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V125BC [204]
3 years ago
9

-5x-16=9x+x-1 Solve the equation.

Mathematics
2 answers:
nadezda [96]3 years ago
7 0

Answer:

x= -1

Step-by-step explanation:

-5x-16=9x+x-1

-5x-9x-x=16-1

-15x=15

x= -1

Serggg [28]3 years ago
4 0

Answer:

x=-1

Step-by-step explanation:

15x=-15

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A culture of bacteria has an initial population of 41000 bacteria and doubles every 5 hours. Using the formula P t = P 0 ⋅ 2 t d
Crazy boy [7]

Answer:

Population of bacteria in culture after 14 hours is 285541.

Step-by-step explanation:

We are given with P_{t} =P_{0}(2)^{\frac{d}{t}}

Here initial population is 41000 , t=5 and d=14

Plug in these values into the formula

P_{14} =41000(2)^{\frac{14}{5} }

Simplify

P_{14}= 41000(2)^{2.8}

     =41000(6.9644)

     =285540.5847...

To the nearest whole number is 285541.

3 0
3 years ago
What is the center of the circle for this equation:<br> (x + 3)² + (y - 2)² = 25
Ksju [112]

The formula for the equation of a circle is (x - h)² + (y - k)² = r²

where (h, k) is the center of the circle and <em>r</em> is the radius.

So we need to find the values of (h, k) in order to find the center of the circle.

If we simply line up the equation of our given circle with our formula,

we can see that -h = 3 or h = -3 and -k = -2 so k = 2.

So now we have our answer.

center ⇒ (-3, 2)

8 0
3 years ago
Patrick wanted to gather data about the cost of joining a community pool in his area. He plotted the data and determined that th
ohaa [14]

Answer:

The y-intercept is 40. This is the cost of registration ⇒ last answer

Step-by-step explanation:

* Lets explain how to solve the problem

- Patrick wanted to gather data about the cost of joining a community

 pool in his area

- He plotted the data and determined that the average community

 pool membership cost consists of a one-time registration fee and

 a monthly fee

∴ The cost consists of two parts:

# Part A: one-time registration fee, it is a fixed amount not depend on

  any other condition

# Part B: monthly fee, it depends on the number of months

- He modeled that by the equation y = 15 x + 40, where

# y is the cost for the membership

# 15 is the monthly fee

# x is the number of months

# 40 is the one-time registration

- The form of the equation is y = mx + c, where c is the y-intercept

∴ The y-intercept in the equation y = 15 x + 40 is 40

∴ The y-intercept is the one-time registration fee

* The y-intercept is 40. This is the cost of registration

4 0
3 years ago
10) xc = rd , for x<br><br> Help plz
ExtremeBDS [4]

Answer:

x = rd/c

Step-by-step explanation:

xc = rd

xc/c = rd/c

x = rd/c

8 0
2 years ago
Quick algebra 1 question for 50 points!
Naddika [18.5K]

The line is parallel to y axis

We know that if a line is parallel to y axis

  • slope=tan90=undefined

So there is no slope

Here it has constant x value as -2

So the equation is

  • x=-2

Option A

7 0
2 years ago
Read 2 more answers
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