2 years ago

What is the answer for 17/48 - 5/7

Mathematics

1 answer:

inysia [295]2 years ago

7 0

Answer:

-121/336

Step-by-step explanation:

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PLEASE HELP! 20 POINTS!! PIC ATTACHED :)

leonid [27]

From the figure, we immediately have

cos(θ) = 8/17

sin(θ) = 15/17

By definition of tangent,

tan(2θ) = sin(2θ)/cos(2θ)

Recall the double angle identities:

sin(2θ) = 2 sin(θ) cos(θ)

cos(2θ) = cos²(θ) - sin²(θ) = 2 cos²(θ) - 1

Then

tan(2θ) = (2 sin(θ) cos(θ)) / (2 cos²(θ) - 1)

tan(2θ) = (2 × 15/17 × 8/17) / (2 × (8/17)² - 1)

tan(2θ) = -240/161

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1 year ago

Which of the following lines has a negative slope?

Furkat [3]

Answer:

The second option, or the one attached.

Step-by-step explanation:

This line has a negative slope because the line is going "down the stairs" from the top-left to the bottom-right.

6 0

2 years ago

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Nutka1998 [239]

Answer:

Step-by-step explanation:

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2 years ago

Algebra graphing question

lozanna [386]

Answer:

Point (-2,1) Doesn't fall on the line.

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2 years ago

What is the volume of the shape?

Sergeeva-Olga [200]

The volume of the triangular prism = $V = (base-area)*height$

Thus the volume is $\\V = (\frac{1}{2} *3*4) * 7 = 6 * 7 = 42$ .

Thus the volume is 42 cubic km.

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2 years ago