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Rudiy27
3 years ago
5

What is the sum of 1/12 plus 3/8 in a fraction? A.1/6 B.1/5 C.11/48 D.11/24

Mathematics
2 answers:
Nataliya [291]3 years ago
7 0
The correct answer is 11/24
Nuetrik [128]3 years ago
6 0
D.11/24
1/12=2/24
3/8=9/24
2/24+9/24=11/24
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Multiply the polynomials. (5x2 + 2x + 8)(7x – 6) A. 35x3 – 16x2 – 44x – 48 B. 35x3 – 14x2 + 44x – 48 C. 35x3 – 16x2 + 44x + 48 D
ZanzabumX [31]

Answer:

D) 35x³ - 16x² + 44x - 48

Step-by-step explanation:

(5x2 + 2x + 8)(7x – 6) = (5x2 + 2x + 8)* 7x + (5x2 + 2x + 8)*(– 6)

= (5x2*7x + 2x*7x + 8*7x) + (5x2*(-6) + 2x*(-6) + 8*(-6) )

=35x³ + 14x² + 56x - 30x² - 12x - 48

= 35x³ - 16x² + 44x - 48

5 0
3 years ago
Need help don’t know what to do I’m confused
umka21 [38]

Answer:B

Step-by-step explanation:

Not sure but the math came out like that.

5 0
2 years ago
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Simplify completely the quantity x squared plus x minus 12 over quantity x squared minus x minus 20 divided by the quantity 3 x
posledela
X² + x - 12 / x² - x - 20  ÷ 3x² - 24x + 45 / 12x² - 48x - 60

x² + x - 12 / x² - x - 20 * 12x² - 48x - 60 / 3x² - 24x + 45

<u>(x² + x - 12)(12x² - 48x - 60)</u>
(x² - x - 20)(3x² - 24x + 45)

<span><u>12x^4 - 48x³ - 60x² + 12x³ - 48x² - 60x - 144x² + 576x + 720</u>
</span>3x^4 - 24x³ + 45x² - 3x³ + 24x² - 45x - 60x² + 480x - 900
<span>
<u>12x^4 - 48x³ + 12x³ - 60x² - 48x² - 144x² - 60x + 576x + 720</u></span>
3x^4 - 24x³ - 3x³ + 45x² + 24x² - 60x² - 45x + 480x - 900

<u>12x^4 - 36x³ - 252x² + 516x + 720</u>
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<u>12(x^4 - 3x³ - 21x² + 43x + 60)  </u>
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<u>4(</u><span><u>x^4 - 3x³ - 21x² + 43x + 60)  </u>
</span><span>  (x^4 - 9x³ + 3x² + 145x + 300)</span>
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3 years ago
A student is driving a car at 60.0 miles/hour. what is its speed in m/s
hodyreva [135]
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tatuchka [14]
<h3>\frac{271}{21}</h3>

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