2. Calculate each surface area to the nearest tenth of a square centimetre ) r = 10 cm b) a) d=7 cm 30 cm 22 cm 3. bbelow 1

For 1 cup of blue paint, 1/4 cups of black paint is needed

The given parameters are

8 cups of blue paint needed for 2 cups of black paint

This means that

8 cups of blue paint needed = 2 cups of black paint

Divide both sides of the equation by 8

So, we have the following equation

8/8 cups of blue paint needed = 2/8 cups of black paint

Evaluate the quotient

So, we have the following equation

1 cup of blue paint needed = 1/4 cups of black paint

Hence, the amount of black paint is 1/4

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A function that models the population of 400 birds decreasing at an annual rate of 6% is  [tex]f(x) = 400(1 - 0.06)^{t}[/tex] where t is the time period.

The Exponential decay formula aids in determining the quick decrease over time, i.e. the exponential decrease. The exponential decay formula is used to calculate population decay, half-life, radioactivity decay, and so on.

Its general form is f(x) = a (1 - r)ⁿ.

Where a = the initial amount

1 - r = decay factor and n = time period.

Given:

The initial population of birds, P = 400

Rate of decay, r = 6% = 0.06

Time = t years

By using the exponential decay formula,we get

[tex]f(x) = P (1 - r)^{t}[/tex]

[tex]f(x) = 400(1 - 0.06)^{t}[/tex]

Therefore, the function that models the population of 400 birds decreased at an annual rate of 6% is  [tex]f(x) = 400(1 - 0.06)^{t}[/tex].

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Answer:

-1, 1, and 2

Step-by-step explanation:

[tex]x^3 - 2x^2 - x+2=0 \\ \\ x^2(x-2)-(x-2)=0 \\ \\ (x^2-1)(x-2)=0 \\ \\ (x-1)(x+1)(x-2)=0 \\ \\ x=-1, 1, 2[/tex]

we have 60 balloons

black balloons are =4/12*60

and that is =20 black balloons

red balloons= 3/12*60=5*3=15

the rest are white

white balloons= 60- 20 black-15 red=25 white balloons

SOLUTION

We want to find the distance that the top edge of the calendar is from the ceiling.

The diagram below will help us

From the diagram above x is the distance we want to find

We can see that the entire wall is 9 ft long,

Distance from the foot of the calender to the floor is 5 1/4 ft and

Halve of the calendar is 2/3 ft

So the whole calendar is

So, to find x, we will add length of the calendar which is 4/3 ft to distance from the foot of the calender to the floor which is 5 1/4 ft and subtract this from height of the wall which is 9 ft

We have

Hence the answer is

The solution of a system is the point where the lines described by the equations of the system intersect, If a system has no solution, it is said to be inconsistent, In this case, both lines have the same slope (-3/2) which means that they are parallel each other, then they will never intersect, and the system has no solution and is inconsistent

The total money would Caleb have to pay for his family if he were to buy 5 snacks for everybody to share is;

We are told that the cost of each movie ticket is $13. Now, if he buys one movie ticket for his 3 kids, then total he would pay for the 3 kids and himself is;

13 * 4 = $52

Now, an assortment of snacks available to purchase for $3.50 each. Thus, if Caleb buys 5 snacks, then it means that;

Cost of the 5 snacks = 3.5 * 15 = $16.5

Total paid = $52 + $16.5

= $67.5

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Given:

The vertices are P (-4, -5), L (1, -7), and K (-9, 8).

The vector is < -6,3 >.

Aim:

We need to find the image of the vertices when translating given vertices along the vector.

Explanation:

The translation vector <-6,3> means each point is being moved 6 units to the left and 3 units up.

For each vertex, we subtract 6 from each x value and add 3 to each y value.

Final answer:

Given:

Cone with diameter of 14 ft, and height of 4 ft.

First, determine the radius of the cone, by dividing the diameter by 2.

Now that we have the radius, substitute π = 3, r = 7 ft, and h = 4 ft to the formula of the volume of the cone.

The vertex and range of this absolute value function is: Vertex (0, 4), Range: {y | 0 ≤ y < ∞}.

An absolute value function can be defined as a type of function that consist of an algebraic expression, which is placed within absolute value symbols.

Mathematically, the standard form of the equation for an absolute value function is given by:

y = a|x - h| +k.

Where:

h and k are the vertex of the graph.

Furthermore, an absolute value function is defined by this piecewise rule, especially based on its input:

In conclusion, the vertex or turning point of this absolute value function in the table above is at (0, 4).

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Answer:

Vertex (0, 4), Range: {y | 0 ≤ y < ∞}.

Step-by-step explanation:

To find f(4) you substitute the x in the given equation for 4:

Answer:

9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

This problem comes straight from a standardized test given in New York in 2014.

The height of the water increasing at a rate of 0.05 m/min

The Volume of a cylinder is

[tex]V = \pi r^{2}h[/tex]

where r is the radius and h is the height of the cylinder.

Given that the radius r of cylinder is 5m and the water is filled at the rate of 4 [tex]m^{3} /min[/tex]

[tex]V = 25\pi h[/tex]             ...(1)

Now, differentiating (1) with respect to time t,

[tex]\frac{dV}{dt} = 25\pi \frac{dh}{dt}[/tex]

Substituting the value of    [tex]\frac{dV}{dt}[/tex]

4 = [tex]25\pi \frac{dh}{dt}[/tex]

[tex]\frac{dh}{dt}[/tex] = [tex]\frac{4}{25\pi }[/tex]

[tex]\frac{dh}{dt}[/tex] = 0.05 m/min

Hence, the water is increasing at the rate of 0.05 m/min

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Answer:

20 miles

Step-by-step explanation:

If it is two miles each way, then he rides a total of 4 miles every day.

Multiply 4 by 5

4 x 5 = 20

20 miles

Answer:

20 miles

Step-by-step explanation:

he always goes to school and comes back, to that means each day where he goes to school he rides 4 miles each time.

if he does this for 5 days you can write the following:

4*5 = 20 or if you haven't learned multiplication you can think of it like this:

4+4+4+4+4= 20

The three consecutive integers according to the expression will be 6, 8, 10

In the given question, there is an expression stated that tells the condition for a sequence in which a number is represented by 'n'. The expression is the sum of three even integers whose sum is equal to four times the smallest of numbers.

The expression is n + (n + 2) + (n + 4) = 4n. We have to find out the values for each of the numbers.

Here, First Number = n

Second number = (n + 2)

Third Number = (n + 4)

Now, We will calculate the given expression to find out the value of n.

=> n + (n + 2) + (n + 4) = 4n

=> 3n + 6 = 4n

=> n = 6

We get the smallest number n = 6 which is the first number, the second number is 8, and the third number is 10.

Hence, the numbers are 6, 8, and 10.

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Given that 1kg=2.2 pound, also there is 14 pounds in 1 stone

There are 9 stones totally,so totally 9 stones will have 405 pounds

To convert into kilogram to should divide pounds by 2.2

Thus 183.705 is the required answer.

To find how many Costco employees are, we can use the formula of

Answer:

4 to the 9th power :D

Step-by-step explanation:

Please Brainliest

Step-by-step explanation:

probabilities are always

desired cases / totally possible cases

24 cans in total, 4 of them are diet, therefore 20 of them are regular.

2 cans are picked.

for the first can

the probability to pick a diet can is

4/24 = 1/6

the probability to pick a regular is

20/24 = 5/6

a)

to pick 2 diets, the first one has to be diet.

that leaves 23 cans with 3 being diet.

so, the probability for the second can being diet too is

3/23.

as combined event the probability to pull 2 diet cans is

1/6 × 3/23 = 1/2 × 1/23 = 1/46 = 0.02173913...

≈ 0.0217

b)

now the same for picking 2 regular cans.

the first one has to be regular :

5/6

that leaves for the second one 23 cans and 19 of them regular

19/23

combined this gives the probability

5/6 × 19/23 = 95/138 = 0.688405797...

≈ 0.6884

this is not unusual.

what would be considered "usual" or "unusual" ?

c)

one of them is diet, and one of them is regular.

the simple answer ?

it is the only other option, when the cans are not of the same type. it is the opposite of the sum of a) and b).

so, it is

1 - 0.688405797... - 0.02173913 = 0.289855072...

≈ 0.2899

but what to do, if we want to calculate it directly ?

it is the case that either

1. the first can is diet and the second can is regular,

or

2. the first can is regular and the second can is diet.

case 1.

the first can is diet = 1/6

leaving 23 cans with 20 being regular

the second can being regular = 20/23

together

1/6 × 20/23 = 1/3 × 10/23 = 10/69 = 0.144927536...

case 2.

the first can is regular = 5/6

leaving 23 cans with 4 diets.

the second can being diet = 4/23

together

5/6 × 4/23 = 5/3 × 2/23 = 10/69 = 0.144927536...

in an "exclusive or" situation we can add the probabilities.

so, the probability of having exactly one can diet and exactly one can regular is

0.144927536... + 0.144927536... = 0.289855072...

≈ 0.2899

we were correct in the first place !

ANSWER

0.01175 metres

EXPLANATION

We want to find how many metres are in 11.75 millimetres.

There are 1000 millimeters in 1 meter:

We will simply divide 11.75 milimetres by 1000

1000 millimetres = 1 metre

Check the picture below.

The value of the missing angles are; m∠ABC = 36° and m∠DBC = 41°

We are given that;

m∠ABD = 77°

Addition angle postulate states that the sum of two adjacent angle measures will equal the angle measure of the larger angle that they form together.

Now, by addition angle postulate, we can say that;

m∠ABC + m∠DBC = 77°

Now, we are given that;

m∠ABC = (5x - 4)°

m∠DBC = (5x + 1)°

Thus, by substitution property, we have;

(5x - 4)° + (5x + 1)° = 77

10x - 3 = 77

10x = 77 + 3

10x = 80

x = 8

Thus;

m∠ABC = (5(8) - 4)°

m∠ABC = 36°

m∠DBC = (5(8) + 1)°

m∠DBC = 41°

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The following are the reasons for sampling:

1. To bring the population to a manageable number

2. To reduce cost

3. To help in minimizing error from the despondence due to large number in the population

4. Sampling helps the researcher to meetup with the challenge of time.

Therefore, the answer is:

c. Sampling is so easy.

Here, we want to solve find the value of the expression

We start by opening up the brackets and then, we bring together like terms

We have this as;

The factors of the expression 3xy/4 are 3/4, -1, x and y.

According to the question,

We have the following expression:

3xy/4

Now, we know that when we say factors of an expression then it means that we are talking about numbers or variables which can divide the given expression.

(For example, the factors of 24xy are 24 and the factors of 24 which are 1,2,4,6 including the two variables x and y.)

So, in this case, we will separate each number and variable to find the factors of the given expression:

3/4, x and y and -1

Hence, the factors of the expression 3xy/4 are 3/4, -1, x and y.

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The simplified expression of the fraction expression is (b) One group of 4/6, with 1/6 remaining.

The fraction expression is given as

ten StartFraction 1 Over 12 EndFraction bars.

Rewrite the fraction properly

So, we have

Ten 1/12 bars

This can be represented as

10 * 1/12

Rewrite 10 as 10/1

So, we have the following equation

10 * 1/12 = 10/1 * 1/12

Evaluate the products of the numerator

So, we have the following equation

10 * 1/12 = 1/1 * 10/12

Evaluate the products of the denominator

So, we have the following equation

10 * 1/12 = 10/12

Simplify the fraction

10 * 1/12 = 5/6

Split the fraction

10 * 1/12 = 4/6 + 1/6

This means that, the result is

Quotient = 4/6 and remainder = 1/6

Hence, the true statement about the fraction is (b)

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Complete question

Which did you include in your response? Check all that apply?

Use ten 1/12 bars.

In order to determine which equation represents the boundary, replace the values of the coordinates of the given points, into the choices for the equations, and then verify if the left hand side matches with the right hand side.

For points (35,0) and (5,0) you have:

x = 35

y = 0

x = 5

y = 0

Then, for the first answer choice we have:

As you can notice, the equation matches for values of x and y.

Then, there is no necessary to verify for the other choices.

Hence, the equation (x - 20)^2 + y^2 = 225 represents the boundary that the sprinkler covers.

Solution

- The ordered list from the least to the greatest is:

- Thus, using the arrangement of the numbers, we can rearrange using the letters.

O, N, L, P, M

Final Answer

O, N, L, P, M (OPTION C)

SOLUTION

Note that for an inequality to be graphed with an open circle the inequality sign must be either less than or greater than

Therefore the inequalities are: