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Daniel [21]
2 years ago
12

Right triangle ABC is shown. What equation can be used to solve for c?

Mathematics
1 answer:
Pepsi [2]2 years ago
6 0

Check the picture below.

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In the triangle below,<br> y = [ ? ] cm. Round to the<br> nearest tenth.
sattari [20]

Answer:

The answer is

<h2>12.3 cm</h2>

Step-by-step explanation:

Since the triangle is a right angled triangle we can use trigonometric ratios to find y

To find y we use cosine

cos∅ = adjacent / hypotenuse

From the question

y is the adjacent

The hypotenuse is 15

So we have

\cos(35)  =  \frac{y}{15}  \\ y = 15 \cos( 35 )  \\ y = 12.28728

We have the final answer as

<h3>12.3 cm to the nearest tenth</h3>

Hope this helps you

7 0
3 years ago
Line a is perpendicular to B.<br> if the slope of line A is -3/4 what is the line of B
tatyana61 [14]

Step-by-step explanation:

line a is perpendicular to B.

if the slope of line A is -3/4 what is the line of B

3 0
2 years ago
Use special right triangles to find the exact value (no decimals).
fgiga [73]

Let’s find some exact values using some well-known triangles. Then we’ll use these exact values to answer the above challenges.

sin 45<span>°: </span>You may recall that an isosceles right triangle with sides of 1 and with hypotenuse of square root of 2 will give you the sine of 45 degrees as half the square root of 2.

sin 30° and sin 60<span>°: </span>An equilateral triangle has all angles measuring  60 degrees and all three sides are equal.  For convenience, we choose each side to be length 2.  When you bisect an angle, you get 30 degrees and the side opposite is 1/2 of 2, which gives you 1.  Using that right triangle, you get exact answers for sine of 30°, and sin 60° which are 1/2 and the square root of 3 over 2 respectively.

Now using the formula for the sine of the sum of 2 angles,

sin(A + B) = sin A cos<span> B</span> + cos A sin B,

we can find the sine of (45° + 30°) to give sine of 75 degrees.

We now find the sine of 36°, by first finding the cos of 36°.

<span>The cosine of 36 degrees can be calculated by using a pentagon.</span>

<span>that is as much as i know about that.</span>

5 0
3 years ago
14 divided by 3/8 ? (The question mark is not part of the problem...neither is this..)
dmitriy555 [2]
3 divided by 8 is .375
14 divided by .375 is 37.3 repeating
and the fraction for that is 112/3

4 0
3 years ago
Read 2 more answers
Karen purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Karen used her card on
Sedbober [7]

30-24.08=5.92, 5.92/.16=37 minutes

3 0
3 years ago
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