3 years ago

How do you do 7-12 cause my math teacher sucks at explaining

Mathematics

1 answer:

Svetach [21]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

imagine a numberline like

-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2- 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13

see how its negative (-) and positive numbers

look at the number 7 and count back 12 to the left.

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3 years ago

Which expression is equivalent to (4g3h2k4)3

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Answer:

d) $8g^{6}h^{4} k^{12} - (h^{25} k^{15} )$

$\frac{(4g^{3} h^{2}k^{4} )^{3} }{8g^{3}h^{2} } - (h^{5} k^{3} )^{5}$ $= 8g^{6}h^{4} k^{12} - (h^{25} k^{15} )$

Step-by-step explanation:

<u><em>Explanation</em></u>

Given expression

= $\frac{(4g^{3} h^{2}k^{4} )^{3} }{8g^{3}h^{2} } - (h^{5} k^{3} )^{5}$

By using

(ab)ⁿ = aⁿbⁿ

$\frac{a^{m} }{a^{n} } = a^{m-n}$

= $\frac{(4)^{3} g^{9} h^{6}k^{12} ) }{8g^{3}h^{2} } - (h^{5} k^{3} )^{5}$

After simplification , we get

$= 8g^{9}g^{-3} h^{6} h^{-2} k^{12} - (h^{5} k^{3} )^{5}$

$= 8g^{9-3}h^{6-2} k^{12} - (h^{5} k^{3} )^{5}$

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2 years ago