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A scientist is studying the growth rates of three samples of bacteria in different conditions. The following three functions represent the number of bacteria in the three samples after x hours.


Order the samples by their average growth rate over the interval [1, 3], from least to greatest.

Answer: true

Step-by-step explanation: Using the order of operations, 81 / 9 would be first, which is equal to 9. Then, add 2. 2+9 = 11, so the answer is true.

Since division goes before addition we first divide 81:9 and get 9 and to that we add 2 addition goes after division. 9+2 is equal to 11 so the answer is True.

A good way to remember it is:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

Hope this helps! <3

Answer:

Area of a parallelogram would be 13.46

Step-by-step explanation:

Since area of a parallelogram is represented by the formula

Area = [tex]\frac{1}{2}[/tex] ([tex](D_{1}*D_{2})[/tex]

Where [tex]D_{1}[/tex] and [tex]D_{2}[/tex] are two diagonals of the given parallelograms.

In the given figure [tex]D_{1}=AC[/tex] and [tex]D_{2}[/tex] = BD

We will find the length of [tex]D_{1}[/tex] and [tex]D_{2}[/tex] first

Since points A and C are (3,6) and (5,1)

So distance AC = [tex]\sqrt{(6-1)^{2}+(3-5)^{2}  }[/tex]

= [tex]\sqrt{5^{2}+(-2)^{2}}[/tex]

= [tex]\sqrt{25+4}=\sqrt{29}[/tex]

Since B and D are the points (6, 5) and (2, 2)

So length of BD = [tex]\sqrt{(6-2)^{2}+(5-2)^{2}}[/tex]

BD = [tex]\sqrt{4^{2}+3^{2}}=\sqrt{25}=5[/tex]

Now we will put these values in the formula

Area of parallelogram = [tex]\frac{1}{2}(\sqrt{29})(5)[/tex]

= [tex]\frac{5}{2}[/tex] × [tex]\sqrt{29}[/tex]

= (2.5) (5.385)

= 13.46

Answer:

y = [tex]\frac{1}{2}x + \frac{29}{4}[/tex]

Step-by-step explanation:

First, we need to rearrange the equation to make it y = mx + c

4x - y = 3

y + 3 = 4x

y = 4x -3

So the slope of the line is 4.

The slope of a line perpendicular to an equation is:

[tex]\frac{-1}{gradient}[/tex]

So the slope of the perpendicular line is:

[tex]\frac{-1}{4}[/tex] = -0.25

Now to find the equation of a line you can use the following equation:

y - y₁ = m(x - x₁)

Where y₁ is the y-coordinate, x₁ is the x-coordinate and m is the gradient. Plug the values in:

y₁ = 6

x₁ = -5

m = [tex]\frac{-1}{4}[/tex]

y - 6 = [tex]\frac{-1}{4}[/tex](x - - 5)

To get rid of the fraction we need to multiply the whole equation by 4:

4y - 24 = -1(x - - 5)

The two negatives cancel out:

4y - 24 = -1(x + 5)

Multiply the brackets out:

4y - 24 = -x + 5

Now, to rearrange the formula back into y = mx + c

Move the -24 over to the other side making it a +24:

4y = 2x + 5 + 24

4y = 2x + 29

Divide everything by 4:

y = [tex]\frac{2}{4}x + \frac{29}{4}[/tex]

y = [tex]\frac{1}{2}x + \frac{29}{4}[/tex]

Answer: To solve these types of questions what I always do is get a protractor if you have one and put it up against to where the dot is in the middle of the empty hole and then get a ruler or a pencil and make the line keep going to see what angle. In this case your answer is 65% I think.

Answer:

B. <1 and <5

Step-by-step explanation:

they look exactly the same

Answer:

Correct answer is B. <1 and <5

Step-by-step explanation:

Answer:the value of y is 44

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Since GK bisects ∠FGH then ∠FGK = ∠KGH, hence

6v - 2 = 4v + 4 ( subtract 4v from both sides )

2v - 2 = 4 ( add 2 to both sides )

2v = 6 ( divide both sides by 2 )

v = 3 → C

Answer:

x = 2

Step-by-step explanation:

check by substituting each given value of x into the function

x = 0 ⇒ y = [tex]\frac{3}{4}[/tex] × 0² = 0

hence (0, 0) is correct

x = 2 ⇒ y = [tex]\frac{3}{4}[/tex] × 4 = 3

hence (2, 4 ) is incorrect

x = 3 ⇒ y = [tex]\frac{3}{4}[/tex] × 9 = 6 [tex]\frac{3}{4}[/tex]

hence (3, 6 [tex]\frac{3}{4}[/tex]) is correct

x = 5 ⇒ y = [tex]\frac{3}{4}[/tex] × 25 = 18 [tex]\frac{3}{4}[/tex]

hence (5, 18 [tex]\frac{3}{4}[/tex]) is correct

Answer: 715 Miles

Step-by-step explanation:

Divide 605 miles by 11 hours, which would give you how far he travels in 1 hour. (605/11=55)  Since they give you 13 hours, multiply 13 hours by 55 miles which gets you 715 miles :)

Step-by-step explanation:

Given blood cholesterol level was measured for each of 8 adults (in mg/dL) are:

264, 191, 160, 148, 262, 212, 268, 246

In order to find the mean, we need to add all those 8 numbers and divide by 8.

Therefore, mean = [tex]\frac{264+191+160+148+262+212+268+246}{8} =\frac{1751}{8} =218.9.[/tex]

In order to find the median, we need to arrange them in ascending order:

148, 160, 191, 212, 246, 262, 264, 268.

The middle most two values are 212 and  246.

Therefore, median = [tex]\frac{212+246}{2} =\frac{458}{2} = 229.[/tex]

[tex]\mathrm{The\:mode\:is\:the\:term\:in\:the\:data\:set\:that\:appears\:the\:most.}[/tex]

[tex]\mathrm{If\:there\:is\:more\:than\:one\:term\:that\:appears\:the\:most,\:then\:there\:is\:no\:mode.}[/tex]

[tex]\mathrm{Count\:the\:number\:of\:times\:each\:element\:appears\:in\:the\:list}[/tex]

[tex]\begin{pmatrix}148&160&191&212&246&262&264&268\\ 1&1&1&1&1&1&1&1\end{pmatrix}[/tex]

[tex]\mathrm{The\:most\:common\:element\:is\:not\:unique,\:so\:there\:is\:no\:mode}[/tex]

To solve the system of equations, isolate x in the second equation and substitute it into the first equation. Simplify the resulting equation and solve for y. Substitute this value of y back into the second equation to find the value of x.

To solve the system of equations:

50 + 10y + 6y = -14

16y = -64

y = -4

Substitute this value of y back into the second equation to find x:

x - 2(-4) = 10

x + 8 = 10

x = 2

Therefore, the solution to the system of equations is x = 2 and y = -4.

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Answer:

None of these are equivalent

Step-by-step explanation:

36 + 9 = 45

9(4 – 1) = 9* 3 = 27

 (4 • 9) + (4 • 2) = 36+ 8 = 44

Answer:

68

Step-by-step explanation:

Since this is an isosceles triangle the bottom 2 angles are equal.  So both bottom angles are 56 degrees.  The three angles of a triangle add to 180 degrees.

56+ 56+ x = 180

Combine like terms

112 +x =180

Subtract 112 from each side

112-112+x = 180-112

x =68

Answer:

Rational

Step-by-step explanation:

A rational number is a number that can be written  as a fraction, (or is any real number, positive or negative) Irrational numbers, for example, are numbers that are decimals, but dont terminate or repeat. Such as [tex]\pi[/tex] and [tex] the square root of 2, 3 and 5. may i have brainliest?

[tex]A(n)=5+(n-1)\left(\dfrac{1}{6}\right)=5+\dfrac{1}{6}n-\dfrac{1}{6}=\dfrac{1}{6}n+\dfrac{30}{6}-\dfrac{1}{6}\\\\A(n)=\dfrac{n+29}{3}\\\\\text{Put n = 1, n = 4 and n  = 10 to the formula:}\\\\A(1)=\dfrac{1+29}{3}=\dfrac{30}{3}=10\\\\A(4)=\dfrac{4+29}{3}=\dfrac{33}{3}=11\\\\A(10)=\dfrac{10+29}{3}=\dfrac{39}{3}=13[/tex]

Answer:How much soy sauce does Bonnie mix with every 1 millimeter of vinegar is 1.5

How much vinegar does bonnie mix with 1 millimeter of soy sauce is .666

Step-by-step explanation: The first is 150 divided by 100 is 1.5

Answer:

y= 1/2 x +11/2

Step-by-step explanation:

To find the slope

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

  = (8-5)/(5--1)

  = 3/(5+1)

  = 3/6

  = 1/2

Using point slope form of a line

y-y1 = m(x-x1)

y-5 = 1/2(x--1)

y-5 = 1/2(x+1)

Distribute

y-5 = 1/2x +1/2

Add 5 to each side

y = 1/2x + 1/2 + 5

Change 5 to 10/2

y = 1/2x + 1/2 + 10/2

y = 1/2x + 11/2

Slope-intercept form:

y = mx + b

"m" is the slope, "b" is the y-intercept (the y value when x = 0) or (0,y)

To find the slope, you can use the slope formula and plug in the two points:

(-1,5) = (x₁ , y₁)

(5,8) = (x₂ , y₂)

[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

[tex]m=\frac{8-5}{5-(-1)}[/tex]

[tex]m=\frac{8-5}{5+1} =\frac{3}{6} =\frac{1}{2}[/tex]

y = 1/2x + b

To find "b", plug in either of the points into the equation:

(5,8)

y = 1/2x + b

8 = 1/2(5) + b

8 = 5/2 + b      Subtract 5/2 on both sides

8 - 5/2 = b         Make the denominators the same in order to subtract them

16/2 - 5/2 = b

11/2 = b

[tex]y = \frac{1}{2}x+\frac{11}{2}[/tex]    

The 3rd option is your answer

Answer:

[tex]m<A=125\°[/tex]

[tex]m<B=35\°[/tex]

Step-by-step explanation:

step 1

Find the value of x

we know that

The sum of the interior angles in a triangle must be equal to 180 degrees

so

[tex]m<A+m<B+m<C=180\°[/tex]

substitute the values and solve for x

[tex](6x-1)\°+20\°+(x+14)\°=180\°[/tex]

[tex]7x=180\°-33\°[/tex]

[tex]7x=147\°[/tex]

[tex]x=147\°/7=21\°[/tex]

step 2

Find the measure of angle A

[tex]m<A=(6x-1)\°=6(21)-1=125\°[/tex]

step 3

Find the measure of angle C

[tex]m<C=(x+14)\°=21+14=35\°[/tex]

Answer:  [tex]\frac{x^2}{10} = -\frac{y^2}{18}[/tex]

Step-by-step explanation:

Since, The degenerate form of an ellipse is always a point.

Thus, the equation that shows only a point will be our answer.

Since [tex]9x^2 + 4y^2 = 1[/tex] is the equation of an ellipse,

Thus, It can not be a point.

[tex]\frac{x^2}{14} + \frac{y^2}{19} =2[/tex] is not a point ( because it is an equation of ellipse)

But, when we plot [tex]\frac{x^2}{10} = -\frac{y^2}{18}[/tex]

We get only a point (0,0).

Thus, equation, [tex]\frac{x^2}{10} = -\frac{y^2}{18}[/tex] shows only one point.

Therefore, it is a generated form of ellipse.

The equation representing a degenerate ellipse would have the sum of the distances from the foci to any point on the curve as a constant.

An ellipse is a closed curve such that the sum of the distances from a point on the curve to the two foci is constant. So, the equation representing a degenerate ellipse would have the sum of the distances from the foci to any point on the curve as a constant. The correct equation is (b).

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Answer:

Proportion states that the two ratio or fractions are equal.

Given the statement: One grain of sand approximately weighs 7 * 10^{-5} g.

To find how many grains of sand are there in 6300 kg of sand.

Let x be the number of grains of sand in 6300 kg of sand.

Using conversion :

1 kg = 1000 g

6300 kg = 6300000 g

Then, by using proportion method, we have;

[tex]\frac{1}{7\times 10^{-5}}= \frac{x}{6300000}[/tex]

[tex]\frac{10^5}{7} = \frac{x}{6300000}[/tex]

By cross multiply we get;

[tex]6300000 \times 10^5 = 7x[/tex]

or

[tex]63 \times 10^5 \times 10^5 = 7x[/tex]

[tex]63 \times 10^{5+5} = 7x[/tex]  [using [tex]x^a \cdot x^b = x^{a+b}[/tex]]

[tex]63 \times 10^{10} = 7x[/tex]

Divide both sides by 7 we get;

[tex]x = \frac{63 \times 10^{10}}{7} = 9 \times 10^{10}[/tex]

Standard form is a way of of writing down very large or very small numbers easily.

Therefore, [tex]9 \times 10^{10}[/tex] grains of sand are there in 6300 kg of sand.

There are many ways to answer this. Here is one answer shown below

AB/WX = BC/XY

On the left side is the ratio of AB over WX. These two sides are the bottom horizontal portions of the triangles. This is a visual indication that they correspond to one another. More concrete proof of this is that AB and WX are the first two letters of the sequences ABC and WXY respectively. The order is very important to help establish pairs like this.

On the right side of that equation above, we have BC and XY as the diagonal sides on the right part of each triangle. They are the last two letters of ABC and WXY respectively, which is a non-visual way to prove these two sides correspond.

It might help to line up ABC over top WXY so you can pick out the corresponding sides. I show this in the attached image below.

Answer: There are many ways to answer this.

Step-by-step explanation:

On the left side is the ratio of AB over WX. These two sides are the bottom horizontal portions of the triangles. This is a visual indication that they correspond to one another. More concrete proof of this is that AB and WX are the first two letters of the sequences ABC and WXY respectively. The order is very important to help establish pairs like this.

On the right side of that equation above, we have BC and XY as the diagonal sides on the right part of each triangle. They are the last two letters of ABC and WXY respectively, which is a non-visual way to prove these two sides correspond.

If there are 4 yellow pencils for each blue one, then this is the answer. If not then comment and tell me.

Blue   Yellow

5        20

7        28

9        36

11        44

13       52

The required number of yellow and blue pencils are 44 and 11 respectively.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
As Shawan has 4 yellow pencils for every blue pencil,
Let the number of blue pencils be b,
Now,
Yellow pencil (y) = 4 × b
Now,
put b = 5,7,9,11, or 13
So y = 20, 28, 36, 44, or 52

Now,
b + y  = 55
when b = 11 and y = 44 sums of the pencil would be 55.

Thus, the required number of yellow and blue pencils are 44 and 11 respectively.

Learn more about models here:
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y = x + 1   (*)

3x - y = 9   (**)

Substitute (*) to (**):

3x - (x + 1) = 9

3x - x - 1 = 9      add 1 to both sides

2x = 10     divide both sides by 2i

Put the value of x to (*):

y = 5 + 1

Because this is a parallelogram, we know that the diagonals bisect. This means that AO = DO, and CO = BO

It doesn't matter which two segments we use, but I'm going to use CO = BO for this one.

3x - 7 = x - 1

2x = 6

x = 3

Option B. is the answer.

Answer: d

Step-by-step explanation:

Multiply the probability by the cost of the accident:

14,886.05 x 0.071 = 1056.91

Now add the overhead cost:

1056.91 + 110 = 1166.91

The closest answer to this is number D.

Answer:

D. $1165.49

Step-by-step explanation:

We have that the probability of a driver getting into an accident = 7.1% i.e. 0.071.

Now, the average cost of an accident = $14,886.05

Then, the expected cost of an accident =  $14,886.05 × 0.071 = $1056.91

As, the overhead cost for insurance = $110

Therefore, the driver's insurance premium = $1056.91 + $110 = $1166.91

Since, the closest option to $1166.91 is option D.

Hence, the driver's insurance premium will be $1165.49.

Answer:

y = -3x+20

Step-by-step explanation:

First we will write the equation in point-slope form,

[tex]y-y_1=m(x-x_1)[/tex], where m is the slope and [tex](x_1, y_1)[/tex] is a point on the line.

We must find the slope.  The formula for slope is

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Using our two points, we have

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

We will use the first point and this slope:

y-2 = -3(x-6)

Using the distributive property, we have

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

y - 2 = -3x--18

y - 2 = -3x+18

Add 2 to each side:

y-2+2 = -3x+18+2

y = -3x+20

Answer:

Alright well solve by dividing using polynomial division

10 - 60/x + 4 Hope this helps have a nice day :)

Step-by-step explanation: