Step-by-step explanation:
<u>John</u>
1hour=x
6x=150
X=150÷6=25
John earns 25 dollars per hour
<u>Peter</u>
<u>1hour=x </u>
<u>8</u><u>x=</u><u>160</u>
<u>X=</u><u>160</u><u>÷</u><u>8</u><u>=</u><u>20</u><u> </u>
- Peter earns less than <u>John</u><u> </u>
Characteristics of P wavesmove like earthworms, compress and expand, push and pull; fastest, travels through solids, and liquids, primary waves.characteristics S wavesmoves like Lochness monster, side to side, shear waves;, travels through solids only, slower than P waves.
The answer is: " 2 {two}" .
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There are "2 {two}" factors in the expression:
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→ " 8(x + 4)(y + 4)(z² + 4z + 7) " ;
that have "exactly two terms". The factors are:
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" (x + 4) " ; and: " (y + 4) " .
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Note:
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Among the 4 (four) factors; the following 2 (TWO) factors have exactly 2 (two) terms:
" (x + 4)" ; → The 2 (two) terms are "x" and "4" ; AND:
" (y + 4)" ; → The 2 (two) terms are "y" and "4" .
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Explanation:
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We are given the expression:
" 8(x + 4)(y + 4)(z² + 4z + 7) " ;
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There are 4 (four) factors in this expression; which are:
1) " 8 " ; 2) "(x + 4)" ; 3) "(y + 4)" ; and: 4) "(z² + 4z + 7)" .
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Among the 4 (four) factors; the following factors have exactly 2 (two) terms:
" (x + 4)" ; → The 2 (two) terms are "x" and "4" ; AND:
" (y + 4)" ; → The 2 (two) terms are "y" and "4" .
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<u>Note</u>: Let us consider the remaining 2 (two) factors in the given expression:
" 8(x + 4)(y + 4)(z² + 4z + 7) "
Consider the factor: " 8 " ; → This factor has only one term— " 8 " ;
→ { NOT "2 (two) terms" } ; so we can rule out this option.
The last remaining factor is: " (z² + 4z + 7) " .
→ This factor has "3 (three) terms" ; which are:
1) " z² " ; 2) "4z" ; <u><em>and</em></u>: 3) " 7 " ;
→ { NOT "2 (two) terms" } ; so we can rule out this option.
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