Answer:
175
Explanation:
1. an (any term) = 27
2. a1 (first term) = -7
3. d (common difference) = 7
• Use the explicit formula:
an = d(n - 1) + a1
a27 = 7(27 - 1) - 7
- Subtract inside the parenthesis ():
a27 = 7(26) - 7
- Distribute:
a27 = 182 - 7
- Subtract:
a27 = 175
Answer:
A.) 101
B.) 121
Step-by-step explanation:
If two angles are supplementary, that means they add up to 180 degrees. If you have an angle, and want to find it's supplement, you would subtract the given angle from 180.
180 - 79 = 101
180 - 59 = 121
Hope this helps!
Answer:
x = ± 
Step-by-step explanation:
-8 - 8x^2= -31
Since this is a quadratic, it needs to be factored.
First, move the x to the other side:
-8 = 8x^2 - 31
Then, get the x alone by first adding 31:
23 = 8x^2
then dividing by 8:
x^2 = 23/8
Finally, square root both sides and remember the even roots property:
x = ± 
and simplify the root 8:
x = ±
Note: This answer may have a mistake.
Answer:whut
Step-by-step explanation:
