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2 years ago

Solve the right triangle. round your answers to the nearest tenth. help.

Mathematics

1 answer:

hammer [34]2 years ago

8 0

Answer:

19.2

Step-by-step explanation:

Cosine rule :

$\sqrt{a^{2} +b^{2} ﹣2abcos(angle ) }$

c will always be the hypotenuse.

a and b can be any if the opposite or the adjacent.

${15}^{2} + 12^{2} - 2 \times 15 \times 12 \times \cos(90) = 369$

\sqrt{369}=19.20937...

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jarptica [38.1K]

Answer:

1. 8

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Step-by-step explanation:

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2 years ago

Determine what type(s) of angles are described by the following angle measures. Two angles measuring pi/8 and 7pi/8 radians.

Marina86 [1]

Answer:

Hey there!

These would also be acute angles.

Let me know if this helps :)

4 0

3 years ago

3, 8, 13, 18, 23, 28, 33, 38

algol [13]

The given series is

$3,8,13,18,23,28,33,38,...$

Where the first term, a , is 3.

And the difference is constant, that is

$8-3=13-8=18-13=5$

So the constant difference, d is 3.

Since the difference is constant, so the given series is arthmetic.

And for explicit rule, we use the formula of nth term, which is

$a_{n}= a+(n-1)d$

Substituting the values of a and d, we will get

$a_{n} = 3+(n-1)5
\\
a_{n} = 3+5n-5
\\
a_{n} = 5n -2$

Recursive rule is used to tell us the relationship between previous and current term. And the required rule is

$a_{n} = a_{n-1} +5 , a_{1} = 3$

3 0

3 years ago

Find the value of x. 41.2 yd 5.5 yd 14.1 yd 5.1 yd

evablogger [386]

The top angle inside the triangle would be 90-20 = 70 degrees

so X = 15 / tan(7) = 5.45 = 5.5 yd

5 0

3 years ago

Read 2 more answers

What is the vertex of f(x) = 2(x - 5)2 + 12

alexira [117]

Answer:

The vertex is (5, 12)

Step-by-step explanation:

The vertex, from vertex form, is (h,k).

Vertex form is a(x - h)² + k

= 2(x - 5)² + 12

So h = 5, k = 12

The vertex is (5, 12).

I hope this helped!

6 0

3 years ago