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3 years ago

Plz help this is due today AND NO LINKS OR GROSS PICTURES OR I REPORT

Mathematics

1 answer:

pshichka [43]3 years ago

4 0

Answer:

Step-by-step explanation:

an obtuse angle is an angle from 90 - 180 degrees, so it would greater than 90 degrees

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If Bob deposits $5,000 at the beginning of each year for 10 years in an account paying 12% interest compounded annually, find th

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Possibly $56000 or give me one sec for the hard answer,.

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3 years ago

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A number when divided by 899 gives a remainder 63. If the same number is divided by 29, then the remainder will be :

elena55 [62]

x = 899xy + 63

29x31xy + 29x^2+5

29(31y+2)+85

=29

63-58=5

The remainder will be 5.

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3 years ago

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What is the prime factorization of 50? A. 2x25 B. 2x5 C. 2x5(2) D. 2(2)x5

likoan [24]

9514 1404 393

Answer:

C. 2×5²

Step-by-step explanation:

The prime factors of 50 are ...

50 = 2×5×5 = 2×5² . . . . . matches choice C

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2 years ago

Which is the better deal 10 pens for 8.99 or 25 pens for 19.75

pashok25 [27]

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3 years ago

M1 Matrix is:

harkovskaia [24]

Answer:

(a)First Row, First Column =1

(b)First Row, second Column =0

(c)Second Row, First Column =0

(d)Second Row, second Column =1

Step-by-step explanation:

Given matrix $M=\left(\begin{array}{ccc}-5&3\\-8&5\end{array}\right)$

The Inverse of a 2X2 matrix

$A=\left(\begin{array}{ccc}a&b\\c&d\end{array}\right)$

can be found using the following:

$A^{-1}=\dfrac{1}{ad-bc} \left(\begin{array}{ccc}d&-b\\-c&a\end{array}\right)$

Therefore:

$M^{-1}=\dfrac{1}{(5*-5)-(3*-8)} \left(\begin{array}{ccc}5&-3\\8&-5\end{array}\right)\\=-1\left(\begin{array}{ccc}5&-3\\8&-5\end{array}\right)\\=\left(\begin{array}{ccc}-5&3\\-8&5\end{array}\right)$

Next, we find the product $M^{-1}M$

$M^{-1}M=\left(\begin{array}{ccc}-5&3\\-8&5\end{array}\right)\left(\begin{array}{ccc}-5&3\\-8&5\end{array}\right)\\=\left(\begin{array}{ccc}-5*-5+3*-8&-5*3+3*5\\-8*-5+5*-8&-8*3+5*5\end{array}\right)\\=\left(\begin{array}{ccc}1&0\\0&1\end{array}\right)$

Therefore:

(a)First Row, First Column =1

(b)First Row, second Column =0

(c)Second Row, First Column =0

(d)Second Row, second Column =1

NOTE: The multiplication of a matrix and its inverse always gives the identity matrix as seen above,

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3 years ago