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Pavlova-9 [17]
3 years ago
15

1/2 (3x−2)− 1/3 (x+1)=

Mathematics
1 answer:
EleoNora [17]3 years ago
4 0

Answer:

7 /6 x +  −4 /3

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The hour hand on a clock is 4 cm long, and the minute hand is 10 cm long. What is the exact distance between the tips of the han
Allushta [10]

Answer:

2 sqrt(19)

Step-by-step explanation:

We know that the angle between the two hands

360 /12 *2 = 60 degrees

We divide by 12 because there are 12 number and multiply by 2 because there are 2 number between 10 and 12

This is a triangle where we know 2 sides and the angle between them.

We can use the law of cosines to determine the third side

c^2 = a^2 + b^2 -2abcosC

Where C is the angle between sides a and b

a =4 and b = 10  C = 60  and we are looking for side c

c^2 = 4^2 + 10^2 -2*4*10 cos60

c^2 =16+100 - 80cos 60

c^2 = 76

Take the square root of each side

sqrt(c^2) = sqrt(76)

c = sqrt(76)

c =sqrt(4) sqrt(19)

c =2 sqrt(19)


4 0
2 years ago
Circle all of the equations
Tanzania [10]

Answer:

B and C

Step-by-step explanation:

Just not linear lol

3 0
3 years ago
A line that includes the points ( - 4, - 3) and ( - 3,S) has a slope of 3. What is the value of s?
Illusion [34]

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-4, -3) and (-3, s) and the slope m = 3. Substitute:


6 0
3 years ago
NO LINKS!! Please help me with this problem​
Anastaziya [24]

Answer:

  y²/324 -x²/36 = 1

Step-by-step explanation:

Where (0, ±b) are the ends of the transverse axis and y = ±(b/a)x describes the asymptotes, the equation of the hyperbola can be written as ...

  y²/b² -x²/a² = 1

<h3>Application</h3>

Here, we have transverse axis endpoints of (0, ±18) and asymptotes of y = ±3x, so we can conclude ...

  b = 18

  b/a = 3   ⇒   a = 18/3 = 6

The equation of the hyperbola in standard form is ...

  y²/324 -x²/36 = 1

7 0
2 years ago
Subtract and simplify.
Anestetic [448]
(y^2-7y-5)-(-3y^2+3y-4)
=y^2-7y-5+3y^2-3y+4
=3y^2+y^2-7y-3y-5+4
=4y^2-10y-1

In short, the answer would be 4y^2-10y-1 (Option D).

Hope this helps !

Photon
6 0
3 years ago
Read 2 more answers
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