Awnser this please.

Answer:

The beach ball can hold 523.33 cubic inches of air

Step-by-step explanation:

Diameter of beach ball = 10 inches

Radius of beach ball =[tex]\frac{10}{2}= 5 inches[/tex]

We are supposed to find  How many cubic inches of air can the beach ball hold

Volume of sphere = [tex]\frac{4}{3} \pi r^3[/tex]

Where r is the radius

So, volume of sphere = [tex]\frac{4}{3} \times 3.14 \times 5^3=523.333 in^3[/tex]

Hence The beach ball can hold 523.33 cubic inches of air

Answer:

523.33

Step-by-step explanation:

Answer: one third of a chance

Step-by-step explanation:

The probability that she will select a pencil and a cap that is the same color is 1/4 option (C) 1/4 is correct.

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

It is given that:

Mechanical pencil: 1 red, 1 green, 1 blue

Erase cap: 1 red, 1 green, 1 blue, and 1 yellow.

P(both red) = (1/3)x(1/4) = 1/12

P(both green) = (1/3)x(1/4) = 1/12

P(both blue) = (1/3)x(1/4) = 1/12

P(same colour) = 1/12 + 1/12 + 1/12 = 3/12 = 1/4

Thus, the probability that she will select a pencil and a cap that is the same color is 1/4 option (C) 1/4 is correct.

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Answer:

80%

Step-by-step explanation:

Answer:

(-4, 0)

Step-by-step explanation:

We just need to identify where it is on both the x and y axis!

X Axis - Horizontal middle line.

Y Axis - Vertical middle line.

On the x-axis, you can see it is at -4, therefore we know our x is that.

On the y-axis, you can see it hasn't gone up or down from the vertex, showing us that it has neither gone up or down, so it is 0!

Answer:

[tex]-77\sqrt{30}[/tex]

Step-by-step explanation:

[tex](-7\sqrt{3})(11\sqrt{10})=-77\sqrt{30}[/tex]

Hope this helps!

The simplified form of the expression is  -77√33

Given the surd function (-7√3)(11√10)

Multiply the surd functions together. To do this, you multiply both the integers and the surd functions separately  as shown:

Hence the simplified form of the expression is  -77√33

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Answer:

0.00086 or 0.086%

Step-by-step explanation:

The question is not complete, however, after searching online for the question, I was able to get the complete question.

Given that

USL = 14 ; CL = 13 ; LSL = 12

Probability of air pressure > 14 is equal to the  Probability of air pressure <12 because the process is centered

Therefore, the probability of defect in future is equal to 2 × Probability of air pressure > 14

For us to discover the probability of pressure > 14, finding Z-value for X= 14 is important,

Mean Pressure (mu) =13

Std. Deviation (Sigma) = 0.3

Therefore;

Z = (X-mu)/sigma = (14-13)/0.3 = 3.33

From Standard normal distribution table for Z = 3.3, p = 0.99957

Hence,

the probability of pressure > 14 = 1 - 0.99957 = 0.00043

Finally, the probability of defect in future

= 2 × Probability of air pressure > 14

= 2 × 0.00043

= 0.00086

= 0.086 %

Answer:

It is 45m2

Step-by-step explanation:

Just took did the question of the topic calculating the Base of Area of a Cone

Answer:

its 42 m^2

Step-by-step explanation: did it on edge

Answer:

average cost ≈ $12.21  (nearest cent)

Step-by-step explanation:

The cost of printing the shirt is $400 plus $7.50 per shirt. The cost for producing the shirt requires  a flat rate of $ 400 plus an additional $7.50 for each shirt.

Let

x = number of shirt

total cost = 400 + 7.50(x)

The number of shirt sold = 85

The average cost per shirt can be calculated as follows when he sold 85 shirts.

Average cost =  total cost/number of shirt

total cost = 400 + 7.50(x)

total cost = 400 + 7.50(85)

total cost = 400 + 637.50

total cost = $1037.5

number of shirt = 85

average cost per shirt = 1037.5/85

average cost = 12.205882353

average cost ≈ $12.21  (nearest cent)

Answer:

13.98 degrees

Step-by-step explanation:

Let the airplane be at point A, the airport at point B and the point of overshoot, point C.

If the plane is on path AC and the pilot wants to adjust to the path AB, the angle by which the pilot will adjust the airplane heading is the angle between AB and AC which is A.

Using Cosine Rule

[tex]Cos A=\dfrac{b^2+c^2-a^2}{2bc} \\Cos A=\dfrac{65^2+60^2-16^2}{2(65)(60)} \\Cos A=0.9704\\A=arcCos (0.9704)\\\angle A=13.98^\circ[/tex]

The pilot should adjust the plane's heading by 13.98 degrees.

Answer:

We have the function:

r = -3 + 4*cos(θ)

And we want to find the value of θ where we have the maximum value of r.

For this, we can see that the cosine function has a positive coeficient, so when the cosine function has a maximum, also does the value of r.

We know that the meaximum value of the cosine is 1, and it happens when:

θ = 2n*pi, for any integer value of n.

Then the answer is  θ = 2n*pi, in this point we have:

r = -3 + 4*cos (2n*pi) = -3 + 4 = 1

The maximum value of r is 7

(while you may have a biger, in magnitude, value for r if you select the negative solutions for the cosine, you need to remember that the radius must be always a positive number)

Answer:

the correct answer is d.pi

Step-by-step explanation:

I just took the quiz

Answer:

About a third of the residents prefer a park improvement of more trees.

Step-by-step explanation:

Less than 1/2 of the sample actually wanted more trees, so it isn't " Most residents in the town would like to have more trees in the park."

You (usually) can't get an exact answer with a sample, so it isn't ". Exactly 36% of the residents in the town would like more trees in the park."

You don't have enough data to say "Residents who use the park the most would like more trees planted."

Answer:

choice c. 46

Step-by-step explanation:

Find a b if a = 10i + 4j and b = 3i + 4%

a = <10, 4>

b = <3, 4>

a*b = <10, 4> * <3, 4> = 10*3 + 4*4 = 30 + 16 = 46

Answer:

C. 46

Step-by-step explanation:

Answer:

2x^3 -x

Step-by-step explanation:

x^3 -2x +2x^2 + x^3 -2x^2 +x

Combine like terms

x^3 + x^3   +2x^2 - 2x^2   -2x +x

2x^3 -x

Answer:

22 cm

Step-by-step explanation:

The perimeter is the distance all the way around a shape. To find the perimeter, add up all the sides

The side lengths are 5, 8 and 9

5+8+9=22

So, the perimeter is 22 centimeters.

Answer: C

Step-by-step explanation:

The population for the survey is all people who surf at Breakers Point. And Micah will not get a representative sample. Then the correct options are C and D.

In order to gather information about a service, product, or process, a survey is described as an act of looking at a process or questioning a predetermined sample of people. Surveys used to gather data ask a specific set of people about their beliefs, actions, or knowledge.

Surveys are research techniques used to gather data from a designated group of respondents in order to learn more and acquire insights into a range of interesting topics. Depending on the methodology chosen and the objective of the study, they can be conducted in a variety of methods and serve a variety of objectives.

The population for the survey is all people who surf at Breakers Point. And Micah will not get a representative sample. Then the correct options are C and D.

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Answer:

  (c)  On a coordinate plane, a dashed straight line has a negative slope and goes through (0, 3) and (2, 0). Everything to the left of the line is shaded.

Step-by-step explanation:

You want a description of the graph of 6x +4y < 12.

The x-intercept will be the solution to ...

  6x = 12   ⇒   x = 2, point (2, 0)

The y-intercept will be the solution to ...

  4y = 12   ⇒   y = 3, point (0, 3)

The form of the inequality ...

  x < ( )

tells you the shading is left of the line, and the line is dashed. That is, solution set values of x are less than those on the line. The "or equal to" case is not included, so the line is not included in the solution set.

Answer:

Yes. We have evidence to support the claim that there is a difference in the use of the four entrances.

Step-by-step explanation:

The question is incomplete:

Entrance Frequency

Main Street 81

Broad Street 129

Cherry Street 72

Walnut Street 119

Total: 401

The building maintenance supervisor wants to know if the entrances are equally utilized.

This problem can be solved using the Chi-square goodess of fit test.

The expected value for each door is

[tex]E=401/4=100.25[/tex]

The degrees of freedom are equal to the number of categories (4 doors) minus one:

[tex]df=n-1=4-1=3[/tex]

Then, the value of the chi-square statistic can be calculated as:

[tex]\chi^2=\sum \dfrac{(O_i-E)^2}{E}\\\\\\\chi^2=\dfrac{(81-100.25)^2}{100.25}+\dfrac{(129-100.25)^2}{100.25}+\dfrac{(72-100.25)^2}{100.25}+\dfrac{(119-100.25)^2}{100.25}\\\\\\\chi^2=\dfrac{370.5625+826.5625+798.0625+351.5625}{100.25}=\dfrac{2346.75}{100.25}=23.41[/tex]

The P-value for this test statistic χ^2=23.41 and df=3 is:

[tex]P-value=P(\chi^2_3>23.41)=0.00003[/tex]

This P-value is much smaller than the significance level (0.01), so the effect is significant.

We have evidence to support the claim that there is a difference in the use of the four entrances.

Answer:

Step-by-step explanation:

The question is incomplete. The missing part is shown in the comment box.

Mean = (697 + 759 + 1266 + 621 + 569 + 432)/6 = 724

Standard deviation = √(summation(x - mean)²/n

n = 6

Summation(x - mean)² = (697 - 724)^2 + (759 - 724)^2 + (1266 - 724)^2+ (621 - 724)^2 + (569 - 724)^2 + (432 - 724)^2 = 415616

Standard deviation = √415616/6 = 263.2

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ ≤ 1000

For the alternative hypothesis,

µ > 1000

It is a right tailed test.

Since the number of samples is small and no population standard deviation is given, the distribution is a student's t. The test statistic, t would be calculated with the formula below

Since n = 6

Degrees of freedom, df = n - 1 = 6 - 1 = 5

t = (x - µ)/(s/√n)

Where

x = sample mean = 724

µ = population mean = 1000

s = samples standard deviation = 263.2

t = (724 - 1000)/(263.2/√6) = - 2.57

We would determine the p value using the t test calculator. It becomes

p = 0.025

From the t distribution table, the critical value is 2.571

Since alpha, 0.05 > than the p value, 0.025, then we would reject the null hypothesis.

Therefore, at a 5% level of significance, the results do not suggest that all of the child booster seats meet the specified​ requirement.

The results suggests that the safety requirement for the hic measurement should be more than 1000 hic.

Answer:

a) [tex]46.14-3.707\frac{1.19}{\sqrt{7}}=44.47[/tex]    

[tex]46.14+3.707\frac{1.19}{\sqrt{7}}=47.81[/tex]    

b) For this case the upper limit for the confidence interval is lower than 48 so then at 1% of significance we can't conclude that the claim given is true.

c) [tex] ME = t_{\alpha/2}\frac{s}{\sqrt{n}}[/tex]

If we reduce the sample size from 30 to 10 we will have an interval wider since the margin of error would be larger

Step-by-step explanation:

Data given

[tex]\bar X=46.14[/tex] represent the sample mean

[tex]\mu[/tex] population mean

s=1.19 represent the sample standard deviation

n=7 represent the sample size  

Part a

The confidence interval for the mean is given by the following formula:

[tex]\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}[/tex]   (1)

The degrees of freedom are given by:

[tex]df=n-1=7-1=6[/tex]

The Confidence level is 0.99 or 99%, the significance would be [tex]\alpha=0.01[/tex] and [tex]\alpha/2 =0.005[/tex], and the critical value for this case is [tex]t_{\alpha/2}=3.707[/tex]

Replacing we got:

[tex]46.14-3.707\frac{1.19}{\sqrt{7}}=44.47[/tex]    

[tex]46.14+3.707\frac{1.19}{\sqrt{7}}=47.81[/tex]    

Part b

For this case the upper limit for the confidence interval is lower than 48 so then at 1% of significance we can't conclude that the claim given is true.

Part c

For this case we need to take in count that the margin of error is given by:

[tex] ME = t_{\alpha/2}\frac{s}{\sqrt{n}}[/tex]

If we reduce the sample size from 30 to 10 we will have an interval wider since the margin of error would be larger

isolate m by subtracting 110 on both sides.

125=m+110

-110      -110

15=m

Answer:

42cm²

Step-by-step explanation:

b×h

6×7=42

area-To find the area of a rectangle multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

Answer:

42 sq cm

Step-by-step explanation:

6 x 7=42

The equation of the circle with diameter AB and endpoints A(5, 4) and B(-1, -4) is (x - 2)² + y² = 25.

We have,

To find the equation of a circle given the diameter endpoints, use the midpoint formula and the distance formula.

Given the diameter endpoints:

A(5, 4) and B(-1, -4)

Step 1:

Find the midpoint of the diameter.

The midpoint formula is given by:

Midpoint = ((x₁ + x₂) / 2, (y₁ + y₂) / 2)

Let's calculate the midpoint using the coordinates of A and B:

Midpoint = ((5 + (-1)) / 2, (4 + (-4)) / 2)

Midpoint = (4 / 2, 0 / 2)

Midpoint = (2, 0)

Step 2:

Find the radius of the circle.

The radius is the distance between the midpoint and one of the endpoints, A or B.

The distance between the midpoint and point A:

Distance = √((x₂ - x₁)² + (y₂ - y₁)²)

Distance = √((5 - 2)² + (4 - 0)²)

Distance = √(3² + 4²)

Distance = √(9 + 16)

Distance = √25

Distance = 5

The radius of the circle is 5.

Step 3:

Write the equation of the circle.

The equation of a circle with center (h, k) and radius r is given by:

(x - h)² + (y - k)² = r²

Using the midpoint as the center (h, k) and the radius we calculated:

(x - 2)² + (y - 0)² = 5²

(x - 2)² + y² = 25

Therefore,

The equation of the circle with diameter AB and endpoints A(5, 4) and B(-1, -4) is (x - 2)² + y² = 25.

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Answer: The percentage of adults that have a blodd pressure less than 125 mmHg is 15.87%

Step-by-step explanation:

In a normal distribution, we have that in the range:

(-∞, M) we have a 50%

(M, ∞) we have the other 50%.

(the infinite symbols are for notation, obviusly you can not have negative blood pressure)

where M is the mean.

If SD is the standard deviation, in the range

(M - SD, M) we have a 34.13%

Now, the values we have are: M = 134 mmHg, SD = 9mmHg

Then we can replace those values and get:

(M - SD, M) = (125mmHg, 134mmHg) = 34.13%

The range of blodd presure that is smaller than

Then, the range of blood pressure smaller than 125mmHg is the range between (-∞, 125mmHg)

We can calculate this proportion as:

(-∞. 134mmHg) - ( 125mmHg, 134mmHg) = 50% - 34.13% = 15.87%

The percentage of adults that have a blodd pressure less than 125 mmHg is 15.87%

The percentage of adults in the town of Bridgeport with a systolic blood pressure less than 125 mmHg is approximately 15.87%.

In this question, we are given that the systolic blood pressure of adults in the town of Bridgeport is normally distributed with a mean of 134 mmHg and a standard deviation of 9 mmHg.

We need to find the percentage of adults in the town who have a systolic blood pressure less than 125 mmHg.

To solve this, we can standardize the given value of 125 mmHg using the formula z = (x - μ) / σ, where z is the z-score, x is the given value, μ is the mean, and σ is the standard deviation.

Substituting the given values, we have z = (125 - 134) / 9 = -1. Here, we are interested in finding the area to the left of this z-score on the standard normal distribution curve.

Using a standard normal distribution table or a calculator, we can find that the percentage of adults in the town with a systolic blood pressure less than 125 mmHg is approximately 15.87%.

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Answer:

six hunddered n twelve

Step-by-step explanation:

Answer:

the 1st one

Step-by-step explanation:

Answer:

357cos(2π/365(t-171))+739.5  

To model day length in Juneau, Alaska, a sine function with parameters calculated from the longest and shortest days is used. The function L(t) for the length of day in minutes, t days after January 1, is given by L(t) = 357 sin((2π/365)(t - 171)) + 739.5.

To model the length of day in Juneau, Alaska using a trigonometric function, we need to consider the longest and shortest day timings, the periodic nature of day length, and the fact that we're measuring time in minutes.

The function will have a sine function because the length of day varies sinusoidally, with the longest and shortest days being half a period apart.

The sine function to model day length L (in minutes) t days after January 1 will take the form:

L(t) = A sin(B(t - C)) + D

Where:

A is the amplitude, half the difference between the longest and shortest day lengths.

B is related to the period of the function, which is 2π divided by the number of days in a year.

C is the horizontal shift, which aligns the function with the longest day of the year.

D is the vertical shift, the average of the longest and shortest day lengths.

Let's calculate the amplitude (A), which is half the difference between the longest (1096.5 minutes) and shortest (382.5 minutes) day lengths:

A = (1096.5 - 382.5) / 2

A = 357

The period (B) can be calculated as:

B = 2π / 365

To find the horizontal shift (C), we use the fact that the longest day is on June 21, which is 171 days after January 1:

C = 171

The average day length (D), which is the vertical shift, is calculated:

D = (1096.5 + 382.5) / 2

D = 739.5

Finally, our function for day length L(t) is:

L(t) = 357 sin((2π/365)(t - 171)) + 739.5

Answer: Miles ran by Matt = 6 miles

Step-by-step explanation: Miles ran by Stan = 4 7/10

i.e. 1 3/10 miles less than Matt.

∴ Miles ran by Matt = 4 7/10 + 1 3/10 = 60/10 = 6miles

∴ Miles ran by Matt = 6 miles

Answer:

The answer is A Mollys work

Step-by-step explanation:

I just did the work, and also it says "Fewer" which is subtraction but you need to change the subtraction to addition. And the answer is 6.

I hope this helps! <Dekomori Sanae(Engilish way to say it)/Sane Dekomori(Japanease way to say it)

Answer:

3/6

Step-by-step explanation:

there are 6 sides: 3 odd and 3 even numbers

if you need to find the probability of rolling an odd number, take the number of odd possibilities and form a fraction with the number of total sides, 6.

so, 3/6 Or 1/2

Answer:

It would most likely be a 3 out of 6 chance per roll

Step-by-step explanation

With each roll there is a 50% percent chance of getting an odd number

Answer: 150

Step-by-step explanation: cause it has six side in total of 720 and subtract it and you have 150

Answer:

2.5

and

y=2.5x

Step-by-step explanation:

Answer:

2.5

y=2.5x

Step-by-step explanation:

I hope you do good today I'm a little sad sorry I didn't do the joke of the day :(