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Debora [2.8K]
2 years ago
5

What is sinK?a. 12/13b. 13/12c. 5/13d. 5/12

Mathematics
2 answers:
ki77a [65]2 years ago
7 0

Answer:

a. 12/13

Step-by-step explanation:

Sin is opposite over hypotenuse.

Opposite side of K is 12 and your hypotenuse is 13

miv72 [106K]2 years ago
3 0

Answer:

\sf sin(K)= \dfrac{12}{13}

Explanation:

\hookrightarrow \sf sin(x)= \dfrac{opposite}{hypotensue}

<u>using the formula:</u>

\sf sin(K)= \dfrac{12}{13}

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The percentage of water in an unknown hydrate was determined by heating the sample and driving the water off the sample. Two ind
Bas_tet [7]

Answer:

It should be reported as 20.648%

Step-by-step explanation:

Since we have 2 different observed values hence we shall use an average of the 2 values to report the result

Thus value is \frac{19.564+21.731}{2}=20.6475%

As we can see that the least count of our observations is upto 3 decimal places hence we have to report a result upto only 3 decimal places thus we need to round off the fourth decimal place thus the digit shall be increased by 1 since we have to drop off 5 and the digit before 5 is 7 which is an odd number.

Thus the result shall be 20.648%

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3 years ago
Given that a × 70 = b<br> work out the value of<br> Your final line should say, 3b/a =...
alukav5142 [94]

a/q b/a=70 so ans will be 210

8 0
3 years ago
Graph y&lt; 1/3 c + 1/2
castortr0y [4]

<h3>The Graph you need above </h3>

<h3>Step-by-step explaination : </h3>

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y<x/3+1/2

<h3>Use the slope-intercept form to find the slope and y-intercept.</h3><h3 />

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y-intercept: 1/2

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1 year ago
Write the equation in slope intercept form. Then, match the equation with the correct graph.
Natasha_Volkova [10]

Answer:

Graph A:  y = (1/2)x - 2

Step-by-step explanation:

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2 years ago
What are RQS and TQS?
yaroslaw [1]

Answer:

m∠RQS = 72°

m∠TQS = 83°

Step-by-step explanation:

m∠RQS +m ∠TQS = m∠RQT

The two angles combine to make a larger angle

So

m∠RQS = (4x - 20)

m∠TQS = (3x + 14)

(4x - 20) + (3x + 14) = 155

Group the Xs and the constants

4x + 3x - 20 + 14 = 155

Combine like terms

7x - 6 = 155

Add 6 to both sides

7x = 161

Divide by 7 on both sides

x = 23

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Checking:

72 + 83 = 155

8 0
3 years ago
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