Ask question

Ask question

All categories

Katyanochek1 [597]

3 years ago

7

Triangles ABC and DEF are similar find d

2 answers:

gavmur [86]3 years ago

6 0

Answer:

A=D where is picture . it is required

strojnjashka [21]3 years ago

6 0

Answer:

12

Step-by-step explanation:

i took the test

You might be interested in

What’s the value of the missing angle

Arada [10]

Answer:

The answer is 120

8 0

2 years ago

Read 2 more answers

Consider the following set of vectors. v1 = 0 0 0 1 , v2 = 0 0 3 1 , v3 = 0 4 3 1 , v4 = 8 4 3 1 Let v1, v2, v3, and v4 be (colu

Alona [7]

Answer:

We have the equation

$c_1\left[\begin{array}{c}0\\0\\0\\1\end{array}\right] +c_2\left[\begin{array}{c}0\\0\\3\\1\end{array}\right] +c_3\left[\begin{array}{c}0\\4\\3\\1\end{array}\right] +c_4\left[\begin{array}{c}8\\4\\3\\1\end{array}\right] =\left[\begin{array}{c}0\\0\\0\\0\end{array}\right]$

Then, the augmented matrix of the system is

$\left[\begin{array}{cccc}0&0&0&8\\0&0&4&4\\0&3&3&3\\1&1&1&1\end{array}\right]$

We exchange rows 1 and 4 and rows 2 and 3 and obtain the matrix:

$\left[\begin{array}{cccc}1&1&1&1\\0&3&3&3\\0&0&4&4\\0&0&0&8\end{array}\right]$

This matrix is in echelon form. Then, now we apply backward substitution:

1.

$8c_4=0\\c_4=0$

2.

$4c_3+4c_4=0\\4c_3+4*0=0\\c_3=0$

3.

$3c_2+3c_3+3c_4=0\\3c_2+3*0+3*0=0\\c_2=0$

4.

$c_1+c_2+c_3+c_4=0\\c_1+0+0+0=0\\c_1=0$

Then the system has unique solution that is $(c_1,c_2c_3,c_4)=(0,0,0,0)$ and this imply that the vectors $v_1,v_2,v_3,v_4$ are linear independent.

4 0

3 years ago

Jack broke apart 5x216 as (5x200) + (5x16) to multiply mentally.What strategy did Jack use?

777dan777 [17]

D. The distributive property That is what jack used

6 0

3 years ago

30000x^2 + 2x + 1200

jasenka [17]

Answer: 2(15000x2)+x+600)

Step-by-step explanation:

8 0

3 years ago

At first public inquiry showed there were 637000 women motorcyclists in the US up from 437000 just 8 years ago before it. Find t

dimaraw [331]

I would say to do 637000-437000, which is 200000, and then do 200000/637000. You get 0.314, and the percentage of that in hundreds is 31%.

6 0

3 years ago