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3 years ago

15

Can someone help me with this.

1 answer:

Allisa [31]3 years ago

5 0

Answer:

28 hours and 5 min

Step-by-step explanation:

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gladu [14]

Answer:

fyi b's answer has imaginary numbers in it...

Imaginary: 1 + $\frac{\sqrt{2i} }{2 }$

Imaginary: 1 - $\frac{\sqrt{2i} }{2 }$

Step-by-step explanation:

$2x^{2} - 4x -3 = 0$

$\sqrt{-4^{2} -4(2)(3)}$ = $\sqrt{-8}$ ... the negative root will produce imaginary solutions

8 0

2 years ago

Read 2 more answers

Find the missing side of the triangle

Katena32 [7]

$\\ \sf\longmapsto sin\theta=\dfrac{Perpendicular}{Hypotenuse}$

$\\ \sf\longmapsto sin74=\dfrac{n}{40}$

$\\ \sf\longmapsto n=40sin74$

$\\ \sf\longmapsto n=35(0.96)$

$\\ \sf\longmapsto n=38.4$

7 0

2 years ago

8 people are boarding a plane 2 have tickets for first class and board before everyone. In how many ways can these people board

mixer [17]

$2!6!=2\times1\times6\times5\times4\times3\times2\times1=1440$

3 0

3 years ago

Solve using any method. All work must be shown and handwritten.

Rashid [163]

Answer:

$x = - 3$

$y = 1$

Step-by-step explanation:

Write the system

$3x - y = - 10$

$x + y = - 2$

Solve by Elimination.

multiply the second equation by -3.

$3x - y = - 10$

$-3x - 3y = 6$

Add the Equations.

$- 4y = - 4$

$y = 1$

Plug this back in one of the equations.

$x + 1 = - 2$

$x = - 3$

8 0

3 years ago

Read 2 more answers

which statement is true about the equations –3x 4y = 12 and x1/4 – 1/3y = 1? the system of the equations has exactly one solutio

finlep [7]

If you would like to solve the system of equations, you can do this using the following steps:

-3x + 4y = 12
x * 1/4 - 1/3 * y = 1 ... x * 1/4 = 1 + 1/3 * y ... x = 4 + 4/3 * y
_____________
<span>-3x + 4y = 12
</span>-3 * (4 + 4/3 * y) + 4y = 12
-12 - 4y + 4y = 12
-12 = 12
-12 - 12 = 0
-24 = 0

The correct result would be: <span>the system of the equations has no solution; the two lines are parallel.</span>

4 0

3 years ago