A culture of bacteria triples by the end of each hour. If there were initially 40 bacteria in a culture, how many bacteria should be there after 3 hours.

Answer:

2x^2+5x+1/5

Step-by-step explanation:

i typed this on a calculator.

Answer: 20x^4+50x^2+2x^2/10

Answer:

x=-18

Step-by-step explanation:

-(10+3x)=44

substitute the minus sign to the bracket

-10-3x=44

-3x=44+10

-3x=54

divide both sides by -3

so x=-18

Answer:

- x = 81 and 3/4

Step-by-step explanation:

8 × 2 – 4x = 363

16 - 4x = 363

Subtract 16 from each side:

16 - 16 - 4x = 363 - 16

- 4x = 327

Divide each side by 4:

- 4x  ÷ 4 = 327 ÷ 4

- x = 81 and 3/4

Answer:

Step-by-step explanation:

12+x=16

3x+y=19

4y-10=18

1/2xy=14

Answer:

12 + x = 16 because x is 4

3x + y is 19 because 3x is 12 and y is 7

4y - 10 is 18 because 4y is 28

1/2 xy is half of 28 or 14

hope this helps and brainliest please

Answer:

Pretty sure its -3,-2. not 100% sure but I am good at coordinates.

Step-by-step explanation:

Because you just go by the X axis first so that's -3 and then you go by the Y axis which is up and down and that would be -2. So its -3,-2.

Answer:Pretty sure it  is -3,-2.

Step-by-step explanation:just follow the graph

Answer:

14.

let me know if you want the steps

Answer:

View Highlighted Part in Picture!

Step-by-step explanation:

Mark me Brainliest?

Answer:

Choice A

Step-by-step explanation:

Answer:

A. Add 13 + 10, and keep the negative sign from - 13.

- 13 + 10

10 - 13 = - 3

Answer:

The density of the prism is 0.453 kilograms per cubic meter.

Step-by-step explanation:

Let suppose that mass in the prism is uniformly distributed. Then, the definition of density ([tex]\rho[/tex]), in kilograms per cubic meter, is defined by the equation below:

[tex]\rho = \frac{m}{V}[/tex] (1)

Where:

[tex]m[/tex] - Mass, in kilograms.

[tex]V[/tex] - Volume of the right angle triangle prism, in cubic meters.

Besides, the volume of the right angle triangle prism is:

[tex]V = \frac{1}{2}\cdot b\cdot h\cdot l[/tex] (2)

Where:

[tex]b[/tex] - Breadth of the base, in meters.

[tex]h[/tex] - Height of the base, in meters.

[tex]l[/tex] - Length of the base, in meters.

If we know that [tex]b = 2\,m[/tex], [tex]h = 2.5\,m[/tex], [tex]l = 3\,m[/tex] and [tex]m = 3.4\,kg[/tex], then the density of the prism is:

[tex]V = 7.5\,m^{3}[/tex]

[tex]\rho = 0.453\,\frac{kg}{m^{3}}[/tex]

The density of the prism is 0.453 kilograms per cubic meter.

Answer:

Part A & B

Step-by-step explanatPart A:

f(x) = 4x ^ 2 - 7x - 15

0 = 4x ^ 2 - 7x - 15

a = 4, b = -7, c = -15

a x c = -60

-12 x 5 = -60

-12 + 5 = -7

(4x + 5)(4x - 12)

4x ^ 2 - 12x I + 5x - 15

4x(x - 3) + 5(x - 3)

(x - 3)(4x + 5)

x = 3 x = -1.25 or -5/4

Part B:

Minimum point

(x1 + x2)/2

(3 -1.25)/2 = 0.875

f(x) = 4x ^ 2 - 7x - 15

f(0.875) = 4(0.875) ^ 2 - 7(0.875) - 15

f(0.875) = 3.06 - 6.125 - 15

f(0.875) = -18.065ion:

Answer:

12

Step-by-step explanation:

Im very sorry if it is wrong. I do not know any 3 step method.

Your answer is A!

Step-by-step explanation:

Your answer is A!

The coordinate point from the given graph is (3, -5). Therefore, option A is the correct answer.

A coordinate plane is a two-dimensional surface formed by two number lines. It is formed when a horizontal line (the X-axis) and a vertical line (the Y-axis) intersect at a point called the origin. The numbers on a coordinate grid are used to locate points.

From the given coordinate plane, the coordinate point lies in fourth quadrant.

Where, x-coordinate is positive and y-coordinate is is negative.

The coordinate point correspond to x-axis is 3 and coordinate point correspond to y-axis is 5.

So, the coordinate point is (3, -5)

Therefore, option A is the correct answer.

Learn more about the coordinate plane here:

https://brainly.com/question/24134413.

#SPJ5

Answer: -600 and 1600 were invested into the two accounts.

Step-by-step explanation:

x = amount invested in the first account.

y = amount invested in the second account.

You start off with this equation

[tex]x + y = 1000[/tex]

[tex]0.08x + 0.09y=86[/tex]

Subtract both sides by y.

[tex]x=1000-y[/tex]

Subsitude 1000 - x for x for the second equation.

[tex]0.08(1000-y)+0.09y=$86[/tex]

Use the distributive property to solve for y.

[tex]80-0.08y+0.09y=86[/tex]

[tex]80-0.01y=86[/tex]

[tex]6=-0.01y[/tex]

[tex]=-600[/tex]

Subsitude -600 for y in the first equation and solve for x.

[tex]x-600=1000[/tex]

[tex]x=1600[/tex]

-600 and 1600 were invested into the two accounts.

Answer:

more info?

Step-by-step explanation:

Answer:

a = -4; b = 5; c = -2

Step-by-step explanation:

quadratic equation: ax^2 + bx + c

a will allways have x squared

b will always have an x

c will always be alone, as it is a constant

Answer:

7.900 cm

Step-by-step explanation:

The computation of the diameter after using the tape is given below:

Since the circumference is 14.8 cm

And it would be decrease by 2.4 cm

So, the new circumference is

= 14.8 - 2.4

= 12.4 cm

Now the radius is

= 12.4 ÷ π

= 3.95

And, the diameter is

= 3.95 × 2

= 7.900 cm

Answer:

one real solution

no real solution

one real solution

Step-by-step explanation:

Answer:

m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction)

Step-by-step explanation:

Given the following

m<GFE = 90 degrees

GF = 3

EF = 4.6

The side opposite to m<E is GF

Adjacent side is EF

Using the SOH CAH TOA identity

tan theta = opp/adj

tan m<E =GF/EF

Substitute the given values

tan m<E  = 3/4.6

m<E = tan^-1 (3/4.6)

Hence the required result is m∠E = tan–1(StartFraction 3 Over 4.6 EndFraction)

Answer:

The answer is c

Step-by-step explanation:

Answer:

y=3x-4

Step-by-step explanation:

Answer:

y = 5x + 700

y = 7x + 400

Step-by-step explanation:

Answer:

y=2x+4

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(10-6)/(3-1)

m=4/2

m=2

y-y1=m(x-x1)

y-6=2(x-1)

y=2x-2+6

y=2x+4

Answer:

A

Step-by-step explanation:

X is less than -7 because the open circle indicates that x is not -7

Answer:

37%

Step-by-step explanation:

15+18+16=49

49/.37=18.13

Your biggest number is 18 so that means 37%

Answer:

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Step-by-step explanation:

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