Bruh thats hard but still ill give it a try promises me you going to thanks me
g*f = (2x -6)*(-4x+7) = -8x2 + 14x + 24x - 42 = -8x2 + 38x - 42
<span>Then, (g*f)(1) = -8 (1)2 + 38 (1) - 42 = -12</span>
We can solve this problem using discriminant.
x^2-4x-12's discriminant is
(-4)^2-4*-12=16+48 which is clearly larger than 0
This means that it crosses over the axes 2 times.
In case you don't know what discriminant is, its in equation ax^2+bx+c
the discriminant is b^2-4ac.
If its positive it has 2 crosses with x axis, if negative then 0 crosses, if 0 then 1 cross.
Hope this helped at least a little bit :D
Answer: x is on the side we’re the prime example if found if u have a example
Step-by-step explanation:
The length of BC as shown in the diagram is 6.32units
<h3>Calculating distance between two points</h3>
The formula for calculating the distance between two points is expressed as:
D = √(x2-x1)²+(y2-y1)²
Given the following coordinate points (3, 6) and (5, 0)
Substitute
BC = √(0-6)²+(5-3)²
BC = √(36+4)
BC = √40
BC = 6.32 units
Hence the length of BC as shown in the diagram is 6.32units
Learn more on distance formula here: brainly.com/question/661229
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Answer:
BC=√7
Step-by-step explanation:
AC=4
AC=AH+HC
=3HC+HC
=4HC
HC=1/4AC=1/4×4=1
AH=3HC=3×1=3
BH⊥ AC
AB=AC=4