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Vinil7 [7]
2 years ago
9

Although 330° is a special angle on the unit circle, Amar wanted to determine its coordinates using the sum and difference formu

las.
Part A: Determine cos 330° using the cosine sum identity. Be sure to include all necessary work.

Part B: Determine sin 330° using the sine difference identity. Be sure to include all necessary work.
Mathematics
1 answer:
Dvinal [7]2 years ago
8 0

Answer:

Here you go.Hope this help!!

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What is the value of 9(n+2)−5n for n=14?<br> 3<br> 9<br> 10<br> 19
Murrr4er [49]
If you want to know the value of a  function, you need to substitute the variable (here n) for the value:

so in the function

9(n+2)−5n

we substitute n with 14:

<span>9(14+2)−5*14

first calculate the inside of the bracket:

</span>
<span>9*16−5*14

9 times 16 is 144

144-5*14

5*14 is 70, so we have

144-70=74

so the answer should actually be 74!

Perhaps you mistyped the questions? can you check it again, please?

</span>
5 0
3 years ago
Find equation of a line through 5 -3 that is parallel to y=1/2x+3
xxTIMURxx [149]

Answer:

The equation of a line through (5 -3) that is parallel to y = 1/2 x+3 is

y = - 2 x  + 7

Step-by-step explanation:

Let us assume the slope of the line whose equation we need to find is m 1.

The line parallel to the needed line  is:   y=1/2x+3

Comparing it with the general form: y = m x + C

we get m 2 = 1/2

Now, as Line 1 is Perpendicular to Line 2.

⇒ m 1 x m 2  = -1

⇒ m 1 x ( 1/2)  = -1

⇒ m 1  = - 2

Also, the point son the line 1 is given as: (x,y)  = (5,-3)

Put the value of point and Slope in y = m x + C to find the value of Y- INTERCEPT.

we get: -3 = (-2) (5) +  C

or, C = -3 + 10 = 7

⇒ C = 7

The general line equation is given as:  y = m x + C

Substituting  the values of C and m, we get:

y = - 2 x  + 7

Hence, the equation of a line through 5 -3 that is parallel to y = 1/2 x+3 is

y = - 2 x  + 7

8 0
3 years ago
Can someone help me?
nika2105 [10]
The answer would be B because range is the highest number take away the lowest number
8 0
3 years ago
Write the fracción which corresponds to the part no shaded
Andru [333]

Answer:

1/6

Step-by-step explanation:

There are 6 large squares here, all of which have been shaded but for one.

Thus, the desired fraction is 1/6.

8 0
2 years ago
A die was rolled 75 times with the following resulted: It landed on one-18 times, two-10 times, four-11 times, five-14 times, an
RoseWind [281]

Answer: 15 Times

Step-by-step explanation: It's 15 Times because if you add all of the other rolled times together you'll get 60 and 75-60=15.

7 0
2 years ago
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