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notsponge [240]
3 years ago
6

Could someone please explain and answer these? Thank you!

Mathematics
2 answers:
MissTica3 years ago
7 0
So first thing more u need to add all the numbers and look at it and think. I pretty sure I'm right
Trava [24]3 years ago
6 0

Answer: C. 782,000(1.05)10


And


C.210



You might be interested in
B
Harman [31]
La respuesta creo q es 3x-1
5 0
3 years ago
Determine if the statement is true or false, and justify your answer. Suppose A is a matrix with n rows and m columns. If n <
Natali5045456 [20]

Answer:

The question is incomplete as there are given options ;

Q:

Determine if the statement is true or false , and justify your answer . Suppose A is a matrix with n rows and m columns . If n < m, then the columns of A span R True, since there are more columns than rows. O False, since there are not enough columns to span R". True, since every column of A must be a nonzero column, False, since every column of A may be a zero column, True, since every column of A must be a non zero column, False, since every column of A may be a zero column

Step-by-step explanation:

Considering a matrix A with n-rows and m-columns,

given that n is less than m i.e the rows is less than the columns

then the columns of A span Rn? TRUE OR FALSE?

the matrix is of nxm as n is less than m, hence from linear transformation, T will span : Rm towards Rn

the concept of ranking of a matrix is applied here as ranking entails the  number of linearly independent rows or columns vectors in a matrix, in this case

the order is n x m where n is less than m, as such the rank of the matrix is n

So, Rank of MATRIX A is n

To prove if the rows vectors are linearly independent or not since n is the rank of the matrix

In this case, m columns vector will be considered with respect to n which is the rank and which is also less than m from the conditions, as such there exist a linearly independent relationship between them which R may be spanned since we know that from ranking, reduction to echelon form comes into play by trying to reduce every element of the column A to zero.

  • Trying to reduce to echelon form implies all the element of column A may or may not zero.

from the foregoing, the last option is the correct answer ; False, since every column of A may be a zero column

6 0
3 years ago
Plz do number fifteen please!
vodomira [7]
The answer is X=-.75 (the line between -1 and -.5) and Y=-1, I hope this helps!
4 0
3 years ago
Please help me with this. will give brainliest due in 5 minutes
anyanavicka [17]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Using the quadratic formula to solve 7x2 -x = 7, what are the values of x?
Sunny_sXe [5.5K]

Answer:

x=-7

Step-by-step explanation:

7x2-x=7

7x2=14.

14-x=7

When you finished the last step, you will subtract 14 to both sides.

14-x=7

14-14-x=7-14

this will cancel out the 14 on the left.

And will leave you with:

-x=7-14

7-14 is -7.

and this will get you to

-x=-7

To finish this off, you have to turn the negative x/variable, into a positive x/variable.

So, you will divide both sides of the equation by the same term.

-x = -7

into

\frac{-x}{1} =\frac{-7}{1}

and it will be -7.

I hope this helps      :)

8 0
3 years ago
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