Answer:
Step-by-step explanation:
Total number of toll-free area codes = 6
A complete number will be of the form:
800-abc-defg
Where abcdefg can be any 7 numbers from 0 to 9. This holds true for all the 6 area codes.
Finding the possible toll free numbers for one area code and multiplying that by 6 will give use the total number of toll free numbers for all 6 area codes.
Considering: 800-abc-defg
The first number "a" can take any digit from 0 to 9. So there are 10 possibilities for this place. Similarly, the second number can take any digit from 0 to 9, so there are 10 possibilities for this place as well and same goes for all the 7 numbers.
Since, there are 10 possibilities for each of the 7 places, according to the fundamental principle of counting, the total possible toll free numbers for one area code would be:
Possible toll free numbers for 1 area code = 10 x 10 x 10 x 10 x 10 x 10 x 10 =
Since, there are 6 toll-free are codes in total, the total number of toll-free numbers for all 6 area codes =
The first four-term of the sequence is found by the given equation is given as 144, 36, 9, and 9/4.
<h3>What is a sequence?</h3>
A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.
The given equation will be
And
For n = 4, we have
For n = 3, we have
For n = 2, we have
More about the sequence link is given below.
brainly.com/question/21961097
Answer:
1. AB=CB def of isosceles triangle
2. AD=CD DEF of median
3. BD=DB reflexive property
4. ADB=CDB SSS
Step-by-step explanation:
ummmm its just the right answer trust
Answer:
Hi there!
The domain is:
20<=x<=40
Step-by-step explanation:
This states that:
x>=20
x<=40
Which fits the problem!
Hope this helps
Answer:
1.✓3/2
2 2✓6/5
3cosecθ
have a great day ahead
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