pls help with my edge math

Answer:

Step-by-step explanation:

16 - 8 which will give 8. The 16 is plus, the 8 is minus. They do have different signs.

15 - 7 which gives 8. Same explanation.

108 - 100 = 8 Same method.

The average of the sampling distribution for the percentage of students at UCF who intend to cast a ballot in the upcoming presidential election is 0.72.

We need to multiply the population proportion (p) by the sample size (n).

Given that 72% of UCF students plan to vote, we have p = 0.72.

The sample size is given as 1250, so n = 1250.

Let's denote the proportion of UCF students who plan to vote in the presidential election as p. According to the given information, p = 0.72.

So, The average of the sampling distribution for the percentage of students at UCF who intend to cast a ballot in the upcoming presidential election is 0.72.

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13) The best prediction is that the college will need about 480 cookies.

14) The correct answer is Bus 47, with a median of 16.

For Question 13:

The total number of students surveyed is 225. Out of these, 27 students prefer cookies. So, we can estimate that approximately (27/225) * 4000 = 480 students will prefer cookies.

Therefore, the best prediction is that the college will need about 480 cookies.

For Question 14:

The correct graph for displaying the data is a bar graph with the title "Favorite Sport" and the x-axis labeled "Sport" and the y-axis labeled "Number of Students". The first bar should be labeled "Basketball" and go to a value of 17, the second bar should be labeled "Baseball" and go to a value of 12, the third bar should be labeled "Soccer" and go to a value of 27, and the fourth bar should be labeled "Tennis" and go to a value of 44.

For Question 15:

We can see that the median for Bus 18 is (10+12)/2 = 11 and the median for Bus 47 is (16+16)/2 = 16. Therefore, Bus 47 typically has the faster travel time.

The correct answer is Bus 47, with a median of 16.

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Answer:

It increases national debt. This happens because the unemployed don't participate in doing taxes because they do not have a job. It also effects other businesses because people with less money won't buy as many things which leads to other companies losing money.

Answer:

it should be 5

Step-by-step explanation:

-4 to 1 is 5, 1 to 6 is 5 so yea.

                                       ❊❊                  HI                  ❊❊

                                            THE SLOPE WILL BE 5

  ⎧  ⁍ . ⁍ ⎫

  ⎟  >    >⎟

  ⎝          ⎠

        ⎝⎠

Answer:

the dimension of the rectangle is 4 cm and 6 cm respectively

Step-by-step explanation:

The computation of the dimension of the rectangle is shown below:

Given that

The perimeter of the rectangle is 20 cm

The width be x

So, the length would be 2 1 ÷ 4 x - 3 i.e.  9 ÷ 4x - 3

Now as we know that

Perimeter of the rectangle = 2 (length + width)

20 = 2 (9 ÷ 4x - 3 + x)

20 = 9 ÷ 2x - 6 + 2x

20 = 4.5x - 6 + 2x

26 = 6.5x

x = 4 cm

Now the length would be

= 9 × 4  ÷ 4  - 3

= 6 cm

Hence, the dimension of the rectangle is 4 cm and 6 cm respectively

Answer:

Step-by-step explanation:

-9+4.8=q-4.8+4.8

-4.2=q-4.8+4.8

-4.2=q

q=-4.2

The percentage of the class that are 13 years old can be found to be

First, we need to find the total number of students in the given class which would be:

= Number of 13 year olds + Number of 15 year olds

= 21 + 27

= 48 students

The percentage of students who are aged 13 would therefore be:

= Number of 13 year old students / Total number of students in class x 100 %

= 21 / 48 x 100 %

= 0. 4375 x 100 %

= 43. 75 %

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Answer:

(-2,0)

Step-by-step explanation:

When finding the x intercept, substitute 0 for Y. -20/10=-2.

I hope this helps

Answer:

The x-intercepts of that is (-2,0).

To solve problems, construct one-variable equations and inequalities.

As opposed to an inequality, which links two different values, an equation declares that two expressions are equal.

Create one-variable equations and inequalities, then utilize them to solve issues.

Include simple rational and exponential equations as well as those resulting from linear and quadratic functions.

In order to answer word problems, students should be able to decipher them and create equations and inequalities.

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Answer: 1

f(x) = 3x - 4 => f(3) = 3.3 - 4 = 9 - 4 = 5

g(x) = x² => g(2) = 2² = 4

=> f(3) - g(2) = 5 - 4 = 1

Step-by-step explanation:

In quadrant III, with sin(θ) = -4/7, we find that cos(θ) = -3/7, tan(θ) = 4/3, sec(θ) = -7/3, csc(θ) = -7/4, and cot(θ) = 3/4.

Given that sin(θ) = -4/7 and θ is in quadrant III, we can determine the values of various trigonometric functions using the information provided.

In quadrant III, sin(θ) is negative and cos(θ) is negative or positive. Since sin(θ) = -4/7, we can use the Pythagorean identity sin^2(θ) + cos^2(θ) = 1 to find cos(θ). Substituting the given value of sin(θ), we have (-4/7)^2 + cos^2(θ) = 1. Solving for cos(θ), we find that cos(θ) = -3/7.

Using the values of sin(θ) and cos(θ), we can find the remaining trigonometric functions. By definition, tan(θ) = sin(θ) / cos(θ). Substituting the given values, we have tan(θ) = (-4/7) / (-3/7) = 4/3.

The reciprocal functions can be found as follows: sec(θ) = 1 / cos(θ), csc(θ) = 1 / sin(θ), and cot(θ) = 1 / tan(θ). Substituting the values of cos(θ) and sin(θ), we find sec(θ) = -7/3, csc(θ) = -7/4, and cot(θ) = 3/4.

Therefore, in quadrant III, when sin(θ) = -4/7, the values of the trigonometric functions are: (a) cos(θ) = -3/7, (b) tan(θ) = 4/3, (c) sec(θ) = -7/3, (d) csc(θ) = -7/4, and (e) cot(θ) = 3/4 respectively.

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The theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

Theoretical probability of an event is the ratio of number of favourable outcome to the total expected number of outcome of that event.

Five students, Adriana, Ben, Chandra, Diana, and Ernesto, would each like one of the four spots at the regional science fair.

Their names are placed in a hat, and four names are chosen at random to decide who attends the fair.

The total number of ways 4 names can be taken out from 5 names is,

\(^5C_4\).

Here one spot needs to be fixed for Chandra. Now the total number of outcome remain 4 and favourable outcome remain 3.

Thus, the number of ways 4 names can be taken out such that it contains the name Chandra is

\(^4C_3\).

The theoretical probability that Chandra will be chosen as one of the science fair participants is,

\(P=\dfrac{^4C3}{^5C4}\\P=\dfrac{4}{5}\\P=0.8\\P=80\%\)

Thus, the theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

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Answer:18 days

Step-by-step explanation:

Here's a short table of heights:

 day 0: height = 1

 day 1: height = 1 + (1/2)(1) = 3/2

 day 2: height = (3/2) + (1/3)(3/2) = 3/2 + 1/2 = 2

The pattern of heights is ...

 (day, height) = (0, 1), (1, 1.5), (2, 2)

The plant is growing 1/2 its original height each day, so we can write the equation ...

 h = 1 + d/2

We want to find the number of days (d) that result in a height of 10 (ten times the original height).

 10 = 1 + d/2

 9 = d/2 . . . . subtract 1

 18 = d . . . . . multiply by 2

It took 18 days for the plant to grow to 10 times its original height.

Answer:

it would take 9 weeks for both of the plants to equally meet the same height which is 33 inches

Step-by-step explanation:

Can i please get branelist

The net of the right circular cylinder shown is made of:

2 circles and 1 rectangle that is not a square

The correct option is (D)

The net of a cylinder is a 2D structure made by unfolding it. It helps us to visualize the shape of a cylinder and its surface area. When we unfold a cylinder, we get a rectangle joined by two identical circles that form the top and the bottom bases of the cylinder shape.

Now, From the figure

We can easily see that, When we divide in three parts :

Top and bottom bases are two circles in shapes and middle one is become a rectangle in shape.

So, The right answer is :

2 circles and 1 rectangle that is not a square.

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For complete question, to see the attachment.

(a) The probability that Y₂₀ exceeds 1000  is 3.91 × 10⁻⁶.

(b)  The professor teach in order that the probability is n = 28.09 years.

The random variable Yₙ is defined as the total numbers of dollars paid in n years.

It is provided that Yₙ can be approximated by a Gaussian distribution, also known as Normal distribution.

The mean and standard deviation of Yₙ are:

μYₙ=40n

σYₙ =√100n

(a) For n = 20 the mean and standard deviation of Y₂₀ are:

μYₙ= 40n = 40×20 = 800

σYₙ = √100n = √100× 20 = 44.72

Compute the probability that Y₂₀ exceeds 1000 as follows:

P(Yₙ >100) = P( Yₙ - μYₙ/σYₙ > 1000 - 800/44.72)

                 = P(Z > 44.72)

                 = 1 - P(Z > 44.72)

                 = 0.00000391

By Using a z table for probability.

Thus, the probability that Y₂₀ exceeds 1000  is 3.91 × 10⁻⁶.

(b) It is provided that P (Yₙ > 1000) > 0.99.

   P(Yₙ >1000) = 0.99

⇒ 1 - P(Yₙ < 1000) = 0.99

⇒  P(Yₙ <1000) = 0.01

⇒ P(Z < z) = 0.01

The value of z for which P (Z < z) = 0.01 is 2.33.

Compute the value of n as follows:

    Z = Yₙ - μYₙ/σYₙ

⇒ 2.33   =  1000 - 40n/√100 n

⇒ 2.33 = 100/√n - 4√n

⇒ 5.4289 = (100 - 4n)²/n

⇒ 5.4289 = 10000 + 16n² - 800n/ n

⇒ 5.4289n = 10000 + 16n² -800n

⇒ 16n² - 805.4289n + 1000 = 0

The last equation is a quadratic equation.

The roots of a quadratic equation are:

n = -b ± √b-4ac/ 2a

a = 16

b = -805.4289

c = 10000

On solving the last equation the value of n = 28.09.

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The completed operations with the values of the exponents are:
1041 = 10^8
1010−4105 = 10^16

To complete the operations and fill in the value of the exponent for the result, let's break it down step by step:

1041 = 10(103)(105)

Here, we are multiplying 10 by 103 and then multiplying the result by 105. To find the exponent, we add the exponents when multiplying.

So, the exponent for the result is 3 + 5 = 8.

Therefore, the expression simplifies to 108.

1010−4105 = 10(104)4

In this case, we have 10 raised to the power of 104, and then we raise the result to the power of 4. When raising a power to another power, we multiply the exponents. So, the exponent for the result is 4 * 104 = 416. Hence, the expression simplifies to 1016.

Therefore, the completed operations with the values of the exponents are:

1041 = 10^8
1010−4105 = 10^16

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-12 -(-7) could not be a distance.

Distance:

Distance traveled is the total length of the path traveled between two positions. It can either be a 0 or a positive number that's mean it can never be a negative number.

So from the above-given statement we have

a) 19-7 = 12 (which is positive number)

b) -12 - (-7) = -12 + 7 = -5 ( which is a negative number)

c) -3-(-18) = -3 + 18 = 15 ( which is a positive number)

d) 14-(-6) = 14 + 6 = 20 ( which is a positive number)

Therefore option b i.e., -12 - (-7) cannot be a distance between two points on a number line.

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The value of a is -5 if the provided polynomial is divided by (3x + 2) option first -5 is correct.

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

\(\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n\)

The question is incomplete.

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

We have a polynomial:

3x² + 5x - 3

Which is divided by (3x + 2)

= (3x² + 5x - 3) ÷ (3x + 2)

\(\rm = \dfrac{\left(3x^2+5x-3\right)}{\left(3x+2\right)}\)

\(\rm =x+\dfrac{3x-3}{3x+2}\)

\(\rm =x+1+\dfrac{-5}{3x+2}\)

\(\rm =x+1-\dfrac{5}{3x+2}\)

By comparing with the given remainder.

a = -5

Thus, the value of a is -5 if the provided polynomial is divided by (3x + 2) option first -5 is correct.

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To find the mass of the rectangular region with the given density function rho(x, y) = 3 - y, where 0 ≤ x ≤ 4 and 0 ≤ y ≤ 3, we need to calculate the double integral of the density function over the region.

The mass of a region can be found by integrating the product of the density function and the area element over the region. In this case, the density function is rho(x, y) = 3 - y.

To calculate the mass, we need to set up the double integral over the rectangular region. The integral is given by:

M = ∬(0 to 4)(0 to 3) (3 - y) dA

To evaluate this integral, we integrate with respect to y first, and then with respect to x:

M = ∫(0 to 4) ∫(0 to 3) (3 - y) dy dx

Integrating with respect to y, we get:

M = ∫(0 to 4) [3y - (1/2)y^2] (0 to 3) dx

Simplifying the integral, we have:

M = ∫(0 to 4) (9/2) dx

Evaluating the integral, we get:

M = (9/2) * x | (0 to 4)

M = (9/2) * 4 - (9/2) * 0

M = 18

Therefore, the mass of the rectangular region is 18

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Answer:

C. five samples.

Step-by-step explanation:

The correct option 2 that is 30 children's tickets and 7 adult tickets were sold.

Given : A graph which has adult tickets in the x - axis

and children tickets in the y - axis

The marked point is  ( 30, 7 )

this means that the value of x axis 30 and y axis is 7

thus from the above information it is clear that there are 30 children's tickets and 7 adult tickets were sold.

So the correct option is Option 2

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Answer:

11.85

Step-by-step explanation:

(3^1\4) = \(3^{\frac{1}{4} }\)

(3^2) = \((3)^{2}\)

Applying the law of indices,

\(a^{m}\) x \(a^{n}\) = \(a^{(m+n)}\)

\(3^{\frac{1}{4} }\)  x  \(3^{2}\) = \(3^{\frac{1}{4} + 2}\)

        =  \(3^{\frac{9}{4} }\)

       = \(\sqrt[4]{3^{9} }\)

       = \(\sqrt[4]{19683}\)

       =  11.8445

       ≅ 11.84

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

What are the answers again??

Step-by-step explanation:

The sequence defined by a = 1 and d(n) = (n - 1)^2, for n ≥ 2, generates the first four members: 0, 1, 4, 9. The formula for d(n) can be conjectured as d(n) = (n - 1)^2. This conjecture can be proven by induction.

The sequence defined by a = 1 and d(n) = (n - 1)^2, for n ≥ 2, can be computed as follows:

For n = 1, a = 1 (given).

For n = 2, d(2) = (2 - 1)^2 = 1^2 = 1.

For n = 3, d(3) = (3 - 1)^2 = 2^2 = 4.

For n = 4, d(4) = (4 - 1)^2 = 3^2 = 9.

Based on these computations, we observe that the first four members of the sequence are 0, 1, 4, and 9. From this pattern, we can conjecture that the formula for d(n) is (n - 1)^2.

To prove this conjecture, we can use mathematical induction. The base case is n = 2, where d(2) = 1, and the formula (n - 1)^2 also yields 1. This confirms that the formula holds for the initial term.

Next, we assume that the formula holds for some arbitrary positive integer k, i.e., d(k) = (k - 1)^2.

Now we need to prove that it holds for k + 1.

Using the formula, we have d(k + 1) = ((k + 1) - 1)^2 = k^2.

On the other hand, we can directly compute d(k + 1) as (k + 1 - 1)^2 = k^2. Therefore, the formula holds for k + 1 as well.

By the principle of mathematical induction, we have proven that the formula d(n) = (n - 1)^2 holds for all positive integers n ≥ 2.

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A threshold effect is when a small change in one variable results in a noticeable change in another variable. In this example, a small 8% increase in salt content of the chips is enough to produce a noticeable change in the saltiness of the chips to the sample of consumers.

The snack manufacturer can calculate the increase in salt content of their chips needed to produce the threshold effect by first determining the baseline salt content of the chips. Once this is known, they can then calculate what percentage increase to the salt content is needed by multiplying the baseline salt content by 8%. For example, if the baseline salt content of the chips is 10%, then the 8% increase in salt content would be calculated as 10% x 8% = 0.8%. This means that the snack manufacturer needs to increase the salt content of their chips by 0.8% to reach the threshold effect desired by the sample of consumers.

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Answer: 19 3/5 x 20 2/5 = 9996/25 = 399 21/25