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Effectus [21]
2 years ago
12

BRAINLY I NEED HELP ASAPPPP!!

Mathematics
1 answer:
Karo-lina-s [1.5K]2 years ago
8 0

Answer:

b

Step-by-step explanation:

8

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Salina, Tamara, and Uma are working on their homework together. Salina tells her friends that she got θ=52∘θ=52∘ for the inverse
svlad2 [7]

Answer:

The values reported by Uma, Salina, and Tamara are all possible values for inverse cosine

Step-by-step explanation:

Solution:-

- The solution to the inverse "cosine" problem would have a general form:

                                    θ = cos^-1 ( a )

Where,  a: Any arbitrary constant, - 1 < a < 1

- The value of θ = 52° was reported by Salina suggests that the answer lies in the first quadrant of a cartesian plane where ( sin (θ) , cos (θ) , tan (θ) ) have positive values for "a".

Hence,                            0 < a < 1 , θ = 52°

- The value of θ = 128° was reported by Tamara suggests that the answer lies in the second quadrant of a cartesian plane where ( sin (θ) ) have positive values for "a" and (cos (θ) , tan (θ) have negative values for "a". So for cos (128):

Hence,                           -1 < a < 0 , θ = 128°

- The value of θ = 308° was reported by Uma suggests that the answer lies in the fourth quadrant of a cartesian plane where ( cos (θ) ) have positive values for "a" and (sin (θ) , tan (θ) have negative values for "a". So for cos (308):

Hence,                           0 < a < 1 , θ = 308°

- The angle θ reported by Uma and Salina are similar solution because of property law of complementary angles:

                                     cos (θ) = cos ( 360 - θ )

Where, θ = 52°,            cos (52°) = cos( 308°)  .. Uma and Salina conform

However,                      cos ( 180 - θ ) = - cos (θ)  

                                     cos(128) = - cos ( 52 ) .... Uma and Tamara conform.

5 0
3 years ago
Can a triangle be drawn with the following side lengths? Why or why not?
Ghella [55]
Yes, because it still have 3 sides.
4 0
2 years ago
A computer supplies store is having a store wide sale this weekend. And inkjet printer that normally sells for $179 is on sale f
klasskru [66]
Hey again!

i don't know if i am doing this correctly but i will give it a go

179 - 143.20 = 35.8

179 / 35.8 = 5

so this would mean from 179 to 143.20 their is a 5% discount

Hope This Helps!
8 0
3 years ago
1. Brandon has $12. He will eam $8 for every
8_murik_8 [283]

Answer:52-12=$40

1/8*40 = 5 hours.

Step-by-step explanation:

6 0
3 years ago
10 cm
kirza4 [7]
Um can we see the cylinder
7 0
3 years ago
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