a spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.2 cm/min. at what rate is the volume of the snowball decreasing when the diameter is 8 cm

With the help of unitary method , we can say that ,To create a batch of 15%-pigment paint, he needs to mix 98.57 liters of the 27%-pigment paint with the 12%-pigment paint.

Area is the total amount of space that an object's shape or a flat (2-D) surface occupy.

Create a square on paper by using a pencil. Two dimensions make it up. A shape's area on paper is the space it takes up.

Imagine that your square is made up of smaller unit squares.

The area of a figure is equal to the number of unit squares required to completely cover the surface area of a particular 2-D shape. Square cms, square feet, square inches, square meters, etc. are a few common units for measuring area.

To get the area of the square figures presented below, draw unit squares with 1-centimeter sides. Therefore, the shape will be measured.

According to our question-

Paint volume times pigment concentration equals pigment amount.

or

V × c = P

If the three options are referred to as 1, 2, and 3, then

P₁ + P₂ = P₃

V1c1 = V2c2 + V3c3

Let x equal the paint's 11% volume.

Then

230 × 21 % + x × 11 % = (230 +x) × 18 %

Add 4830 plus 11x to get 4140 plus 18x, then take 4140 away from each side.

690 + 11x = 18x Take 11 times off of each side.

Divide each side of 690 by 7 to get the answer.

x = 98.57 L

The worker needs to add 98.57 L of the paint with a 21% pigment.

learn more about unitary method click here:

brainly.com/question/24587372

#SPJ4

Answer:

5r

Step-by-step explanation:

r+r+r+r+r=5r

The probability that one of the first five customers agrees to take the survey is 71%

Here we have to use binomial distribution.

What is binomial distribution?

A common probability distribution known as the binomial distribution simulates the likelihood of getting one of two outcomes given a set of parameters. It provides a summary of the number of trials when each trial has an equal chance of producing a particular result.

A binomial distribution with the following formula could be used to represent the proportion of clients who agree to participate in the survey out of 5:

X ~ Bin (n = 5, p = 0.22)

Thus the probability is computed as:

P(X >= 1) = 1 - P(X = 0) = [tex]1 - (1-0.22)^5[/tex]

= 0.71

The required probability in this case is therefore 71%.

To know more about probability, here

https://brainly.com/question/11234923

#SPJ4

The largest possible value for the decimal $a. B + c. D$  us:

9.7 + 8.6 which results to 18.3.

Given that a, b, c, and d are different numbers (from 1 to 9), we are to find the largest possible value of a.b + c.d.

This problem can be answered by trial and error and with some logic. Clearly, a to d cannot be at the lower end of the values (1 to 5). Since the digits must be different, it can be a combination of digits from 6 to 9.

It is rather tempting to say that the 9.8 + 7.6 would yield the highest possible sum (=17.4) but this is incorrect. Since it is the sum of two numbers with a decimal, we have to maximize on the ones digit first before maximizing the tenths digit. Therefore: the combination of numbers must then be:

9.7 + 8.6 which results to 18.3

9.6 + 8.7 yields 18.3 as well.

Hence we get the required answer,

Learn more about Decimals here:

brainly.com/question/28416295

#SPJ4

Answer:To help read it step by step until you understand trust me you will get it!

Step-by-step explanation:

The total volume of the ice cream in and on top of the cone is (16/3)πd³.

It is a shape of a Christmas tree where there is a base of radius r and a top point called the apex.

The volume of a cone is 1/3 πr²h.

We have,

Volume of the hemisphere = 4 in³

The volume of ice cream.

= Volume of the hemisphere + Volume of the cone

= 4 + (1/3)π(d/2)²h

[ height = diameter ]

= 4 + (1/3) x π x d²/4 x d

= 4 + (1/3) x π x d³/4

= 4 + (4/3)πd³

= (16/3)πd³

Thus,

The volume of the ice cream is (16/3)πd³.

Learn more about cones here:

https://brainly.com/question/13798146

#SPJ2

The radius of the circle  with arc length of 2.4 and subtended angle at the center, 7.1 radians is 0.3

The arc of a circle is defined as the part or segment of the circumference of a circle. A straight line that could be drawn by connecting the two ends of the arc is known as a chord of a circle. If the length of an arc is exactly half of the circle, it is known as a semicircular arc.

length of arc = 2.4

if 7.1 rad is the angle subtended by the intercepts of the arc

But [tex]\pi[/tex] rad = 180°

so 7.1 rad in degree = [tex]\frac{7.1}{\pi }[/tex] x 180  which is [tex](\frac{1278}{\pi } )^{} }[/tex] degree which is [tex]\alpha[/tex]

Length of an arc = [tex]\frac{\alpha }{360} * 2\pi r[/tex]

2.4 =  [tex](\frac{1278}{\pi } )^{} }[/tex] x [tex]\frac{1}{360}[/tex] x 2 x [tex]\pi[/tex] x r

The equation reduces to

2.4 = 7.1r

r = 2.4 ÷ 7.1

r = 0.334 which is 0.3

In conclusion the radius of the circle is 0.3

Learn more about circles: https://brainly.com/quesion/24375372

#SPJ1

Answer:y2-y1/x2-x1

Step-by-step explanation:

The formula for rise over run or slope is y2-y1 divided by x2-x1

An example

(5,4),(3,7)

y2=7,y1=4

x2=3,x1=5

plug in and solve

7-4/3-5

slope would be -1

Part a: Ignoring those that are bigger than 4.

Part b: labeling the random number.

Part c: conclusion, Claire should plan to purchase 12 boxes.

Part a: random number table;

Part b: labeling the random number.

7318495907 05179 51002(10 boxes) 8337452297 07769 99792 78365 9348772753 36216 (15 boxes) 07230 35793 71907 65571 66784(10 boxes) 25548 91861 15725.

Part c: conclusion,

On average, Claire should plan to purchase 12 boxes.

To know more about the random number table, here

https://brainly.com/question/11809277

#SPJ4

The mean median mode of the data 9,10,9,9,11,9,10,9,9,10 is

Mean =9.5

Median = 11 or 9

Mode is 9

Given that,

The data is 9,10,9,9,11,9,10,9,9,10

The data's mean, median, and mode must be determined.

We know that,

The arithmetic mean of the provided data is another name for mean. If the data are grouped and sorted in ascending order, the median is the value that falls in the middle of the set of grouped data. The value that dominates the data is known as the mode. The Mean, Median, and Mode formulas are described independently for the group of data in the sections that follow.

The data is 9,10,9,9,11,9,10,9,9,10

Mean = 9+10+9+9+11+9+10+9+9+10/10 =95/10=9.5

Median = 11 or 9

Mode is 9

Therefore, The mean median mode of the data 9,10,9,9,11,9,10,9,9,10 is

Mean =9.5

Median = 11 or 9

Mode is 9

To learn more about mode visit: https://brainly.com/question/15323584

#SPJ4

The FALSE condition for the given inequality 3(n−6)<2(n+12) is (D) S:{42}.

An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way.

The majority of the time, size comparisons between two numbers on the number line are made.

So, we have the inequality: 3(n − 6) < 2(n + 12)

Now, verify the false inequality as follows:

(A) S:{−5}

3(n − 6) < 2(n + 12)

3(-5 − 6) < 2(-5 + 12)

3(-11) < 2(7)

-33 < 14: TRUE

(B) S:{3}

3(n − 6) < 2(n + 12)

3(3 − 6) < 2(3 + 12)

3(-3) < 2(15)

-9 < 30: TRUE

(C) S:{12}

3(n − 6) < 2(n + 12)

3(12 − 6) < 2(12 + 12)

3(6) < 2(24)

18 < 48: TRUE

(D) S:{42}

3(n − 6) < 2(n + 12)

3(42 − 6) < 2(42 + 12)

3(36) < 2(54)

108 + 108: FALSE

Therefore, the FALSE condition for the given inequality 3(n−6)<2(n+12) is (D) S:{42}.

Know more about inequality here:

https://brainly.com/question/28964520

#SPJ4

Correct question:

Given the inequality 3(n − 6) < 2(n + 12), determine which integer makes the inequality false.

a. S:{−5}

b. S:{3}

c. S:{12}

d. S:{42}

The slope and y-intercept of the given equations of line are shown below.

When any equation is represented in the y = mx +c form, it is called the slope intercept from of the equation.

Here m is slope and c is constant.

(1)

y = 3x + 3

Slope m = 3

y intercept, at x =0,

y = 3

(2)

y = 3x - 3

Slope m = 3

y intercept, at x =0,

y = - 3

(3)

y = (1/3)x + 3

Slope m = 1/3

y intercept, at x =0,

y = 3

(4)

y = -(1/3)x + 3

Slope m = -1/3

y intercept, at x =0,

y = 3

(5)

y = (1/3)x - 3

Slope m = 1/3

y intercept, at x =0,

y = -3

(6)

y = -(1/3)x - 3

Slope m = -1/3

y intercept, at x =0,

y = -3

(7)

y = -3x + 3

Slope m = -3

y intercept, at x =0,

y = 3

(8)

y = -3x - 3

Slope m = -3

y intercept, at x =0,

y = - 3

The slope and y-intercept are shown above.

To know more about Slope intercept form :

https://brainly.com/question/9682526

#SPJ1

For the two lines to be parallel, the value of n must be 3

When two straight lines are plotted on the coordinate plane, we can tell if they are parallel from the slope, of each line. If the slopes are the same then the lines are parallel.

The slope of each line is calculated as (y2-y1)/x2-x1

for line AB, the slope = (6n-n)/10-4 = 5n/6

for line CD, the slope= 8n-(-6)/9-(-3)=( 8n+6)/12

for AB and CD to be parallel,

5n/6 = (8n+6)/12

multiply both sides by 12

10n= 8n+6

collect like terms

10n-8n= 6

2n= 6

n= 6/2= 3

therefore for the value of n= 3 line CD and AB are parallel.

learn more about parallel lines from

https://brainly.com/question/24607467

#SPJ1

Answer: 36, 42, 78

Step-by-step explanation:

20 is only divisible by 2
50 is only divisible by 2
45 is only divisible by 3
36/2=18 36/3=12
42/2=21 42/3=14
78/2=39 78/3=26

Answer: 36, 42, 78

Step-by-step explanation:

36/2= 15, 36/3=12

42/2= 21, 42/3=14

78/2=39, 78/3=39

The number of tickets that they give away to employees is 33.

An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenarios.

Let the number of employees be x

Therefore, number of listener = 5x

Total number of people = 198

Therefore, this will be illustrated thus:

x + 5x = 198

6x = 198

Divide

x = 198/6

x = 33

Therefore 33 tickets are given to employees.

Learn more about equations on:

brainly.com/question/2972832

#SPJ1

The mean service time from the ​customers are between 161.5 to 164.7 seconds.

The trade magazine QSR routinely checks the​ drive-through service times of​ fast-food restaurants.

A 90% confidence interval that results from examining 607 customers in Taco Bell's drive-through has a lower bound of 161.5 seconds and an upper bound of 164.7 seconds.

Let's denote the mean service time by μ. Then, note that, we are given that n=607. Also, we are said that a 90% CI for μ is given by

(161.5,164.7)

This implies that we are 90% confident that μ lies in the interval. Or to be precise, this interval is a realization of a random interval that has 90% probability of covering the true mean. Thus, we are 90% confident that the mean service times of the restaurants are between 161.5 to 164.7 seconds.

Hence the answer is The mean service time from the ​customers are between 161.5 to 164.7 seconds.

To learn more about mean click here https://brainly.com/question/1136789

#SPJ4

Answer:

p represents the original per pound price

3p represents the cost of three pounds

3p + 3(0.75) = 5.88           multiply

3p + 2.25 = 5.88               subtract 2.55 from both sides

3p = 3.63                          divide both sidesby 3

p = 1.21

The original price was $1.21 per pound.

1.21 = 0.75

1.96

3(1.96)

5.88

The confidence interval for a proportion should be constructed since the variable of interest is a person's opinion, which is a qualitative variable.

A trait that cannot be quantified is referred to as a categorical variable (also known as a qualitative variable).

Nominal or ordinal categorical variables are also acceptable.

Since the variable of interest is a person's opinion, which is a qualitative variable, the confidence interval for a proportion should be built.

Statistical Variables Qualitative variables also referred to as categorical variables are variables without a built-in sense of hierarchy.

As a result, they are quantified using a nominal scale.

For instance, a qualitative variable is a name as well as hair color (Black, Brown, Gray, Red, Yellow).

Therefore, the confidence interval for a proportion should be constructed since the variable of interest is a person's opinion, which is a qualitative variable.

Know more about qualitative variables here:

https://brainly.com/question/14037311

#SPJ4

Hence, the indicated side hypotenuse is [tex]46[/tex].

What is the angle?

Angles are an integral facet in the study of mathematics, particularly geometry. Angles are formed by two rays (or lines) that begin at the same point or share the same endpoint. The point at which the two rays meet (intersect) is called the vertex.

Let us assume the angle name [tex]x[/tex] and  the triangle [tex]ABC[/tex], and the hypotenuse is [tex]y[/tex].

Here given angle and side are

[tex]x=30[/tex] degree

And the side [tex]AB=23[/tex]

Now we are applying the [tex]sine[/tex] because it is

[tex]sinx=\frac{P}{H}[/tex]

So,

[tex]sin(30)=\frac{23}{y}\\\\\frac{1}{2}=\frac{23}{y}\\\\y=46[/tex]

Hence, the indicated side hypotenuse is [tex]46[/tex].

To know more about the angles

https://brainly.com/question/15277238

#SPJ1

Answer:

f(4)= 45

Step-by-step explanation:

f(x)=3x^2-3. (1)

f(4)=?

so we have to put x=4 in equation (1)

we get

f(4)=3[(4)^2]-3

f(4) =3(16)-3

f(4)= 48-3

f(4)= 45 Answer...

Answer:

Step-by-step explanation:

fx+35+lovebased2=94

Answer:

Step-by-step explanation:

Answer:

Yes, the point (-7, 5) satisfies the inequality y > -3/7x + 2

Step-by-step explanation:

Plug in the values to the inequality and verify if it is true:

x = -7, y = 5

5 > (-3/7*-7) + 2

5 > (-3/-49) + 2

5 > 3/49 + 2

5 > 101/49

The inequality above is true (5 is greater than 101/49 [101/49 is about 2.06]), so the point (-7, 5) satisfies y > -3/7x + 2

if a statistician decides to construct using 90 percent C I over a 95% C I, it tells you that you have 10% chance of being wrong rather than 5% chance of being wrong while using the 95%.

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

A confidence interval is a range that shows how precise the measurement is.

if a statistician decides to construct using 90 percent C I over a 95% C I, it tells you that you have 10% chance of being wrong rather than 5% chance of being wrong while using the 95%.

Also a 90 percent confidence interval would be narrower than a 95 percent confidence interval

To Learn more about the percentage form the link:

brainly.com/question/8011401

#SPJ4

The percentage of water in the milk cup and the percentage of milk in the water cup are same.

What is milk?

A white liquid meal called milk is generated by mammals' mammary glands. Before they can digest solid food, it is the main source of nutrition for young mammals. Milk immunity is influenced by immune components and immune-modulating elements.

Given:

There are a cup of milk and a cup of water.

Take one teaspoon of milk, put into the water cup; mix well.

Take one teaspoon of the mixture in the water cup and put into the milk cup then mix well.

Suppose the percentage of water cup are 'p' and the percentage of milk cup are 'q'.

When we add one teaspoon of milk and put into water cup then the percentage of water cup are 'p + 1'.

And the percentage of milk cup are 'q - 1'.

Again one teaspoon of mixture in the water cup put into the milk cup.

So, the percentage of milk cup are, q - 1 + 1 = q.

And the percentage of water cup are p + 1 - 1 = p.

The percentage will be same for both milk cup and water cup.

Hence, the percentage of water in the milk cup and the percentage of milk in the water cup are same.

To know more about milk, click on the link

https://brainly.com/question/210119

#SPJ4

Answer:

19

Step-by-step explanation:

3^2+3+7

9+3+7

12+7

19

Hopes this helps please mark brainliest

Answer: $38.50 per month

Step-by-step explanation: We have to find 10% of 35 and add it to 35. This is because 10% of 35 is the amount that will increase so adding that to the original 35 will be her new premium. 10% of 35 is $3.50 and $3.50 + $35 is $38.50. This means her new premium is $38.50 per month.

Answer:

The answer is 1902

Step-by-step explanation: You use pemdas. First you ansewer whats in the parentheses then exponents then add

Answer:

1902

Step-by-step explanation:

10^2= 100

9+10= 19

2+100(19) 19*100=1900 and then add 2 to get 1902

The required solution to the trigonometry equation is x = π/4 + π n.

The equation of trigonometry functions is given in the question as

secx - cscx = 0

We have to determine the solution to the given equation

As per the question, we have

⇒ secx - cscx = 0

⇒ 1/cosx - 1/sinx = 0

⇒ (-cosx + sinx)/cosxsinx = 0

Using property : f(x)/g(x) = 0 ⇒ f(x) = 0

⇒ -cosx + sinx = 0

Divided by cosx into the equation,

⇒ -1 + tanx = 0

⇒ tanx  = 1

The general solution for tan tanx  = 1 is

⇒ x = π/4 + π n

Learn more about Trigonometric functions here:

brainly.com/question/6904750

#SPJ1