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4 years ago

8

What is the sum sqaure root-2 and sqaure root -18

1 answer:

svet-max [94.6K]4 years ago

8 0

Answer:

<u>The correct answer is that 4√- 2 is the simplest radical form of this mathematical expression and 8i (i = imaginary unit) is the solution if we want to find out the square root of a negative signed number.</u>

Step-by-step explanation:

1. Let's write in a mathematical expression the information given:

Sum square root of -2 and the square root of - 18

√- 2 + √ - 18

√- 2 + √ 9 . - 2 ( 9 * -2 = - 18)

√- 2 + 3 √ - 2 (√ 9 = 3)

4 √- 2

This is the simplest radical form of this mathematical expression. If we want a concrete number, we should remember that if we refer to the imaginary numbers we can find the solution for √-2 = 2i, or for any other negative number, where i is the imaginary unit. This unit can be used for the development of the square root of negative signed numbers.

Then,

4 √- 2 = 4 (2i) = 8i

<u>The correct answer is that 4√- 2 is the simplest radical form of this mathematical expression and 8i (i = imaginary unit) is the solution if we want to find out the square root of a negative signed number.</u>

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Convert 1.1521 to a percent

o-na [289]

Answer:

to get a percent you would get the decimal and move it two places and you will get 115.21%

Step-by-step explanation:

with 1.1521 you will get the decimal and move it to the right to get 115.21%

3 0

3 years ago

Read 2 more answers

I need help with number 1

irina1246 [14]

Distribute
8-2t-2=-3t+1

Combine like terms
-2t+6=-3t+1

Add 3t to both sides
t+6=1

Subtract 6 from both sides
t=-5

Final answer: t=-5

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4 years ago

Solve the formula Ax+Bx = c for y

IgorC [24]

Answer:

B

Step-by-step explanation:

The correct formula given is:

$Ax+By=c$

We need to solve for y. First, we isolate the "y" term:

$Ax+By=c\\By=c-Ax$

Now, there's a "B" with y, to isolate the "y", we need to divide both sides by "B" and get "y":

$By=c-Ax\\\frac{By}{B}=\frac{c-Ax}{B}\\y=\frac{c-Ax}{B}$

Answer choice B is right.

3 0

3 years ago

the ratio of hard problems to easy problems was 23 to 7. how many easy problems were there if the total number of problems was 9

il63 [147K]

Answer:

5

Step-by-step explanation:

I just know the answer is five

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2 years ago

If the center thickness of a lens variés more than 0.150 millimeter from the target thickness of 5.000 millimeters, the lens can

Mice21 [21]

Answer:

All real numbers greater than or equal to 4,999.85 millimeters and less than or equal to 5,000.15 millimeters

Step-by-step explanation:

Let

x -----> values for the center thickness of the lens

we know that

The absolute value that represent this problem is

$\left|x-5,000\right|\le 0.150$

Solve the absolute value

First case (positive)

$+(x-5,000)\le 0.150$

Adds 5,000 both sides

$x\le 0.150+5,000$

$x\le 5,000.15\ mm$

Second case (negative)

$-(x-5,000)\le 0.150$

Multiply by -1 both sides

$(x-5,000)\ge -0.150$

Adds 5,000 both sides

$x\ge -0.150+5,000$

$x\ge 4,999.85\ mm$

therefore

The extreme acceptable values for the center thickness of the lens is the interval [4,999.85,5,000.15]

All real numbers greater than or equal to 4,999.85 millimeters and less than or equal to 5,000.15 millimeters

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3 years ago