Area of a triangle is base × height ÷2
base=8x+4 x=-4/8 x=-1/2
height=3x-4 x=4/3
A=b×h÷2
A=(-1/2×4/3)÷2
A=(-4/6)÷2
A=(-4/6)÷2/1 to divide by fractions flip the second and multiply
A=-4/6×1/2
A=-4/12
A=-1/3
I believe that triangle B and E are right triangles.
Answer:
The polynomial function is 
Step-by-step explanation:
A polynomial function is completely determined by its roots, up to a constant factor. So, if we want that 
, 
and 
be roots of the polynomial P, we can write it as
Now, notice that the factor 
has real coefficients, while the other one don't. So, we need to ‘‘eliminate’’ the complex coefficients that will appear. This can be done adding other complex root to the polynomial: the conjugate of 
: 2-3i. Then,
Expanding the above expression we obtain the desired polynomial
Recall that P(x) must have three roots, and this implies that P has at least degree 3. As we had to add a new root in order to obtain real coefficients, the degree of P must be at least 4. With this reasoning we assure the minimal degree.
Answer:
8.) -120
9.) -5
10.) -1
Step-by-step explanation:
8.) ab - c
5(-12) - 60
-60 - 60 = -120
9.) -10 - (-7) + 2 (3 - 4)
-3 + 2(-1)
-3 + (-2) = -5
10.) Add all the numbers up then divide by how many numbers there are.
Answer:
true
Step-by-step explanation:
5(1+2x)= 5 +10x =10x + 5
