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pantera1 [17]
3 years ago
8

Write 90:27:90 in its simplest form

Mathematics
2 answers:
posledela3 years ago
8 0

Answer:

The simplest form of 2790 is 310.

zlopas [31]3 years ago
5 0

Answer:

I think its 3 and 1/3

Step-by-step explanation:

you welcome

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Two best friends are in a small class together which has 9 students in attendance. if the students are randomly assigned into tw
castortr0y [4]
The probability would be 1:9
6 0
4 years ago
In a group of 120 pupils , 80 can play drums and 25 play piano . How many pupils can play both instruments if there are 3 pupils
soldier1979 [14.2K]

Answer:

  • 12 pupils

Step-by-step explanation:

<u>Number of pupils can play either instrument:</u>

  • 120 - 3 = 117

<u>Number of those can play both:</u>

  • 117 - (80 + 25) = 12
3 0
3 years ago
PLEASE HELP ME I BEG
Kay [80]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• 1 + cot²x = csc²x

Consider the left side

csc^{4} x - cot^{4} x

Factorise as a difference of squares

= (csc²x - cot²x)(csc²x + cot²x)

= (1 + cot²x - cot²x)(csc²x + cot²x)

= csc²x + cot²x

= csc²x + csc²x - 1

= 2csc²x - 1 = right side ⇒ verified




8 0
4 years ago
HELP FAST FAST FAST
Rus_ich [418]

Answer:

h=3in  

Step-by-step explanation:

A=a+b

2h

Solving forh

h=2A

a+b=2·13.5

3+6=3in

3 0
3 years ago
A bike store rents bikes for $9 an hour in addition to a helmet rental fee of $15. If
wel

Answer:

4 hours

Step-by-step explanation:

First we need to subtract the one pay fee (the helmet rental fee, $15)

So 51 - 15 = 36

Then we need to divide 36 by the amount of money it costs for each hours to find how many hours he rented the bike

So 39/9 = 4

3 0
2 years ago
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