Answer:
19.4in
Step-by-step explanation:
1) formula for area of a triangle:
(b*h)/2=a
the area and height are already given so lets substitute them in the formula.
(b*23.8)/2=230.86
1) multiply by 2 on both sides
b*23.8=461.72
divide by 23.8 on both sides
b=19.4
the base is 19.4 in
hope this helps
Answer:
x=−0.433107,3.352224
Rounding up should be -0.4 and 3.4
Step-by-step explanation:
x^2 + 6x + 7 = (x + 3)^2 - 2
So the axis of symmetry is x = -3
<span> 9-4x=57
-4x = 57 - 9
-4x = 48
x = -12</span>
Answer:
Triangle AEC can be proved congruent to triangle BED by St= 8x2 .
Step-by-step explanation: