Answer:
Step-by-step explanation:
1) Remove parentheses.
2) Use this rule: a ÷ b/c = a × c/b.
3) Use this rule: a/b × c/d = ac/bd.
4) Simplify 4 × 6 to 24.
5) Simplify 5 × -7 to -35.
6) Move the negative sing to the left.
7) Remove parentheses.
<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>24</u><u>/</u><u>35</u>.
Answer:
24km
Step-by-step explanation:
16/4 is 4 so you multiply that by 6 and you get 24. the equation is (16/4)*6
Answer:
Multiply by two. Formula could be x * 2
Step-by-step explanation:
9 is the answer for that problem
Answer: 6i) 6a² - 2ab
6ii) -2b³
6iii) b³ + 7b² - 49b
<u>Step-by-step explanation:</u>
6i) (a + b)(5a - 3b) + (a - 3b)(a - b)
= 5a² - 3ab + 5ab - 3b² + a² - ab - 3ab + 3b²
= 5a² + 2ab - 3b² + a² - 4ab + 3b²
= 6a² - 2ab
6ii) (a - b)(a² + b² + ab) - (a + b)(a² + b² - ab)
= a³ + ab² + a²b - ab² - a²b - b³ - (a³ + ab² - a²b -ab² + a²b + b³)
= a³ - b³ - (a³ + b³)
= a³ - b³ - a³ - b³
= -2b³
6iii) (b² - 49)(b + 7) + 343
= b³ + 7b² - 49b - 343 + 343
= b³ + 7b² - 49b
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Please post #7 on a different question.
