Answer:
d = 3
Step-by-step explanation:
Expand the right side and compare the coefficients of like terms
x² + 6x + c = x² + 2dx + d²
For the 2 sides to be equal then coefficients of like terms must be equal
compare coefficients of x- terms, then
2d = 6 ⇒ d = 3
Answer:
Step-by-step explanation: The answer is 0.5
Since supplementary angles equal 180. (2x+15) = 45, which can be found by subtracting 135 from 180. This means that x = 15. And since angle 1 corresponds to the previous angle, we can deduce that angle 1 = 45.
<em>Train A = 214
</em>
<em>
Train B = 86</em>
<em>Hope I helped!!! ^^</em>
<em>_______________</em>
<em>列車A = 214
</em>
<em>
列車B = 86
</em>
<em>私が助けてくれたらいいのに！^ ^</em>
Answer:
7/2
Step-by-step explanation:
(3,2) (5,9): Slope -->
(9-2)/(5-3) = 7/2
