Answer:
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Step-by-step explanation:
Answer:
-5.25, -3.5, -1.75, 0, 1.75
Step-by-step explanation:
The recursive relation tells you this is an arithmetic sequence with a common difference of 1.75. Each term is 1.75 more than the one before.
To find the 2nd term, add 1.75 to the first term: -5.25 + 1.75 = -3.5
To find the 3rd term, add 1.75 to the second term: -3.5 + 1.75 = -1.75
To find the 4th term, add 1.75 to the third term: -1.75 + 1.75 = 0
and so on ...
To solve this plug in 9 for b and solve for a like so...
3a + 9 = 54
9 must be combined with 54. To do this you must subtract 9 from both sides. This will cancel out 9 from the left and bring it over to the right
3a + (9 - 9) = 54 - 9
3a + 0 = 45
3a = 45
Now we must isolate the a. To do this you have to divide 3 to both sides. This will make 3 on the left side 1 and bring 3 over to the other side
3a/3 = 45/3
1a = 15
a = 15
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
D
Step-by-step explanation:
45-45-90 triangle