2 years ago

Can anyone help me with question 7 please?

Mathematics

1 answer:

natima [27]2 years ago

5 0

Answer:

c is the answer

Step-by-step explanation:

I hope it may helps you

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agasfer [191]

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6 0

2 years ago

Can someone please help me a show your work please

sertanlavr [38]

Answer:

x= 3

Step-by-step explanation:

19x-5=7+15x

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2 years ago

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What is the prediction for the outcome when the independent variable is 3? (Round the answer to the nearest hundredth.)

adelina 88 [10]

C bc i am a professor at Yale and it is simplistic...............................................................

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3 years ago

What does a closed circle on a number line indicate? Is it the solution does not include that number?

Lilit [14]

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2 years ago

Solve 3x2 + 4x = −5.

Alla [95]

Move the -5 over by adding 5 to both sides
3x^2+4x+5=0
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for an equation in the form
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$

a=3
b=4
c=5

x= $\frac{-4+/- \sqrt{4^2-4(3)(5)} }{2(3)}$
x= $\frac{-4+/- \sqrt{16-60} }{6}$
x= $\frac{-4+/- \sqrt{-44} }{6}$
x= $\frac{-4+/- 2\sqrt{-11} }{6}$
remember that√-1=i
x= $\frac{-4+/- 2i\sqrt{-11} }{6}$
x= $\frac{-2+/- i\sqrt{-11} }{3}$

x= $\frac{-2+ i\sqrt{-11} }{3}$ or x= $\frac{-2- i\sqrt{-11} }{3}$

4 0

2 years ago