Need help ASAP pls. Need it asap

Answer:

Total surface area of cone = 316.355 ft²

Step-by-step explanation:

Given:

Slant height of cone (l) = 9 feet

Radius of cone (r) =  6.5 feet

Find:

Total surface area of cone.

Computation:

Total surface area of cone = πr(l+r)

Total surface area of cone = (3.14)(6.5)(9+6.5)

Total surface area of cone = (3.14)(6.5)(15.5

Total surface area of cone = 316.355 ft²

Ms. Maynard grates 23/30 of a block of cheese, leaving the fraction of 7/30 of the cheese. Mr. Connor then eats 3/30 of the cheese, leaving the fraction of 4/30 of the cheese remaining.

Let us suppose the total block of cheese as 1.

If Ms. Maynard grates 23/30 of a block of cheese, then the fraction of cheese left is:

Remaining cheese = 1 - 23/30 = 7/30

After Mr. Connor eats 3/30 of the cheese, the fraction of cheese left is:

Remaining cheese = 7/30 - 3/30 = 4/30

Therefore, 4/30 of the cheese is left over after grating by  Ms. Maynard and  Mr. Connor respectively.

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False. To obtain a representative sample, it is not necessary to sample a large fraction of the population.

The representativeness of a sample depends on its ability to accurately reflect the characteristics and variability of the population it is drawn from. The size of the sample required for representativeness is determined by the level of precision desired and the inherent variability within the population.

Sampling a large fraction of the population, also known as a census, is one way to achieve representativeness, but it is often impractical, time-consuming, and costly. Instead, researchers often use statistical techniques to select a smaller subset of the population that can still provide accurate estimates.

The key factor in obtaining a representative sample is the use of random sampling techniques, such as simple random sampling or stratified sampling, which ensure that every individual in the population has an equal chance of being included in the sample. By using appropriate sampling methods and considering the variability within the population, it is possible to obtain a representative sample without sampling a large fraction of the population.

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The type of sampling used by the BLS (Bureau of Labor Statistics) for its National Compensation Survey, where employers are divided by size in the second stage of sampling, is known as stratified sampling.

Stratified sampling involves dividing the population into subgroups or strata based on certain characteristics or criteria. In this case, the BLS divides the employers into different size categories. Within each stratum, a sample is then randomly selected to represent that specific subgroup. This approach allows for a more precise estimation of employment costs within each size category. By using stratified sampling, the BLS ensures that the sample is representative of the different employer sizes and allows for more accurate and reliable estimates of employment costs at a national level.

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So there are 6 permutations possible with the letters "ABC". These are: ABC, ACB, BAC, BCA, CAB, CBA.

Permutations are a way of arranging objects in a specific order. The number of permutations of a set of n distinct objects is given by n!, where n! denotes the factorial of n.

In the case of the letters "ABC", there are three distinct objects: A, B, and C. Therefore, the number of permutations possible with these letters is:

3! = 3 x 2 x 1 = 6

This means that there are 6 possible ways of arranging the letters "ABC" in a specific order. These permutations are:

ABC

ACB

BAC

BCA

CAB

CBA

To see why there are 6 possible permutations, consider the first position. There are three letters to choose from, so there are three possible choices for the first position. Once the first letter is chosen, there are two letters left to choose from for the second position. Finally, there is only one letter left to choose from for the third position. Therefore, the total number of permutations is:

3 x 2 x 1 = 6

In summary, the number of permutations of a set of n distinct objects is given by n!, and in the case of the letters "ABC", there are 3! = 6 possible permutations: ABC, ACB, BAC, BCA, CAB, and CBA.

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Answer:

3x + 6= 34

6-6. 34-6= 28

3x=28

3/3 28/3=

x= 9.3333, or rounded up 10

good luck! :)

Answer:

x=−2.790168

Step-by-step explanation:

Solve Exponent.

3^(x+6)=34

log(3x+6)=log(34) (Take log of both sides)

(x+6)*(log(3))=log(34)

x+6=

log(34)

log(3)

x+6=3.209832

x+6−6=3.209832−6 (Subtract 6 from both sides)

x=−2.790168

Answer:

2nd option is correct

Step-by-step explanation:

x +2y=14

2y = -x + 14

y= -x/2 +7

Answer:

-1/2

Step-by-step explanation:

So I am not certain but there is a website for things these.

Answer:

there is 3 terms I think

Step-by-step explanation:

Answer: the answer is b,

Step-by-step explanation:

the girls are longer cause their shoes combined is 12 and 3/8

Answer:

Both daughters shoes combines

Step-by-step explanation:

8 5/8 plus 3 6/8 = 12 3 /8

"The combines length of the daughters shoes are longer since they are 12 and 3/8"

5/8 plus 6/8 = 11/8

11/8= 1 3/8

11+ 1+ 3/8 = 12 3/8

The orthogonal projection of the vector v = [9] onto the plane -2x1 - x2 - 3x3 = 0 is [3, 1, -1]. To find the orthogonal projection, we need to find a vector in the plane that is closest to v.

The projection vector can be obtained by subtracting the component of v that is orthogonal to the plane from v itself.

The equation of the plane -2x1 - x2 - 3x3 = 0 can be rewritten as [2, 1, 3] ⋅ [x1, x2, x3] = 0, where ⋅ denotes the dot product. This equation represents the normal vector to the plane.

Next, we can find the component of v that is orthogonal to the plane by projecting v onto the normal vector. The projection of v onto the normal vector is given by (v ⋅ n) / ||n||^2 * n, where ||n|| denotes the magnitude of the normal vector.

Plugging in the values, we have (v ⋅ n) / ||n||^2 * n = (9 ⋅ [2, 1, 3]) / ||[2, 1, 3]||^2 * [2, 1, 3] = (9 ⋅ 5) / 14 * [2, 1, 3] = [45/14, 45/28, 135/14].

Finally, we subtract this component from v to obtain the orthogonal projection: [9] - [45/14, 45/28, 135/14] = [9 - 45/14, 0 - 45/28, 0 - 135/14] = [3, 1, -1].

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Answer: 12 m

Step-by-step explanation:he path of a football has been modeled by the equation:

Answer:

Step-by-step explanation:

For the first possible answer (y = -4):

I don't know how to explain the second one, I'm sorry!

Answer:

y = -8

y = -4

Step-by-step explanation:

The equation |6 + y| = 2 can only be true when 6 + y = -2 and 6 + y = 2. This is because:

|-2| = 2

and

|2| = 2

First, lets find for what y values the equation 6 + y = -2 is true. Solve for y:

6 + y = -2

Subtract 6 from both sides.

y = -8

So now we have one of the values of y.

To find the second value of y, we must solve for y in the equation 6 + y = 2:

6 + y = 2

Subtract 6 from both sides.

y = -4

So the two values of y are -8 and -4.

I hope you find my answer and explanation to be helpful. Happy studying.

The inequality you use to solve the question is 36 + 4x < 95.

We have given that,

Rahul pay a flat cost of $36 per month, rate is $4 per gigabyte and rahul want to keep his bill under $95 per month

we have to find inequality.

We know that total charge per month is,

C(x) = Flat cost + rate per gigabyte × number of gigabyte

let the number of gigabyte be x

putting the values we get,

C(x) = 36 + 4x

and Rahul want to keep his bill under $95 per month.

Therefore

36 + 4x < 95

⇒      4x > 59

          x < 14.75

Hence the inequality you use to solve the answer is 36 + 4x < 95.

Inequality refers to the phenomenon of unequal and/or unjust distribution of resources and opportunities among numbers of a given society. The term inequality may mean different things to different people and n different contexts.

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We have a variable x that is normally distributed with:

A. Using the data above we must find the 56th-percentile for the random variable x.

First, we need to find the z-score associated with this percentile. How we do that? We must find the value of z that solves the following equation:

Based on this, we find that the solution is z = 0.151 because from the normal table we see that:

Therefore, the percentile we are looking for is computed using the following formula:

B. We must find the proportion of the values for the random variable x between 82 and 89.

In mathematical terms, in this case, we must compute the following probability:

Again, we must obtain the z-scores to solve this. The corresponding z-values needed to be computed are:

Now, because the variable x is a normal distribution, then the variables Zlow and Zup have a normal distribution. Therefore, the probability is computed in the following way:

C. Finally, we must compute the following probability:

The corresponding z-value needed to be computed is:

Again, because x follows a normal distribution, then the variable Zlow has a normal distribution and the probability is computed as:

Summary

The results are:

A. 76.208

B. 0.1507

C. 0.0168

If the incenter, circumcenter, centroid, and orthocenter are always inside the triangle, the correct answer is an acute triangle (option B).

In an acute triangle, all three angles are less than 90 degrees. The incenter, which is the center of the inscribed circle, lies inside the triangle. The circumcenter, which is the center of the circumscribed circle, also lies inside the triangle.

The centroid, which is the point of intersection of the medians, is located inside the triangle as well. Finally, the orthocenter, which is the point of intersection of the altitudes, is inside the triangle in an acute triangle.

In contrast, a right triangle has one angle measuring 90 degrees, an obtuse triangle has one angle greater than 90 degrees, and an isosceles triangle has two equal side lengths. These types of triangles may have some of the points (incenter, circumcenter, centroid, orthocenter) located outside the triangle.

Therefore, the correct answer is option B, acute triangle.

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Answer:

(I suppose that we want to find the probability of first randomly drawing a red checker and after that randomly drawing a black checker)

We know that we have:

12 red checkers

12 black checkers.

A total of 24 checkers.

All of them are in a bag, and all of them have the same probability of being drawn.

Then the probability of randomly drawing a red checkers is equal to the quotient between the number of red checkers (12) and the total number of checkers (24)

p = 12/24 = 1/2

And the probability of now drawing a black checkers is calculated in the same way, as the quotient between the number of black checkers (12) and the total number of checkers (23 this time, because we have already drawn one)

q = 12/23

The joint probability is equal to the product between the two individual probabilities:

P = p*q = (1/2)*(12/23) = 0.261

T

Answer:

X= -4

Step-by-step explanation:

Answer:

x = -4

Step-by-step explanation:

Distribute the -2 to the parentheses:

-2(-4x - 3) -5x + 3 = -3

8x + 6 - 5x + 3 = -3

Add like terms:

3x + 9 = -3

Solve for x:

3x = -12

x = -4

So, the answer is x = -4

Answer:

13 - 5

=8

this is your answer

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Answer:

36

Step-by-step explanation:

The area of the base is 4.5 square units.

A triangle is a polygon that has three sides and three vertices. It is one of the basic figures in geometry.

The area of the triangle is defined as the product of half the base and the height of the triangle.

The area of the triangle = 1/2 x b x h

We are given that;

Legs of isosceles triangle= 3 units

Number of layers= 4

Now,

Find the area of the base, which is an isosceles right triangle with legs of 3 units. To do this, we can use the formula:

A=21​bh

where A is the area, b is the base, and h is the height. In this case, b and h are both 3 units. For example:

A=21​(3)(3)

A=29​

A=4.5

Therefore, by the area of triangle the answer will be 4.5 square units.

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The radius of convergence R for the given power series is 1.

(a) ΣHere, we have the power series given by:Σan(x - c)n where an = n!n^n and c = 0.As we know that the radius of convergence R of the given power series can be found by using the formula given below:R = 1 / lim⁡|an / an_+1|  = lim⁡|an+1 / an|We are given the following sequence of terms:an = n!n^nand we need to find the radius of convergence of the power series Σan(x - c)n.aₙ₊₁ = (n + 1)! / (n + 1)^(n + 1)On substituting, we get:aₙ₊₁ / aₙ = [n^n / (n + 1)^(n + 1)]This implies that lim⁡|an / an_+1| = 1/eR = 1 / lim⁡|an / an_+1|  = lim⁡|an+1 / an|= e Therefore, the radius of convergence R for the given power series is e.(b) Σ(n+1)2x"Here, we have the power series given by:Σ(n+1)2x"where an = (n+1)2 and c = 0.As we know that the radius of convergence R of the given power series can be found by using the formula given below:R = 1 / lim⁡|an / an_+1|  = lim⁡|an+1 / an|We are given the following sequence of terms:an = (n+1)2and we need to find the radius of convergence of the power series Σ(n+1)2x".aₙ₊₁ = (n + 2)²On substituting, we get:aₙ₊₁ / aₙ = (n + 2)² / (n + 1)²This implies that lim⁡|an / an_+1| = 1R = 1 / lim⁡|an / an_+1|  = lim⁡|an+1 / an|= 1

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Answer:

4x + 5x + 9 = 180 ( sum of co-interior angles)

or,9x + 9 = 180

or,9x = 180 -9

or,9x = 171

or, x = 171÷9

:.` x = 19

Answer:

(1, -1)

Step-by-step explanation:

we isolate y in the first equation

2x+y=1

-2x.  -2x

y=1-2x

and now we fill y into second equation

4x-2(1-2x)=6

4x-2+4x=6

8x-2=6

   +2 +2

8x=8

/8 /8

x=1

and now to find y we insert x

2(1)+y=1

2+y=1

-2.   -2

y= -1

hopes this helps

Answer:

какие e

Step-by-step explanation:

Answer and work down below. Let me know if you have any questions

we express the result in base $b$:  $b^5 - 2b^4 + 3b^3 - 2b^2 + 2b^1 + b^0$ (written in base $b$)

To find the result when the base-$b$ number $11011_b$ is multiplied by $b-1$ and then $1001_b$ is added, we can follow these steps:

Step 1: Multiply $11011_b$ by $b-1$.
Step 2: Add $1001_b$ to the result from step 1.
Step 3: Express the final result in base $b$.

To perform the multiplication, we can expand $11011_b$ as $1 \cdot b^4 + 1 \cdot b^3 + 0 \cdot b^2 + 1 \cdot b^1 + 1 \cdot b^0$.

Now, we can distribute $b-1$ to each term:

$(1 \cdot b^4 + 1 \cdot b^3 + 0 \cdot b^2 + 1 \cdot b^1 + 1 \cdot b^0) \cdot (b-1)$

Expanding this expression, we get:

$(b^4 - b^3 + b^2 - b^1 + b^0) \cdot (b-1)$

Simplifying further, we get:

$b^5 - b^4 + b^3 - b^2 + b^1 - b^4 + b^3 - b^2 + b^1 - b^0$

Combining like terms, we have:

$b^5 - 2b^4 + 2b^3 - 2b^2 + 2b^1 - b^0$

Now, we can add $1001_b$ to this result:

$(b^5 - 2b^4 + 2b^3 - 2b^2 + 2b^1 - b^0) + (1 \cdot b^3 + 0 \cdot b^2 + 0 \cdot b^1 + 1 \cdot b^0)$

Simplifying further, we get:

$b^5 - 2b^4 + 3b^3 - 2b^2 + 2b^1 + b^0$

Finally, we express the result in base $b$:

$b^5 - 2b^4 + 3b^3 - 2b^2 + 2b^1 + b^0$ (written in base $b$)

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A hypothesis test for two proportions is a statistical procedure used to determine if the proportions of two different groups are statistically different from each other.

A hypothesis test for two proportions is a statistical procedure used to determine if the proportions of two different groups are statistically different from each other. The first step is to determine the null hypothesis, which states that there is no difference between the proportions of the two groups. Then, the alternative hypothesis is formed, which states that there is a difference between the proportions of the two groups. The next step is to calculate the test statistic, which is typically a z-score or a t-score. This test statistic is then used to calculate the p-value, which is the probability of obtaining the observed result if the null hypothesis is true. If the p-value is less than the predetermined significance level, then the null hypothesis is rejected in favor of the alternative hypothesis and it can be concluded that there is a difference between the proportions of the two groups.

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