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Afina-wow [57]
3 years ago
7

I need help with this math please help

Mathematics
1 answer:
pogonyaev3 years ago
7 0

sorry did not mean to send that! hope you get you answer!


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Solving Square Roots Worksheet (x - k)^2 : Part 1
iVinArrow [24]

Answer:

1. x = +/- 2\sqrt{2} - 7

2. x = 3 +/- 2i\sqrt{3}

3. n = 2 +/- i\sqrt{2}

Step-by-step explanation:

1. Divide both sides by 2: (x + 7)^2 = 8

Square root both sides: x + 7 = +/- 2\sqrt{2}

Subtract 7 from both sides: x = +/- 2\sqrt{2} - 7

2. Square root both sides: x - 3 = \sqrt{-12}

Since there is a negative inside the radical, we need to have an imaginary number: i=\sqrt{-1} . So, \sqrt{-12} =i\sqrt{12} =2i\sqrt{3}

Add 3 to both sides: x = 3 +/- 2i\sqrt{3}

3. Divide by -5 from both sides: (n - 2)^2 = -2

Square root both sides: n - 2 = \sqrt{-2}

Again, we have to use i: n-2=\sqrt{-2} =i\sqrt{2}

Add 2 to both sides: n = 2 +/- i\sqrt{2}

Hope this helps!

8 0
3 years ago
Read 2 more answers
A large bag contains
Yuki888 [10]

Large bag contains 14

30% of 14 is 3 / 10 times 14 which is 42 / 10 = 21 / 5 pounds of pretzels, in improper form, 4 and 1 / 5th of a pound or 4.2 pounds

5 0
2 years ago
Heeeeeeeeelp plissee!!!
taurus [48]
8. C

9. C

10. A

Hope this helped!
5 0
3 years ago
Read 2 more answers
Choose all that applies help asap
melamori03 [73]

Answer:

idk maybe its c

Step-by-step explanation:

4 0
3 years ago
Write the point-slope form of the line that passes through (-8, 2) and is parallel to a line with a slope of -8. Include all of
Verizon [17]
Parallel lines have the same slope, so since you want a line that is parallel to a line with slope -8, your line will also have slope -8.

The slope-intercept form of the equation of a line is

y = mx + b

where m is the slope, and b is the y-intercept.

You already know you have a slope of -8, so m = -8, and you have

y = -8x + b

Now you need to find the value of b.

Use the point you know and substitute it in for x and y, and solve for b.

y = -8x + b

Use x = -8, and y = 2.

2 = -8(-8) + b

2 = 64 + b

-62 = b

b = -62

Now replace b with -62.

y = -8x + b

y = -8x - 62
4 0
3 years ago
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