Answer:
= - 5n - 2
Step-by-step explanation:
There is a common difference between consecutive terms, that is
- 12 - (- 7) = - 17 - (- 12) = - 5
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 7 and d = - 5, then
= - 7 - 5(n - 1) = - 7 - 5n + 5 = - 5n - 2
Answer:
angle D = 54°
Step-by-step explanation:
Supplementary angles sum to 180°
To calculate D, subtract angle C from 180
angle D = 180° - 126° = 54°
Answer:
The answer is 4
Step-by-step explanation:
2x + 5 = 13
Now, Subtract 5 from both side we get,
2x + 5 - 5 = 13 - 5
2x = 8
Then, Divide both side by 2 we get,
2x/2 = 8/2
x = 4
Thus, The answer is 4
<u>-TheUnknownScientist</u><u> 72</u>
Answer:
x=10
y=-10
Step-by-step explanation:
multiply first row by 7
14x−21y=350
7x+8y=−10
multiply second row by 2
14x−21y=350
14x+16y=−20
subtract the first row by the second row
−37y=370
solve for y
y=−10
substitute y=-10
14x−21×−10=350
solve for x
x=10
and thats your answer
x=10
y=-10
