4 years ago

Someone please help me. ASAP

Mathematics

2 answers:

Sphinxa [80]4 years ago

7 0

Answer:

z = -7.5

Step-by-step explanation:

3.5z -2.7z = -6

Combine like terms

.8z = -6

Divide each side by .8

.8z/.8 = -6/.8

z = -7.5

oksian1 [2.3K]4 years ago

3 0

Answer:

z= 12 over 47

Step-by-step explanation:

first you have to collect like terms..then that will get you -23.5z=-6 then divide both sides by -23.5z..then you should get your answer

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Felix wants to go to all 19 games at a football club. For each game, a ticket costs £29. A season ticket costs £381 and gives en

navik [9.2K]

Answer:

£170

Step-by-step explanation:

£29 x 19=£551

£551-£381=£170

Therefore, he saves £170 by buying a season ticket.

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3 years ago

Don't know how to do it please help

Anon25 [30]

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4 years ago

Read 2 more answers

4. Let B = {(1,0,1),(0,1,2), (2, -1,0)}. (a) The vectors in B are dependent. Show this. (b) Find a non-trivial solution to an(1,

Vladimir79 [104]

Answer:

Step-by-step explanation:

Given are three vectors in set B.

To show that B is dependent

The determinant

$\left[\begin{array}{ccc}1&0&1\\0&1&2\\2&-1&0\end{array}\right] \\=1(2)-1(2) =0$

Hence vectors are dependent

b) The given equation $a_1(1,0,1) + a_2(0,1,2) + a_3(2, -1,0) = 0.\\$

Let us try parametrically

These 3 vectors are collinear and hence equation would be

$\frac{x-1}{0-1} =\frac{y-0}{1} =\frac{z-1}{2-1} =s\\(x,y,z) = (1-s, s, 1+s)$

c) Basis for B would be only 2 dimensional

i.e. any two vectors out of 3 form basis

The basis would be (1,0,1) and (0,1,2)

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3 years ago

Lines a and b are perpendicular. The equation of line a is y=13x+3. What is the equation of line b?

Harlamova29_29 [7]

Any equation that includes y=1/13x.

m must be 1/13

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4 years ago

Help please due tomorrow

Nadusha1986 [10]

Answer:

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7 0

3 years ago