3 years ago

Find the value of x.

Mathematics

1 answer:

Mariana [72]3 years ago

7 0

Answer:

Step-by-step explanation:

sin^-1(7/16)= 25.9 degrees

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Find a 2 × 2 matrix b ≠ o and b ≠ i2 such that ab = ba, where a = 1 7 0 1 . b =

riadik2000 [5.3K]

If $\mathbf A$ is invertible, then we can simply choose $\mathbf B=\mathbf A^{-1}$ because for any invertible matrix $\mathbf X$ by definition we must have $\mathbf{XX}^{-1}=\mathbf X^{-1}\mathbf X=\mathbf I$ .

We have $\det\mathbf A\neq0$ , as

$\det\mathbf A=\begin{vmatrix}1&7\\0&1\end{vmatrix}=1\times1-0\times7=1$

which means $\mathbf A$ is non-singular and has an inverse. The inverse itself would be

$\mathbf A^{-1}=\dfrac1{\det\mathbf A}\begin{bmatrix}1&0\\-7&1\end{bmatrix}^\top=\begin{bmatrix}1&-7\\0&1\end{bmatrix}$

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4 years ago

Will give brainlest thank you so much

kodGreya [7K]

Answer:

1. -1

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Step-by-step explanation:

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2 years ago

The measure of angle 1 is 27 degrees. Complement: Supplement:

Paladinen [302]

Answer:

Complement: 63°

Supplement: 153°

Step-by-step explanation:

NOTE: Supplementary angles are two angles that have a sum of 180°. Complementary angles are two angles that have a sum of 90°.

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Thank u

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Before depositing her check, Mary’s account balance was overdrawn by $64. That’s it, it was -$64. After depositing her check, he

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Damm [24]

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Step-by-step explanation:

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