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wariber [46]
3 years ago
9

PLEASE I NEED HELP NOW!!! IF CORRECT I WILL GIVE BRAINLIEST!!

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
4 0

Answer:

- 4 4/5 *C

Step-by-step explanation:

12:00-6:00 is 6hrs

7/10*6 = 42/10 = 4 1/5

1 - 4 1/5 = - 4 4/5

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The matrix C=[1,-2_-3,7] was used to encode a phrase to [7,-28,-25,-35,-2_-21,107,90,123,17]. Find C^-1 and use it to decode the
posledela
C=  \left[\begin{array}{cc}1&-2\\-3&7\end{array}\right]  \\ C^{-1}= \left[\begin{array}{cc}7&2\\3&1\end{array}\right]  \\ \left[\begin{array}{cc}7&2\\3&1\end{array}\right] \times   \left[\begin{array}{ccccc}7&-28&-25&-35&-2\\-21&107&90&123&17\end{array}\right]  \\ =\left[\begin{array}{ccccc}49-42&-196+214&-175+180&-245+246&-14+34\\21-21&-84+107&-75+90&-105+123&-6+17\end{array}\right] \\ =\left[\begin{array}{ccccc}7&18&5&1&20\\0&23&15&18&11\end{array}\right]
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6 0
3 years ago
if hannah had $20.00 and her mom took the $20.00 but she was gave ten dollars how much would she have
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Step-by-step explanation:

$20.00 - $20.00 + $10.00

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8 0
3 years ago
Read 2 more answers
Plz help ...............................
soldier1979 [14.2K]

Answer:

It is the right-angled triangle.

Step-by-step explanation:

According to the Pythagorean theorem, a^{2}+b^{2}=c^{2}, which c is the longest side of the triangle.

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∵LHS=RHS

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