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liubo4ka [24]
3 years ago
9

Find the value of x of the circle, and show the work of the equation:

Mathematics
1 answer:
slavikrds [6]3 years ago
8 0
AOD=180 so COD=48
Since point C and D are equidistance to center point(O) OD and OC are congruent.
That also means OCD=ODC.
180-48=OCD+ODC
ODC=OCD
x= 66
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how can you use the sine and cosine ratios and their inverses in calculations involving right triangles
Marysya12 [62]

Answer:

Step-by-step explanation:

I will show you by example.  For the sin ratio, we have that the sin of the reference angle is equal to the side opposite the angle over the hypotenuse of the right triangle.  We use this example for finding the ratio, knowing the angle:

sin(60)=.866025 found on your calculator.  Because this is a special angle in a right triangle, we can also say, by looking at a 60 degree reference angle that the side across from the angle measures square root of 3, and the hypotenuse measures 2.  So in terms of a radical,

sin(60)=\frac{\sqrt{3} }{2}

If we don't know the angle, we use the 2nd button on our calculator to find it.  For example, if our problem looked like this:

sin\theta=\frac{1}{2},

we are asked what angle has a sin ratio of 1/2.  We find this angle by pressing the 2nd button on our calculator, then the sin button and you will see this on your screen:

sin^{-1}(

Enter either a .5 or a 1/2 after that open parenthesis and hit enter and you'll get the angle measure.  That's how you use the inverses to solve for missing angles.

3 0
4 years ago
When positive integer x is divided by positive integer y, the remainder is 9. If = 96.12, what is the value of y ? 96 75 48 25 1
NeTakaya

Y= 75.

Lets try to solve it,

When positive integer x is divided by positive integer y, the remainder is 9

=> x=qy+9;

=> x/y=96.12

=>x=96y+0.12y (so q above equals to 96);

=>0.12y=9

=> y=75.

Hence the value of y would be 75.

Learn more about Positive Integer on:

brainly.com/question/1367050

#SPJ4

4 0
2 years ago
What is the absolute value of a number ?
stepladder [879]

Answer:

Step-by-step explanation:

The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign. For example, the absolute value of 5 is 5, and the absolute value of −5 is also 5. The absolute value of a number may be thought of as its distance from zero along real number line.

7 0
2 years ago
Read 2 more answers
Leah knit a scarf that is 130 centimetres ( cm ) long. Theo knit a scarf that is 4/3 as long Leah's scarf. How long is Theo's sc
harkovskaia [24]

Answer:

173.33333333333...

Step-by-step explanation:

4/3=1.3333333...

So 130×1.3333333... is 173.3333333...

6 0
3 years ago
Scientific Notation is made up of two number parts. The second part is a power of base 10.
Aneli [31]

Answer:

Step-by-step explanation:

True

7 0
3 years ago
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