what the answer please answer quick need help ​

Answer:

The volume of the cup is of 142.2 cubic centimeters.

Step-by-step explanation:

The cone volume is given by the following equation:

[tex]V = \frac{\pi r^{2}h}{3}[/tex]

In which r is the radius, which is half the diameter, and h is the height.

In this question:

Dimensions in cm, so the volume will be in cubic centimers.

Height of 10 cm, so [tex]h = 10[/tex]

Diameter of [tex]7 + \frac{3}{8} = \frac{7*8 + 3}{8} = \frac{59}{8} = 7.375[/tex]

So the radius is [tex]r = \frac{7.375}{2} = 3.6875[/tex]

Volume of the cup:

[tex]V = \frac{\pi*(3.6875)^{2}*10}{3} = 142.4[/tex]

The volume of the cup is of 142.2 cubic centimeters.

Answer:

factored is (x+1)(x+5)

Step-by-step explanation:

gradpoint

Answer:

Experimental.

Step-by-step explanation:

It is an independent measure design. Multiple experimental groups are used in an independent measures design, which is a research method and participants are only in one group. Each participant is only in one condition of the independent variable during the experiment.

Answer:

The correct option is C

Step-by-step explanation:

ANOVA is the correct option because it can be used to carry out comparison of average of more than  two groups  

Answer:

Given:

n = 1003

[tex] p' = \frac{462}{1003} = 0.4606 [/tex]

q = 1 - 0.4606 = 0.5394

a) The sample size and count.

Here the sample size is the number that took part in the poll. It is denoted as n = 1003.

The count is the number that answered yes. Count = 462

b) The sample proportion.

The formula for sample proportion is: [tex] p' = \frac{x}{n} [/tex]

Therefore, sample proportion =

[tex] p' = \frac{462}{1003} = 0.4606 [/tex]

c) The relationship between population proportion and sample proportion.

Since the sample size is greater than 30 (n>30), the sample size is large. Hence, for a large sample, the population proportion is approximately equal to the sample proportion.

This means the population proportion, p = 0.4606

Answer:

A) Sample size n=1003

Count x=462

B) Sample proportion p=0.46

C) The population proportion can be estimated with a confidence interval, with the information given by the sample proportion.

The 95% confidence interval for the population proportion is (0.429, 0.491).

Step-by-step explanation:

A) The sample size include all the adult that answer the poll. The sample size is then n=1003.

The count is the number of adults that answer Yes in this case. The count is x=462.

B) The sample proportion can be calculated dividing the count by the sample size:

[tex]p=\dfrac{x}{n}=\dfrac{462}{1003}=0.46[/tex]

C) The population proportion is not known. It can only be estimated with the information given by samples of that population. The statistical inference is the tool by which the sample information can be used to estimate the population characteristics.

With the sample proportion p we can estimate a confidence interval for the population proportion.

We can calculate a 95% confidence interval.

The standard error of the proportion is:

[tex]\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.46*0.54}{1003}}\\\\\\ \sigma_p=\sqrt{0.00025}=0.0157[/tex]

The critical z-value for a 95% confidence interval is z=1.96.

The margin of error (MOE) can be calculated as:

[tex]MOE=z\cdot \sigma_p=1.96 \cdot 0.0157=0.031[/tex]

Then, the lower and upper bounds of the confidence interval are:

[tex]LL=p-z \cdot \sigma_p = 0.46-0.031=0.429\\\\UL=p+z \cdot \sigma_p = 0.46+0.031=0.491[/tex]

The 95% confidence interval for the population proportion is (0.429, 0.491).

We have 95% that the population proportion is within this interval

Answer:

D

Step-by-step explanation:

No because the product of their slopes is not -1

In the attached file

Answer:quadratic formula

Step-by-step explanation:

Answer:

Completing the square.

Step-by-step explanation:

x^2-8x+(-4)^2=22 can be rewritten as (x-4)^2=22. therefore, the best method would be completing the square.

Answer:

y-4 = 8/7(x-4)

Step-by-step explanation:

formula is y-y=m(x-x) just substitute the numbers in

Answer:

Nancy's ambient locality might be having more suppliers, higher supply of Gasoline

Step-by-step explanation:

National average price of gasoline = $3.14

Stations near Nancy's home have an average price = $2.95

Gasoline price near Nancy's house is lesser than national average price level. Number of gasoline stations near her house might be more. It implies increase in its supply. This leads to competition among sellers & reduces the price level.

Answer:

56

Step-by-step explanation:

If you could give me a thanks, that would be much appreciated.

Answer:

83.9357% increase for the buyer

Step-by-step explanation:

Answer:

0.2

Step-by-step explanation:

total = 1.0

strawberry = 0.8

1-0.8 =0.2

Answer:

0.2 is the probability of orange sweet.

Answer:

[tex]\mu_{\hat p}= 0.06[/tex]

[tex] \sigma_{\hat p}= \sqrt{\frac{0.06*(1-0.06)}{280}}= 0.0142[/tex]

And we want to find this probability:

[tex] p(\hat p <0.09)[/tex]

[tex] z = \frac{p \mu_{\hat p}}{\sigma_{\hat p}}[/tex]

[tex] z = \frac{0.09-0.06}{0.0142}= 2.114[/tex]

And we can find this probability:

[tex] P(z<2.114)[/tex]

And using the normal table or excel we got:

[tex] P(z<2.114)= 0.9827[/tex]

Step-by-step explanation:

For this case we have the following info given:

[tex] n = 280[/tex] represent the sample size

[tex] p =0.06[/tex] represent the true proportion

The sample proportion can be approximated with this distribution:

[tex] \hat p \sim N (p ,\sqrt{\frac{p(1-p)}{n}})[/tex]

The mean is given by:

[tex]\mu_{\hat p}= 0.06[/tex]

And the deviation is given by:

[tex] \sigma_{\hat p}= \sqrt{\frac{0.06*(1-0.06)}{280}}= 0.0142[/tex]

And we want to find this probability:

[tex] p(\hat p <0.09)[/tex]

And we can use the z score formula given by:

[tex] z = \frac{p \mu_{\hat p}}{\sigma_{\hat p}}[/tex]

And replacing we got:

[tex] z = \frac{0.09-0.06}{0.0142}= 2.114[/tex]

And we can find this probability:

[tex] P(z<2.114)[/tex]

And using the normal table or excel we got:

[tex] P(z<2.114)= 0.9827[/tex]

Answer:

The appropiate constraint is:

[tex]2X_1+3X_2\leq10,000[/tex]

Step-by-step explanation:

There is only one restriction in this problem, and that is the available units of recycled paper per month.

There is a total of 10,000 units.

Regular paper (X1) uses 2 units per unit of production and Super-soaker (X2) uses 3 units per unit of production.

The total units used for both types of paper are:

[tex]2X_1+3X_2[/tex]

This amount has to be equal or smaller than the available (10,000 units):

[tex]2X_1+3X_2\leq10,000[/tex]

The appropriate constraint/s for the units of production being made by XYZ Inc is;

2X₁ + 3X₂ ≤ 10000

We are told that;

X₁ is the number of units of regular produced per month

X₂ the number of units of super-soaker produced per month.

we are told that;

Regular uses 2 units of recycled paper per unit of production. This is 2X₁

Also, we are told that super-soaker uses 3 units of recycled paper per unit of production. This is 3X₂.

We are now told that The total amount of recycled paper available per month is 10,000.

This means that;

2X₁ + 3X₂ ≤ 10000

The symbol less than or equal to is used because it is not possible for the 10000 to be exceeded as that is the amount available and also it's possible less than the 10000 may be used.

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Answer:

(5+7x)^2

Step-by-step explanation:

25+70x+49x^2

This is a perfect square trinomial

a^2 +2ab + b^2 = (a+b)^2

5^2 *2*5*7x+ (7x)^2 = (5+7x)^2

The answer is [tex]y^{4+6}[/tex] = [tex]y^{10}[/tex]

Answer:

P(either almond or cashew) = ⅔

Step-by-step explanation:

We are told that the bag contains a mixture of almonds walnuts and cashews of equal number.

Since the 3 nuts are equal in number, they will have a ratio of 1:1:1.

So, when a nut is chosen randomly,

Probability of choosing almond = 1/3

Probability of choosing cashew = 1/3

Thus,

Probability of choosing either almond or cashew in a random selection will be the sum of their individual probability.

So,

P(either almond or cashew) = ⅓ + ⅓ = ⅔

Answer: 9.5 (D.)

Step-by-step explanation:

SOCAHTOA

the sin of an angle is equal to the opposite side over the hypotenuse.

angle: 32

opposite side: x

hypotenuse: 18 m

1. sin32 = x/18

2. 18(sin32) = x

3. 9.5 = x

if you are confused with how it went from 18(sin32) to 9.5, you can plug 18(sin32) into your calculator.

Answer:

-4, 1

Step-by-step explanation:

A (-4, 1)

reflected over y-axis –> (4, 1)

reflected over x-axis –> (4, -1)

rotated 180º –> (-4, 1)

Answer:

It is 18

Step-by-step explanation:

Hope this helps have a wonderful day

The possible outcomes of ordering be 18.

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter.

Drink = 3 choice

Entree= 3 choices

Dessert = 2 choice

So, Using tree method

drink              1                                      2                            3

Entree         1      2      3                   1      2      3                 1      2     3  

Dessert    1  2   1  2   1  2              1  2  1  2  1  2              1  2  1  2  1  2

So, the possible outcomes of ordering be 18.

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Answer:

the equation used to determine the number of dimes in his pocket is an "algebraic equation" (3/4)x = 5.25

and the value of x = 7

Step-by-step explanation:

We are being told that:

Alex has 3 more quarters than dimes in his pocket, for a total of $5.25.

Let the value for the dimes in his pocket be x:

So he has 3 more quaters than x

We know that a quarter is 1/4

3 more quaters than x = (3/4) x

(3/4)x = 5.25

3x = 5.25 * 4

3x = 21

x = 21/3

x = 7

Thus, the equation used to determine the number of dimes in his pocket is an "algebraic equation" (3/4)x = 5.25

and the value of x = 7

Answer:

c=15

Step-by-step explanation:

45=3c,divide

c=15

Answer:

Alonzo ate 1/2 more than Mitra.

Step-by-step explanation:

In this question, you are supposed to find how much more Alonzo ate. We solve that like this:

Steps:

   - Set up the Equation:

       - 1/4 + ? = 3/4

       - The question mark represents the answer.

   - Inverse Operations:

       - Change 1/4 + ? = 3/4 to 3/4 - 1/4 = ?

       - Since Subtraction is the opposite of Addition, we flip the equation.

   - Solve:

       - [tex]\frac{3}4} -\frac{1}{4} =\frac{2}{4}[/tex]

       - Then Simplify:

       - [tex]\frac{2}{4} =\frac{1}{2}[/tex]

So, Alonzo ate 1/2 more than Mitra, or C.

Hope this helps! Good luck!

So the value of X is 2.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

[tex]x = 2[/tex]

First answer is correct

Step-by-step explanation:

[tex]9 = 1 + 8x - 8 \\ 9 - 1 + 8 = 8x \\ 16 = 8x \\ \frac{16}{8} = \frac{8x}{8} \\ x = 2[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

[tex]8+i[/tex]

Step-by-step explanation:

We are given that an expression

[tex]6i^4+6i^3-2i^2+\sqrt{-49}[/tex]

We have to rewrite in the form of a+bi

[tex]6(i^2)^2+6i^3-2i^2+\sqrt{-49}[/tex]

We know that

[tex]i^2=-1[/tex]

[tex]i^3=-i[/tex]

[tex]\sqrt{-1}=i[/tex]

Using the identity

Then, we get

[tex]6-6i-2(-1)+7i[/tex]

[tex](6+2)+(7-6)i[/tex]

[tex]8+i[/tex]

This is required form of a+ib

Answer:

1. 10% of the bill is $138. The final bill once 10% is taken off is $1242.

2. 20% of the total is $34.10. The final total once the 20% is taken off is $136.4

Step-by-step explanation:

1. A crash repair bill comes to $1380.00. How much is 10% of the bill? What is the final bill once 10% is taken off?

To find how much is 10% of the bill, we multiply the bill by 0.1

0.1*1380 = 138

10% of the bill is $138.

To find the final bill, we subtract the initial bill by 10%.

1380 - 138 = 1242

The final bill once 10% is taken off is $1242.

2. A person buys a new fan belt, a new alternator, and a new water pump for their car. The total comes to $170.50. What is 20% of the total? How much is the final total once the 20% is taken off?

Same logic as above.

0.2*170.50 = 34.1

20% of the total is $34.10.

170.50 - 34.1 = 136.4

The final total once the 20% is taken off is $136.4

Answer:

The function is  [tex]P(x) = \frac{1}{2} e^{-x^2} +0.016[/tex]

Step-by-step explanation:

From the question we are told that

    The rate of growth  is  [tex]P'(x) = xe^{x} - x^2[/tex]

     The total profit is [tex]P(2) =[/tex]$25,000

      The time taken to make the profit is [tex]x = 2 \ years[/tex]

From the question

     [tex]P'(x) = xe^{-x^2}[/tex]  is the rate of growth

  Now here x represent the time taken

Now the total profit is mathematically represented as

       [tex]P(x) = \int\limits {P'(x)} \, = \int\limits {xe^{-x^2}} \,[/tex]

So using substitution method

   We have that

                      [tex]u = - x^2[/tex]

                      [tex]du = 2xdx[/tex]

  So  

        [tex]p(x) = \int\limits {\frac{1}{2} e^{-u}} \, du[/tex]

       [tex]p(x) = {\frac{1}{2} [ e^{-u}} +c ][/tex]

       [tex]p(x) = {\frac{1}{2} e^{-x^2}} + \frac{1}{2} c[/tex]      recall  [tex]u = - x^2[/tex]   and  let  [tex]\frac{1}{2} c = Z[/tex]

At  x =  2 years  

     [tex]P(x) =[/tex]$25,000

So

       Since the profit rate is in million

    [tex]P(x) =[/tex]$25,000 = [tex]\frac{25000}{1000000} =[/tex]$0.025 millon dollars

So  

       [tex]0.025 = {\frac{1}{2} e^{-2^2}} + Z[/tex]  

=>    [tex]Z = 0.025 - {\frac{1}{2} e^{-2^2}}[/tex]  

       [tex]Z = 0.016[/tex]  

So the profit function becomes

         [tex]P(x) = \frac{1}{2} e^{-x^2} +0.016[/tex]

Answer:

268.08 inches3

Step-by-step explanation:

the volume rounded to the nearest tenth is 268.08 in³.

Volume, which is measured in cubic units, is the 3-dimensional space occupied by matter or encircled by a surface. The cubic meter (m3), a derived unit, is the SI unit of volume. Volume is another word for capacity.

given the radius of a basketball is 4 inches.

Since basketball has the shape of a sphere,

thus from the general formula of the volume of the Sphere:

Volume = 4/3 πr³

Where r is the radius

in our case

r = 4

Thus volume = 4/3 π 4³

The volume of basketball = 268.08 in³

therefore, the volume of the given basketball is 268.08 in³.

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Answer:

[tex]9<99<999[/tex]

[tex]999>99>9[/tex]

Step-by-step explanation:

We have that:

If a<b and b<c, then a<b<c.

Combining the two inequalities, we obtain: [tex]9<99<999[/tex]

In reverse, we can also write this as:

[tex]999>99>9[/tex]