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3 years ago

Edpuzzle pls helppp

Mathematics

1 answer:

jeyben [28]3 years ago

7 0

Answer:

I think its 2 and 4 i hope it is (´・ω・`)

◑︿◐

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Solve using the quadratic formula 3x^2+11x+5=0

storchak [24]

Answer:

$3x^2 + 11x + 5 = 0 : x = \frac{-11 + \sqrt{61} }{6} , x = \frac{-11 - \sqrt{61} }{6}$

Decimal:

$(x = -0.53162..., x = -3.13504...)$

Step-by-step explanation:

$3x^2+11x+5=0$

Solve with the quadratic formula:

For a quadratic equation of the form $ax^2+bx+c=0$ the solutions are:

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

For $a=3,\:b=11,\:c=5:\quad x_{1,\:2}=\frac{-11\pm \sqrt{11^2-4\cdot \:3\cdot \:5}}{2\cdot \:3}$

$x=\frac{-11 + \sqrt{11^2-4\cdot \:3\cdot \:5}}{2\cdot \:3} : \frac{-11 + \sqrt{61} }{6}$

$x=\frac{-11 - \sqrt{11^2-4\cdot \:3\cdot \:5}}{2\cdot \:3} : \frac{-11 - \sqrt{61} }{6}$

The solutions to the quadratic equation are:

$x=\frac{-11+\sqrt{61}}{6},\:x=\frac{-11-\sqrt{61}}{6}$

Hope I helped. If so, may I get brainliest and a thanks?

Thank you, have a good day! =)

8 0

4 years ago

Michael ran 3 miles in 24 minutes. What is his average running speed in miles per hour?

givi [52]

Answer:

7.5 miles / hour

Step-by-step explanation:

See the step-by-step solution in the picture attached below.

I hope this answer will help you. Have a nice day !

7 0

4 years ago

Read 2 more answers

What is the answer to <br> 5p+8 = 7p+2

jasenka [17]

Answer:

p = 3

Step-by-step explanation:

5p+8 = 7p+2 (subtract boths sides by 2 and 5p)

6 = 2p (Divide both sides by 2)

p = 3

4 0

3 years ago

Read 2 more answers

Adriel drove 216 miles in 8 hours. If he continued at the same rate, how far would he travel in 3 hours?

Maslowich

Answer:

If he drove 3 more hours he would be driving 241 Miles for 11 hours

3 Hours = 81 Miles

Step-by-step explanation:

216 = 8 hours

216 / 8 = 27 Miles per hour

27 x 3 = 81 Miles in 3 hours

216 + 81 = 241 Miles for 11 hours

Hope this helped you :D

4 0

1 year ago

What does this equal

Inessa [10]

Answer:

Step-by-step explanation:

You must divide the diameter of Mars by the diameter of softball.

$(7\times10^7):(0.098)=\dfrac{7\times10^7}{0.098}=\dfrac{7\times10^7:7}{0.098:7}=\dfrac{10^7}{0.014}\\\\=\dfrac{10^7}{\frac{14}{1000}}=10^7\times\dfrac{1000}{14}=\dfrac{10^7\times10^3}{14}=\dfrac{10^{7+3}}{14}=\dfrac{1}{14}\times10^{10}\\\\\dfrac{1}{14}\approx0.071\to\dfrac{1}{14}\times10^{10}\approx0.071\times10^{10}=0.071\times10^2\times10^8\\\\=7.1\times10^8\\\\\text{Used}\ a^n\times a^m=a^{n+m}$

4 0

3 years ago

Edpuzzle pls helppp​

Edpuzzle pls helppp