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Answer:

- i

Step-by-step explanation:

i = √( - 1) ;

i³ =  (√( - 1))(√( - 1))(√( - 1)) = - 1 (i) = - i

Answer:

eat sleepless duduehei

Answer:

X^2

Step-by-step explanation:

Answer:

5/12 , 1/2 , 3/5 , 3/4

Step-by-step explanation:

i gave them all a common denominator then ordered them

give brainliest please

Answer:

7x+4

Step-by-step explanation:

1/2(2x+8)

=x+4

x+4+6x

=7x+4

PLS GIVE BRAINLIEST

Answer:

7x+4

Step-by-step explanation:

1/2(2x+8)+6x

divide by 2 or multiply 1/2 it equals the same anyway

x+4+6x

add like terms

7x+4

The question above is incomplete

Complete Question

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone density of 1,500 kg/mg³. The doctor writes an exponential function to represent the situation. Which values should the doctor use for a and b in a function written in the form f(x) = ab^x, where f(x) represents the bone density after x years?

Answer:

a = 1500

b = 0.97

f(x) = ab^x

f(x) = 1500(0.97)^x

f(x) = 1500 × 0.97^x

Step-by-step explanation:

We are to find a and b

This question has to do with exponential decay.

This is written as

y = a(1 - r)^x

f(x) = ab^x

r = rate of exponential decay

f(x) = y

a = a

b^x = (1 - r)^x

a = current bone density of the patient = 1500kg/m³

b = (1 - r)

r = 3% = 0.03

b = (1 - 0.03)

b = 0.97

Therefore,

a = 1500

b = 0.97

Hence:

f(x) = ab^x

f(x) = 1500(0.97)^x

f(x) = 1500 × 0.97^x

The simple interest earned on $530 at 5.5% rate for 1 years is $31.80.

The formula for simple interest is expressed mathematically as;

I = P × r × t

Where I is interest, P is principal, r is interest rate and t is time period.

Given the data in the question;

First, convert the rate from percent to a decimal form

Rate r = 6%

Rate r = 6/100

Rate r = 0.06

To determine the simple interest earned, plug the given values into the simple interest formula and solve for I.

I = P × r × t

I = $530 × 0.06 × 1

I = $530 × 0.06

I = $31.80

Therefore, the simple interest accumulated after 1 years is $31.80.

Learn more about simple interest here: brainly.com/question/25845758

#SPJ1

Answer:

There's no answer to this one. You didn't provide enough info.

Step-by-step explanation:

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Answer:

0=85

4=109

10=145

the answers are Blank A=85,Blank B=109 and Blank C= 10

Answer:

4.5 hours

Step-by-step explanation:

8:2h = 18:x

8x = 18×2h

x = 36h/8

x = 4.5

hope this helps :)

Answer:

46

Step-by-step explanation:

So, the plan

monthly =40 + 1.50x

and he orders 4 movies in a month your problem to solve now looks like this

1 month = 40+1.50x4

Then, 1 month= 40 + 6

1 month= 46

9514 1404 393

Answer:

  (2, 3)

Step-by-step explanation:

The coefficients of x are opposites, so the x-terms can be eliminated by adding the two equations together:

  (2x+3y) +(-2x+5y) = (13) +(11)

  8y = 24 . . . simpify

  y = 3 . . . . . divide by 8

Only one answer choice has y = 3: (x, y) = (2, 3).

__

If you like, you can finish the solution by substituting into one of the equations.

  2x +3(3) = 13

  2x = 4 . . . . . . . subtract 9

  x = 2 . . . . . . . . divide by 2

The solution is (x, y) = (2, 3).

_____

A graph confirms this solution.

Answer:

the answer is 6 u welcome

Answer:

y=-2/3x+8

Step-by-step explanation:

first, find the y intercept, or b.

write your equation so far: y = -2/3x + b

Now substitute in your given point (6,4)

so now we got: 4 = -2/3(6) + b

which gives you: 4 = -4 + b

Now, we find b.

4 = -4 + b  

+4    +4      < isolating b...

8 = b

now put it back in..

y=-2/3x+b

hope this helped luv <3

Answer:

1/2

Step-by-step explanation:

went up one across two. rise over run y over x

Answer:

1/2

Step-by-step explanation:

Answer:32

Step-by-step explanation:

Well, if you're asking for help with 4 divided by 1/8, there is a simple way to do it.

In order to divide fractions, you multiply by the reciprocal.

4*8=32

So the answer is 32.

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only need one more before I advance, thanks!

Answer:To find the quotient of 4 ÷  

1

8

, count the number of

✔ eighths

in four whole circles.

A faster way to add eight parts, four times, is to multiply 4 by

✔ 8

.

The quotient of 4 ÷  

1

8

is

✔ 32

.

Step-by-step explanation:

Answer:

12 numeros

Step-by-step explanation:

para que pueda obtener el 8% de probabilidad, tendrá que comprar el 8% de los números

8% x 150

8  x 150

100

=12 numeros

espero eso ayude

Answer: x =420 s = 21

Step-by-step explanation:

There's actually a video on Y ou Tu be for that. :p

Answer:

x = 4

Step-by-step explanation:

2.25x=1.5x+6

divide on both sides by 1.5x which equals

1.5x=6

divide both sides by 1.5

x=4

Answer:

x=4

Step-by-step explanation:

you have to het x by its self

Answer:I’m not sure but I think it 7

Step-by-step explanation:

Answer:

I would start the graph at (0,36) and go down 12, right 1 until you reach the end of the graph

Step-by-step explanation:

Hope it helps

Answer:

[tex]\displaystyle f(x)=-\frac{2}{3}(x+2)(x-3)^2[/tex]

Step-by-step explanation:

The graph corresponds to a cubic function of the form:

[tex]f(x)=a(x-p)(x-q)(x-r)[/tex]

Where p, q, and r are the zeros of f(x).

We can clearly see there are only two crossings through the x-axis. That is because one of the roots is repeated (multiple).

Thus, the roots are p=-2, q=r=3

Substituting into the function:

[tex]f(x)=a(x+2)(x-3)(x-3)[/tex]

[tex]f(x)=a(x+2)(x-3)^2[/tex]

The value of a can be found by using the y-intercept seen on the graph (0,-12):

[tex]-12=a(0+2)(0+3)^2[/tex]

Operating:

[tex]-12=18a[/tex]

Thus:

[tex]a = -12 / 18 = -2/3[/tex]

The function is now complete:

[tex]\mathbf{\displaystyle f(x)=-\frac{2}{3}(x+2)(x-3)^2}[/tex]

Answer:

sorry bro ion know it i just need points for my testg.

Step-by-step explanation:

Answer:

A = $11093

Step-by-step explanation:

Given the following data;

Principal = $25,000

Rate = 15% = 15/100 = 0.15

Time, t = 5

To find the future value, we would use the compound interest formula;

[tex] A = P(1 + \frac{r}{n})^{nt}[/tex]

Where;

Substituting into the equation, we have;

r = -0.15 because it's depreciating.

[tex] A = 25000(1 + \frac{-0.15}{1})^{1*5}[/tex]

[tex] A = 25000(1 - 0.15)^{5}[/tex]

[tex] A = 25000(0.85)^{5}[/tex]

[tex] A = 25000*0.4437[/tex]

A = 11092.63 ≈ $11093

Therefore, the future value, A after 5 years is $11093.

Answer:

11809

Step-by-step explanation:

Answer:

8 < x < 16

Step-by-step explanation:

Consider an angle slightly less than 180 between the 4 and 12 ft sides.  The measure between the 2 end points is slightly less than the total of the two sides.  So the greatest length is 16.

Consider an angle slightly more than 0 between the 4 and 12 ft sides.  The measure between the 2 end points is slightly more than the difference between the two sides.  So the lowest length is 8.

Answer:

[tex]\frac{dy}{dx} =\frac{-8}{x^2} +2[/tex]

[tex]\frac{d^2y}{dx^2} =\frac{16}{x^3}[/tex]

Stationary Points: See below.

General Formulas and Concepts:

Pre-Algebra

Calculus

Derivative Notation dy/dx

Derivative of a Constant equals 0.

Stationary Points are where the derivative is equal to 0.

Basic Power Rule:

Quotient Rule: [tex]\frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]

Step-by-step explanation:

Step 1: Define

[tex]f(x)=\frac{8}{x} +2x[/tex]

Step 2: Find 1st Derivative (dy/dx)

Step 3: 1st Derivative Test

Our Critical Points (stationary points for rel max/min) are -2 and 2.

Step 4: Find 2nd Derivative (d²y/dx²)

Step 5: 2nd Derivative Test

Our Possible Point of Inflection (stationary points for concavity) is 0.

Step 6: Find coordinates

Plug in the C.N and P.P.I into f(x) to find coordinate points.

x = -2

x = 2

x = 0

Step 7: Identify Behavior

See Attachment.

Point (-2, -8) is a relative max because f'(x) changes signs from + to -.

Point (2, 8) is a relative min because f'(x) changes signs from - to +.

When x = 0, there is a concavity change because f"(x) changes signs from - to +.