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2 years ago

Find the reciprocal of the following: a.) 2/18 b.)7/8 c.) 30/36

Mathematics

1 answer:

matrenka [14]2 years ago

7 0

Answer:

a) 9

b) 8/7

c) 36/30

Step-by-step explanation:

Reciprocal is when the denominator and numerator "flip."

comment if you have any more questions :)

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Please help!!!!!!!!!

victus00 [196]

Answer:

None of the above

Explanation:

To find the type of lines they create, first find the slope of the equations.(Change form to y intercept)

4x-2y=-5

-2y=-4x-5

y=2x+(5/2)

Slope=2

-2x+3y=-3

3y=2x-3

y=(2/3)x-1

Slope=2/3

So, one has slope=2 and the other has slope=2/3. They’re not parallel because slopes are not the same. They’re not perpendicular because the slopes are not opposites. They’re not equal because their equations are not the same. So, none of the above.

6 0

3 years ago

What proportion of the first 10,000 natural numbers contain a 3

Sergeeva-Olga [200]

In the first 10 -> 10 - 9 = 1 (contain a 3).
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n -> 10^n - 9^n (contain a 3).

$

So for 10^4 -> 10^4 - 9^4 = 10.000 - 6.561 = 3.439 
$

The answer is 3.439 numbers contain a 3 in the first 10.000

3 0

3 years ago

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Please help me anyone

kotykmax [81]

Answer:

Quelles caractéristiques ces mots ont-ils en commun ? Cliquez sur tout ce qui s'applique.

$\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$

Step-by-step explanation:

8 0

2 years ago

A teacher writes two equations as shown.

yaroslaw [1]

A) J = (3/8)*(5/15 -6/15) = (3/8)*(-1/15) = (1/8)*(-1/5) = -1/40
.. K = (3/4)*(4/6 -5/6) = (3/4)*(-1/6) = (1/4)*(-1/2) = -1/8

B) (-1/40) +(-1/8) = -1/40 -5/40 = -6/40 = -3/20

C) The opposite of -3/20 is 3/20

D) Real world: I'm answering Brainly.com questions and one asks the opposite of -3/20.

5 0

3 years ago

What does x = help please

Allisa [31]

Answer:

x= 90/4*2x

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers