1 year ago

Find the square root of -18 please show work if possible

Mathematics

1 answer:

Svetradugi [14.3K]1 year ago

3 0

Answer:

Step-by-step explanation:

Given :

Solution:

Thus ,

Thus the solution is irrational since square root 7 does not have a perfect square and equal to 6+2square root of 14

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Assume x=x(t) and y=y(t). Find dx/dt if x^2(y-6) = 12y + 3 and dy/dt = 2 when x = 5 and y = 12

777dan777 [17]

$x^2(y-6)=12y+3$

Differentiate:

$2x\dfrac{\mathrm dx}{\mathrm dt}(y-6)+x^2\dfrac{\mathrm dy}{\mathrm dt}=12\dfrac{\mathrm dy}{\mathrm dt}$

Plug in everything you know: $\dfrac{\mathrm dy}{\mathrm dt}=2$ , $x=5$ , and $y=12$

$2(5)\dfrac{\mathrm dx}{\mathrm dt}(12-6)+5^2(2)=12(2)\implies\dfrac{\mathrm dx}{\mathrm dt}=-\dfrac{13}{30}$

6 0

3 years ago

Start at 100.Create a pattern that subtracts 9 from each number.Stop when u have 5 numbers

attashe74 [19]

Answer:

equation: x-9=y

x=ur number

y=ur answer

5 0

2 years ago

D = b^2 -4ac solve for a 2/3 (x-18y) = 6y solve for x

seropon [69]

Answer:

a = $\frac{b^2-d}{4c}$

x = 27y

Step-by-step explanation:

Order of Operations: BPEMDAS

Question 1

Step 1: Write out discriminant

d = b² - 4ac

Step 2: Subtract b² on both sides

d - b² = -4ac

Step 3: Divide both sides by -1

b² - d = 4ac

Step 4: Divide both sides by 4c

a = $\frac{b^2-d}{4c}$

Question 2

Step 1: Write out equation

2/3(x - 18y) = 6y

Step 2: Distribute parenthesis

2/3x - 12y = 6y

Step 3: Isolate x by adding 12y on both sides

2/3x = 18y

Step 4: Divide both sides by 2/3

x = 27y

7 0

2 years ago

There were 60 people on a bus. After 3 stops, the number of people decreased to 48. What was the percent of decrease in the numb

faltersainse [42]

Answer:

I believe its 12%

Step-by-step explanation:

60-48=12 so 12%

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=2%20%20%5Ctimes%202%20" id="TexFormula1" title="2 \times 2 " alt="2 \times 2 " align="absmid

ICE Princess25 [194]

The answer is 4

hope this helps

8 0

3 years ago

Read 2 more answers