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3 years ago

Can someone please help me with this? What would be the measure of angle R to the nearest tenth?

Mathematics

1 answer:

jasenka [17]3 years ago

4 0

Answer:

Step-by-step explanation:

There are two ways to do this.

1. You could make an accurate diagram and measure R. This works but the computer won't like it. However you will know if you are correct. An answer ± 2 degrees would tell you that you are likely correct.

2. The second way is to find <C. Similarity guarantees that <C and <R are equal. The adjacent side to angle C is the second longest line. The second longest line in PQR is the adjacent side of <R.

Naturally we will use the second method, but you ought to try the first method. It's cumbersome but it will teach you how to read the values of triangles to make clear the trig functions.

Tan(C) = opposite over adjacent

Tan(C) = 7 / 9

Tan(C) = .77777777...

<C = tan-1(0.7777777...)

<C = 37.87

<C = 37.9

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3 years ago

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Answer:

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3 years ago

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Answer:

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3 years ago

A garage door code has 5 digits. if no digits is repeated, how many codes are possible?

Nataly_w [17]

There are 10 possible digits.

There are 5 position.

So since we cannot repeat same digital, there is 10 possible digits for first position.

We selected one. Now move to second position. We already selected one digit so now there are 9 possible digits. Just select one.

Now move to third position. Again, we already selected another digit so now there are 8 possible digits for third position.

Repeat until you run out of position.

So that would be 10·9·8·7·6 = 30240

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Step-by-step explanation:

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3 years ago