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loris [4]
3 years ago
7

Pls help me asap!!!!

Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0

Answer:b

Step-by-step explanation:y=2x-3

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Determine all real values of p such that the set of all linear combination of u = (3, p) and v = (1, 2) is all of R2. Justify yo
Rama09 [41]

Answer:

p ∈ IR - {6}

Step-by-step explanation:

The set of all linear combination of two vectors ''u'' and ''v'' that belong to R2

is all R2 ⇔

u\neq 0_{R2}      

v\neq 0_{R2}

And also u and v must be linearly independent.

In order to achieve the final condition, we can make a matrix that belongs to R^{2x2} using the vectors ''u'' and ''v'' to form its columns, and next calculate the determinant. Finally, we will need that this determinant must be different to zero.

Let's make the matrix :

A=\left[\begin{array}{cc}3&1&p&2\end{array}\right]

We used the first vector ''u'' as the first column of the matrix A

We used the  second vector ''v'' as the second column of the matrix A

The determinant of the matrix ''A'' is

Det(A)=6-p

We need this determinant to be different to zero

6-p\neq 0

p\neq 6

The only restriction in order to the set of all linear combination of ''u'' and ''v'' to be R2 is that p\neq 6

We can write : p ∈ IR - {6}

Notice that is p=6 ⇒

u=(3,6)

v=(1,2)

If we write 3v=3(1,2)=(3,6)=u , the vectors ''u'' and ''v'' wouldn't be linearly independent and therefore the set of all linear combination of ''u'' and ''b'' wouldn't be R2.

7 0
3 years ago
Which decimal number is equivalent to 1/10 ?<br> A.1<br> B.0.1<br> C.0.01<br> D.0.001
elena-14-01-66 [18.8K]
If you would like to find the decimal number which is equivalent to 1/10, you can do this using the following step:

1/10 = 0.1

The correct result would be B. 0.1.
4 0
3 years ago
Can someone pls help need it ASAP and can you pls explain in full detail how to do it
GenaCL600 [577]

Answer:

x= 1 , y=4

Step-by-step explanation:

x-y= -3 => Equation 1

x+5y= 21 => Equation 2

<u>Substitut</u><u>ion</u><u> </u><u>Method</u><u>:</u>

<u>Substitu</u><u>te</u><u> </u><u>Equation</u><u> </u><u>1</u>=>

x=y-3 <= Equation 3

Put x=y-3 in Equation 2:

x+5y=21

( y-3)+5y=21

y-3+5y=21

6y-3=21

6y=21+3

6y=24

y=24÷6

y=4

Put y=4 in Equation 1:

x-y= -3

x-4=-3

x=4-3

x=1

Hope this helps :)

8 0
2 years ago
Read 2 more answers
The width of a rectangle is 3 cm less than the length.The area of the rectangle is 10cm^2. Write an equation that models the sit
ludmilkaskok [199]

Answer:

width is 2 and length is 5

Step-by-step explanation:

7 0
3 years ago
An elevator travels 310 feet in 10 seconds at that speed how far can this elevator travel
frez [133]

Answer:

1,860 per minute and 111,600 per hour

6 0
3 years ago
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