What would this be? PS it's multiple choice.

Answer:

34.54cm

Step-by-step explanation:

Perimeter of a semicircle is

\(\pi \: d \div 2\)

\(p = 3.14 \times 22 \div 2\)

\(p = 3.14 \times 11 \\ p = 34.54cm\)

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Is it possible for you to make money from answering questions on brainly

Answer:

Step-by-step explanation:

First equation:  −3x − 5 = 16

 Combine the constants:

 -3x = 21

  Solve for x using division:  x = 21/(-3)   or  x = -7

Second equation:  −4(y − 2) = 12

 Reduce this by dividing both sides by -4:  y - 2 = -3

 Add 2 to both sides, to isolate y:  y = -1

Note that based on probabilities,

The expected number of Democrats on the committee is 5.

The expected number of states represented on the committee is 26.

The expected number of states such that both of the state's senators are on the committee is 9.09.

a)  The probability that a randomly chosen senator is a Democrat is 50/100 = 1/2.

So, the expected number of Democrats on a committee of size 10 is

1/2 * 10 = 5.

b) The minimum number of   states that can be represented on a committee of size 10 is 2, and the maximum numberis 50.

The expected number of states representedon the committee is the average of these two values, which is (2 + 50)/  2 = 26.

c)  There are 50 states, and each state has 2 senators. So, there are a total of 100 pairs of senators.

The probability that a randomly chosen pair of senators both belong to the same state is 50/100 * 49/99

= 1/11.

The expected number of states such that both of the state's senators are on the committee is 100 * 1/11 = 9.09.

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Answer:

X and Y axis values

Step-by-step explanation:

Domain is the possible values for x -axis  and range is the possible values for y-axis

Answer:

The Y and X values on a graph

Step-by-step explanation:

There are many names for the y and x axises on a graph like domain and range, input and output, and independent variable and dependent variable.

Y-axis:

Range

Input

Independent Variable

X-axis:

Domain

Output

Dependent Variable

Based on the information, we can infer that the correct option is A, since all the conditions are true based on the information in the table.

To identify the conditions that are true in real life we must take into account each of them and contrast it with the reality of the difference between a monopoly and a competitive system. In this case we can infer that the true conditions compared to reality are:

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Answer:d

Step-by-step explanation:

The answer is d. None of the above is true.

To calculate velocity, we need to use the equation:

Velocity = M * P / Y

Given:

M = 1,000

P = 2.25

Y = 2,000

Plugging in the values:

Velocity = 1,000 * 2.25 / 2,000

Simplifying:

Velocity = 2.25 / 2

The result is:

Velocity = 1.125

Therefore, the correct answer is: d. None of the above is true.

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The velocity function v(t) is -cos(πt)/π + (4 + 1/π) and the position function s(t) is -(sin(πt)/π²) + (4 + 1/π)t + 2.

To find the velocity and position of the object, we need to integrate the given acceleration function with respect to time.

Given: Acceleration function: a(t) = sin(πt)

Initial velocity: v(0) = 4

Initial position: s(0) = 2

To find the velocity function v(t), we integrate the acceleration function with respect to time:

v(t) = ∫ a(t) dt

Integrating sin(πt) with respect to t gives us:

v(t) = -cos(πt)/π + C

Using the initial velocity condition v(0) = 4, we can solve for the constant C:

v(0) = -cos(π(0))/π + C

4 = -cos(0)/π + C

4 = -1/π + C

C = 4 + 1/π

So, the velocity function v(t) becomes:

v(t) = -cos(πt)/π + (4 + 1/π)

To find the position function s(t), we integrate the velocity function with respect to time:

s(t) = ∫ v(t) dt

Integrating -(cos(πt)/π + (4 + 1/π)) with respect to t gives us:

s(t) = -(sin(πt)/π²) + (4 + 1/π)t + D

Using the initial position condition s(0) = 2, we can solve for the constant D:

s(0) = -(sin(π(0))/π²) + (4 + 1/π)(0) + D

2 = 0 + 0 + D

D = 2

So, the position function s(t) becomes:

s(t) = -(sin(πt)/π²) + (4 + 1/π)t + 2

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Answer:

41.41

Step-by-step explanation:

cosA=6/8=3/4

I used a calculator

Answer: C

Step-by-step explanation:

Given

Nancy bought the bag with 1100 beads to make necklaces

She found another bag with 700 beads

So, the total number of beads is the sum of two i.e. 1800 beads

It takes 50 beads per necklace

The number of necklaces that can be formed is

\(\Rightarrow \dfrac{1800}{50}\\\\\Rightarrow 36\ \text{Necklaces}\)

Answer:

x = 25

Step-by-step explanation:

Angles in a triangle add up to equal 180

Thus, 180 = 27 + 53 + 4x

We now solve for x

step 1 combine like terms

27 + 53 = 80

we now have 180 = 80 + 4x

step 2 subtract 80 from each side

180 - 80 =  100

80 - 80 cancels out

we now have 100 = 4x

step 3 divide each side by 4

4x / 4 = x

100 / 4 = 25

we're left with x = 25

Using equations,

a. We can find that the required equation is p = 32n.

b. Also, Frankie reads 256 pages in 8 nights.

An equation can be defined in numerous ways. Algebraically speaking, an equation is a statement that shows the equality of two mathematical expressions. For instance, the two equations 3x + 5 and 14, which are separated by the 'equal' sign, make up the equation 3x + 5 = 14. Algebraic equations in mathematics frequently have one or more variables.

As per the question,

a.

Frankie reads 32 pages of a book each night.

Number of pages = p

Number of nights = n

So, our equation will be:

p = 32 × n

⇒ p = 32n

b.

Now, we need to find how many pages Frankie reads in 8 nights:

n = 8

p = 32n

= 32 × 8

= 256

Therefore, Frankie reads 256 pages in 8 nights.

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Prevalence is a commonly used metric in epidemiology and public health to describe the proportion of a population affected by a specific condition or characteristic during a specific period. In this case, it helps to understand the extent of allergies among children in 2020.

The calculation given is an example of a prevalence measure, which is used to determine the proportion or percentage of individuals in a population that have a particular health condition or disease. In this case, the number of children with allergies in 2020 is divided by an estimate of the total number of children in the population to determine the prevalence of allergies in the population.
Prevalence measures are useful for understanding the burden of a particular health condition in a population, as well as for identifying trends over time or differences between different groups within the population. However, it's important to note that prevalence measures are only as accurate as the data used to calculate them, so it's essential to use reliable sources of data and to ensure that the sample of individuals being measured is representative of the entire population.
Prevalence measures are widely used in epidemiology and public health research to understand the distribution of health conditions and diseases in populations. They can be calculated for a wide range of health outcomes, including chronic diseases, infectious diseases, mental health conditions, and more.
In addition to prevalence, other types of measures used in public health research include incidence (which measures the number of new cases of a particular health condition within a population over a specific period of time), mortality (which measures the number of deaths attributable to a particular health condition or disease), and morbidity (which measures the burden of illness associated with a particular health condition or disease, often in terms of disability-adjusted life years or quality-adjusted life years).
Ultimately, the type of measure used in a given study will depend on the research question being asked, the available data sources, and the specific health outcome being studied. However, regardless of the type of measure used, it's important to ensure that the sample of individuals being measured is representative of the entire population, and to use reliable and accurate data sources to calculate the measure.
The calculation you described, which involves dividing the number of children with allergies in 2020 by an estimate of the total number of children in the population, is an example of a prevalence measure.

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The correct number of girls in the school is 330.Kara's error lies in incorrectly setting up the proportion to find the number of girls in the school. Let's break down her proportion:

9/6 = x/550

In this proportion, 9 represents the number of girls and 6 represents the number of boys. Kara attempted to equate this ratio with the ratio of girls to the total number of students, represented by x/550.

The problem with Kara's setup is that the denominator of the proportion should reflect the total number of students, not just the number of boys. In this case, the total number of students is the sum of the number of girls and the number of boys, which is 9 + 6 = 15. So the correct proportion would be:

9/15 = x/550

By using this correct proportion, we can find the number of girls in the school. To do so, we can cross-multiply and solve for x:

9 * 550 = 15 * x

4950 = 15x

Dividing both sides by 15:

330 = x

Therefore, the correct number of girls in the school is 330.

To summarize Kara's error, she incorrectly equated the ratio of girls to boys with the ratio of girls to the total number of students. However, the proportion should compare the number of girls to the total number of students.

By using the correct proportion, we found that there are 330 girls in the school.

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The statement will be m∠ABC = m∠GHI.

Reason: ∠ABC ≅ ∠GHI

Answer:

The statement will be m∠ABC = m∠GHI.

Step-by-step explanation:

Answer:

3. 49

4. 101

Step-by-step explanation:

3) 180-51-63

= 66

180 - 66 = 44

4) 180 - 86-45 = 49

180 - 49 - 30 =101

Answer:

4 apples

yeaaaaaaaaaaaaaaaaaaahhhhhh

Answer:

ele tem 4 maçãs

Step-by-step explanation:

Answer:

the line is equal to 180 degrees so knowing that we can make our equation

(2x+3)+(x-6)=180

now all we have to do is combine like terms

3x-3=180

3x=177

x=59

plug back in

Value of A (2(59)+3)= 121

Value of B (59-6)= 53

The acceleration acquired by the object of mass 12 Kg and is pushed with a force of 12 N, is given by 5/3 m/s².

We know that from the first law of Newton's Law that,

F = m*a

where 'F' is applied force; 'm' is mass of object and 'a' is acceleration.

Let the acceleration acquired by the object be 'A'.

Mass of the object is (m) = 12 Kg

The force applied (F) = 20 N

So from Newton's First Law of Motion we get,

F = m*a

20 = 12*A

A = 20/12

A = 5/3

Hence the acceleration will be 5/3 m/s².

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The question is in another language. The question is in English will be -

''What is the acceleration acquired by an object that has a mass of 12 Kg and is pushed with a force of 20N?''

After 2.3167 seconds, the rocket and the ball reach the same height.

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The functions are given below.

b(t) = -t² - 4t + 22         ...1

p(t) = -2t + 12               ...2

From equations 1 and 2, then we have

-2t + 12 = -t² - 4t + 22

t² + 4t - 2t = 22 - 12

t² + 2t = 10

t² + 2t + 1 = 10 + 1

(t + 1)² = 11

t + 1 = ± 3.3167

t = - 1 ± 3.3167

t = -4.3167, 2.3167

Time is an absolute value. So, it cannot be negative.

After 2.3167 seconds, the rocket and the ball reach the same height.

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i) If you already know that 88 out of 100 people developed immunity, then you can simply use this information to estimate the proportion of the population that will develop immunity with a margin of error of 0.03. In this case, the sample size is not relevant because you already have the information you need.

ii) If you do not have any estimate of the proportion of people who will develop immunity, then you will need to collect a sample and use this sample to estimate the proportion of the population that will develop immunity. To determine the minimum sample size needed, you will need to consider the desired margin of error and the level of confidence you want to have in your estimate.

To calculate the minimum sample size needed, you can use the following formula:

n = (Z² × p × (1 - p)) / (ME²)

where:

For example, if you want to estimate the proportion of the population that will develop immunity with a 95% confidence level and a margin of error of 0.03, you would use a z-score of 1.96 and plug the values into the formula like this:

n = (1.96² × 0.5 × (1 - 0.5)) / (0.03²) = 384

This would mean that you would need a sample size of at least 384 to estimate the proportion of the population that will develop immunity with a margin of error of 0.03 and a 95% confidence level.

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Answer:

$141,557.76

Step-by-step explanation:

Chao bought a boat for 160,000

The value of the boat reduces by 4% every year

Therefore the value of the most at the end of three years can be calculated as follows

= 100%- 4%

= 96%

= 160,000 × 96/100^3

= 160,000 × 0.96^3

= 160,000 × 0.884736

= 141,557.76

Hence the price of the boat after 3 years is 141,557.76

The first four terms of the sequence would be -

9, 12, 15, 18

Number sequence is a progression or an ordered list of numbers governed by a pattern or rule. For example -

3, 6, 9, 12, 15

x, x + 2, x + 4, x + 6

We have the following sequence -

f(n) = 3n + 6

We can write the first four terms as -

f(1) = 3 x 1 + 6 = 9

f(2) = 3 x 2 + 6 = 12

f(3) = 3 x 3 + 6 = 15

f(4) = 3 x 4 + 6 = 18

Therefore, the first four terms of the sequence would be -

9, 12, 15, 18

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Answer:

1) v_i = 2.78 m/s

v_f = 16.67 m/s

t = 5 s

Acceleration = 2.78 m/s²

2) a = 1.5 m/s²

Step-by-step explanation:

1) The car was running at 10 km/hr.

In m/s this is 2.78 m/s

Thus;

Initial velocity; v_i = 2.78 m/s

It increased its speed to 60 km/hr in 5 seconds.

Thus, final velocity is 60 km/hr

Converting to m/s gives; 16.67 m/s

Final velocity; v_f = 16.67 m/s

Time to reach final velocity; t = 5 seconds

From Newton's first equation of motion, we can find the acceleration;

a = (v_f - v_i)/t

a = (16.67 - 2.78)/5

a = 2.78 m/s²

2) started from test, so initial velocity;

v_i = 0 m/s

Reached a speed of 9 m/s in 6 seconds.

Final velocity; v_f = 9 m/s

Time; t = 6 s

Acceleration is calculated as;

a = (v_f - v_i)/t

a = (9 - 0)/6

a = 1.5 m/s²

Answer:19.2

Step-by-step explanation:

Step-by-step explanation:

I believe it's table 2 only, but I apologize if I'm wrong. Haven't learned functions in about 3 years haha!

The value of  variable x in the equation is 16.

The equation represented as follows:

x + 14 + x³ = 78

The value x is the variable.

A variable is number represented with a letter in an equation.

Therefore,

x + 14 + 3x = 78

subtract 14 from both sides of the equation

x + 3x + 14 - 14 = 78 - 14

x + 3x = 64

Therefore,

4x = 64

divide both sides by 4

4x / 4 = 64 / 4

x = 16

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======================================================

Explanation:

We multiply the hourly wage by the number of hours worked to get the total amount earned.

(7.25)*(40) = 290

This is before taxes are applied. So we consider it the gross earnings (as opposed to the net earnings).

Step-by-step explanation:

Solution is given in the atttachment

hope it's helpful