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Volgvan
3 years ago
14

There are 120 students and 10 teachers at a small private school. To keep the same

Mathematics
1 answer:
Dafna11 [192]3 years ago
3 0

Answer:

20

Step-by-step explanation:

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Evaluate loook at the pic
Vikki [24]

Answer:

17

Step-by-step explanation:

So the 3 to the power 2 is 9, so 9x2 is 18 so then minus the 1 and it’s 17.

6 0
3 years ago
Read 2 more answers
A sequence is defined recursively using the formula f(n + 1) = –0.5 f(n) . If the first term of the sequence is 120, what is f(5
Svetllana [295]
7.5
f(1) = 120
f(2) = -60
f(3) = 30
f(4) = -15
f(5) = 7.5
6 0
3 years ago
Read 2 more answers
Intermediate algebra. please help to solve
BARSIC [14]
7x = -36+10x

X=12
You minus the 10 from 7 (7-10=-3) (-36/-3) gives you 12
6 0
3 years ago
Determine the first four terms of the sequence in which the nth term is a_n=(n+1)!/(n+2)!
Vilka [71]

Answer: Choice B) 1/3, 1/4, 1/5, 1/6

=============================================

Plug in n = 1 to find the first term

a_n = ( (n+1)! )/( (n+2)! )

a_1 = ( (1+1)! )/( (1+2)! )

a_1 = ( 2! )/( 3! )

a_1 = ( 2*1 )/( 3*2*1 )

a_1 = 2/6

a_1 = 1/3

The first term is 1/3. Optionally you can stop here because only choice B has 1/3 listed as the first term, so this must be the answer. However, I'm going to keep going to show how to find the three other terms. This will help confirm why choice B is the answer, and it will be handy for those times when you aren't given multiple choice answers.

------------

Plug in n = 2

a_n = ( (n+1)! )/( (n+2)! )

a_2 = ( (2+1)! )/( (2+2)! )

a_2 = ( 3! )/( 4! )

a_2 = ( 3*2*1 )/( 4*3*2*1 )

a_2 = 6/24

a_2 = 1/4

The second term is 1/4

------------

Plug in n = 3

a_n = ( (n+1)! )/( (n+2)! )

a_3 = ( (3+1)! )/( (3+2)! )

a_3 = ( 4! )/( 5! )

a_3 = ( 4*3*2*1 )/( 5*4*3*2*1 )

a_3 = 24/120

a_3 = 1/5

The third term is 1/5

------------

Plug in n = 4

a_n = ( (n+1)! )/( (n+2)! )

a_4 = ( (4+1)! )/( (4+2)! )

a_4 = ( 5! )/( 6! )

a_4 = ( 5*4*3*2*1 )/( 6*5*4*3*2*1 )

a_4 = 120/720

a_4 = 1/6

The fourth term is 1/6

------------

The first four terms are: 1/3, 1/4, 1/5, 1/6, so that confirms why choice B is the answer.

4 0
3 years ago
PLEASE HELP I WILL GIVE BRAINLY CROWN AND THIS QUESTION IS WORTH 62PTS
Thepotemich [5.8K]

Answer:

The y-intercept is 33ft.

Step-by-step explanation:

The ball is 33 feet away from the wall.

It will take the ball 11 seconds to touch the wall.

The slope is -3 feet. The ball is rolling towards the wall at 3 ft per second.

I hope this helps!

            ~Princess <3

3 0
3 years ago
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