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3 years ago

Imari went on a hike and recorded the number of each type of bird he saw. The circle graph shows the results of his count.

Mathematics

2 answers:

FrozenT [24]3 years ago

7 0

Step-by-step explanation:

step 1. 42 represents 35% of the birds.

step 2. 42/.35 = all of the birds counted.

step 3. 42/.35 = 120.

step 4. There are 120 total.

USPshnik [31]3 years ago

6 0

Answer:

120

Step-by-step explanation:

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ivolga24 [154]

Answer:

$a^{3y} + 1 = (a^{y}+1 )^{3} - 3a^y(a^{y}+1)\\\\$

Step-by-step explanation:

We are to factorize the expression $a^{3y} + 1$ completely. To do this, we will apply the expression below;

The expression can be rewritten as $a^{3y} + 1^{3}$

To factorize the expression, we need to first factorize $(a^{y}+1 )^{3}$ first

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The we will make $a^{3y} + 1^{3}$ the subject of the formula as shown;

$(a^y)^{3} + 1 = (a^{y}+1 )^{3} - (3(a^y)^{2}+3a^y)\\(a^y)^{3} + 1^{3} = (a^{y}+1 )^{3} - (3(a^y)^{2}+3a^y)\\\\$

$(a^y)^{3} + 1 = (a^{y}+1 )^{3} - (3(a^y)^{2}+3a^y)\\\\$

$a^{3y} + 1 = (a^{y}+1 )^{3} - (3(a^y)^{2}+3a^y)\\\\$

$a^{3y} + 1 = (a^{y}+1 )^{3} - 3a^y(a^{y}+1)\\\\$

This last result gives the expansion of the expression

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Step-by-step explanation:

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After that, cross multiple and divide.

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