A football is kicked up from ground level at an initial upward velocity of 80 ft./s. The equation h=-16t^2 + 80t give the height h of the football after t seconds. What are realistic values for t?

Answer:

x = 44/7

Step-by-step explanation:

7x+3 = 47

Subtract 3 from each side

7x+3-3 = 47-3

7x = 44

Divide by 7

7x/7 = 44/7

x = 44/7

Answer:

like what do you want to remember.

Answer:

Amir 20 Rita 45

Step-by-step explanation:

20/4=5

5*9=45

so this satisfices the ration 4:9

Answer:

Amir : 20 sweets and Rita : 45 sweets

Step-by-step explanation:

Rita has 25 more in all answers. to get the answer, this is to see which one : 4:9 ; 20:45.

we multiply 4 and 45 and 9 and 20. if we multiply them, both answers are 180. this means it is equal and that is the answer.

Element that would be more effective in accepting electrons - Chlorine

Element that would be the  best insulator - As

Element that would combine with sulfur - Rb

We know that in a bonding situation, it is possible to have electrons closer to one of the bonding atoms than the other. In such case, the electron cloud is seen to be closer to a given atom. The atom to which the electron cloud is closer is said to be more electronegative.

In the periodic table electronegativity is a property that tends to increase from the left hand side to the right hand side of the periodic table.

Learn more about electronegativity:https://brainly.com/question/17762711

#SPJ1

Answer:

61.2

Step-by-step explanation:

base=6

height=10

Area of parellelogram=base x height

=6x 10.2

=61.2 sq.ft

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE

Answer:

KPL= 64 degrees JPL= 116 degrees

Step-by-step explanation:

2x+24+4x+36=180

combine like terms

6x+60=180

6x=120

x=20

2(20)+24=64

4(20)+36=116

The crucial value Zg 22 required to create an 80% confidence interval is roughly 1.28, rounded to the closest hundredth place. The area in one tail outside of the 80% confidence interval (a/2) is 10%.

The a/2 (the area in one tail outside of the 80% confidence interval) and the critical value Zg 22, can be found as,

1. Determine the total area outside the confidence interval: Since the confidence interval is 80%, the area outside the interval is 100% - 80% = 20%.

2. Calculate a/2: Divide the area outside the interval by 2 to find the area in one tail. In this case, a/2 = 20%/2 = 10%.

3. Find the critical value Zg 22: To determine the critical value (Z-score) associated with the 80% confidence interval, look up the corresponding Z-score in a standard normal distribution table or use a calculator or software that can compute the inverse of the standard normal cumulative distribution function (also called the Z-score calculator or the percentile calculator). In this case, you will look for the Z-score that corresponds to 90% (80% confidence interval plus one tail area), which is approximately 1.28.

So, the area in one tail outside of the 80% confidence interval (a/2) is 10%, and the critical value Zg 22 needed to construct an 80% confidence interval is approximately 1.28, rounded to the nearest hundredth place.

Learn more about "confidence interval": https://brainly.com/question/17097944

#SPJ11

To prove that two triangles are similar, we must show that they have the same shape, but not necessarily the same size. This can be done by showing that the corresponding angles of the two triangles are equal and that the corresponding sides are in proportion.

To do this, we can use the Side-Side-Side (SSS) Similarity Theorem. This theorem states that if all three pairs of corresponding sides of two triangles are in proportion, then the two triangles are similar. To prove this, we must show that the ratio of each pair of corresponding sides is equal.

For example, let's say we have two triangles ABC and DEF. To prove that these two triangles are similar, we must show that the ratio of AB to DE is equal to the ratio of BC to EF. We can do this by solving the following equation:

AB/DE = BC/EF

If the equation is true, then the two triangles are similar.

We can also use the Angle-Angle-Angle (AAA) Similarity Theorem to prove that two triangles are similar. This theorem states that if all three pairs of corresponding angles of two triangles are equal, then the two triangles are similar. To prove this, we must show that the measure of each pair of corresponding angles is equal.

For example, let's say we have two triangles ABC and DEF. To prove that these two triangles are similar, we must show that the measure of angle A is equal to the measure of angle D, the measure of angle B is equal to the measure of angle E, and the measure of angle C is equal to the measure of angle F.

If the measures of the corresponding angles are equal, then the two triangles are similar.

Therefore, to prove that two triangles are similar, we must show that either the corresponding sides are in proportion (using the SSS Similarity Theorem) or the corresponding angles are equal (using the AAA Similarity Theorem).

To know more about triangles:

https://brainly.com/question/27996834

#SPJ4

Answer:

-x=3-4x+6

3x=3+6

3x=9

X=3

Step-by-step explanation:

-x = 3 - 4x + 6

Simplify:

-x = -4x + 9

Add 4x to both sides

3x = 9

Divide both sides by 3:

X = 3

Answer:

C

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

B , becausse when percipitation occurs you sweat which is how your body releases heat and cools you down.

When we exercise and the body needs to release heat and cool itself, it engages in the process of b. Perspiration

Perspiration:

When we are exercising therefore and we begin to sweat, this just means that the body is quite hot and needs to cool itself down.

In conclusion, the body uses perspiration to cool itself.

Find out more at https://brainly.com/question/2456079.

Answer:

h = 54 feet

Step-by-step explanation:

The equation for the volume of a cone is V = \(\frac{1}{3}\) × π × r² × h.

You have the volume, which is 8,138.88, and the radius of the base, which is 12.

V = 8,138.88

h = 12

π = 3.14

When you plug everything you know into the equation, you get:

V = \(\frac{1}{3}\) × 3.14 × r² × h.

8,138.88 = \(\frac{1}{3}\) × 3.14 × (12)² × h

After you multiply everything on the right side, you come out with:

8,138.88 = 150.72 × h

To find h, you can divide each side by 150.72.

8,138.88 ÷ 150.72 = 54 feet!

Answer:

Step-by-step explanation:

In order to meet the sample assumption associated with parametric statistics, the number of subjects needed depends on the specific statistical test being used. Generally, the rule of thumb is to have a minimum of 30 subjects in each group being compared.

However, this number may increase or decrease depending on factors such as the effect size, variability in the data, and the statistical power desired.

It is important to have enough subjects so that the data is normally distributed, and there is enough content loaded to meet the assumptions of the statistical test.

To know more about statistics refer here

https://brainly.com/question/31577270#

#SPJ11

Answer: 9x - 6y

Step-by-step explanation:------------------------

Answer:All geometric sequences are exponential functions.

Step-by-stepexpanation:

An exponential function is a mathematical function in the form of f(x) = a^x, where a is a constant known as the base, and x is the variable. A geometric sequence is a sequence of numbers where each term is obtained by multiplying the previous term by a fixed constant, known as the common ratio. This means that the terms in a geometric sequence can be written in the form a, ar, ar^2, ar^3, ..., where a is the first term and r is the common ratio. By definition, this is equivalent to the exponential function f(x) = a*r^x, which has the same form as an exponential function. Therefore, all geometric sequences are exponential functions.

The area of a rhombus can be found by multiplying the length of one of its sides by the height of a perpendicular line from the center to a side.

The height of the rhombus is the distance from the center of the rhombus to one of its sides, perpendicular to that side.

The formula for the area of a rhombus can be written as A = s*h, where A is the area, s is the length of one of the sides of the rhombus, and h is the height of the rhombus.

It's important to note that this method of finding the area of a rhombus without diagonals can only be used when the rhombus is a regular polygon, a polygon with all sides and angles congruent. When the rhombus is not a regular polygon, then you can find the area by using the diagonals.

Additionally, it's important to mention that a rhombus can be defined as a parallelogram with all sides congruent or a square with its angles not 90 degrees.

To know more about area of a rhombus on the link below:

https://brainly.com/question/12783973#

#SPJ11

Assuming you have access to the standard deviation (σk), you can substitute its value into the equation along with the given Z-score and desired width to determine the minimum required sample size (k) that guarantees the desired probability.

To determine the number of samples required, we can utilize the properties of the Gaussian distribution and the concept of confidence intervals. Given that mk(x) follows a Gaussian distribution, we can express it as:

mk(x) ~ N(μk, σk^2)

where μk represents the mean and σk^2 represents the variance of the distribution.

To ensure that mk(x) falls between 67 and 73 with a probability of 0.925, we need to find the appropriate confidence interval.

The Z-score corresponding to a 92.5% probability is approximately 1.96 (for a two-tailed test). The Z-score represents the number of standard deviations from the mean.

The width of the confidence interval can be calculated using the following formula:

Width = 2 * Z-score * (σk / sqrt(k))

Here, k represents the number of samples.

Since the Z-score and desired width are given, we can rearrange the formula to solve for k:

k = (2 * Z-score * σk / Width)^2

Plugging in the values, we have:

k = (2 * 1.96 * σk / (73 - 67))^2

Now, it's worth noting that the value of σk (the variance) is not provided in the question. Consequently, without knowing the specific distribution parameters or further details about the data, we cannot calculate an exact value for k.

However, assuming you have access to the standard deviation (σk), you can substitute its value into the equation along with the given Z-score and desired width to determine the minimum required sample size (k) that guarantees the desired probability.

Learn more about probability   from

https://brainly.com/question/30390037

#SPJ11

Answer:

a and d

Step-by-step explanation:

v and w are parallel lines

R is the transversal

Alternate exterior means on the opposite sides of the transversal and outside of the parallel linea

a and d are alternate exterior angles

Answer:

(9, -5)

Step-by-step explanation:

To find the vertex of the function h(x), we need to apply the given transformation to the vertex of the original function f(x).

The function h(x) = f(x - 3) - 4 represents a horizontal shift of 3 units to the right and a vertical shift of 4 units downward from the original function f(x).

Given that the vertex of f(x) is (6, -1), we can apply the horizontal shift of 3 units to the right by adding 3 to the x-coordinate of the vertex, resulting in (6 + 3, -1) = (9, -1).

Next, we apply the vertical shift of 4 units downward by subtracting 4 from the y-coordinate of the vertex, giving us (9, -1 - 4) = (9, -5).

Therefore, the vertex of the function h(x) is (9, -5).

Answer:

(3.4/100)*115 = $3.91

Step-by-step explanation:

Divide by 100% and multiply by 115 (100%+15%)

Answer: Percentage of cats = 28%

Therefore, percentage of dogs = (100-28)%

= 72%

Step-by-step explanation:

hope this helps have a great night❤️

The statement holds true for the base case and it holds true for any k=n assuming it holds true for k=n, we can conclude that the statement holds true for all positive integer values of k. Hence, if we remove the root of a \($\mathrm{k}^{\text {th }}$\) order binomial tree, it results in k binomial trees of the smaller orders.

The statement to be proven is: "If we remove the root of a \($\mathrm{k}^{\text {th }}$\) order binomial tree, it results in \($\mathrm{k}$\) binomial trees of the smaller orders."

We will prove this statement by mathematical induction.

Base case k=1 :

Inductive step:

Suppose the statement holds true for some \($\mathbf{k}=\mathbf{n}$\), i.e., if we remove the root of an \($\mathbf{n}^{\text {th }}$\) order binomial tree, it results in \($\mathrm{n}$\) binomial trees of the smaller orders. We need to show that it also holds true for \($\mathbf{k}=\mathbf{n}+1$\)

using definition of mathematical induction.

Consider a \($(\mathrm{n}+1)^{\text {th }}$\) order binomial tree, which can be formed by joining two \($\mathrm{n}^{\text {th }}$\) order binomial trees. If we remove the root of this \($(\mathrm{n}+1)^{\text {th }}$\) order binomial tree, we are left with two nth order binomial trees. By the induction hypothesis, each of these \($\mathbf{n}^{\text {th }}$\) order binomial trees will result in n binomial trees of the smaller orders. Hence, the result of removing the root of the \($(n+1)^{\text {th }}$\) order binomial tree will be n + n = 2n binomial trees of the smaller orders, which implies that the statement holds true for \($\mathrm{k}=\mathrm{n}+1$\) as well.

For more such questions on  binomial tree

https://brainly.com/question/29612326

#SPJ4

Answer:

the answer is C

because for an equation to be an equation of a parabola, the coefficient of x^2 and y^2 has to be 1

ANSWER:

\(5.9 \: pounds\)

STEP-BY-STEP EXPLANATION:

Gasoline put into one gallon

\( = \frac{129.8}{22} = \frac{64.9}{11} = 5.9\)

D

__________________________________

\((\frac{1}{2^3})^2\)

\((\frac{1}{8})^2\)

\(\frac{1}{64}\)

__________________________________

\(Determine\ whether\ (\frac{2^0}{2^3})^2\ and\ \frac{1}{64}\ are\\ equivalent:\)

\(True\)

I hope this helps you

:)

The administration's willingness to pay to save a student's statistics life is no more than option c) $100,000.

To estimate the administration's willingness to pay to save a student's statistical life, we need to calculate the cost per statistical life saved. Currently, the probability of a student dying from the plague is 1/3,000. If the rats are eradicated, this probability is reduced to zero. The cost of eradicating the rats is $1,000,000. To calculate the cost per statistical life saved, we divide the cost by the number of statistical lives saved.

The number of statistical lives saved is the product of the number of students on campus (30,000) and the reduction in probability (1/3,000).
Cost per statistical life saved = $1,000,000 / (30,000 * (1/3,000))
                         = $1,000,000 / (30,000 * 1/3,000)
                         = $1,000,000 / 10
                         = $100,000
Therefore, the correct answer is option c) $100,000.

To know more about the statistics, visit:

https://brainly.com/question/29359084

#SPJ11

The equation of the parabola with focus (2,5) and directrix x=18 is (x - 18)² + (y - 5)² = (y - (5 + (18 - 2) / 2))².

A parabola is a conic section, the intersection of a right circular conical surface and a plane parallel to a generating

straight line of that surface.

The focus of a parabola is a fixed point on the interior of a parabola used in the formal definition of the curve.

The directrix is a straight line perpendicular to the axis of symmetry and placed symmetrically with respect to the focus.

The axis of symmetry is the line through the focus and perpendicular to the directrix.

The vertex of a parabola is the point where its axis of symmetry intersects the curve. It is the point where the parabola changes direction or "opens

up" or "opens down.

The directrix is a fixed straight line used in the definition of a

parabola. It is placed such that it is perpendicular to the axis of symmetry and at a distance from the vertex equal to the

distance between the vertex and focus. It is the line that is equidistant to the focus and every point on the curve.Here's

the solution to the given problem:

The distance between the directrix and the focus is equal to p = 16 (since the directrix is x = 18, the parabola opens to the left, so the distance is measured horizontally)

The vertex is (h,k) = ((18+2)/2,5) = (10,5)

Then we can use the following formula: (x - h)² = 4p(y - k)

Substitute the vertex and the value of p. (x - 10)² = 64(y - 5)

Expand and simplify. (x - 10)² + (y - 5)² = 64(y - 5)

The equation of the parabola is (x - 10)² + (y - 5)² = 64(y - 5).

for such more question on parabola

https://brainly.com/question/17987697

#SPJ11

The constant of proportionality for x gallons water and y miles is k = 25

The ratio connecting two given numbers in what is known as a proportional relationship is the constant of proportionality.

Constant ratio, constant rate, unit rate, constant of variation, and even rate of change are other names for the constant of proportionality.

A proportionate connection is simple to represent as a straight line on a coordinate plane. It is a straight line because it is directly proportional; the slope serves as the constant of proportionality.

The proportionate change along the x and y axes never varies, hence the slope or increase is constant.

According to the question,

x(gallons)     y(miles)

 1                       25

 2                      50

 3                      75

 4                      100

As we know, If y is proportional to x

=> y ∝ x

=> y = kx , where k is constant of proportionality

Using the table,

when x = 1 => y = 25

=> 25 = k(1)

=> k = 25

To know more about Constant of Proportionality here

https://brainly.com/question/29126727

#SPJ4

Answer:

1. Paul has mixed up the translation of the ordered pair.

New location: (1, 5)

2. Option C :  E = (3, 2)  F = (8, 4)  G = (5, 7)

Step-by-step explanation:

An ordered pair is a pair of numbers, (x,y) , written in a particular order.

It is often used to represent a point on a coordinate plane.

1.  From inspection of the diagram, the market is located at (3, 8)

Paul's mistake is that he has mixed up the translation of the ordered pair.  He has moved the market 3 to the left and 2 units down instead of the required 2 to the left and 3 units down.

The correct ordered pair for the new location of the market is (1, 5)

2. For each coordinate point (x, y), the first number is the x-coordinate (along the x-axis) and the second number is the y-coordinate (along the y-axis).  

E = (3, 2)

F = (8, 4)

G = (5, 7)