PLEASE HELP ME!!!!

Question Help Challenge Last month, Stephen's neighbors paid him to take care of their fish when they went on vacation. He spent $3 of his earnings on an afternoon snack and $17 on a new book. Afterward, he had at most $9 left. How can you best describe how much Stephen's neighbors paid him?​

a) The rate in feet per second is 148.5 feet per second

b) The distance covered after 2 feet is 360.4 feet

We know that the rate has to do with how much the quantity is changing per unit time. In this case, we are looking at the rate of change of the Parachute's distance per second. It is important for us to say that this rate of change of the distance can also be shown to be the speed of the object.

We would now convert the rate to feet per second and we have;

1 meter per second = 3.3 feet per second

45 meters per second = 45 * 3.3/1

= 148.5 feet per second

Then we have;

s = ut + 1/2gt^2

s =distance

u = initial velocity

g = acceleration due to gravity

t = time taken

After 2 seconds;

s = (148 * 2) + (0.5 * 32.2 * 2^2)

s = 296 + 64.4

s = 360.4 feet

Learn more about velocity:https://brainly.com/question/18084516

#SPJ1

Answer:

Look at the image

Step-by-step explanation:

You can solve the problem like in the image

The x-axis of this graph is D) Individuals' life spans as a percentage of the maximum life span for the species.

In mathematics, "graph" can refer to (at least) two different things. The word "graph" in elementary mathematics refers to a plot or a function graph.

A graph is, in the language of mathematicians, a set of points and the connections between some subset of those points (which may be empty).

Making a diagram that shows the link between two or more objects is known as developing a graph. Create a graph by placing a series of bars on graph paper.

Depending on age, survival curves display the likelihood of survival in a population. The y-axis represents the number of survivors (on a log scale), while the x-axis represents time (indicating relative age). The graph's x-axis (horizontal line) should contain the independent variable, and the y-axis should contain the dependent variable. At the origin, where the coordinates are, the x and y axes intersect.

To read more about graph, visit https://brainly.com/question/17267403

#SPJ4

The Total Income from this caster in the first year = $184,822 approximately

What is Total Income?

Total income is the sum of all earnings, save those specifically mentioned in Section 12 of this Act, that a person receives during a certain accounting period, before any deductions are taken into account.

Given that : f(t)=12,000e^0.04t (dollars per month)

We could calculate our twelve calculations and evaluate this function once a month, but it would take some time. Instead, we should keep in mind that a continuous function can be represented by an integral. This indicates that we can simplify our calculation by simply taking the integral of this function between 0 and 12.

∫₀¹² 12000e⁰·⁰⁴t dt

Since we will transform this integrand into something for which we have the antiderivative, we may utilise u-substitution to simplify the calculation of this integral.

u=0.04t

du=0.04

dt0.04(0)=0

0.04(12)=0.48

To get the substitute for d u, we must slightly modify our integrand. This can be accomplished by adding 0.04 inside and canceling it outside by its reciprocal. The Fundamental Theorem of Calculus will then be used to calculate this definite integral.

12000 (1/0.04) ∫₀¹² 0.04e⁰·⁰⁴t dt = 30000 ∫₀⁰·⁴⁸ e⁴du

30000[tex]e^{u}[/tex] | ₀ ⁰·⁴⁸

30000(1.61607 -1)

184822.32

Therefore, the total income over the first year is approximately $184,822.

To learn more about Total Income visit :

brainly.com/question/21121917

#SPJ4

We can examine the relationship between PSA level and the other predictors by running a regression analysis. The regression analysis will allow us to determine the strength of the relationship and the direction of the relationship (positive or negative) between PSA level and the other predictors. For example, if we find that PSA level is positively correlated with age, then it indicates that PSA level increases with age. For the qualitative variable, vesinv, we can use dummy variables to represent the different categories. For example, if there are three categories of vesinv, we can create three dummy variables, each representing one category. After constructing the dummy variables, we can then add them to the regression model to examine the relationship between PSA level and vesinv.

To learn more about variables, visit:

brainly.com/question/17344045

#SPJ4

Using the concept of percentage, she earned a total of $1091 last week

A percentage is a number or ratio that can be expressed as a fraction of 100. Percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.

To determine the amount she earned last week, we need to calculate the amount in commission and add it with her weekly salary.

She received 3% commission on her sales and she made a sale of $29700.

Let's find 3% of 29700

3 / 100 = x / 29700

0.03 = x / 29700

x = 29700 * 0.03

x = 891

The amount she earns will be 891 + 200 = 1091

Janelle earned $1091 last week

Learn more on percentage here;

https://brainly.com/question/843074

#SPJ1

The binary representation of each of these hexadecimal numbers is given as follows:

a) 80E = 100000001110

b) 135AB = 00010011010110101011

c) ABBA = 1010101110111010

d) DEFACED = 1101111011111010110011101101

To convert a number from hexadecimal to binary, each hexadecimal character is converted to it's respective four bit binary code, given as follows:

Then, for example:

80E hexadecimal = 100000001110.

As:

More can be learned about the conversion of hexadecimal to binary at https://brainly.com/question/29598170

#SPJ1

Answer:B

Step-by-step explanation: I did the test

The function is set of ordered pairs in which each X element has only a Y element.

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

The correct statement which does not represent a relation that is a function.

Since,

The vertical line test is used to determine the function exists or not. If the vertical line is moved across the graph one point of the graph is a function.  The line moving from point to point is a function.

Hence the option A is correct.

Thus, The function is set of ordered pairs in which each X element has only a Y element.

Learn more about the function visit:

https://brainly.com/question/11624077

#SPJ2

The given function is an exponential growth function.

What is an exponential growth  function?

"There are two types of exponential functions: exponential growth and exponential decay. In the function f(x) = [tex]b^x[/tex] when b > 1, the function represents exponential growth. In the function f (x) = [tex]b^x[/tex] when 0 < b < 1, the function represents exponential decay."

Given function is: f(x) = 4 × [tex]2^x[/tex]

⇒ f(x) = 2² × [tex]2^x[/tex]

⇒ f(x) = [tex]2^2^+^x[/tex]

Here, it is clearly an exponential function. In the given function, 'x + 2' is an exponent.

Again, the base of the given function f(x) is 2. As 2 > 0.

Hence, the given function is an exponential growth function.

To learn more about exponential growth function, click on the link

https://brainly.com/question/11684347

#SPJ1

The value of x for which l is parallel to m is 41°

An angle is a figure in Euclidean geometry made up of two rays that share a terminal and are referred to as the angle's sides and vertices, respectively. The meeting of two planes can also create an angle. These are referred to as dihedral angles. The angle formed by the rays lying perpendicular to the two intersecting curves at their point of intersection can likewise be used to establish an angle between two intersecting curves.

In the depicted figure, l and m are parallel. A transversal crosses parallel lines, creating the appropriate angles. The angles created when two parallel lines cross any other line, whether they are corresponding or matching corners to the transversal.

(3x-43)°=80°

3x=80°+43°

3x=123°

x=41°

Therefore, the value of x is 41°

Hence, the value of x for which l is parallel to m is 41°.

To know more about angle, visit:

https://brainly.com/question/17039091

#SPJ1

Newsweek performed a poll in which 500 American parents were asked the question, “Would you prefer to have your child taught by a male or female for grades K-2?” 95% confidence interval for the poll is

(38.88%, 41.12%)

Generally, To construct a 95% confidence interval for the poll, we need to first calculate the margin of error. The margin of error for a poll is a measure of the precision of the estimate and is calculated based on the sample size, the level of confidence, and the standard deviation of the population.

In this case, the sample size is 500, the level of confidence is 95%, and the standard deviation of the population is unknown. We can approximate the standard deviation using the sample proportion of 40% as an estimate of the population proportion.

Using these values, the margin of error can be calculated as follows:

Margin of error = z * standard error

Where z is the critical value from the standard normal distribution for the desired level of confidence (in this case, 1.96 for a 95% confidence interval) and the standard error is calculated as:

Standard error = √(p * (1 - p) / n)

Where p is the sample proportion (40% in this case) and n is the sample size (500 in this case).

Substituting these values into the formula for the margin of error, we get:

Margin of error = 1.96 * √(0.4 * (1 - 0.4) / 500)

= 1.96 * sqrt(0.16 / 500)

= 1.96 * √(0.000032)

= 1.6 * 0.005656854

= 0.011168

So the margin of error for this poll is approximately 0.011168 or 1.12%.

To construct the 95% confidence interval, we need to add and subtract the margin of error from the sample proportion. The 95% confidence interval for the poll is, therefore:

40% ± 1.12%

= (38.88%, 41.12%)

This means that we can be 95% confident that the true population proportion of parents who would prefer to have their child taught by a male in grades K-2 lies within the interval between 38.88% and 41.12%.

Read more about confidence interval

https://brainly.com/question/24131141

#SPJ1

Answer:

Diana has 40 books in her collection.

Step-by-step explanation:

We can set up the equation 4x + x = 200 to represent the total number of books in the collection, where x is the number of books in Diana's collection and 4x is the number of books in Teri's collection. Solving for x, we get 5x = 200, so x = 40. This means that Diana has 40 books in her collection.

Answer:

Teri has 160 books

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

on edge

Answer:

  x = 3

Step-by-step explanation:

You want the root of the polynomial equation x(x -2)(x +3) = 18.

A graph of the equation in the form x(x -2)(x +3) -18 = 0 is attached. The solution is the x-intercept. It shows the only real root is x = 3.

There are many ways the polynomial can give rise to a system of equations. The basic idea is to write two expressions that are supposed to be equal to each other. The graphing calculator can show the value(s) of x that make them equal.

Dividing both sides of the given polynomial by (x -2)(x +3) gives the equation ...

  x = 18/((x -2)(x +3))

This can be graphed as two equations:

  y = x

  y = 18/((x -2)(x +3))

This is shown in the second attachment. It tells us the root is x=3. (Both sides of the "x=" equation have the value 3 at x=3.)

__

Additional comment

Here, you are asked to use a system of equations. A graphing calculator can usually find the solution more easily when the equation is written in the form f(x) = 0. Often x-intercepts are easier to identify than points where graphs cross each other.

The cost of the carpentering of the floor at the rate 12 rupees per square meter is 60 rupees.

A cuboid is a solid in three dimensions with six rectangular faces, eight vertices, and twelve edges. Three dimensions, including length, breadth, and height, define a cuboid. A cuboid with integer edges is referred described as being perfect.

We have the room as a cuboid.

And its length is 6 meters and height is 3 meters.

The volume of the cuboid = length x height x width

90 = 6 x 3 x width

width = 90 / 18

width = 5 meter.

To find the cost of carpentering the floor, the rate of Rs. 12 per square meter.:

12 x width = 12 x 5 = 60 rupees.

Therefore, at the rate of 12 rupees per square meter, the cost of the carpentering of the floor is 60 rupees.

To learn more about the cuboid;

https://brainly.com/question/29568631

#SPJ1

Thus after assuming the degrees of freedom equals 18 so the t-critical value will be =2.306

Degree of freedom {df}=18

We have to calculate the t-value such that 0.05 of the area under the curve is to the right of t

It means that, [tex]$\mathrm{P}(\mathrm{T} > \mathrm{t})=0.05$[/tex]

As we know, t distribution provides the cumulative probability

As the value of the total area under the t distribution will 1

So, we can write it as:

[tex]$$\mathrm{P}(\mathrm{T} \leq \mathrm{t})=1-\mathrm{P}(\mathrm{T} > \mathrm{t})$$$\mathrm{P}(\mathrm{T} \leq \mathrm{t})=1-0.05$$=0.95$[/tex]

Now, using excel, we can easily calculate the t-critical value as follows

=T. INV ( Probability, DF)

Where Probability is the area and DF is the degree of freedom,

Now we will enter these values in excel:

=T. INV (0.95,18)

t-critical value can also be found using t table

Look up for df = 18, in very first column

Now look up for 0.05 in one tail row

Now intersect both of them to get the t-critical value

We will get it as: 2.306

So t-critical value will be =2.306

[tex]$\mathrm{P}(\mathrm{T} > 2.306)=0.05$[/tex]

For more on t-critical value

https://brainly.com/question/14820237

#SPJ4

The value of [x] is equivalent to 9.72 units.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion.

The triangle similarity criteria are:

Given is a triangle as shown in the image.

The smaller triangle and the larger triangle are similar to each other. So, we can write -

3x - 4 = 10x - 72

- 4 + 72 = 10x - 3x

68 = 7x

x = 68/7

x = 9.72 units

Therefore, the value of [x] is equivalent to 9.72 units.

To solve more questions on similarity of triangles, we get -

https://brainly.com/question/8691470

#SPJ1

The graph of the compound inequality can be seen in the image at the end.

Here we have a compound inequality which is:

4x + 7 ≤ -37

5x + 3 > -7

First we need to isolate x in both of these inequalities, on the first one we will get:

4x + 7 ≤ -37

4x ≤ -37 - 7

4x≤ -44

x ≤ -44/4

x ≤ -11

The other inequality gives:

5x + 3 > -7

5x > -7 - 3

5x > -10

x > -10/5

x > -2

So the compound inequality is:

x > -2

x ≤ -11

To graph this we need to have a open circle at x = -2, and we need to graph a line to the right. And a closed circle at x = -11 and a line that goes to the left.

The number line is below

Learn more about inequalities:

https://brainly.com/question/24372553

#SPJ1

Solutions of x²-3x + 7 = 0 is 3 + √19/2 and 3 - √19/2.

The definition of a quadratic as a second-degree polynomial equation demands that at least one squared term must be included. It also goes by the name quadratic equations. The quadratic equation has the general form ax2 + bx + c = 0. where a, b, and c are numerical coefficients and x is an unknown variable. The phrase "quadratic" in mathematics refers to something that has to do with squares, the squaring operation, terms of the second degree, or equations or formulas that contain such terms. Latin's word for square is quadratus.

Given

Equation

x²-3x + 7 = 0

Using quadratic formula,

x = -b±√b² - 4ac/2a

x = -(-3) ± √((-3)² - 4×1×7/2×1

x = 3/2± √19 1/2i

x = 3 + √19/2 and 3 - √19/2

Solutions of x²-3x + 7 = 0 is 3 + √19/2 and 3 - √19/2.

To learn more about quadratic formula, visit:

https://brainly.com/question/9300679

#SPJ1

Given the distance 20 miles and the fact that if she drives 10 miles per hour faster, it takes her 4 minutes less to travel the distance, Nancy's new speed is 60 miles per hour.

The relation between distance and speed is given below:

s = v . t

Where:

s = distance

v = velocity or speed

t = time

In the given problem, let:

v = first speed

t = first time periods needed to travel 20 miles, in minutes

s = distance = 20 miles

Her new speed and new time is (v + 10) and (t - 4)

Hence,

v . t / 60 = 20, or

vt = 1200                  

v = 1200/t

After increasing the speed, the following holds:

(v + 10) (t - 4)/60 = 20

vt + 10t - 4v - 40 = 1200  

Substitute vt = 1200 and v = 1200/t

10t - 4800/t - 40 = 0

Multiply by t/10

t² - 4t - 480 = 0

(t - 24) (t+20) = 0

t = 24  or t = -20

Therefore, the time that satisfies the equation is t = 24 minutes.

Her original speed is:

v = 1200/t = 1200/24 = 50 miles per hour

Her new speed is:

v + 10 = 50 + 10 = 60 miles per hour

Learn more about distance here:

https://brainly.com/question/24872445

#SPJ4

A prompt is one to three sentences that pose a problem or a query that you must address in an essay.

In the given question we have to prompt the user to enter four numbers, each corresponding to a person's weight in pounds and store all weights in a list and output the list.

(1) weights = [float(input('Enter weight 1: \n')),

float(input('Enter weight 2: \n')),

float(input('Enter weight 3: \n')),

float(input('Enter weight 4: \n'))]

print("Weights:", weights)

(2) weights = [float(input('Enter weight 1:\n')),

float(input('Enter weight 2:\n')),

float(input('Enter weight 3:\n')),

float(input('Enter weight 4:\n'))]

print("Weights:", weights)

To learn more about weight in pounds link is here

brainly.com/question/28764202

#SPJ4

The right question is given below:

The corresponding trigonometric ratios are -6/√61,  5/√61, -6/5, -5/6,  √61/5, -√61/6

Sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant  (sec) are the six trigonometric ratios. A branch of mathematics called trigonometry in geometry deals with the sides and angles of a right-angled triangle.

First of all we need to find the distance between the point (5,-6) and origin (0,0)

Distance (r) = √(5-0)²+(-6-0)²

= √25+36

= √61

Now, P(5,-6) is compared with (x,y)

Now, sin Ф = y/r = -6/√61

cos Ф = x/r = 5/√61

tan Ф = y/x = -6/5

cot Ф = 1/tan Ф = -5/6

sec Ф = 1/cos Ф = √61/5

cosec Ф = 1/sin Ф = -√61/6

The corresponding trigonometric ratios are -6/√61,  5/√61, -6/5, -5/6,  √61/5, -√61/6

To know more about trigonometric ratios visit:

brainly.com/question/25122825

#SPJ1

It is to be noted that the boat traveled a distance of 8.39 miles South, and 12.44 miles west. This is solved using trigonometric ratios principles.

Using the trigonometric ratio involving the right triangle, we can answer how far the boat moved northward and westward, or the vertical and horizontal components of the displacement vector.

Solving for the horizontal component Vₓ, we'll be using the ratio of the sine function with regard to angle 34°

Thus,

Sin 34° = Vₓ/ 15

Vₓ = 15 * (Sin 34°)

= 15 * 0.55919290

Vₓ  = 8.39 miles.

Solving for the vertical component of, V[tex]_{y}[/tex] we'll be using the ratio of Cosine Function with respect to the angle 34°

Cos 34° = V[tex]_{y}[/tex] / 15

V[tex]_{y}[/tex] = 15 * Cos 34°

V[tex]_{y}[/tex]= 15 * 0.82903757255

V[tex]_{y}[/tex] = 12.44 miles.

Thus, the boat traveled a distance of 8.39 miles South, and 12.44 miles west.

Learn more about trigonometric ratios:
https://brainly.com/question/25122825
#SPJ1

Step-by-step explanation:

So you have 5/8 and you want the equivalent fraction to have a denominator of 40. You put 5/8=X/40 and find for x.

First, multiply both sides by 40

5/8*40=x

Express 5/8 * 40 as a single fraction.

5*40/8=x

Multiply 5 40 to get 200.

200/8=x

Divide 200 by 8 to get 25.

25=x

Swap sides so that all variable terms are on the left-hand side.

x=25

Answer:

show the whole question

Step-by-step explanation:

The maximum force on the rectangular floor tile is 32 N.

Force is the product of mass and acceleration.

To calculate the maximum force, we use the formula below

Formual:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the maximum force is 32 N.

Learn more about force here: https://brainly.com/question/388851

#SPJ1

The values are y₁=-0.5, y₂=-3.25, y₃=-7.825 and y₄=-15.3125 when the initial - value problem y' = y-2x. y(2)=1.

Given that,

Use Euler's method with step size 0.5 to compute the approximate y-values y₁, y₂, y₃ and y₄ of the solution of the initial - value problem y' = y-2x. y(2)=1.

We have to find the values y₁

We know that,

At Euler's approach, the curve of the solution can be roughly approximated at steps of h by the tangent in each interval (i.e., by a series of brief line segments). In general, using a short step size improves approximation accuracy.

By Euler approximation,

y₁ = y₀+hf(x₀,y₀)

=1+0.5(1-2(2))

=1-1.5

y₁=-0.5

Similarly,

y₂=-3.25, y₃=-7.825 and y₄=-15.3125

Therefore, The values are y₁=-0.5, y₂=-3.25, y₃=-7.825 and y₄=-15.3125 when the initial - value problem y' = y-2x. y(2)=1.

To learn more about values visit: https://brainly.com/question/24503916

#SPJ4

Confidence interval for the mean score of all students is (91.679, 98.321)

Given:

Sample mean = 95

Standard deviation = 6.6

The confidence interval is the range of values that you expect your estimate to fall between a certain percentage of the time if you run your experiment again or re-sample the population in the same way.

We have to construct a 99% confidence interval for the mean score of all the students.

Sample Standard Error =

[tex]\frac{Standard Deviation}{\sqrt{n} } \\= \frac{6.6}{\sqrt{30} }[/tex]

= 1.205

t-value for the 99% confidence interval = 2.756

(use the t-tables for this)

Margin of error = 2.756 x 1.205 = 3.321

If you are asked to report the confidence interval, you should include the upper and lower bounds of the confidence interval.

So, for the 99% confidence interval:

(95 - 3.321, 95 + 3.321) = (91.679, 98.321)

This is the final confidence interval.

To learn more about confidence intervals:

brainly.com/question/24131141

#SPJ4

The simplified form of the expression 12c + 8k - 8 - 6c + 6, combining the like term is 6c + 8k - 2.

An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations like subtraction and addition.

To simplify an expression means rewriting the same algebraic expression with no like terms or to write an equivalent expression which contains no similar terms.

Therefore, let's simplify the expression with no like terms.

12c + 8k - 8 - 6c + 6

combine the like terms

12c - 6c + 8k - 8 + 6

Therefore, the simplified expression is 6c + 8k - 2

learn more on expression here:https://brainly.com/question/17069266

#SPJ1

a) The group of points labeled X are the non-outlier scores, while point Y is an outlier score.

b) The association between the variables is positive.

There are two possible classifications for the associations between variables, as follows:

For this problem, the variables are given as follows:

As the number of assignments submitted increases, the test scores also increases, hence there is a positive relationship between these two variables.

The point Y is an outlier, as the student got a considerably worse grade than expected, meaning that combined with his low score on the assignments, the student may have considerable difficulties in the subject.

The graph is given by the image shown at the end of the answer.

More can be learned about association between variables at https://brainly.com/question/16355498

#SPJ1