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Rashid [163]
3 years ago
13

A school assigns each student an identification number. the number consists of 3 digits out of 10 possible digits, and no digits

are repeated. how many different identification numbers are possible
Mathematics
1 answer:
tankabanditka [31]3 years ago
8 0
10-3 = 7 hopefully this helps
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-2x > -10 solve for x
Korvikt [17]

Answer:

x<5

Step-by-step explanation:

View Picture

4 0
2 years ago
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What is the domain and range of the relation shown in the table?
TEA [102]

Answer:

<u>domain: {10,15,19,32}</u>

<u>range:{5,9,-1}</u>

Step-by-step explanation:

  • As we know domain is the values of input and range is the values of output.
  • Here , x is the input and y is the output.
  • \left[\begin{array}{cc}x&y\\10&5\\15&9\\19&-1\\32&5\end{array}\right]
  • Thus the input values according to the given problem is : 10 ,15 , 19, and thus ,

⇒<em>The domain would accordingly be these four numbers : 10 , 15 , 19 , 32.</em>

  • <u>Note that we donot have any information regarding the other values of x.</u>
  • The range is : { 5,9,-1 } only as the 5 is repeated in two cases .
  • Range is unique and there must be not repetition. Thus the apt answer would be :

<em>domain: {10,15,19,32}</em>

<em>range:{5,9,-1}</em>

6 0
3 years ago
The product of two numbers is 21. If the first number is -3, which equation represents this situation and what is the second num
Misha Larkins [42]

Answer:

C.

The equation that represents this situation is -3x = 21. The second number is -7.

Step-by-step explanation:

8 0
3 years ago
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In the figure M ab =45 and M cd= 23 what is the value of x?
const2013 [10]

Answer:

34°

Step-by-step explanation:

The measure of vertical angles formed by two chords is equal to one half the sum the measures of the arcs.

In other words, x is the average:

x = (23° + 45°) / 2

x = 34°

5 0
3 years ago
daniel wants to build a sandbox that has a perimeter of 20.5 feet. the length is 5.25 feet. what is the width of their sandbox?
Pavlova-9 [17]
If you subtract 20.5 by 5.25 x 2 you will get 10 by 2 and you have the answer
8 0
1 year ago
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