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Nikolay [14]
3 years ago
5

What's the answer ?????

Mathematics
2 answers:
Alex777 [14]3 years ago
7 0
The awnser is 30 I hope I helped you with this question
Sindrei [870]3 years ago
3 0
20, I do believe. Quite Positive, though, might wanna check again
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3X squared plus 2X equals -4 number of solutions
PIT_PIT [208]

Answer:

The given equation has two solutions i.e  \frac{-1+\sqrt{13} }{3} ,  \frac{-1-\sqrt{13} }{3}

Step-by-step explanation:

The given expression as :

3 x² + 2 x - 4

For the quadratic equation in the form of a x² + b x + c , the value of x

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

Or, x =  \frac{-2\pm \sqrt{2^{2}-4\times 3\times (-4)}}{2\times 3}

Or, x = \frac{-2\pm \sqrt{4 + 48}}{6}

or, x = \frac{-2\pm \sqrt{52}}{6}

∴ x = \frac{-1\pm \sqrt{13}}{3}

Or, x = \frac{-1+\sqrt{13} }{3} ,  \frac{-1-\sqrt{13} }{3}

Hence The given equation has two solutions i.e  \frac{-1+\sqrt{13} }{3} ,  \frac{-1-\sqrt{13} }{3}  Answer

7 0
3 years ago
Brendan took a survey at school and found that 9 of the students surveyed planned to take dance as their next elective, while 63
ad-work [718]
Total amount of students=72
p(dance)=9/72
divide both numerator and denominator with 9
1/8
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8 0
4 years ago
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you paint 4 walls. Each wall is a a rectangle with a length of 24 feet and a height of 12 feet. One gallon of paint covers about
tatuchka [14]

Answer:

3 gallons

Step-by-step explanation:

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4 years ago
How many times as great as the value of 3 in 4385
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Υм ι тнιʝк ιтѕ 300 .нσρє ιт нєℓρѕ
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Given: -1/2x > 6.
IgorC [24]

Answer:

{x | x R, x<-12}

Step-by-step explanation:

SO basically think of it as x is a teenager that wants to be alone. so  have to figure out how to get everyone on the otehr side of their bedroom door (>)

so you are going to do this

-1/2x>6

/-1/2x  /-1/2x

x<6/-1/2

x<6*-2/1

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7 0
3 years ago
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