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dmitriy555 [2]
3 years ago
5

What the answer for 12(x+3)=4(2x+9)+4x

Mathematics
1 answer:
IceJOKER [234]3 years ago
4 0
12(x+3)=4(2x+9)+4x
12x+36=8x+36+4x
12x+36=12x+36
12x=12x
0=0
true for all x
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Simplify (4x+5y)(2x-3y)+3xy<br><br> Help
amid [387]

Answer:

8x² - 15y² + xy

Step-by-step explanation:

(4x + 5y) (2x - 3y) + 3xy

multiplying the terms in brackets

(4x) (2x - 3y) + (5y) (2x - 3y) + 3 xy

multiplying with each terms inside the bracket

(4x)(2x) - (4x) (3y) + (5y) (2x) - (5y) (3y) + 3xy

doing the product each of the pair of terms

8x² - 12xy + 10xy - 15y² + 3xy

taking the sum of terms with coefficient "xy"

8x² - 15y² -2xy + 3xy

8x² - 15y² + xy


3 0
3 years ago
What is the exact value of sin(285°)
Ludmilka [50]
Your answer is
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4 0
3 years ago
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A mountain climber starts 52 feet above sea level and climbs to 343 feet.
gulaghasi [49]

Answer:

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3 0
2 years ago
8) Jennifer has a collection of 1,600 coins. Of the coins, 40% are dated
Kitty [74]
<h3>Answer:  400  (choice A)</h3>

==============================================

Explanation:

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25% of 1600 = 0.25*1600 = 400 coins were made after 1980

4 0
3 years ago
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of means times so you multiply the fractions

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3 years ago
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