You need 560 mL of a 70% alcohol olution. On hand, you have a 80% alcohol mixture. How much of the 80% alcohol mixture and pure water will you need to obtain the deired olution?

The examples of functions in real life situation is given below .

In the question,

we have to give few examples for functions in real life .

the term Function is defined as as a relationship between two variables where for every input variable there is one output variable.

the examples are :

Example 1 :

Suppose that a car is driving at a constant speed of 30 mph.

the total distance "d" is equal to the rate, 30 times the time "t" ,that we drive for . the function for the relationship between our distance, d, and the time for driving is

d = f(t) =30 × t  .

Example 2:

Suppose that the cost for 1 bag is $9 , then the function for the cost of "x" bags can be written as

Cost = f(x) = 9x .

Therefore , the real life situations examples are shown above.

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Answer:

175 yards

Step-by-step explanation:

70/2 = 35

35 x 5 = 175

The rate the level in the tank falling when the height of the syrup level is 3 feet is 8/π feet per minute. The result is obtained by using the rate of change concept.

A conical tank containing syrup is draining.

Find the rate of syrup level falling (dh/dt) when h = 3 ft!

See the picture in the attachment!

By the similar triangles, we get

r/h = 2/6

r/h = 1/3

r = 1/3 h

Find the volume of the syrup left at a certain height.

V = 1/3 πr²h

V = 1/3 π(1/3 h)²h

V = 1/3 π(1/9) h² h

V = 1/27 πh³

The rate of syrup level falling is

dV/dt = dV/dh . dh/dt

dV/dt = d/dt [1/27 πh³] . dh/dt

dV/dt = 1/27 π 3h² dh/dt

8 = 1/27 π 3(3)² dh/dt

8 =  π dh/dt

dh/dt = 8/π ft/min

Hence, the rate of syrup level falling is 8/π feet per minute.

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Answer: The answer is A: Brazil

explanation: Brazil already gets imports from Argentina IRL

For the Polynomials to be closed under closure property for the operation of addition if the addition operation produces another polynomial.

Closure property states that when a set of numbers is closed beneath any arithmetic operation such as subtraction, addition, division, and multiplication and is performed on any two numbers of the set with the reply being another number from the set itself. When including polynomials, the factors and their exponents don't alter. As it were their coefficients will possibly alter. This ensures that the sum has factors and exponents which are as of now classified as having a place in polynomials. Polynomials are closed beneath the addition.

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The formula of an equation is a mathematical expression that is used to represent the relationship between two or more variables

It is written in the form of a mathematical statement that expresses the relations between the variables. The equation is written using symbols such as +, -, =, and other mathematical operators to denote the relationships between the variables. The equation can be used to solve problems and to find unknown values. By using the equation, it is possible to determine the values of the unknowns given the values of the knowns. for an example such as x+2=4.

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The standard size of the rectangle's area is x² + 12x + 35

Given:

a diagram that depicts the polynomial that denotes a rectangle's length and width.

The rectangle's area is equal to its length x width.

Given that length is equal to x + 7 and width is equal to x + 5, the area is equal to length plus width.

Add the numbers in brackets: Area = x2 + 5x + 7x + 35

Area = x2 + 12x + 35

A quadrilateral with equal angles and parallel opposite sides is referred to as a rectangle. We are surrounded by numerous rectangular objects. The length and width of a rectangular shape are the two dimensions that define it. The rectangle's length and width are its longer and shorter sides, respectively. We will learn about the properties of the rectangle shape in this chapter.

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Full Question = Express the area of the entire rectangle.

Your answer should be a polynomial in standard form.

x+7 x+5

The zeros of the function, along with their multiplicities and effects, are given as follows:

The zeros of the function are given by the zeros of the linear factors.

The linear factors are given as follows:

Then the zeros are given as follows:

Then the multiplicities are given by the exponents, and the effects are defined according to the multiplicities, as follows:

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The easiest way to solve 4 linear equations is to use the substitution method. This involves substituting the values of one equation into the other equations until you are left with a single equation that can be solved for the remaining variable.

if you have the following four linear equations:

A + B = 10

A - B = 2

A + C = 12

A - C = 3

You can substitute A = 10 - B into the third and fourth equations to get:

10 - B + C = 12

10 - B - C = 3

Then you can add the two equations together and solve for C:

2B + 2C = 15

2C = 15 - 2B

C = (15 - 2B) / 2

Once you have C, you can substitute it into one of the other equations to solve for B:

A + B = 10

A = 10 - C

B = 10 - (15 - 2B) / 2

B = 5 - (15 - 2B) / 2

2B = 10 - 15

2B = -5

B = -2.5

Now you have both B

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Answer:

Could you please explain your question with proper English?

Step-by-step explanation:

Thank you.

Answer:

0

Step-by-step explanation:

The formula to find slope is:

plug in both set of parenthesis into the equation

m = 5-5 / -1 - 2

Solve numerator (top) and denominator (bottom)

m = 0 / -3

Solve, 0 divided by -3

=0

Answer:

all integers greater than or equal to 11

A word is put between to and the verb while splitting an  infinitive. In terms of grammar, splitting an infinitive is acceptable.

In other cases, it might even be more logical to do so. An infinitive is a verb's to form, such as "to go" or "to be."

When it is said that infinitives should never be split, it means an adverb should never come before the verb in the sentence "to confidently proceed."

As we know  split infinitive is one in which the word "to" and the verb in the base (infinitive) form of the verb are separated by one or more words.

Adverbs are the words that split infinitives the most frequently.

Example,

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Answer:

Step-by-step explanation:

urmom

Answer: B they are parallel

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Lines that are both perpendicular to a given line are parallel.

y=-3/4x-9/2 is the equation of a line that goes through both transformed points.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

we must translate the given point (x,y) into the translation given. We begin with the 90 degree clockwise rotation such that

90 degree clockwise rotation = (x, y) => (y, -x)

we translate the coordinate (y, -x)

2 units to the right such that

(y-4, -x - 2)

So the coordinate of points changed (1,2) and (-4,6) from (-2, -3) and (2, -6)

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

m=-3/4

Now let us find the y intercept.

-3=-3/4(-2)+b

-3=3/2+b

-3-3/2=b

-9/2=b

Hence, y=-3/4x-9/2 is the equation of a line that goes through both transformed points.

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If the radius of the base of a cone is decreasing at rate of 2 cm/minute and the height is kept constant at 9 cm, the rate of change of the volume at radius 13 cm is 489.4 cm³/minute

To calculate the rate of change, we need to take the derivative of the variables with respect to time.

The volume of a cone is given by:

V = 1/3 . πr²h

Where:

r = radius of the base

h = height

Since the height of the cone is held constant, then the derivative with respect to time is:

dV/dt = 1/3 h. 2πr dr/dt

Parameters given:

dr/dt = 2 cm/minute

h = 9 cm

r = 13 cm

Hence,

dV/dt = 1/3 x 9 x 2π x 13 x 2

dV/dt = 489.4 cm³/minute

Hence, at radius 13 cm, the rate of change of the volume is 489.4 cm³/minute

It looks like there was typos in your question, most probably your question was:

The radius of the base of a cone is decreasing at a rate of 2 centimeters per minute. The height of the cone is fixed at 9 centimeters. At a certain instant, the radius is 13 centimeters. What is the rate of change of the volume of the cone at that instant (in cubic centimeters per minute)?

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The approximate number of price increases needed to maximize profit is 2.5

From the question, we have the following parameters that can be used in our computation:

x = number of price increases

y = Profit

Also from the question, we have

Begins at (0, 50)

Increases to (2.5, 81.25)

Decrease through (6.531, 0)

This means that

Maximum = (2.5, 81.25)

Recall that

x = number of price increases

So, we have

x = 2.5

Hence, the number of price increases is 2.5

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Answer:42/5.

21*8=168

4*5=20

168 divided by 20 is 8.4 which is 42/5

As per the given correlation, the appropriate null and alternative hypothesis for calculating number of goggles is

H0 : No linear relation

H1 : there is a relation

What is meant by correlation?

In math, correlation is referred as a statistical measure that expresses the extent to which two variables are linearly related (meaning they change together at a constant rate).

And it is a common tool for describing simple relationships without making a statement about cause and effect.

Based on the given question, a group of scientist randomly selected 20 piknits from the sea-floor and measured their respective weights in grams.

And we also know that, they wanted to know if the weight of the piknits can be used to predict the number of gogles.

Here from the given information, the null hypothesis : H0 : There is no linear relationship between the weight of piknits and the number of goggles

And the Alternative hypothesis : Ha: There is a linear relationship between the weight of piknits and the number of gogles

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Answer: c = -14 over 3 (c = -14/3)

Step-by-step explanation:

1. Distribute: 5c + 4 = 2(c - 5) --> 5c + 4 = 2c - 10

2. Subtract 4 From Both Sides: 5c + 4 = 2c - 10 --> 5c + 4 - 4 = 2c - 10 - 4

3. Simplify: 5c = 2c - 14

4. Subtract 2c From both sides: 5c = 2c - 14 --> 5c - 2c = 2c - 14 - 2c

5. Simplify: 3c = 14

6. Divide Both Sides By The Same Factor: 3c divided by 3 = -14 divided by 3

7. Simplify: c = -14 over 3

120120 Different number of arrangements can be made.

7 identical stuffed dogs

4 identical stuffed cats

3 identical stuffed teddy bears

Total number of objects a toy store managers want

to display = 14.

We know formula to arrange n objects in which p are identical:

There are n!/p! ways to arrange n objects in a row, and p of those ways are exactly the same.

Similarly for this problem we can say:

Different number of arrangements possible.

Here in this question value of n =14 total number of objects.

Total number of arrangements possible for 14 objects is 14! but some objects are duplicate that may be counted more than ones so we have to divide them.

number of arrangements = 14!/ (7!*4!*3!).

by solving this we get

number of arrangements = 120120.

So we can say 120120 Different number of arrangements can be made.

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Triangles can be proven congruent by using the congruency theorems - SSS, SAS, ASA, and AAS.

Congruency is shown by the sign (≅). It is when the given figures have the same shape and size.  

To prove that the given triangles are congruent there are some rules, one of which it must satisfy in order to prove its congruency. The theorems are stated below-

SSS rule: if 3 sides of the given triangles are equal, then the triangles are congruent.

SAS rule: if 2 sides and an angle of the given triangles are equal, then the triangles are congruent.

ASA rule: if 2 angles and a side (in the middle of the angles)of the given triangles are equal, then the triangles are congruent.

AAS rule: if 2 angles and a side(adjacent to the angles) of the given triangles are equal, then the triangles are congruent.

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Answer:

31.992 dollars

Step-by-step explanation:

39.99 times 80%

=31.992

The equation of the curve that passes through the point (0, 1) and whose slope at (x, y) is 5xy is [tex]e^{\frac{5x^2}{2} }[/tex] .

The slope of the curve is 5xy.

Therefore:

dy/dx =  5xy

dy/y = (5x)dx

Then,

The integrate both sides giving us

ln(y) = (15x²)/2 + C

Since, the curve passes through (0,1) .

Therefore, x=0 and y=1 for solving 2

ln(1) = 0/2 + C

0 = 0 + C

⇒ C = 0

We now,

substitute C back in and isolate y

ln(y) = (15x²)/2

⇒ y = e(15x²) / 2

Therefore, The answer is y = [tex]e^{\frac{5x^2}{2} }[/tex]

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Answer:

The last graph that is a straight line represents y as a function of x

Step-by-step explanation:

In order for a graph to be considered a function, it can't intercept the same value twice. To test this, use the vertical line test to see if the graph hits the line twice. If it does, then it is not a function. But if the line hits the graph only once, then it is a function.

The constant of proportionality in this proportional relationship is (D) 5/12.

The ratio connecting two given numbers in what is known as a proportional relationship is the constant of proportionality.

Constant ratio, constant rate, unit rate, constant of variation, and even rate of change are other names for the constant of proportionality.

So, the constant of proportionality formula:

y = kx ⇒ k = y/x

Now, calculate as follows:

(A)

k  = y/x

k = 5/6 / 2

k = 5/6 * 1/5

k = 5/12

(B)

k  = y/x

k = 5/3 / 4

k = 5/3 * 1/4

k = 5/12

Similarly, we can say that (C) and (D) will also be k = 5/12.

Therefore, the constant of proportionality in this proportional relationship is (D) 5/12.

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Complete question:
What is the constant of proportionality in this proportional relationship?

x 2 4 6 8

y 5/6 1 2/3 2 1/2 3 1/3

Responses

a. 12

b. 5

c. 12/5

d.5/12

Answer:

it is 9

Step-by-step explanation:

8 feets will the bottom of the ladder slip.

What is pythagora's theorem?

In ΔABC

AC² = AB² - BC² (∴Pythagoras theorem)

AC = √25² - 7²

AC = √625 - 49

AC = √576

AC = 24 feet

As after sliping length of ladder remains same ⇒ DE = 25 feet and feet 4 feet.

Let say x be the length of how much the ladder slips.

New height = DC = AC - AD = 20 feet

EC = (x + 7 ) feet

In ΔDEC,

DE² = DC² + EC²  (∴Pythagoras theorem)

25² = 20² + (x + 7)²

(x + 7)² = 225

x + 7 = 15

(∵ x+7)>0, We can't take negative value)

x = 8 feet

Hence, 8 feets will the bottom of the ladder slip.

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