size of a piece of a piece.  It winds up being
smaller than either of the pieces.

3 0
3 years ago
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