Answer:
B) 72
Step-by-step explanation:
The n-th term of an arithmetic sequence An = a1 + (n - 1) d
Given :
a28 = 423/4 and d = 5/4
So
a28 = a1 + (28 - 1)5/4
Now plug in a28 = 423/4
423/4 = a1 + 27(5/4)
a1 = 423/4 - 27(5/4)
= 423/4 - 135/4
a1 = (423-135)/4
a1 = 288/4
a1 = 72
Thank you.
When you square +6 or -6 you get 36. That's less than 40.
When you square +7 or -7, you get 49. That's more than 40.
So one of the square roots of 40 is between <em>+6 and +7</em>, and
the other square root of 40 is between <em>-7 and -6 </em>.
Answer:
He dropped 2 of the 3 in the last simplification and you can't do that. You can't just get rid of two of the values that make up the number. The farthest you are able to simplify is 0.333.
Answer:13
Step-by-step explanation:
First do prime factorizatio. 39=3 times 13
91= 7 times 13
Then you have to find the same number that is 13 there is no more same number so you get 13.
Answer:
=> equation 1
=> equation 2
=> equation 3
Step-by-step explanation:
Points P, Q, R, S, and T are collinear therefore, the following equations can be written based on the segment addition postulate:
=> equation 1
=> equation 2
=> equation 3
More equations can actually be written from the diagram given using the segment addition postulate. Such as:
![PQ + QR + RS + ST = PT](https://tex.z-dn.net/?f=%20PQ%20%2B%20QR%20%2B%20RS%20%2B%20ST%20%3D%20PT%20)