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Vinil7 [7]
3 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]3 years ago
8 0

Answer:

Here you go.Hope this help!!

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What’s the measure of the missing angles?
Ymorist [56]

Answer:

Angle 1 equals 90 degrees. Angle 2 equals 38 degrees.

Step-by-step explanation:

Angle 1 is at the cross of two perpendicular lines, making it 90 degrees. Angle 2 can be found by making the two equal side lengths and the middle line into one triangle. This means that two of the angles are 52 degrees. This leaves 76 degrees to be split in the triangle. The middle line cuts the angle in half, making it 38 degrees

3 0
3 years ago
Jose wants to build a rectangular kennel for his dog. His dad will let him use a spot in the corner of the yard that is 12 feet
Varvara68 [4.7K]
The answer is 42 ft 4 in

The perimeter of a rectangle with length l and width w is:
P = 2l + 2w

l = 12 ft 3 in
w = 8 ft 11 in

1 ft = 12 in
l = 12 * 12 in + 3 in = 144 in + 3 in = 147 in
w = 8 * 12 in + 11 in = 96 in + 11 in = 107 in

P = 2 * 147 + 2 * 107 = 294 + 214 = 508 in
P = 508 in = 504 in + 4 in = 42 * 12 in + 4 in = 42 ft 4 in
7 0
4 years ago
Least to greatest in a number line -7,3,0.5,-2 ½,2.4?<br><br><br><br>​
Charra [1.4K]

Answer:

-7,-2, 0.5, 2, 3, 4

\frac{1}{2}

3 0
3 years ago
Read 2 more answers
The nth term of a sequence is 8 - n. a)work out the first three terms of the sequence b) work out the value of the first negativ
mojhsa [17]

Answer:

see explanation

Step-by-step explanation:

To calculate the first 3 terms substitute n = 1, 2, 3 into the n th term formula

(a)

8 - 1 = 7

8 - 2 = 6

8 - 3 = 5

The first 3 terms are 7, 6, 5

(b)

The first negative term wii occur when n > 8, that is n = 9, thus

8 - 9 = - 1 ← first negative term

7 0
3 years ago
Find the percent of each number <br> 30% of 80
Wewaii [24]
30% of 80
30% = 0.3
0.3 • 80 is the same as 30% of 80.
0.3 • 80 = 24

30% of 80 is 24.

Hope this helps!
3 0
4 years ago
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