Help me with this math problem if u can.

Answer:  B.  (-3, 3.25)

Step-by-step explanation:  Imagine that the line is divided into 4 segments.  (3:1) Since A is at the upper right end of the line, go 3 segments down and left from A. That puts the x value at -3.

If you graph the line, it is evident that the y-value is at 3.25.

(It may be possible to use the Pythagorean Theorem to compute the lengths of line segments-- but this is a multiple-choice question!)

Answer:

B.) (-3, 3.25)

Step-by-step explanation:

I got it correct on founders edtell

Answer:

-4

Step-by-step explanation:

5 - 9 = -4

hope this helps...

Using a system of equations, it is found that the original number of students in Group B was of 120.

A system of equations is a set of equations involving multiple variables that are related, and then operations are made to solve these equations and identify the numeric value of each variable.

In the context of this problem, the variables are described as follows:

There are 270 total students, hence:

x + y = 270.

x = 270 - y. (as we want to find y).

If 30 students move to Group B from Group A, then there will be twice as many students in Group A as in Group B, hence:

x + 30 = 2(y - 30).

Replacing the relation of the first equation on the second, it is found that:

270 - y + 30 = 2y - 60

3y = 360

y = 360/3

y = 120.

The original number of students in Group B is of 120.

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The equation of the ellipse with focus at (-2,0) and vertices at (±7, 0) is given as follows:

x²/49 + y²/45 = 1.

The equation of an ellipse of center (h,k) is given by the equation presented as follows:

(x - h)²/a² + (y - k)²/b² = 1.

The center of the ellipse is given by the mean of the coordinates of the vertices, as follows:

Hence:

x²/a² + y²/b² = 1.

The vertices are at x + a and x - a, hence the parameter a is given as follows:

a = 7.

Considering the focus at (-2,0), the parameter c is given as follows:

c = -2.

We need the parameter c to obtain parameter b as follows:

c² = a² - b²

b² = a² - c²

b² = 49 - 4

b² = 45.

Hence the equation is given as follows:

x²/49 + y²/45 = 1.

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Answer:

Step-by-step explanation:

The probability of rolling a number greater than 2 is 10/10 or 100%.

When rolling a 12-sided die with the set of equally likely outcomes {3, 4, 5, 6, 7, 8, 9, 10, 11, 12}, we want to find the probability of rolling a number greater than 2.

Since all the numbers in the given set are greater than 2, we can determine the probability by simply considering the ratio of the favorable outcomes to the total possible outcomes.

In this case, there are 10 favorable outcomes (3 to 12) and 10 total outcomes.

Thus, the probability of rolling a number greater than 2 is 10/10, which simplifies to 1, or 100%

. So, when rolling this specific 12-sided die, you have a 100% chance of rolling a number greater than 2.

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Answer:

She deposits $17.00 each week

Step-by-step explanation:

You multiply 85 times 0.2 which gives you 17.

The confidence interval would include 1, and the number 1 would be in the confidence interval if we failed to reject H0.

If we failed to reject the null hypothesis H0: σ1² = σ2², we would conclude that there is not enough evidence to suggest that the variances of the two populations are significantly different.

In this case, the confidence interval for the ratio of the variances would contain 1, since a ratio of 1 would correspond to equal variances.

The confidence interval for the ratio of the variances can be calculated using the F-distribution, and can be expressed as:

[ F(α/2,n1-1,n2-1) , F(1-α/2,n1-1,n2-1) ]

where F(α/2,n1-1,n2-1) and F(1-α/2,n1-1,n2-1) are the values from the F-distribution corresponding to the lower and upper limits of the confidence interval, respectively.

If we failed to reject H0, then the calculated test statistic F would not be greater than the critical value F(1-α/2,n1-1,n2-1) or less than the critical value F(α/2,n1-1,n2-1).

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Answer:

1958.6

Step-by-step explanation:

2784.95−826.35

=2784.95−826.35

=2784.95+−826.35

=1958.6

Answer: 3,647.29

Step-by-step explanation:

You are going to put 2,784.95 on top of 826.35 on a piece of paper or put it into a calculator and add them together to get your total.

The estimated standard error for the sample mean is option (b) 2..

The estimated standard error of the sample mean is the standard deviation of the sampling distribution of the mean.

In this case, we are given that the sample size is n = 4, and the sum of squares of the sample is SS = 48. To estimate the standard error, we need to calculate the sample standard deviation first.

The formula to calculate the sample standard deviation is:

s = √(SS / (n-1))

Substituting the given values, we get:

s = √(48 / (4-1)) = √(16) = 4

Now, we can use the formula for estimated standard error to get the answer:

SE = s / √n = 4 / √4 = 2

Hence the correct option is (b).

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Answer:

See below.

Step-by-step explanation:

The answer would be either 15 or 15.75. I did the math and got 15.48.

-hope it helps

package 1 is 0.25 cents per ounce

package 2 is 0.23 cents per ounce

package 2 costs less by 0.02 cents

Step-by-step explanation:

there are 24 ounces in package 2. Divide cost by number of ounces to get the cost of 1 ounce.

Answer:

X = 12

Step-by-step explanation:

When a number increased by 4

Let that number = x

x + 4

is doubled...

2(x + 4)

the result is the same

=

when the number is increased by 20

x + 20

Find the number

2 (x + 4) = x + 20

2x + 8 = x + 20

2x - x = 20 - 8

x = 12

What does X equal? X equals 12

Check:

Insert the x = 12 into the equation;

2 (x + 4) = x + 20

2 (12 + 4) = 12 + 20

2 (16) = 12 + 20

32 = 32

The correct statement regarding the variation of the two measures is given as follows:

C. Yes, they vary directly. When one quantity increases, the other quantity also increases.

For this problem, we have that when the number of correct answers on the test increases, the score also does, hence the two quantities vary directly, and option c is the correct option for this problem.

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Answer:

Step-by-step explanation:

C=0.11×5,400=594

Nadia made a total of $594 last week in commission sales

b). To express the total amount she made in 2011, we derive the formula below;

Total amount (2011)=Average weekly commission× number of weeks in 2011

where;

Average weekly commission=$594

number of weeks in 2011=52

replacing;

Total amount (2011)=(594×52)=30,888

The total amount Nadia in commission in 2011=$30,888

Answer:

\( \frac{5001 + 5004}{2} = \frac{10005}{2} = 5002.5\)

The mean data for the set is 5002.5.

Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.

For the given situation,

The data in the set are 5001 and 5004

The formula of mean is

\(Mean = \frac{sum of all data}{number of data}\)

⇒ \(Mean = \frac{5001+5004}{2}\)

⇒ \(Mean = \frac{10005}{2}\)

⇒ \(Mean = 5002.5\)

Hence we can conclude that the mean data for the set is 5002.5.

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The probability of flipping the unfair coin given that we observed five tails in a row is approximately 0.9048

Let's define

A: the event of picking the unfair coin

B: the event of getting five tails in a row

We want to find the conditional probability of picking the unfair coin given that we observed five tails in a row, or P(A|B).

Using Bayes' theorem, we have

P(A|B) = P(B|A) × P(A) / P(B)

P(B|A) is the probability of getting five tails in a row given that we are flipping the unfair coin. Since the unfair coin is not fair, we don't know its probability of coming up as tails, but let's assume it has a probability of 0.9 of coming up as tails. Thus, P(B|A) = 0.9^5 = 0.59049.

P(A) is the prior probability of picking the unfair coin, which is 0.5 since we picked one of two coins at random.

P(B) is the total probability of getting five tails in a row, which is the sum of the probabilities of getting five tails in a row with the fair coin and the unfair coin.

The probability of getting five tails in a row with the fair coin is 0.5^5 = 0.03125. The probability of picking the unfair coin and getting five tails in a row is P(B|A) × P(A) = 0.59049 × 0.5 = 0.295245. Thus, P(B) = 0.03125 + 0.295245 = 0.326495.

Now we can calculate P(A|B)

P(A|B) = P(B|A) × P(A) / P(B) = 0.59049 × 0.5 / 0.326495 = 0.9048

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Answer:

\( \frac{168}{120} = \frac{21}{15} = \frac{7}{5} = 1.4\)

So the percent increase is 40%.

The percentage increase from 120 to 168 is 40%. This is calculated by finding the increase (48), dividing it by the original number (120), and multiplying the result by 100.

The question asks for the percentage increase from 120 to 168. To find this, we first determine the increase in the number, which is 168 - 120 = 48. The percentage increase is then calculated by dividing this increase by the original number (120 in this case), and then multiplying the result by 100 to get the percentage. So, the calculation would be (48/120) * 100 = 40. Therefore, the percentage increase from 120 to 168 is 40%.

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Answer:

there is noo triangle for me to answer this quiestioon

Step-by-step explanation:

Answer:

no pic

Step-by-step explanation:

Answer:

73.6

Step-by-step explanation:

The largest possible volume of the box, given the constraint of 1700 square centimeters of material, is approximately 18709.5437 cubic centimeters. This volume is achieved by making the base of the box with a side length of approximately 23.2379 centimeters.

To determine the largest possible volume of the box with a square base and an open top, we need to maximize the volume.

Let's assume that the length of each side of the square base is 's' centimeters, and the height of the box is 'h' centimeters.

The volume of a box with a square base is given by V = s² * h.

We have that the total surface area of the material available is 1700 square centimeters. The surface area of the box consists of the base and four sides, so we have:

Surface area = s²+ 4sh

Since the top is open, we don't need any material for it.

Now, we can rewrite the surface area equation as:

s² + 4sh = 1700

To maximize the volume, we can solve this equation for 'h' in terms of 's' and substitute it into the volume equation:

h = (1700 - s²) / (4s)

V = s² * [(1700 - s²) / (4s)

Simplifying further:

V = (1/4)(1700s - s³)

To determine the largest possible volume, we need to maximize this function. We can take the derivative of V with respect to s, set it to zero, and solve for 's'.

dV/ds = 1700/4 - (3/4)s²

Setting dV/ds = 0, we have:

1700/4 - (3/4)s² = 0

Simplifying further:

1700 = 3s²

s² = 1700/3

s ≈ 23.2379 cm

Substituting this value of 's' into the volume equation, we get:

V ≈ (1/4)(1700 * 23.2379 - (23.2379)^3)

V ≈ 18709.5437 cubic centimeters

Therefore, the largest possible volume of the box is approximately 18709.5437 cubic centimeters.

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Answer:

C

Step-by-step explanation:

basically see where each dot is and the number its beside and the number its above answer for example the first one is in between 20 and 30 so its 25 and its above 1  so it would 1, 25 u just do that for all the dots :)

The change in the nominal exchange rate, in Canada's perspective, is a depreciation of the Canadian dollar by 2.76%.

Nominal exchange rate is the price of one currency in terms of another currency. It represents the number of units of one currency that can be purchased with a single unit of another currency. In Canada's perspective, a change in nominal exchange rate means the value of the Canadian dollar in US dollars. So, to calculate the change in nominal exchange rate from Canada's perspective.

Nominal Exchange Rate = Real Exchange Rate x (1 + Inflation of Canada) / (1 + Inflation of US) Given, Real Exchange Rate of Canada

= 4.9% Inflation of Canada

= 8.5% Inflation of US

= 3.8%  Nominal Exchange Rate

= 4.9% x (1 + 8.5%) / (1 + 3.8%) Nominal Exchange Rate

= 4.9% x 1.085 / 1.038 Nominal Exchange Rate

= 5.3099 / 1.038 Nominal Exchange Rate

= 5.11 (rounded to two decimal places)

This means that if there were no inflation, the nominal exchange rate from Canada's perspective would have been 5.11 Canadian dollars per US dollar. But due to inflation, the Canadian dollar depreciated by 2.76% (calculated as (5.11 - 4.97) / 5.11 x 100%). Therefore, the change in the nominal exchange rate, in Canada's perspective, is a depreciation of the Canadian dollar by 2.76%.

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Given:

The semicircle with dimeter 6 cm.

Required:

FInd the area.

Explanation:

We have figure of semicircle and area of semicircle

Radius is half of diameter. That is radius equal 3cm.

The slope m of the tangent to the curve will be m = -3/a^2.

Calculating the slope of the tangent line to the curve y = 3/x at a point where x = a > 0 is an important mathematical concept. To do this, we will first need to find the derivative of the curve y = 3/x.

Let's start by taking a look at the equation for the slope of a line: m = (y2-y1) / (x2-x1). We'll use this equation to find the slope of the tangent line at the point (a, 3/a).

To do this, we'll need to calculate the derivative of the given equation, which is y' = -3/x^2.

At the point (a, 3/a), the derivative is equal to -3/a^2. Therefore, the slope of the tangent line at the point (a, 3/a) is m = -3/a^2.

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Answer:

$18.84

Step-by-step explanation:

volume = πr²L = (3.14)(1²)(12) = 37.68 cm³

37.68 cm³ x 0.50 per cm³ = $18.84

Answer:

C

Step-by-step explanation:

Black line

slope = Δy / Δx = -3 / 3 = -1

Y intercept = 3

LINE equation ( y = slope times x + y intercept): y = -x +3

Blue line

slope = Δy / Δx = 2 / 2 = 1

Y intercept = -2

LINE equation ( y = slope times x + y intercept): y = x -2

2) AE is congruent to ED, BE is congruent to ED (a bisector splits a segment into two congruent parts)

3) Angle AEB is congruent to angle DEC (vertical angles are congruent)

4) Triangle ABE is congruent to triangle CDE (SAS)