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3 years ago

Quick question if I had a problem that was sin x = 18.9/20 =.945 how would I inverse sin of both sides ?

Mathematics

1 answer:

galben [10]3 years ago

6 0

Answer:

The result is about 70.9 degrees

Step-by-step explanation:

Easy for a calculator. If you're not using a calculator, it's much more tedious!

There is an inverse sine key on your calculator, but you may have to press a key (likely labeled 2nd or INV) first. The attached image shows a TI-83 display. To get the inverse sine, I first pressed the yellow 2nd key, then the sin key.

Check MODE first to make sure you're measuring angles in degrees (if that's what you want!). Some calculators display angle mode with a small letter at the top of the display, D, R, or G usually.

The left side of the equation produces just x.

$\sin{x}=.945\\\\\sin^{-1}(\sin{x})=\sin^{-1}(.945)\\x=\sin^{-1}(.945) \approx 70.9^\circ$

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Evgesh-ka [11]

<h3>I'll teach you how to solve (2w - 3)*(4w - 7)</h3>

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Apply FOIL method:

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4 years ago

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3 years ago

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How does the number of solutions of a system depend on ranks of the coefficient matrix and the augmented matrix?

fenix001 [56]

Answer:

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Step-by-step explanation:

For example, the following system has 2 different variables, x and y.

$x+y=1\\x+2y=5$

In order to find a unique solution to the system, the number of independent equations and variables in the system must be the same In the previous example, you have 2 independent equations and 2 variables, then the solution of the system is unique.

The rank of a matrix is the dimension of the vector generated by the columns, in other words, the rank is the number of independent columns of the matrix.

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3 years ago

Daniel's grandmother sent him $74.70 for his birthday. If Daniel spends $72.17 on a new video game, how much birthday money will

tamaranim1 [39]

Answer:

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