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Dvinal [7]
3 years ago
8

Please answer the following please!!

Mathematics
2 answers:
Serhud [2]3 years ago
5 0

Answer:

16

Step-by-step explanation:

Given

4c + d and c = 5, d = - 4, then substitute values into the expression

= (4 × 5) + (- 4) = 20 - 4 = 16

FromTheMoon [43]3 years ago
3 0

Hey!

-----------------------------------------------------------------

We know that (a = -3), (b = 2), (c = 5), (d = -4).

-----------------------------------------------------------------

Solution:

= 4c + d

= 4(5) + (-4)

= 20 - 4

= 16

-----------------------------------------------------------------

Answer:

16

-----------------------------------------------------------------

Hope this helped, and good luck :)

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Let v be an eigenvector of a matrix A with a corresponding eigenvalue ?=2. Find one solution x of the system Ax=v.
Murljashka [212]

Answer with explanation:

For, a Matrix A , having eigenvector 'v' has eigenvalue =2

 The order of matrix is not given.

It has one eigenvalue it means it is of order , 1×1.

→A=[a]

Determinant [a-k I]=0, where k is eigenvalue of the given matrix.

It is given that,

k=2

For, k=2, the matrix [a-2 I] will become singular,that is

→ Determinant |a-2 I|=0

→I=[1]

→a=2

Let , v be the corresponding eigenvector of the given eigenvalue.

→[a-I] v=0

→[2-1] v=[0]

→[v]=[0]

→v=0

Now, corresponding eigenvector(v), when eigenvalue is 2 =0

 We have to find solution of the system

→Ax=v

→[2] x=0

→[2 x] =[0]

→x=0, is one solution of the system.

5 0
4 years ago
Julio bought a total of 20 medium and large pumpkins. If he spent $53 and bought 6 more large pumpkins as medium pumpkins, how m
Tatiana [17]
20 medium and large pumpkins

m ... number of medium pumpkins
l ... number of large pumpkins

20 = m + l
20 = m + (m + 6)
20 = 2 * m + 6
2 * m = 20 - 6
2 * m = 14
m = 7 medium pumpkins

l = 20 - 7 = 13 large pumpkins

Result: Julio bought 13 large pumpkins.
5 0
3 years ago
Wht is the substitution of x+y=9 and x=2y
Rama09 [41]
I hope this helps you



2y+y=9



3y=9



y=3


x=2y=2.3=6
3 0
4 years ago
Mary borrowed $700 from a bank for 3 years and was charged simple interest. The total interest that she paid on the loan $42. As
Mashcka [7]

Answer:

2 %

Step-by-step explanation:

Money borrowed, Principal, P = $ 700

time of investment, T = 3 years

Total interest paid, Simple interest, S.I = $ 42

Let the rate of interest is R.

Use the formula for simple interest.

S.I. =\frac{P\times R\times T}{100}

By substituting the values

42 =\frac{700\times R\times 3}{100}

4200 = 2100 R

R = 2 %

Thus, the rate of interest is 2%.

3 0
4 years ago
Can u please have help i cant get this ​
adell [148]

Answer:

Step-by-step explanation:

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I have highlighted the points so you can see where they lay on the lines. You can see only one set of points is on 2 different lines.

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7 0
3 years ago
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