A scientist discovered a new type of bacteria that will grow at a rate of 3 cells every 2 seconds. If the scientist starts with one bacteria cell in a petri dish, what equation could predict the amount of cells in the dish after x seconds? Please help me​

Answer:

C

Step-by-step explanation:

Given

[tex]\frac{(x-1)(x+1)}{x+2}[/tex]

The denominator of the rational function cannot be zero as this would make it undefined.

Equating the denominator to zero and solving gives the value that x cannot be, that is

x + 2 = 0 ⇒ x = - 2 ← excluded value

Answer:

C. -2

Step-by-step explanation:

Any number divided by 0 is undefined. So, find the value of x that will make the denominator(x + 2)  equal to 0:

x + 2 = 0

Subtract 2 from both sides of the equation to find the value of x:

x = -2

The only value of x that could make the denominator 0 is x = -2.

Hope this helps :)

Answer:

D.4

Step-by-step explanation:

If you think of the table as coordinates then 4 would be your y-intercept

Answer:

Percent or percentage or

%

means "per 100" or "out of 100". Therefore

12.3

%

=

12.3

100

.

So 12.3% of 129 pounds is:

12.3

100

⋅

129

1586.7

100

15.867

hops this help ✨

Answer:

The correct option is;

D(4, 4)

Step-by-step explanation:

The given coordinates of the points are, A(2, 3) B(8, 7), C(6, 1), therefore, the coordinates of the point D that will make CD perpendicular to AB will have a slope = -1/m, where, m = the slope of the line segment AB

The formula for finding the slope, m, of a segment, given the coordinates of two points on the straight line segment (x₁, y₁), (x₂, y₂)

[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

Therefore, for, the segment AB, we have;

m = (7 - 3)/(8 - 2) = 4/6 = 2/3

m = 2/3

Therefore, to make the segment AB perpendicular to the segment CD, the slope of the segment CD will be -1/m = -1/(2/3) = -3/2

The equation of the segment CD in point and slope form is therefore;

y - 1 = -3/2×(x - 6)

y - 1 = -3·x/2 + 9

The standard form of the equation of the segment CD is therefore;

y = -3·x/2 + 9 + 1 = -3·x/2 + 10

y =  -3·x/2 + 10

The point that satisfies the above equation is the point (4, 4) because;

4 =  -3 × 4/2 + 10

The correct option is therefore, D(4, 4).

Answer:

(-15, 0) --> x intercept

(0, 15) --> y intercept

Step-by-step explanation:

First, you need to find the equation of the line:

gradient equals 1 --> (6 - 11)/(-9 - (-4))

y = x + c

sub point (-9, 6)

6 = -9 + c

c = 6 + 9

c = 15

Equation of line: y = x + 15

x-intercept is when y = 0

0 = x + 15

x = -15 (that's the x-intercept)

(-15, 0)

y-intercept is when x = 0

y = 0 + 15

y = 15 (this is the y-intercept). The y-intercept is also the contant 'c'

(0, 15)

Answer: 60 hours

Step-by-step explanation:

it takes 6 hours to read 30/300 or 1/10 of the book

you take 6 times 10 because you read 1/10 every 6 hours . making it be 60 hours

Answer:

k=0

Step-by-step explanation:

6(k+2)+1=13 first  distribute

6k+12+1=13 then combine like terms

6k+13=13   then subtract 13

    -13   -13

6k=0 then divide 6

/6    /6

k=0

Answer:

24

Step-by-step explanation:

you would multiply 12 time 2

Answer:

a = - 3

Step-by-step explanation:

The equation has common factors x(x + 3) on both sides

For the 2 sides of the equation to be equal, then the factor

(x + a) = (x - 3) and by comparison

a = - 3

Answer:

Respuesta. ¿Cual de los dos planetas gira mas rapido? ¿Por que? Porque la velocidad de Marte es 0.81 veces a la de La Tierra, esto quiere decir que su velocidad es el 81% del total de la de la Tierra

Step-by-step explanation:

Answer/Step-by-step explanation:

Mars seems to go slower than the Earth, because Earth has a shorter path around the sun than Mars.

Marte parece ir más lento que la Tierra, porque la Tierra tiene un camino más corto alrededor del sol que Marte.

Answer:

5.88.........................

.

Answer:

It is better to to buy from At Food Lion

Step-by-step explanation:

At Harris Teeter: 7 picture frames cost $15

Cost per picture frames = Total cost of picture frames / number of picture frames

= $15 / 7

= $2.14 per picture

At Food Lion: 9 picture frames cost $17

Cost per picture frames = Total cost of picture frames / number of picture frames

= $17 / 9

= $1.89 per picture

The cost of pictures frames Amat Food Lion is cheaper than at Harris Teeter

It is better to to buy from At Food Lion

Answer:

102 degrees

Step-by-step explanation:

angle in a point is equal to 360 degrees

so 163+95=258

360-258=102

Answer:

1.36078

Step-by-step explanation:

Answer:

No, there is no sequence to be followed here.

Step-by-step explanation:

Answer:

10 divided by 12 equals 0.833333333

Answer:

The answer would be A.

Step-by-step explanation:

Slope Formula: y1-y2/x1-x2

So:

33+9/-3-4

42/-7

This gives a slope of -6.

Answer: B

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

9x= 4x+20

5x=20

x=4

Answer:

70°

Step-by-step explanation:

since two lengths are equal to 3.5 that’s means there’s are two equal angles (55° and 55°)

a triangle adds up to 180°

so to find x we set this up:

x +55 +55 = 180

x + 110 = 180

x = 70°

Answer:

x = 19/4

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define equation

-6 + 4x = 13

Step 2: Solve for x

Step 3: Check

Plug in x to verify it's a solution.

Here, we see that 13 does indeed equal 13.

∴ x = 19/4 is a solution of the equation.

The slope of 50 will have the two situations written below,

A.) Driving 450 miles in 9 hours

B.) Reading 250 pages in 5 hours

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.

Given that each of the options below describes a relationship that you need to graph in a coordinate plane.

The relationship showing the slope of 50 is:-

Driving 450 miles in 9 hours,

Slope = 450 / 9 = 50

Reading 250 pages in 5 hours

Slope = 250 / 5 = 50

To know more about coordinate geometry follow

https://brainly.com/question/3493733

#SPJ2

Answer:

9.2*10^-7

Step-by-step explanation:

Move decimal until there is one number to the left.  The number of times moved will be the exponent.  If the decimal moves left the exponent is positive, if it moves left it is negative.

So 0.00000012=1.2*10^-7

1.2*10^-7 + 8*10^-7

9.2*10^-7

(-1,4,1.5)

Solve by graphing, the lines intersect near the point.

Answer: (-1.4,1.5)

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

2.6*1.2=3.12

Answer: The answer is incorrect it's actually 3.12

Step-by-step explanation: The decimal was placed in the incorrect spot.

Answer:

C

Step-by-step explanation:

The opposite of  negative 3.3 is positive 3.3 or just 3.3 so therefore the answer would be C as it is slightly ahead of 3 on the number line but not so far as to indicate anything larger.

Answer:

1. 20

2. Segment SW equals 8

Step-by-step explanation:

Setup the equation 6x+5=8x and then solve for x. x comes out to be 5/2. The substitute that in for x and solve. 6(5/2)+5 and this equals 20, your solution.

Segment SW=8 because of the perpendicular bisector theorem. It states that if a point lies on the perpendicular bisector of a segment, then it is equidistant from the endpoints of that segment (i.e., equal length). This makes Segment SW=8

If you can please make my answer the brainliest that would be much appreciated. Thanks!

And gimme them $5

Answer:

The company needs 390 oz of filler.

Step-by-step explanation:

your welcome