3 years ago

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Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

5 0

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3x+4y=16<br> find the value of x and y

zlopas [31]

Y is equal to 4-3x/4 and X=16/3 -4y/3

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2 years ago

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Isthere 100 inches in 8 foot

Ivan

No there are 96 inches in 8 feet because,
12 inches = 1 foot
12 x 8 = 96
so there are 96 inchs in 8 feet

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3 years ago

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Let f(x) = 3x + 2 and g(x) =7x + 6. Find f ·g and its domain.

Kitty [74]

Answer:

The answer is the option D

$21x^{2}+32x+12$ ; All real numbers

Step-by-step explanation:

we have

$f(x) = 3x + 2$

$g(x) =7x + 6$

Calculate f(x)*g(x)

$(3x + 2)*(7x+6)$

Multiply applying the distributive property

$(3x + 2)*(7x+6)=3x*7x+3x*6+2*7x+2*6\\=21x^{2}+18x+14x+12\\=21x^{2}+32x+12$

The domain of the function is the interval------> (-∞,∞)

All real numbers

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3 years ago

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Convert the improper fraction to a mixed number.<br> negative StartFraction 28 Over 3 EndFraction

Burka [1]

How many times does 3 go into 28? let's see 28÷3 is 9.333 so...9 whole times, thus 9 * 3 is 27 so

$\bf \cfrac{28}{3}\implies \cfrac{27+1}{3}\implies \cfrac{27}{3}+\cfrac{1}{3}\implies 9+\cfrac{1}{3}\implies 9\frac{1}{3}$

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88.4×10^3 in standard notation

scoray [572]

88.4*10^3 is = 88.4*10*10*10 =88400

Hope this helps! Any questions please just ask! Thank you!

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3 years ago