Question

7,3,-1,-5,____,_____,____
-2,-4,-6,-8,____,_____,____
15,10,5,0,_____,____,______
-11,-8,-5,-2,______,______,_____​

Answer 1

Step-by-step explanation:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.24-Oct-2019

Answer 2

Hey there! :)

First of all, we have to observe every pattern.

• (i) 7, 3, -1, -5, __, __, __

After observing the pattern, we get :

7 - 3 = 4, 3 - (-1) = 4, (-1) - (-5) = 4

Now,

(-5) - 4 = -9, (-9) - 4 = -13, (-13) - 4 = -17.

$\purple{\bf{Answer \: \leadsto \:7, 3, -1, -5, \underline{-9} , \underline{-13} , \underline{-17} }}$

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• (ii) -2, -4, -6, -8, __, __, __

After observing the pattern, we get :

(-2) - (-4) = 2, (-4) - (-6) = 2, (-6) - (-8) = 2

Now,

(-8) - 2 = -10, (-10) - 2 = -12, (-12) - 2 = -14.

$\pink{\bf{Answer \: \twoheadrightarrow \: -2, -4, -6, -8, \underline{-10}, \underline{-12}, \underline{-14} }}$

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• (iii) 15, 10, 5, 0, __, __, __

After observing the pattern, we get :

15 - 10 = 5, 10 - 5 = 5, 5 - 0 = 5

Now,

0 - 5 = -5, (-5) - 5 = -10, (-10) - 5 = -15.

$\purple{\bf{Answer \: \mapsto \: 15, 10, 5, 0, \underline{-5}, \underline{-10}, \underline{-15} }}$

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• (iv) -11, -8, -5, -2, __, __, __

After observing the pattern, we get :

(-11) - (-8) = -3, (-8) - (-5) = -3, (-5) - (-2) = -3

Now,

(-2) - (-3) = 1, 1 - (-3) = 4, 4 - (-3) = 7.

$\pink{\bf{Answer \: \twoheadrightarrow \: -11, -8, -5, -2, \underline{1}, \underline{4}, \underline{7} }}$

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