Which is faster?

The number of bacteria colonies doubling every 80 minutes
Or
The number of bacteria colonies quadrupling after 4 hours (once?)

Answer:

Step-by-step explanation:

What must be added to 3x + y to get 2x + 3y?

3x + y + z = 2x + 3y

3x + z = 2x + 3y - y

3x + z = 2x + 2y

z = 2x-3x+2y

z = -x+2y

-------------------

check

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

2x + 3y

the answer is good

Step-by-step explanation:

Answer:

I have completed it also

Step-by-step explanation:

what the person ontop of me said it correct

We get the number of elements in the set B will be 62.

The universal set is A consists of the primary one hundred positive integers.

Set B is a subset of A.

One possibility is that B consists of the primary 62 positive integers.

Then only, the greatest quantity that may be shaped through the sum of any factors of set B is 123.

The number of elements in set B is equal to  62.

We also can selectively interchange one or more elements of B and and add them in complement of B

In most of these instances the number of elements in set B might be 62.

Therefore, we get the number of elements in the set B will be 62.

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Answer:

270

Step-by-step explanation:

The area is the same as the original area multiplied by the square of the scale factor.

The length of the unknown side of the right triangle is 13

A right triangle (American English), sometimes known as a right-angled triangle (British), is a triangle with one angle that is a right angle (i.e., a 90-degree angle), or two sides that are perpendicular. The link between is the basis of trigonometry.

between the right triangle's angles and sides.

The side across from the right angle is the hypotenuse (side c in the figure). Legs are the sides closest to the ideal angle (or catheti, singular: cathetus). The side a that is next to angle B and across from angle A is referred to as side b, and the side a that is next to angle A and across from angle B is referred to as side a.

Right triangles are referred to as Pythagorean triangles and their side lengths as Pythagorean if all three of their sides are integer lengths.

[tex]\sqrt{(12)^2+(5)^2}=13[/tex]

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Answer:

Step-by-step explanation:

disribute it

The pair of triangles is similar with the ASA similarity condition

The figure that completes the question is added as an attachment

From the figure, we have the following properties:

This means that the pair of triangles is similar with the ASA similarity condition.

Since the triangles share the same point

So, the transformation to carry the triangles onto one another is dilation

Hence, the pair of triangles is similar with the ASA similarity condition

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This could be wrong, but I think your answer is [tex]x=-2x^3+\frac{900^{\circ \:}x-360^{\circ \:}}{9}[/tex]

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Hope this helps!

Have a great day and God bless! :)

23$ is the total cost .

What is cost and example?

the total cost = 13$ + 10$= 23$ because he losses a hour in work .

13$ and additionally spending 10$ in carnival .

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Answer:

5x-30

Step-by-step explanation:

x+15+4x-45

5x+14-45

5x-30

The percentage of bags that Kia still has to make for the contest is 36 %.

We are given that:

Kia has to make 14 bags out of 25 bags.

Now, she has already made 5 gift bags.

The number of bags she still has to make = 14 - 5 = 9

Now ,we need to find the percentage of 9 from the total of 25 so to get the percentage of bags that Kia still has to make.

So, we get that:

Percentage = 9 / 25 × 100 %

Percentage = 9 × 4 %

Percentage = 36 %

Therefore, we get that, the percentage of bags that Kia still has to make for the contest is 36 %.

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The identify each representation's associated average rate of change. The average rate of change for the functions r, q, p is 5, 5, 7/3 over the range [0.3].

Given that,

We have to find over the range [0, 3], calculate each function's average rate of change. The identify each representation's associated average rate of change.

The equation for f(x) average's rate of change across [a,b] is

m=[tex]\frac{f(b)-f(a)}{b-a}[/tex]

The function provided is

r(x)=x²+2x-5

r(0)=(0)²+2(0)-5=-5

r(3)=(3)²+2(3)-5=9+6-5=15-5=10

Now,

m₁=[tex]\frac{r(3)-r(0)}{3-0}[/tex]

m₁=[tex]\frac{10+5}{3}[/tex]

m₁=15/3

m₁=5

It is clear from the graph that q(0)=2 and q(1)=3.

Now,

m₂=[tex]\frac{q(1)-q(0)}{1-0}[/tex]

m₂=[tex]\frac{3+2}{1}[/tex]

m₂=5/1

m₂=5

It is evident from the above table that s(0)=-2 and s(3)=5.

Now,

m₃=[tex]\frac{s(3)-s(0)}{3-0}[/tex]

m₃=[tex]\frac{5+2}{3}[/tex]

m₃=7/3

Therefore, The average rate of change for the functions r, q, p is 5, 5, 7/3.

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Answer: B

Step-by-step explanation: you see how its by the 2 that means that its going to be where the 3 is

So the change of rate of x is -1/3 .

The Derivative of a function of a real variable measures the sensitivity to change of the function value with respect to a change in its argument. Derivatives are a fundamental tool of calculus.

Given that object is decreasing at constant rate of 2 units per second so we have [tex]y = 2x^2 + 1[/tex]

[tex]\frac{dy}{dt} = 4x \frac{dx}{dt}[/tex]

given dy/dt = -2

when x = 3/2

-2 = 4(3/2) dx/dt

-2 = 6 dx/dt

dx/dt = -2/6

         = -1/3

Hence the change of rate of x is -1/3 .

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Answer:

The empty set

Step-by-step explanation:

The square of a real number is non-negative, and thus the left hand side is always positive.

Answer:

Bread

Step-by-step explanation:

the cost of 4 dozens of buttons will be $ 6 and the organizers can buy 216 buttons for $ 27.

We are given that:

Cost of 48 buttons = $ 6

48 buttons = $ 6

Divide both sides by 48:

1 button = $ 6 / 48 = $ 1 / 8

Now, the cost of 4 dozen buttons will be:

4 dozen buttons = 12 × 4 = 48

So, the cost will be 4 6 only.

For $ 27, the organizers can buy:

Number of buttons = 27 ÷ 1 / 8

Number of buttons = 27 × 8

Number of buttons = 216 buttons.

Therefore, the cost of 4 dozens of buttons will be $ 6 and the organizers can buy 216 buttons for $ 27.

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Answer:

y   [tex]\leq[/tex] -6.5

Step-by-step explanation:

2(9+y) [tex]\leq[/tex] 5

(distribute)

18 + 2y [tex]\leq[/tex] 5

(isolate variable)

2y  [tex]\leq[/tex] 5 - 18

(simplify)

2y  [tex]\leq[/tex] -13

(isolate variable)

y   [tex]\leq[/tex] -6.5

The Percent Change in the number of cupcakes is 60%

The given parameters are:

Initial number of cupcakes = 70

Final number of cupcakes = 112

The Percent Change in the number of cupcakes:

Percent = (Final number of cupcakes - Initial number of cupcakes)/Initial number of cupcakes  * 100%

This gives

Percent = (112 - 70)/70 * 100%

Evaluate the quotient

So, we have

Percent = 0.6 * 100%

Evaluate the product

So, we have

Percent = 60%

Hence, the Percent Change in the number of cupcakes is 60%

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Answer: .17 m/h

Step-by-step explanation: One centimeter is .01 meters/one hundredth of a meter, so you just need to move the decimal two digits to the right to convert.

In the given statement is:

In simple linear regression the estimated slope from the regression of y on x is the same as the estimated slope in the regression of x on y.

If Y depends on X then the regression line is Y on X.

Y is dependent variable and X is independent variable. If X depends on Y, then regression line is X on Y and X is dependent variable and Y is independent variable. The regression equation Y on X is Y = a + bx, is used to estimate value of Y when X is known.

What is Simple linear regression?

Simple linear regression is a regression model that estimates the relationship between one independent variable and one dependent variable using a straight line. Both variables should be quantitative.

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A researcher can make generalizations about a population by utilizing inferential statistics, which is a benefit.

Two purposes dominate the use of inferential statistics: estimating population numbers (for example, the mean SAT score of all 11th graders in the US). testing hypotheses to make population-level judgments (for example, the relationship between SAT scores and family income).

Inferential statistics that are helpful in the design of experimental and quasi-experimental studies or in the assessment of program outcomes.

When comparing the average performance of two groups on a single measure to check if there is a difference, one of the simplest inferential tests may be performed. You might be interested in learning whether math test results between eighth-grade boys and girls differ or if a program group differs from a control group in terms of the outcome measure.

The t-test for differences between groups should always be taken into consideration when comparing the average performance of two groups.

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Answer:

the standing line is the "Y line"

the line laying down is the "X line"

wherever the line touches on the y and x line is where it intercepts

for the x it intercepts at 25 since it touches the x line between 20 and 30

for the y line it intercepts at - 55 since it touches the y line in between - 50 and - 60

According to the solving the dimensions of the triangles are as follow:

a . 29

b. 58

c. 57

A mathematical space's dimension is defined informally as the smallest number of coordinates required to specify any point within it. Thus, a line has a dimension of one since only one coordinate is required to identify a point on it - for example, the point at 5 on a number line.

2-D shapes really had no thickness and they can only be measured on two sides. Two-dimensional objects include the square, circle, rectangle, and triangle.

x=length of the shortest side

2x=length of another side

x+28=length of the third side

144=x+2x+x+28

144=4x+28

144-28=4x

116=4x

x=116/4

x=29 feet (one side)

Putting the value of x to find second side

2x=58 feet (second side)

x+28= 57 feet (third side)

the perimeter of the triangle = sum of all the sides

                                                = 29+58+57

                                                =144

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Step-by-step explanation:

the slope-intercept form :

y = ax + b

"a" being the slope, "b" being the y-intercept (the y value when x = 0).

but we have the slope and a point.

so, we can start with the point-slope form and then transform it :

y - y1 = a(x - x1)

"a" is again the slope, (x1, y1) is the given point.

so, we have

y - 3 = 4(x - -4) = 4(x + 4) = 4x + 16

y = 4x + 19

and that's it.

Answer:

[14 -4 8]

Step-by-step explanation:

[4+10 -6+2 8+0]

[14 -4 8]

Answer:

84

Step-by-step explanation:

7x5x4x3= 84

Answer: A is the same and equivalent

B is different not equivalent

C is the same and equivalent

Step-by-step explanation:

I'm on Edmund