Answer:
(-∞, 6]
Step-by-step explanation:
The leading coefficient is negative, so this is a downward facing parabola.
The vertex is at (-7, 6).
Therefore, the range is y ≤ 6, or in interval notation, (-∞, 6].
Answer:
-5 < x <=-2
Step-by-step explanation:
9<=1-4x<21
Subtract 1 from each side
9 -1<=1-1-4x<21-1
8 <= -4x < 20
Divide each side by -4. That means to flip all inequalities
8/-4 >= -4x/-4 >20/-4
-2 >=x > -5
-5 < x <=-2
Answer:
option 3
Step-by-step explanation:
Answer:
BC = FE
Step-by-step explanation:
given ,
BA = FD and the measure of angle ABC = the measure of angle DFE
If we have BC = FE then according to the SAS criterion the two triangles are congruent
Answer:
1.4
Step-by-step explanation:
10 decreased by 1.4 is 18.6