3 years ago

If I said 15402,How It could be in 2 significant?

Mathematics

2 answers:

nikdorinn [45]3 years ago

8 0

Answer:

15000

Step-by-step explanation:

Kipish [7]3 years ago

5 0

Answer:

A. 15000

Step-by-step explanation:

You take the first two number and check if the 3rd is 5 and above or below 5.

If it is below 5, it is around to 0 and if it is 5 and above it is round to the 2nd number as a value of 1

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katen-ka-za [31]

Answer:

70/3

Step-by-step explanation:

Multiply: 23*3
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Add: 69+1
69+1=70
70/3

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3 years ago

X + y = 2

liraira [26]

Answer:

$D. (3,-1)$

Step-by-step explanation:

$x + y = 2 \: \: \: \: \: \: ..(1) \\ 2x - y = 7 \: \: \: \: ..(2)$

from equation 1 we get,

$x = 2 - y$

now,

$put \: \: \: \: x = 2 - y \: \: \: in \: (2)$

we get,

$2(2 - y) - y = 7 \\ 4 - 2y - y = 7 \\ 4 - 3y = 7 \\ - 3y = 7 - 4 \\ - 3y = 3 \\ \\ y = \frac{3}{( - 3)} \\ \\ y = - 1$

now,

$put \: \: \: \: y = - 1 \: \: \: \: in \: (1)$

we get,

$x + ( - 1) = 2 \\ x - 1 = 2 \\ x = 2 + 1 \\ x = 3$

hence, the value of x = 3 and y = (-1)

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3 years ago