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galina1969 [7]
2 years ago
8

Solve for x in the triangle round your answer to the nearest tenth Pls help ASAP!!

Mathematics
1 answer:
lbvjy [14]2 years ago
4 0

Answer:

x = 3.9

Step-by-step explanation:

cos = adj/hyp

cos67 = x/ 10

x = 10 * cos67

use calculator

x = 3.9

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Answer:16,625,169,9

Step-by-step explanation:

Find the square root of the number and if it’s even and there’s no decimal than it’s a perfect square

4 0
2 years ago
Solve (−7) ⋅ (−4). Please hurry :D<br><br> -28<br> -11<br> 28<br> 11
sweet-ann [11.9K]

Answer:

28

Step-by-step explanation:

- (7) \times ( - 4) \\  - ( - 28) \\  -  \times  -   =  +  \\  = 28

5 0
2 years ago
Find the two integers whose sum is -4 and product is -45​
Ipatiy [6.2K]

Answer:

(+5) and (-9)

Step-by-step explanation:

(+5) + (-9) = -4

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3 years ago
A spinning giant star of initial radius R1 and angular speed ω1 suddenly collapses radially inward reaching a new radius R2 = 0.
tiny-mole [99]

Answer:

K1/K2=4

Step-by-step explanation:

The kinetic energy of a rotating sphere is given by:

K=\frac{I*\omega^{2} }{2}

The moment of inertia of a solid sphere is given by

I=\frac{2MR^{2} }{5}

The initial kinetic energy is therefore

K_1=\frac{2MR^{2}*\omega^{2} }{10}

K_1=\frac{MR_1^{2}*\omega^{2} }{5}

The final kinetic energy is given by

K_2=\frac{MR_2^{2}*\omega^{2} }{5}

Therefore the relation K1/K2 if R2 = 0.5R1

\frac{K_1}{K_2} =\frac{5M(R_1)^{2}*\omega^{2} }{5*M(0.5R_1)^{2} \omega^{2}}

The text says nothing about the final angular velocity just the collapse of the collapse of the radius

\frac{K_1}{K_2} =\frac{1 }{(0.5)^{2} }=4

3 0
2 years ago
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Kay [80]

Answer: x= 5

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6 0
2 years ago
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