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Brrunno [24]
4 years ago
12

What is the best mechanical advantage that you can obtain for any door that you simply push open?

Mathematics
1 answer:
Komok [63]4 years ago
8 0

Answer:

  2

Step-by-step explanation:

The best mechanical advantage you can get is obtained by pushing the door at its edge. If the door's center of mass is halfway from the hinge to the edge, then the advantage you get (in terms of force reduction) is ...

  1/(1/2) = 2

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Given a geometric sequence in the table below, create the explicit formula and list any restrictions to the domain.
Makovka662 [10]

Given:

The geometric sequence is:

n              a_n

1                        -4

2                      20

3                     -100

To find:

The explicit formula and list any restrictions to the domain.

Solution:

The explicit formula of a geometric sequence is:

a_n=ar^{n-1}            ...(i)

Where, a is the first term, r is the common ratio and n\geq 1.

In the given sequence the first term is -4 and the second term is 20, so the common ratio is:

r=\dfrac{a_2}{a_1}

r=\dfrac{20}{-4}

r=-5

Putting a=-4,r=-5 in (i), we get

a_n=-4(-5)^{n-1} where n\geq 1

Therefore, the correct option is B.

5 0
3 years ago
Question 2 A B C D E F G H
sleet_krkn [62]

Step-by-step explanation:

a. 2(y-8)

= 2y-16

b. 3(x-5)

= 3x-15

c.6(b-4)

= 6b-32

d.7(d-2)

= 7d-14

e.5(2-y)

= 10-5y

f.3(4-t)

= 12-3t

g.5(b-a)

=5b-5a

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= 14-7h

4 0
3 years ago
PLEASE HELP ITS TIMED
Hunter-Best [27]

Answer:

Step-by-step explanation:

The chinese man ate the dog and cat meow and roof roof

5 0
3 years ago
Find the slope of the line that passes through (1,5) and (10, 10).
Oliga [24]

Answer:

\frac{5}{9}

Step-by-step explanation:

The formula for the slope with two points given would be

\frac{y_2-y_1}{x_2-x_1}

Substitute

\frac{10-5}{10-1} =\frac{5}{9}

5 0
3 years ago
Step by step factoring: x^2-11xy+30y^2
oee [108]
Do you need it explained or just the answer

5 0
4 years ago
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