HELP ME OUT THANKS SO MUCH

The motion of the arrow, described by the kinematic equation for the height, h(t) = 60·t - 0.8·t² are as follows;

(a) The velocity after 1 second is 58.4 m/s

(b)  The arrow hits the moon after 75 seconds

(c) The velocity of the arrow when it hits the moon is 60 m/s

(d) The arrow reaches the maximum height  in37.5 seconds.

A kinematic equation is an equation that describes the motion of an object moving under constant acceleration.

The kinematic (equation) function for the height of the arrow is; h(t) = 60·t - 0.8·t²

The initial velocity of the arrow = 60 m/s

(a) The velocity of the arrow = The rate of change of the height, therefore;

v = h'(t) = 60 - 2 × 0.8·t = 60 - 1.6·t

The velocity after 1 second = h'(1) = 60 - 1.6 × 1 = 58.4

The velocity of the arrow after 1 second is 58.4 m/s

(b) When the arrow hits the moon, we get;

h(t) = 0, therefore;

h(t) = 60·t - 0.8·t² = 0

( 60 - 0.8·t)·t = 0

t =  0  or 60 - 0.8·t = 0

t = 60/0.8 = 75

The time the arrow hit the moon is 75 seconds after being shot

(c) The velocity of the arrow when it hits the moon is  found using the equation;

h'(37.5) = 1.6 × 37.5 = 60

The velocity when it hits the moon, the velocity is 60 m/s

(d) The motion of the arrow is symmetrical, therefore, the time it takes the arrow to reach the the maximal height is the time it takes the arrow to reach back to the moon surface, which indicates;

The time it takes the arrow to reach maximum height is half the time it takes the arrow to hit the moon after being shot = 75/2 seconds = 37.5 seconds

Learn more about kinematic equation of motion here:

https://brainly.com/question/24458315

#SPJ1

The width of a rectangle when it's area is 36 square centimeter and it’s length 9 centimeter is 4vm.

From rte information, the rectangle is 36 square centimeter and it’s length 9 centimeter. It should be noted that the the area of a rectangle is calculated thus:

Area = Length × Width

36 = Length × Width

Width = 36 / Length

Width = 36 / 9

Width = 4.

The width of the rectangle is 4cm

Learn more about area on:

brainly.com/question/25292087

#SPJ1

Complete question

A Rectangle is36 square centimeter and it’s length 9 centimeter. Fund the width.

Answer:

Step-by-step explanation:

obtuse.

The given function in slope-intercept should be used to complete the table of values as follows;

x                     y

9                    4

6                    2

0                    -2

-3                   -4

A function that relates the distance (d) traveled to the time (t) is d = 120t.

A graph of the function is shown in the image attached below and it is a linear function.

Mathematically, the slope-intercept form of a line can be calculated by using this equation:

y = mx + c

Where:

Next, we would use the given function in slope-intercept to complete the table of values as follows;

When y = 9, the value of x is given by:

y = 3x/2 + 3

9 = 3x/2 + 3

3x/2 = 9 - 3

3x/2 = 6

3x = 12

x = 12/3

x = 4.

When y = 6, the value of x is given by:

y = 3x/2 + 3

6 = 3x/2 + 3

3x/2 = 6 - 3

3x/2 = 3

3x = 6

x = 6/3

x = 2.

When y = 0, the value of x is given by:

y = 3x/2 + 3

0 = 3x/2 + 3

3x/2 = -3

3x = -6

x = -6/3

x = -2.

When y = -3, the value of x is given by:

y = 3x/2 + 3

-3 = 3x/2 + 3

3x/2 = -3 - 3

3x/2 = -6

3x = -12

x = -12/3

x = -4.

Mathematically, a constant of proportionality (speed) for this train's journey (distance) can be represented with the following mathematical expression:

d = kt

Where:

Next, we would determine the constant of proportionality (k) as follows:

Constant of proportionality (k) = d/t

Constant of proportionality (k) = 360/3

Constant of proportionality (k) = 120

Therefore, the required function that relates the distance (d) and time (t) is given by;

d = kt

d = 120t

Read more on slope-intercept form here: brainly.com/question/1884491

#SPJ1

The simple interest on 1600 with a 6% interest rate for 2 years is $192.

The simple interest simply means the method that's used to calculate the interest that's charged on a loan or money given out.

In this situation, we want to calculate the simple interest on 1600 with a 6% interest rate for 2 years. This will be calculated thus:

Simple interest = Principal × Rate × Interest

Simple interest = $1600 × 6% × 2

Simple interest = $1600 × 0.06 × 2

Simple interest = $192

The interest is $192.

Learn more about interest on:

brainly.com/question/25793394

#SPJ1

Complete question

Calculate the simple interest on 1600 with a 6% interest rate for 2 years.

Answer: there will be 4/7 of 7/4 groups in 1. and for 3÷7/4=1.71428571429.

Step-by-step explanation: I hope this helps.

If an orchard has 468 pear trees and The number of rows exceeds the number of trees per row by 8. the number of trees that are in each row would be 18

We have to define T as the number of trees that are in a row.

Then we have to define t + 8 as the number of rows that we have

This would give us the equation that is written as

t(t + 8) = 468

then we would have

t² + 8t -468 = 0

We would have to find the factors of 468 which when inputted in the equation would give us the value 468

t(t + 8) = 468

This factor would be 18

such that

18 ( 18 + 8) = 468

18 * 26 = 468

468 = 468

Hence the number of trees that are in each row would be 18

Read more on the equation here: https://brainly.com/question/13859965x

#SPJ1

Answer:

y=-2/3x+2

Step-by-step explanation:

multiply -2/3 by the x coordinate (3) and set up your equation in y=mx+b format using the y coordinate (-4=-2+b) -4/-2 is 2. Now keep your original slope and your equation is y=-2/3x+2

Answer: N = 5

Step-by-step explanation:

Answer: [tex]\boxed{y=\frac{3}{4}x- \frac{9}{2} }[/tex]

Step-by-step explanation:

Given the points: (2, -3) and (-2, -6)

using the slope formula, lets calculate the slope,

[tex]\frac{-6+3}{-2-2} =\frac{3}{4}[/tex]

Using point-slope form lets solve,

[tex]y+3=3/4(x-2)\\\\\boxed{y=\frac{3}{4}x- \frac{9}{2} }[/tex]

Answer:i is 20.1

Step-by-step explanation:

The scatterplot that shows a negative correlation is graph (b)

In this question, the graphs represent the given parameter

From the graphs, we have the following observations

To determine the graph with a negative correlation, we make use of the following statements

From the list of options, we have

Graph (b) that shows increase - decrease relationship

Hence, the scatter plot is (b)

Read more about correlation at

https://brainly.com/question/16355498

#SPJ1

Answer:

3

Step-by-step explanation:

LK is around half of AB, which is 6. Half of 6 is 3.

Answer:

Equipamiento para 8 jugadores

Explanation:

Porque la diferencia de dinero no es muy grande ni muy pequeña, por lo que obtienes equipamiento para más jugadores a un buen precio.

The equation that represent each situation, in terms of x, is

The number of monthly movies watched, x, that would make the two plans have an equal monthly cost is 6 movies.

Let

Plan A:

A = 19 + 0.50x

Plan B:

B = 13 + 1.50x

Equate A and B

19 + 0.50x = 13 + 1.50x

collect like terms

19 - 13 = 1.50x - 0.50x

6 = x

Hence,

x = 6 movies

In conclusion, the number of monthly movies watched to have an equal amount is 6 movies.

Read more on algebra:

https://brainly.com/question/4344214

#SPJ1

If y is the unknown number, the equation of the line for the given condition is y/3+38=96 and the value of y will be 228.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that, the condition is "If a number divided by 3 is increased by 38, the result is 96".

Let y be the unknown number.

The equation for the following word problem is,

y/3+38=96

The equation is solved in further steps,

(y+114)/3=96

y+114=96×3

y+114=342

y=342-114

y=228.

Thus, if y is the unknown number, the equation of the line for the given condition is y/3+38=96 and the value of y will be 228.

Learn more about the equation here,

https://brainly.com/question/10413253

#SPJ1

Answer: A, B and C

Step-by-step explanation:

Step-by-step explanation:

Given any three side lengths of a right triangle, the longest side is the hypotenuse.

The side lengths  of a right triangle must satisfy the Pythagorean Theorem.

Pythagorean Theorem:

Option A:

True

Option B: 2.5, 6, 6.5

Option C:

Since all are true, the side lengths in Options A, B and C forms a right triangle,

Answer:

Side lengths a , b , c form a right triangle if, and only if, they satisfy a² + b² = c² . We say these numbers form a Pythagorean triple

Step-by-step explanation:

What equation to solve what problem?

Answer:

P(X > 2.6) = 0.0475 = 4.75%

Step-by-step explanation:

Let X is the random variable that represents percent of childhood asthma prevalence.

We want to find out the probability that the  mean childhood asthma prevalence for the sample is greater than 2.6%

The z-score corresponding to 1.67 is 0.9525

P(X > 2.6) = 1 - 0.9525

P(X > 2.6) = 0.0475

P(X > 2.6) = 4.75%

Therefore, there is 4.75% probability that the mean childhood asthma prevalence for the sample is greater than 2.6%

How to use z-table?

Step 1:

In the z-table, find the two-digit number on the left side corresponding to your z-score. (e.g 1.6)

Step 2:

Then look up at the top of z-table to find the remaining decimal point in the range of 0.00 to 0.09. (e.g. if you are looking for 1.67 then go for 0.07 column)

Step 3:

Finally, find the corresponding probability from the z-table at the intersection of step 1 and step 2.

The value of angle RPQ in the circle is 115 degrees.

The intersecting chords theorem, also known as the chord theorem, is an elementary geometry statement that describes a relationship between the four line segments formed by two intersecting chords within a circle.

If two chords intersect inside a circle, then the measure of the angle formed is one-half the sum of the measure of the arcs intercepted by the angle and its vertical angle.

Therefore,

∠RPQ = 1  / 2 (arc angle RQ + arc angle SA)

arc angle RQ = 175 degrees

arc angle SA = 55 degrees

Hence,

∠RPQ  = 1 / 2 (175 + 55)

∠RPQ  = 1 / 2 (230)

∠RPQ  = 115 degrees.

The angle is 115°.

learn more on circle theorem here:

brainly.com/question/24509783

#SPJ1

Answer:

[tex]\dfrac{x}{3}+\dfrac{3}{y}[/tex]

Step-by-step explanation:

Given fraction:

[tex]\dfrac{xy+9}{3y}[/tex]

[tex]\textsf{Apply the fraction rule} \quad \dfrac{a+b}{c}=\dfrac{a}{c}+\dfrac{b}{c}:[/tex]

[tex]\implies \dfrac{xy}{3y}+\dfrac{9}{3y}[/tex]

Rewrite 9 as 3 · 3:

[tex]\implies \dfrac{xy}{3y}+\dfrac{3 \cdot 3}{3y}[/tex]

Cancel the common factor y in the first fraction and the common factor 3 in the second fraction:

[tex]\implies \dfrac{x\diagup\!\!\!\!y}{3\diagup\!\!\!\!y}+\dfrac{\diagup\!\!\!\!3 \cdot 3}{\diagup\!\!\!\!3y}[/tex]

[tex]\implies \dfrac{x}{3}+\dfrac{3}{y}[/tex]

Answer:

148cm

Step-by-step explanation:

Answer:

f(4) = 99

Step-by-step explanation:

22 times 4 is 88, 88 plus 11 is 99.

Step-by-step explanation:

What you are trying to do, it solve for the zeros of the rational function. To find the domain of composite function,

[tex] \frac{x}{x - 1} [/tex]

Substitute x/(x-1) for every x you see.

[tex] \frac{ \frac{x}{x - 1} }{ \frac{x}{x - 1} - 1} = \frac{x(x \\ - 1)}{1} = x(x - 1)[/tex]

We know that the function domain can not be 1, this functions works for all reals, so our domain is

All reals except 1.

Answer:

-27

(negative number)

Step-by-step explanation:

-b/2a = -(-16)/2(1) = 16/2 = 8

                       x       +          8

                 x   x^2                8x

                 +

                 8    8x                64

So we got 64, but 64 is not 37 so we need to change that by subtracting 27 from it.

64 - 27 = 37

So the final answer (in vertex form) is:

(x+8)^2 - 27

(-27) is the number being added

The expression that shows how many comic books Tessa has is 14t

From the question, we have the following parameters that can be used in our computation:

Tessa = t times as many as Joseph

Joseph = 14 comic books

These parameters means that

Tessa = t times Joseph

So, we have

Tessa = t * Joseph

Substitute the known values in the above equation, so, we have the following representation

Tessa = t * 14

Evaluate

Tessa = 14t

Hence, the expression is 14t

Read more about expressions at

https://brainly.com/question/22019327

#SPJ1

Hence, the budgeted cost left in his saving is [tex]300-24=276[/tex] $.

What is the cost?

The concept of cost is a key concept in Economics. It refers to the amount of payment made to acquire any goods and services.

Here given that,

Aarav has budgeted $ [tex]300[/tex] to spend on hanging planters and raised garden beds. Each hanging planter costs $ [tex]16[/tex], and a raised bed costs [tex]1. 5[/tex] times as much as a hanging planter.

So,

The total cash he used to buy the hanging planter is [tex]16(1.5)=24[/tex]$.

So, the budgeted cost left in his saving is [tex]300-24=276[/tex] $.

Hence, the budgeted cost left in his saving is [tex]300-24=276[/tex] $.

To know more about the cost

https://brainly.com/question/13542740

#SPJ1