2 years ago

Plz help !!!!!!!!1

1 answer:

7 0

Answer:

As outdoor temperatures increased, residents' electric bills increased.

Step-by-step explanation:

You might be interested in

posledela

Answer:

The answer would be 18/16 or 1 1/8.

4 0

2 years ago

jenyasd209 [6]

I think its B)55
i hope it helps

3 0

2 years ago

sweet-ann [11.9K]

.......................

3 0

2 years ago

Anastasy [175]

To calculate the relative vector of B we have to:

$P_B=\left[\begin{array}{ccc}3\\3\\-2\\3/2\end{array}\right]$

The coordenates of:

$p(t)= 12t^3-8t^2-12t+7$ , with respect to B satisfy:

$C_1(1)+C_2(2t)+C_3(-2+4t^2)+C_4(-12t+8t^3)= 7-12t-8t^2+12t^3$

Equating coefficients of like powers of t produces the system of equation:

$\left \{ {C_1-2C_3=7} \atop {2C_2-12C_4=-12} \right. \\\left \{ {{4C_3=-8} \atop {8C_4=12}} \right.$

After solving this system, we have to:

$C_1=3\\C_2= 3\\C_3= -2\\C_4= \frac{3}{2}$

And the result is:

$P_B=\left[\begin{array}{ccc}3\\3\\-2\\3/2\end{array}\right]$

4 0

2 years ago

marissa [1.9K]

I believe #7 is D
#8 B
#10 B

8 0

2 years ago