Which words describe this shape? Mark all that apply.A polygon(B) open shapepentagonD quadrilateral

QUESTION POSTED AT 15/01/2020 - 03:11 AM

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A cylindrical container is packaged inside a prism-shaped box. The box has a volume of 96 cubic units. If the container has a diameter of 4 units and a height of 6 units, what is the volume of the empty space between the cylinder and the box? Round the answer to two decimal places.

Answer:

The volume of the empty space is 20.57 unit³.

Step-by-step explanation:

Given,

The volume of the box = 96 cubic units,

Also, the cylindrical container is packed inside the box.

We know that,

The volume of a cylinder is,

V=\pi (r)^2 h

Where r is the radius of cylinder,

h is its height,

Here, r = \frac{4}{2} = 2 unit   ( Radius = Diameter / 2 )

And, h = 6 units

Thus, the volume of the cylindrical container is,

V=\pi (2)^2(6)

=\frac{22}{7}\times 4\times 6 = \frac{528}{7}\text{ cubic unit}

Hence, the volume of the empty space between the cylinder and the box = Volume of the box - Volume of the container

= 96 - \frac{528}{7}

=\frac{672-528}{7}

=\frac{144}{7}=20.5714285714\approx 20.57\text{ cubic unit}

ANSWERED AT 29/01/2020 - 05:33 PM


QUESTION POSTED AT 29/01/2020 - 05:33 PM

The expression a = 3b2 + 2 can be written in words as: the quantity a is equal to

A is equal to three multiplied by b squared plus two.

ANSWERED AT 29/01/2020 - 05:26 PM


QUESTION POSTED AT 29/01/2020 - 05:26 PM

Which phrase describes the variable expression z+8

The answer is z I believe there isn't anything else that can be the answer.

ANSWERED AT 29/01/2020 - 05:21 PM


QUESTION POSTED AT 29/01/2020 - 05:21 PM

ON A GRAPH WITH Y-VALUES RANGING FROM 1,010,020 TO 9,682,192, WHAT IS A REASONABLE SCALE TO USE ON A Y-AXIS WITH 10 TICK MARKS?

1: 1,000,000

Then you mark points 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 on the y-axis.

The origin is 0
1 is equivalent to 1,000,000
2 is 2,000,000
3 is 3,000,000 ...

and so on, until 10 which is 10,000,000



ANSWERED AT 29/01/2020 - 05:21 PM


QUESTION POSTED AT 29/01/2020 - 05:21 PM

Which statement describes the graph of the system of equations below? 1.5x + 0.2y = 2.68 1.6x + 0.3y = 2.98 The lines are parallel. The lines overlap at all points. The lines intersect at (1.6,1.4). The lines intersect at (3.1,0.5).

1.5x + 0.2y = 2.68....multiply by 0.3
1.6x + 0.3y = 2.98...multiply by - 0.2
------------------------
0.45x + 0.06y = 0.804 (result of multiplying by 0.3)
- 0.32x - 0.06y = - 0.596 (result of multiplying by - 0.2)
----------------------add
0.13x = 0.208
x = 0.208/0.13
x = 1.6

1.5x + 0.2y = 2.68
1.5(1.6) + 0.2y = 2.68
2.4 + 0.2y = 2.68
0.2y = 2.68 - 2.4
0.2y = 0.28
y = 0.28/0.2
y = 1.4

solution (they intersect at) (1.6,1.4)

ANSWERED AT 29/01/2020 - 05:18 PM


QUESTION POSTED AT 29/01/2020 - 05:18 PM

1.Which is an equation of a circle with center (-5, -7) and radius 6? 2.Which is an equation of a circle with center (5, 0) that passes through the point (1, 1)? 3.What is the center and radius of the circle with equation (x - 5)2 + (y + 3)2 = 16? 4.Which point is on the circle described by (x - 2)2 + (y + 3)2 = 4?

1. Equation of circle = (x - a)^2 + (y - b)^2 = r^2; where (a, b) is the centre of the circle and r is the diameter.
(x - (-5))^2 + (y - (-7))^2 = 6^2
(x + 5)^2 + (y + 7)^2 = 36
x^2 + 10x + 25 + y^2 + 14y + 49 = 36
x^2 + y^2 + 10x + 14y + 38 = 0

ANSWERED AT 29/01/2020 - 05:15 PM


QUESTION POSTED AT 29/01/2020 - 05:15 PM

The difference between two numbers is 5. six times the larger number is 8 times the smaller number. write a system of equations describing the given conditions. then solve the system by the substitution method and find the two numbers.

X - y = 5....x = 5 + y
6x = 8y

6(5 + y) = 8y
30 + 6y = 8y
30 = 8y - 6y
30 = 2y
15 = y

x - y = 5
x - 15 = 5
x = 15 + 5
x = 20

ur 2 numbers are : 20 and 15

ANSWERED AT 29/01/2020 - 05:03 PM


QUESTION POSTED AT 29/01/2020 - 05:03 PM

A person must be at least 42 inches tall to ride the Roller Coast at an amusement park. Let h represent the height of any person who meets the requirement. Write an inequality that describes h. A.h<=42 B.h<=-42 C.h>=42 D.h>=-42

The meaning of the words "at least" mean that the value should be equal or greater than the certain number given. Let h be the height, the inequality that best represents the condition is,
                                    h ≥ 42
This is equal to choice letter C. 

ANSWERED AT 29/01/2020 - 04:38 PM


QUESTION POSTED AT 29/01/2020 - 04:38 PM

The function N(t)=300/(1+299e^-0.36t) describes the spread of a rumor among a group of people who have heard the rumor, and (t) is measured in minutes since the rumor was started. Which of the following statements are true? a. The rate at which the rumor spreads speeds up over time. b. Initially, only one person had heard the rumor. c. It will take approx. 14 mins for 100 people to hear the rumor. d. There are 299 people in the enclosed space.

A ) The rate at which rumor spreads speed up over time. If t increases, also N(t) increases, because 300 is divided by the smaller number.( Correct )B ) 1 = 300 / ( 1 + 299 · e^(-0.36 · 0 ) ) 1 = 300 / ( 1 + 299 · 1 ) 1 = 300 / 3001 = 1  ( Correct )C ) 100 = 300 / ( 1 + 299 · e^(-0.36 · 14 ) )100 = 300 / ( 1 + 299 · 1/154.47 )100 = 300 / 2.93565100 ≈ 102.192        ( Correct ) - approx. 14 minutes
D ) N = 300 / ( 1 + 299 · e^(-∞) )N = 300 / ( 1 + 299 · 0 ) N = 300 / 1 = 300299 people are enclosed space ( Not correct )Answer:True statements are: A )B )  and  C ) .

ANSWERED AT 29/01/2020 - 04:36 PM


QUESTION POSTED AT 29/01/2020 - 04:36 PM

Find the number of permutations in the word circus.

Answer:  The number of permutations in the word "circus"= 360

Step-by-step explanation:

The given word : C I R C U S

The total number of letters in the given word =6

The number of times C appeared: 2

Then , the number of permutations in the word "circus" is given by :-

\dfrac{6!}{2!}=6\times5\times4\times3=360

Therefore, the number of permutations in the word "circus" = 360

ANSWERED AT 29/01/2020 - 04:34 PM


QUESTION POSTED AT 29/01/2020 - 04:34 PM

A quadrilateral contains two equal sides measuring 12 cm each and an included right angle if the measure of the third side is 8 cm and the angle opposite to the right angle is 120 degrees.Find the fourth side and the area of the quadrilateral?

The fourth side of the quadrilateral can be determined by taking the sin of the difference of 120 and 90 in which the expression becomes sin 30 = x/12 where x is the extra length difference from the third side. x is equal to 6. Hence the fourth side is equal to 8+6 or 14 cm. The area of the quadrialteral is the sum of the rectangle and the area of triangle. The area of the rectangle is 8*12 equal to 96 cm2.The area of teh triangle is .5*6 \sqrt{3} *6. The sum or the total area is equal to 127.18 cm2.

ANSWERED AT 29/01/2020 - 04:33 PM


QUESTION POSTED AT 29/01/2020 - 04:33 PM

Lisa has only nickels and dimes in her money box. She knows that she has less than $15 in the box. Let x represent the number of nickels in the box and y represent the number of dimes in the box. Which of the following statements best describes the steps to graph the solution to the inequality in x and y? Draw a dashed line to represent the graph of 5x + 10y = 1500 and shade the portion below the line for positive values of x and y. Draw a dashed line to represent the graph of 5x + 10y = 1500 and shade the portion above the line for positive values of x and y. Draw a dashed line to represent the graph of 10x + 5y = 1500 and shade the portion above the line for positive values of x and y. Draw a dashed line to represent the graph of 10x – 5y = 1500 and shade the portion below the line for positive values of x and y.

Convert dollars into cents to get a constant unit for the variables listed:

\text{100 cents in a dollar}
15 \times 100 = 1500

We now have the following values:

\text{Nickel = 5 cents}
\text{Dime = 10 cents}
\text{Amount in box = 1500 cents}

Because there are multiple nickels and dimes in the box, give them variables:

\text{Amount of nickels = x}
\text{Total value of nickels = 5x}

\text{Amount of dimes = y}
\text{Total value of dimes = 10y}

Since we are determining the total value of both nickels and dimes in the box, we will add them together to total the value of the box:

5x + 10y = 1500

The question states that Lisa has less than $15, or 1500 in the box. The inequality will now read as follows:

5x + 10y \ \textless \  1500

When graphed, the shaded part of the graph will be below the line, as it represents all values of x and y that would result in an output under 1500.

The answer is "Draw a dashed line to represent the graph of 5x + 10y = 1500 and shade the portion below the line for positive values of x and y.".

ANSWERED AT 29/01/2020 - 04:33 PM


QUESTION POSTED AT 29/01/2020 - 04:33 PM

Laura has moved to a new apartment. Her schoolbooks comprising of different subjects are mixed in a bag during the move. Four books are of mathematics, three are English, and six are science. If Laura opens the bag and selects books at random, find the given probability. P(1 science and 2 mathematics books)

Answer: \dfrac{18}{143}

Step-by-step explanation:

Given: The number of Mathematics books = 4

The number of English books =3

The number of science books = 6

Total number of books : 6+4+3=13

If Laura opens the bag and selects books at random, then the probability to pick one science book is given by :_

\text{P(1 science and 2 mathematics books)}=\dfrac{^6C_1\times ^4C_2}{^{13}C_3}}\\\\\\=\dfrac{6\times\frac{4!}{2!(4-2)!}}{\frac{13!}{3!(13-3)!}}\\\\\\=\dfrac{6\times6}{\frac{13\times12\times11\times10!}{3!\times10!}}\\\\\\=\dfrac{36}{286}=\dfrac{18}{143}

Hence, the probability to pick one science book is \dfrac{18}{143}.

ANSWERED AT 29/01/2020 - 04:32 PM


QUESTION POSTED AT 29/01/2020 - 04:32 PM

Kimberley wants to plot a graph to show the price of different numbers of skateboards. She has to plot the following points: (1, 49.99), (2, 99.98), (3, 149.97), (4, 199.96) Which of the following best describes how the x-axis should be labeled? From 0 to 6 at intervals of 3 From 0 to 8 at intervals of 4 From 0 to 3 at intervals of 1 From 0 to 5 at intervals of 1

Based on the given above, the values of the x's are 1, 2, 3, 4. It is best to draw the x-axis and label them from 0 to 5 with an interval of 1 to allow the better plotting of the points. In addition, all the values of the x may be found in the labels of the x-axis. 

ANSWERED AT 29/01/2020 - 04:31 PM


QUESTION POSTED AT 29/01/2020 - 04:31 PM

Which letter of the alphabet does the word meander, applied to erosion, bring to mind. . A.. S. . . B.. A. . C.. W. . . D.. F

The answer for this question would be letter "A. S". A meander is a bend that appears to be in sinusoidal course. This is form when there is smooth movement. The erosion can be evidently described as that wave which appears to be letter S. 

ANSWERED AT 29/01/2020 - 04:29 PM


QUESTION POSTED AT 29/01/2020 - 04:29 PM

Which equation describes a parabola that opens up or down and whose vertex is at the point (h v)

The parabola that opens upward has a formula of y = 4ax^2 where a is the length of the latus rectum. When the parabola opens downward, the formula becomes y = -4ax^2. With a vertex of point (h,v), the formulae become y-v = 4a(x-h) ^2 and y-v = -4a(x-h) ^2.

ANSWERED AT 29/01/2020 - 04:21 PM


QUESTION POSTED AT 29/01/2020 - 04:21 PM

Can some one help me please If the patient has to be administered a dosage of 2 tablets every 6 hours for 7 days, what is the number of tablets required for the prescribed dosage? so i knw the the conversion factor that describes the number of tablets taken for every 6 h. is 2 tablets/6h and The dose has to be administered for a "full treatment" spanning 7 days. The conversion factor that determine the number days in a full treatment is 7 days/1full treatment but now idk what to do?

There are 24 hours in a day. For 7 days there will be 168 hours in total. Divide this number of hours by 6 to determine the number of times that the patient would have to take tablets. 
                                     (168 / 6) = 28 times
Each time, the patient is to take 2 tablets. Therefore, the number of tables for this prescription is 56.

ANSWERED AT 29/01/2020 - 04:20 PM


QUESTION POSTED AT 29/01/2020 - 04:20 PM

Which term describes the point where the three altitudes of a triangle intersect?

Answer:

Orthocenter

Step-by-step explanation:

ANSWERED AT 29/01/2020 - 04:17 PM


QUESTION POSTED AT 29/01/2020 - 04:17 PM

Which of the following best describes the term direct variation? A.Two variables exhibit direct variation if they have a constant ratio. B. Two variables exhibit direct variation if they do not have a constant ratio. C. Two variables exhibit direct variation if, when one variable increases, the other variable decreases. D. Two variables exhibit direct variation if their products are always equal.

The best answer among the choices listed is option A. The statement that best describes the term direct variation is that "Two variables exhibit direct variation if they have a constant ratio". For instance, y is directly related to x. We can write in an equation by:

y = kx where k is the constant of proportionality and should be equal for all values of y and x.

ANSWERED AT 29/01/2020 - 04:17 PM


QUESTION POSTED AT 29/01/2020 - 04:17 PM

Sharon wants to make a graph to show the relationship between the number of tickets sold and the price of tickets sold. She plots the following points: (0, 0), (1, 20), (2, 40), (3, 60), (4, 80) She uses the following steps to plot the graph: Label origin as (0, 0) On x-axis label Number of tickets sold. On y-axis label Price of tickets in dollars. The scale on x-axis starts from 0 and goes up to 10 at intervals of 2. The scale on the y-axis starts from 0 and goes up to 200 at intervals of 20. Which of the following best describes the graph? a) It will not be spread out across the entire coordinate plane because in Step 1 Sharon selected an incorrect point as the origin. b) It will not be spread out across the entire coordinate plane because in Step 2 Sharon plotted the dependent variable on the axis. c) It will not be spread out across the entire coordinate plane because in Step 3 Sharon plotted the independent variable on the y-axis. d) It will not be spread out across the entire coordinate plane because in Step 4 and Step 5 Sharon selected incorrect scales on the axes.

The correct answer to this question is letter "c) It will not be spread out across the entire coordinate plane because in Step 3 Sharon plotted the independent variable on the y-axis." The statement that best describes the graph is that it will not be spread out across the entire coordinate plane because in Step 3 Sharon plotted the independent variable on the y-axis.

ANSWERED AT 29/01/2020 - 04:12 PM


QUESTION POSTED AT 29/01/2020 - 04:12 PM

Which of the following phrases describes the function of the integumentary system? 1:protective barrier 2:nutrient transport 3:information processing 4:food breakdown

"protective barrier" is the phrase among the phrases given in the question that describes the function of the integumentary system. The correct option among all the options that are given in the question is the first option or option "1". I hope that the answer has come to your help.

ANSWERED AT 29/01/2020 - 04:10 PM


QUESTION POSTED AT 29/01/2020 - 04:10 PM

In business terms, the word agreement is equivalent to the word _____. A. purchase B. deal C. contract D. financing

In business terms, the word agreement is equivalent to the word "contract". APEX confirmed!

ANSWERED AT 29/01/2020 - 04:10 PM


QUESTION POSTED AT 29/01/2020 - 04:10 PM

Which is the most appropriate unit to describe the rate at which data is transferred using the internet A:Megabits per second bc the independent quantity is time in seconds & dependent quantity is amount of data in megabits B:Seconds per megabit bc the independent quantity is time in seconds & dependent quantity is amount of data in megabits C:Seconds per megabit bc the independent quantity is amount of data in megabits & dependent quantity is time in seconds D:Megabits per second bc the independent quantity is amount of data in megabits and dependent quantity is time in seconds

The most appropriate unit to describe the rate at which data is transferred using the internet would be megabits per second, because the independent quantity is time in seconds and dependent quantity is amount of data in megabits. The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query about and it will be able to help you.

ANSWERED AT 29/01/2020 - 03:54 PM


QUESTION POSTED AT 29/01/2020 - 03:54 PM

If f(x) is the total number of bacteria present in a sample after x hours, which of the following statements best describes the meaning of f(2) = 12? The total number of bacteria present in the sample after 12 hours is 2. The total number of bacteria present in the sample after 6 hours is 2. The total number of bacteria present in the sample after 2 hours is 12. The total number of bacteria present in the sample after 6 hours is 12.

Answer: The total number of bacteria present in the sample after 2 hours is 12.

Step-by-step explanation:

Given : f(x) is the total number of bacteria present in a sample after x hours,

The meaning of f(2) = 12 is At x= 2 , the  total number of bacteria present in a sample  is 12.

Since x represents the number of hours.

Therefore, the statement that best describes the meaning of f(2) = 12 is :

The total number of bacteria present in the sample after 2 hours is 12.

ANSWERED AT 29/01/2020 - 03:53 PM


QUESTION POSTED AT 29/01/2020 - 03:53 PM

Triangle HAM is translated using the rule (x,y)→(x+6, y) to create triangle H'A'M'. If a line segment is drawn from point H to point H' and from point A to point A', which statement would best describe the line segments drawn? A) They share the same midpoints. B) They are parallel and congruent. C) They are diameters of concentric circles. D) They are perpendicular to each other.

The statement would best describe the line segments drawn would be they are parallel and congruent. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query about and it will be able to help you.

ANSWERED AT 29/01/2020 - 03:50 PM


QUESTION POSTED AT 29/01/2020 - 03:50 PM

Which events changed Europe and Asia during the late Middle Ages?. . Choose all answers that are correct.. . A.. Chinese emperors made opening the doors to greater trade and contact with foreigners their highest priority.. . B.. Famine and plague devastated Europe's population.. . C.. Mongol rule weakened across their vast empire.. . D.. England and France fought a series of related conflicts which became known as the Hundred Years’ War.. . E.. Wars between Christians and Muslims resulted in the expansion of Christianity and European empires.

Answer:

Options B, C and D.

Step-by-step explanation:

Considering the late middle ages to be the 14th and 15th centuries, the choices are as follows:

B - Famine and plague devastated Europe's population.  The time was termed as black death period that killed nearly 25 million people in Europe.

C - Mongol rule weakened across their vast empire.

D - England and France fought a series of related conflicts which became known as the Hundred Years' War. This war lasted for 116 years.

ANSWERED AT 29/01/2020 - 03:50 PM


QUESTION POSTED AT 29/01/2020 - 03:50 PM