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Andrej [43]
3 years ago
7

Use an area model to multiply (3x+7)(4x+5).

Mathematics
1 answer:
DochEvi [55]3 years ago
5 0

Answer: 12x^2 + 43x + 35 (if you go to k12)

Step-by-step explanation: took the quiz :) (also, sorry forgot to actually answer..)

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Bella cycled a total of 12 kilometers by making 4 trips to work. How many trips will Bella have to make to cycle a total of 18 k
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9.<br> What is the range of the function<br> f(x) = 3.3?
klemol [59]

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69

Step-by-step explanation:

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Use the distributive property to write an equivalent expression: -(n+4)*
stealth61 [152]

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6 0
3 years ago
Carlos is using the quadratic formula to find the solutions of y=3x^2-5x-2. Which of the following will simplify to the correct
Nana76 [90]

Answer:

Fx=\frac{5\pm\sqrt{25+24} }{6}

Step-by-step explanation:

A quadratic equation in one variable given by the general expression:

ax^2+bx+c

Where:

a\neq 0

The roots of this equation can be found using the quadratic formula, which is given by:

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

So:

y(x)=3x^2-5x-2=0

As you can see, in this case:

a=3\\b=-5\\c=-2

Using the quadratic formula:

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}=\frac{-(-5)\pm\sqrt{(-5)^2-4(3)(-2)} }{2(3)}=\frac{5\pm\sqrt{25+24} }{6}

Therefore, the answer is:

Fx=\frac{5\pm\sqrt{25+24} }{6}

4 0
3 years ago
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