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Alchen [17]
3 years ago
8

A certain​ country's postal service currently uses 55​-digit zip codes in most areas. how many zip codes are possible if there a

re no restrictions on the digits​ used? how many would be possible if the first number could not be 00​?
Mathematics
1 answer:
VashaNatasha [74]3 years ago
8 0
There would be 100,000 if there are no restrictions on the digits and 90,000 if they cannot use 0 as the first digit.

If there are no restrictions, there are 10 possibilities for each digit:
10(10)(10)(10)(10) = 100,000

If the first digit cannot be 0, there are 9 possibilities for it and 10 possibilities for each of the other 4:
9(10)(10)(10)(10) = 90,000
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What is the approximate value of 113−−−√ to the nearest tenth?
castortr0y [4]

Answer:

10.6

Step-by-step explanation:

1. First, we need to find which digits √(113) is between, and that would be 10 and 11.

2. Okay, so √(113) is between 10 and 11, meaning 113 is between 100 and 121.

3. Since 113 is a little over half between 100 and 121, let's multiply 10.6 by 10.6 to see how close we are to 113:

  • 10.6 * 10.6
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4. 112.36 is pretty close to 113, therefore, the dot on the number-line should be placed at 10.6.

7 0
3 years ago
The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation.
podryga [215]
Rate of change refers to moving a certain amount of distance over a certain time period
rate of change= velocity in this case.


7 0
3 years ago
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Exterior Angles and Isosceles Triangles
Ad libitum [116K]

Step-by-step explanation:

this is not an isoceles triangle.

anyway, we need to remember 2 things :

1. the sum of all angles in a triangle is always 180°.

2. the sum of all angles around a single point on a line is 360° (as this point wound be the center of an invisible circle). and as the line cuts this circle in half, the angles on one side of the line around this point is therefore 180°.

so, the internal angle Q is then

180 = 50 + 55 + Q

Q = 180 - 50 - 55 = 180 - 105 = 75°

the exterior angle x at Q is then

180 = Q + x = 75 + x

x = 180 - 75 = 105°

3 0
3 years ago
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Plz help me i need to pass I've been trying this lesson all day and I can't figure this out
Tasya [4]

Step-by-step explanation:

step 1: given= 6*0=0

step 2: Use the distributive property

step 3: Substitute

step 4: -

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Help me solve the question
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Answer:

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Step-by-step explanation:

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