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iVinArrow [24]
3 years ago
6

Find exact value of sin 7pi/4

Mathematics
2 answers:
svetoff [14.1K]3 years ago
8 0
Is there a photo of a triangle ?
ehidna [41]3 years ago
3 0
sin( \frac{7 \pi }{4} )= -0.7071067812
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Plz explain step by step ​
kirill115 [55]

Step-by-step explanation:

a=20⁰ vertically opposite angles are equal

b=160⁰ sum of angles on a straight line add up to 180⁰

(180⁰-20⁰=60⁰)

c=125⁰ sum of angles on a straight line add up to 180⁰

(180⁰-35⁰-20⁰=125⁰)

8 0
2 years ago
Parallel to y=2/3x+6 through (-3, 6)
Lana71 [14]

Answer:

y = (2/3)x + 8

Step-by-step explanation:

Parallel lines have the same slope. In the given equation, the slope is 2/3 so the slope of the parallel line will also be 2/3.

y = (2/3)x + ?

Plug in (-3, 6) for (x, y) in the equation.

6 = (2/3)(-3) + ?

6 = -2 + ?

? = 8

Final equation: y = (2/3)x + 8

7 0
3 years ago
What decimal does this model represent? Explain.<br> Online Pearson Realize com
svetlana [45]

Answer:

0.73

Step-by-step explanation:

There are 100 total squares, and 73 are highlighted

73/100 = 0.73

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

8 0
2 years ago
10 POINTS! PLEASE HELP!! The illustration shows a compact disc tray that holds five CDs. The radius of each compact disc is 9 cm
MariettaO [177]

We can see that there are 5 CDs, each of radius 9 cm

<u>Area occupied by 1 disc:</u>

Area of a circle = πr²

Area of disc = π(9)²

Area of disc = 3.14 * 81 = 254 cm²

<u>Area occupied by 5 discs:</u>

Area occupied by 5 discs = Area occupied by 1 disc * 5

Area occupied by 5 discs = 254 * 5

Area occupied by 5 discs = 1270 cm²

3 0
2 years ago
Does the graph represent a function?
velikii [3]
I believe function but I’m also not super good in math
8 0
3 years ago
Read 2 more answers
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