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Marysya12 [62]
2 years ago
12

3 (without using trig table) evaluate It tan 60 x tan 30 divided by Tan 60 + tan 30

Mathematics
1 answer:
Marizza181 [45]2 years ago
8 0

Answer:

1.25332

Step-by-step explanation:

tan(30 times  tan(60  )  \div  \tan(60 \div + 30)

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If f(x) 3 x-1+ 4 and g(x) 4x-7 what is (f-g)(x)?
andre [41]
Hello : 
<span>If f(x)=  3 ^x-1+ 4 and g(x) = 4x-7
 (f-g)(x) = f(x) - g(x)= </span>3 ^x-1+ 4  - (4x - 7) 
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5 0
3 years ago
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A cylindrically shaped space station is rotating about the axis of the cylinder to create artificial gravity. The radius of the
erica [24]

Answer:

8%

Step-by-step explanation:

The maximum change happens when all 500 people moves form outer surface to the station center. When all of them are at the surface, the total moment of inertia is:

I = I_s + 500I_p = 3*10^9 + 500m_pr_p^2=3*10^9 + 500*70*82.5^2=3.24*10^9

When they are at the axis, the total moment of inertia is only the station's, which is 3*10^9

By the law of angular momentum conservation:

I_1\omega_1 = I_2\omega_2

\omega_2/\omega_1 = I_1/I_2 = \frac{3.24*10^9}{3*10^9} = 1.08

So the angular speed changes by 0.08 of itself, or 8%

5 0
4 years ago
Solve the inequality for b.<br><br>4b - 12 -5b &lt; 9b + 8​
ValentinkaMS [17]

Answer:

9b-12<9b+8

Step-by-step explanation:

b<20

8 0
3 years ago
Marguerite is building a box from strips of wood. She needs 78 pieces of wood that are each 29 cantimeters long. The wood comes
Anarel [89]
She will need 3.77 pieces of wood because 1 piece is 6m which is 600 cm and she need 78 pieces of 29 cm so 78*29=2262 then you divide the by 600 and that gives you 3.77 so she realy need 4 sorry i f i got it wrong. 


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7 0
3 years ago
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Ainat [17]

Answer:

Step-by-step explanation:

The easiest way to understand the answer is to consider two straight lines.

y = 3x + 6

and 2y = 6x + 12

When you graph these two lines, one will be on top of the other. That will give you an infinite number of solutions.

The answer does not depend on the two equations being straight lines. All that is required is that one graph sits on the other. So you could have a pair of  quadratics

y = x^2 + 3x + 10

2y = 2x^2 + 6x + 20

would also give you an infinite number of solutions.

4 0
4 years ago
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