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miss Akunina [59]
3 years ago
6

What is the difference between (-58) and (+35) ?

Mathematics
2 answers:
romanna [79]3 years ago
7 0
To do this question, you are best splitting it into two halves: getting to 0, and then 35
Starting at -58, we want to get to 0
-58 + 58 = 0
Then, we get to 35 from 0
0 + 35 = 35
Now, add the two values together
58 + 35 = 93
The difference is 93
Rus_ich [418]3 years ago
3 0
If the equation is -58-35, the answer would be -93. It would be -93 because you would KEEP THE SIGN OF THE BIGGER NUMBER (Whether it's - or +) IF THE SIGN IS THE SAME YOU ADD (If the sign is - and - or + and +) IF THE SIGN IS DIFFERENT YOU SUBTRACT (So that means if you have + and - or - and +).

I hope this helps!
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A seagull flying in the air over water drops a crab from a height of 45 feet.The distance the crab is from the water as it falls
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For the seagull to catch the crab, h(t)=g(t) so:

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16t^2-13t-22=0  using the quadratic equation:

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Find the? inverse, if it? exists, for the given matrix.<br><br> [4 3]<br><br> [3 6]
True [87]

Answer:

Therefore, the inverse of given matrix is

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

Step-by-step explanation:

The inverse of a square matrix A is A^{-1} such that

A A^{-1}=I where I is the identity matrix.

Consider, A = \left[\begin{array}{ccc}4&3\\3&6\end{array}\right]

\mathrm{Matrix\:can\:only\:be\:inverted\:if\:it\:is\:non-singular,\:that\:is:}

\det \begin{pmatrix}4&3 \\3&6\end{pmatrix}\ne 0

\mathrm{Find\:2x2\:matrix\:inverse\:according\:to\:the\:formula}:\quad \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}^{-1}=\frac{1}{\det \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}}\begin{pmatrix}d\:&\:-b\:\\ -c\:&\:a\:\end{pmatrix}

=\frac{1}{\det \begin{pmatrix}4&3\\ 3&6\end{pmatrix}}\begin{pmatrix}6&-3\\ -3&4\end{pmatrix}

\mathrm{Find\:the\:matrix\:determinant\:according\:to\:formula}:\quad \det \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}\:=\:ad-bc

4\cdot \:6-3\cdot \:3=15

=\frac{1}{15}\begin{pmatrix}6&-3\\ -3&4\end{pmatrix}

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

Therefore, the inverse of given matrix is

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

4 0
3 years ago
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