Answer:
x = 7 or x = 1
Step-by-step explanation:
For this equation: a=-1, b=8, c=-7
−1x2+8x+−7=0
Step 1: Use quadratic formula with a=-1, b=8, c=-7.
x= ( −b±√b2−4ac
)/2a
x=
(−(8)±√(8)2−4(−1)(−7))/ (2(−1)
)
x= (−8±√36
)/-2
x=1 or x=7
Answer:
First, we need to know when the function is increasing, and when is decreasing.
When a function is increasing, it's because to higher <em>x-values </em>belong higher <em>y-values. </em>On the other hand, a function is decreasing when to higher <em>x-values </em>belong lower <em>y-values. </em>The effect in the graph will be a upwards direction of the function when is increasing, and a downwards direction when is decreasing.
So, according to the given graph, we see that between 0 and 4 is increasing, the higher x-values are, higher y-values are. Between 4 and 6 is decreasing, is downwards. Between 6 and 8 is increasing. Between 8 and 10 is decreasing. In finally, between 10 and 14 is neither decreasing or increasing, it remains horizontal.
All these interpretations we can expressed using math language, specifically inequalities:
- 0 < x < 4: increasing.
- 4 < x < 6: decreasing.
- 6 < x < 8: increasing.
- 8 < x < 10: decreasing.
- 10 < x < 14: neither increasing or decreasing.
The correct answer would be B.i hope that helped!! if you have any questions or concerns about the answer i gave you please feel free to let me know!!
Answer:
1
Step-by-step explanation:
multiply and divide(left to right)
=9-9+1
Add and subtract(left to right)
=1
Answer:
y = 85°
z = 35°
x = 60°
Step-by-step explanation:
y) 180 - 120 = 60, therefore:
180 - (35 + 60)
=> <u>y = 85</u>
z)
=> <u>z = 35</u>
x)
180 - (35 + 85)
=> <u>x = 60</u>
Hope this helps!
