Mathematics Middle School

Which of the following are monomials?

Check all that apply.

A. x - y
B. 9x
C. 24 + 2x2
D. 2x + 12
E. x20
F. 13

Answers

Answer 1
B, E, and F
A monomial has only one term

Related Questions

2a - 1 = 19
Solve the equation and show all work please show steps!!

Answers

Hello,

The answer is "x=10".

Reason:

First write the equation:

2a-1=19

Add one on both sides:

19+1=20

2a=19

Now divide 2 by 20:

20/2=10

a=10

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit 

a square has the sides of 2 yards. plastic cues with sides of 8 inches are placed on the rug. if the cubes cost $2 each, how much money is needed to completely cover the rug with the cubes

Answers

The square is 6 by 6 feet or 72 by 72 inches.
The area of the square is 5184 inches squared.
Divide the area by 64 (area of cube) to equal 81 cubes.
Multiply 81 by 2 to find cost.
Cost = $162

Hope this helps!! :)

A parallelogram is symmetric with respect to either diagonal. true or false?

Answers

it is true as parallelograms are symmetrical on all edges

Not all parallelogram is symmetric with respect to either diagonal, therefore the answer is False.

A parallelogram is known as a quadrilateral (having four sides) with two pairs of parallel-lateral lines. A parallelogram has no line of symmetry but there are some exceptions to specific types of parallelograms. For example:

Rhombus is a special type of parallelogram and it has two lines of symmetry along its diagonals.

A rectangle has two lines of symmetry going through the mid-point of the opposite sides.

A square has four lines of symmetry with two lines going through the diagonal and two lines going through the opposite sides.

Therefore, we can conclude that not all parallelogram is symmetric with respect to either diagonal.

Learn more about parallelogram here:

https://brainly.com/question/9680084?referrer=searchResults

please help Use the expression 8a + 16c.

Part A
Factor the expression using the GCF.
A. 2(4a + 8c)
B. 4(2a + 4c)
C. 8(a + 2c)
D. 16(12a + c)


Part B
What is the value of the expression when a = –5 and c = –1? Enter your answer in the box.

Answers

Part A.

C. 8 (a + 2c)


Explanation:
The answer is c because when you have this equation (below) you have find what both numbers are divisible by:


[tex]8a + 16c[/tex]

Both of these numbers are divisible by 8 (This number would be on the outside of the parenthesis).


[tex] \frac{8a}{8} + \frac{16c}{8} [/tex]

Now that you know they're both divisible by 8 you can start to put together your equation. So far you should have this:

8 (? +?)

Now to find the other numbers you have to think... what number multiplied by 8 will make it equal to 8a? The answer would be a. 8 times a = 8a. (Another way to do this is to just divide 8a by 8 same with 16)

Now your equation should look like this:

8 (a + ?)

Now do the same thing with the 16c as you did with the 8a. (either divide 16c by 8 or think of a number times 8 that will make it equal 16c) For this one I'm going to use the division method - so what is 16c ÷ 8? 16 ÷ 8 = 2 and finally just add the c. So your answer is 2c.

Your equation should not look like this:

8 (a + 2c)

You're done!



Part B.

-56


Eplanation:
To find this just plug in the numbers into the equation. a = -5 and c = -1.
For this I used the original equation :


[tex]8a + 16c[/tex]

Plug in the numbers....


[tex]8( - 5) + 16( - 1)[/tex]

And solve!


[tex] - 40 + - 16[/tex]

And finally....


[tex] - 40 + - 16 = - 56[/tex]

So the value of the equation if a were -5 and c were -1 would be -56!

The required expression is C. 8(a + 2c) and value of the expression when a = –5 and c = –1 is -56.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Given the expression is

8a + 16c.

To find the Factor form of the given expression by using GCF.

We have,

8a + 16c.

Factors of each term:

8a = 2 x 2 x 2 x a

16c =  2 x 2 x 2 x 2 x c

The common factors are 2, 2 and 2. then Taking out the greater common factor (GCF) in the given expression;

GCF = 8

The answer is C. 8(a + 2c)

when a = –5 and c = –1

Then;

8(a + 2c)

8(-5 + 2(-1)) = 8 (-7) = -56

To know more about an expression follow;

brainly.com/question/19876186

#SPJ3

A mini-cube measures 1.5 in. wide. A mega-cube is 5 times as wide. What is the volume of the mega-cube, rounded to the nearest tenth?

Answers

my guess is it is round to  7.5 

Answer:

the answer is  421.9 in³

Hurry I'm TIMED!!!! The following graph shows the low temperatures for the past six nights. What was the range of temperatures for the six nights?

34°F
22°F
12°F
8°F

Answers

Organize by number.

    8, 12, 22, 34

Range is the difference between the highest number and lowest number in a set of data.  To find the range for this data you take 34 and subtract 8 which gives you 28.

Answer:

the answer above is incorrect! So you take 22 which is the lowest on the graph and you take 34 which is the highest on the graph and 8 is not on the graph so 34-22=12

Step-by-step explanation:

SOYOUR ANSWER IS: 12YOU ARE WELCOME MY DEAREST FRIEND!

find the measure of the missing angle in the triangle shown 49° 57°

Answers

Ok, we know that there are 270 degrees in a triangle, so just add 49+57, the you'll get 106, 270-106=164. ANSWER: 164
In a triangle everything must add up to 270 degrees meaning that if there is already 49 and 57 you must add them both together so 49+57 is 106 so you would now have to subtract 106 from the total number of the triangle, being 270.
So the equation would have to be 270-106= 164. The missing angle that you are missing is 164 degrees

the pyramid arena in memphis tennessee is a square pyamid that is 321 feet tall. the base has 600 foot sides. find the volume of the pyramid

Answers

38,520,000 [tex] ft^{3} [/tex]

The volume of a pyramid is represented by 

V = [tex] \frac{l * w* h}{3} [/tex]

The sides are 600 and the height is 321 so by filling in the values in the formula, you can get to your final answer. This is represented in the attached image.

How do you solve 9x+2=8x+9

Answers

Try solving for the variable and get everything to one side
start by moving all whole numbers to one side and all x values to the other so you would subtract 2 from each side first and be left with 9x=8x+7 and then you would subtract 8x from both sides and you would have 1x=7 and lastly you would divide each side by 1 and be left with your answer x=7     
Hope this helps and have a wonderful day :)

I don’t know how to find the missing angles

Answers

Actually those 4 angles are equal to 110 because those are vertical angles
you have to divide because 2 change a smaller number two a larger number divide

What is the median of the following data set? {6, 3, 9, 1, 7} 3 6 8 9

Answers

The median of a data set is the number in the very middle. 
Your answer would be 9.

Answer:

9

Step-by-step explanation:

During a 5​-year ​period, 32% of snowstorms in a certain city caused power outage Fifty-one of the snowstorms did not cause power outages. Find the total number of snowstorms in this city over the 5​-year period.

Answers

To answer this question you will consider that if 32% of the storms did cause outages, then 100% (all of them)-32%= 68% did NOT produce a power outage. We can say that 68% of the total is 51.

This can be written as 0.68 x = 51 where x is the total number of snowstorms. Divide both sides by 0.68 to solve for x. X = 75 snowstorms. Another way to do this is to use Ratios. See the attached page for the strategy.
Answer:
Total number of snowstorms = 75 storms

Explanation:
We are given that:
32% of the snowstorms caused power outage
This means that we can get the percentages of the snowstorms that did not cause power outage as follows:
% of storms not causing outage = 100% - 32% = 68%

Now, we are given that the number of snowstorms that did not cause power outage is 51 
Assuming that the total number of storms is x, the equation would be as follows:
68% * x = 51
0.68x = 51
x = 51 / 0.68
x = 75 storms

Hope this helps :)

Justin drank 1 liter of water during soccer practice. He drank 2000 milliliters of water during the soccer game. How many milliliters of water did he drink during the practice and the game?

Answers

1 liter = 1000 mL
2000 + 1000 = 3000 mL
He drank 3000 mL during practice and the game.

50% of babies are born female. Olive wants to find the probability that 20 or more of the 50 babies born today were female. Use the simulation data to find the probability. Round to the nearest percent.

Answers

It is 94%. Add everything from 20-21 all the way onwards and divide by 200. Then multiply by 100.

Kerry cut an 8 foot long board into 6 pieces that are equal in length. Represent this problem as a fraction

Answers

The answer is 8/6. Hope this helped! God bless :)
8/6 which is simplified to 4/3

what is eleven less than 7 times a number is at least 2 what is the inequality

Answers

----------------------------------------------------------
Define x.
----------------------------------------------------------
Let the number be x.

----------------------------------------------------------
Construct inequality
-----------------------------------------------------------
7x - 11 ≥ 2

----------------------------------------------------------
Add 11 to both sides.
----------------------------------------------------------
7x ≥ 13

----------------------------------------------------------
Divide by 7 on both sides.
----------------------------------------------------------
[tex]x \geq \dfrac{13}{7} [/tex]

----------------------------------------------------------
[tex]\bf \text{ Answer: } x \geq \dfrac{13}{7} [/tex]
----------------------------------------------------------

Hence, the inequality is [tex]x\geq \frac{13}{7}[/tex].

What is an inequality?

A relationship between two expressions or values that are not equal to each other is called 'inequality.

Here given that,

Eleven less than [tex]7[/tex] times a number is at least [tex]2[/tex].

Let the number be [tex]x[/tex]. Construct the inequality

[tex]7x - 11 \geq 2[/tex]

Now add [tex]11[/tex] to both sides.

[tex]7x\geq 2+11\\7x\geq 13[/tex]

Now, divide by [tex]7[/tex] both sides, we get

[tex]x\geq \frac{13}{7}[/tex].

Hence, the inequality is [tex]x\geq \frac{13}{7}[/tex].

To know more about inequality

https://brainly.com/question/23575974

#SPJ2

PLZ!!! HELP!!!!!!!!!

This figure is 14 of a circle.

What is the best approximation for the perimeter of the figure?

Use 3.14 to approximate pi.

A.7.85 in.
B.12.9 in.
C. 17.9 in.
D. 31.4 in.

The file is the picture of the quarter or 1/4 circle

Answers

The answer is c with a side of bacon hope that helps. :)

Answer:

C. 17.9

Step-by-step explanation:

Formula: 1/4 π x d

d = diameter

d = 2r

1/4 π  x  10 = 10/4 π

Add the 2 non-curve sides

5 + 5 = 10

10/4  x  (3.14 = π)  x  10

= 17.9

I hope this helps! :)

Find x. Round to the nearest hundredth.

Answers

X = 11 x tan(64)

x = 22.55

Which describes the correct way to convert minutes to hours?

Answers

Every 60 minutes equals an hour.

60m = 1h

m = minutes | h =hour

60m + 60m = 120m = 2h

Hope this helped!

Deyonne made 25% more cookies than Cameron. They sold the cookies for $0.50 each. Let x represent the number of cookies Cameron made. Which of the following expressions represent possible revenue from the sales. Select all that apply.
.50[x+(x+.25x)]
.50(x+.25x)
.50(x+1.25x)
.50(.75x+x)
.50(1.75x)
.50(2.25x)

Answers

.50[x+(x+.25x)]
.50(x+1.25x)
.50(2.25x)

You have ​$85 in your bank account. Each week you plan to deposit ​$7 from your allowance and ​$25 from your paycheck. The equation bequals85plus​(25plus7​)w gives the amount b in your account after w weeks. How many weeks from now will you have ​$275 in your bank​ account?

Answers

Answer:
number of weeks = 6 weeks

Explanation:
You initially have $85
Each week (w), you will deposit $7 in addition to $25

This means that the equation representing the amount (b) in the account will be:
b = 85 + (7+25) w
b = 85 + 32w 

Now, we want to know in how many weeks will the amount saved be equal to $275. 
To get the number of weeks, we will simply substitute with b = $275 in the above equation and solve for w as follows:
b = 85 + 32w 
275 = 85 + 32w
275 - 85 = 32w
190 = 32w
w = 5.9 which is approximately 6 weeks.

Hope this helps :)

How do u do #10? Plz show on paper

Answers

Reflection across the line y=x simply swaps the x and y coordinates.
K'(-2, -5), A'(1, -4), I'(-1, 0), J'(-4, -2)

translate the verbal phrase into a algebraic expression pls

Answers

2 × (x + 3) < 5
...................................................................

A dairy mixes chocolate milk to sell in gallon containers. They mix 2,365 cups of skim milk with 108 cups of chocolate syrup. If each gallon container holds 16 cups of the chocolate milk, how many full containers will be filled?

Answers

So to solve this equation, you need to first figure out how many cups are going to be in all. You can do this by adding the cups of skin milk (2365) and the cups of chocolate syrup (108 cups), which leaves you with a total of 2473 cups. 
Now, since each gallon is 16 cups and you are determining the amount of gallons, you take the total number of cups (2473) and divide it by the 16 cups. this then gets you the answer of 154.5635. BUT... Since it wants to know how many FULL containers... the real answer is simply 154 GALLONS
(2365 cups + 108 cups) ÷ 16 = 2473 ÷ 16 
                                               = 154.56
the quantity will fill a 16 containers

Which relation is a function of x?

Answers

The correct awnset to that question would be D

Answer:

last option is correct.

Step-by-step explanation:

A relation is a function if each x value has a unique y value.

We'll use this concept to check whether the relation is a function or not.

For the first relation,

the x value 2 has two different values -9 and 8 . Hence, it is not a function.

For the second relation,

the x values -8 and 1 has different y values . Hence, it is not a function.

For the third relation

The x value -5 has different y values. Hence, it is not a function.

For the fourth relation

All the x values have unique y values. Hence, from the definition it is a function.

Therefore, last option is correct.

9. A model of a building is made using a scale of 1 inch = 25 feet. What is the height of the actual building, in feet, if the height of the model is 12.5 inches?


*PLZ HELP* *DUE IN 1 HOUR* *EMERGENCY* *17 POINTS* *YOU WILL GET A COOKIE*

Answers

You can use the ratio to find the height of the actual building, 1 inch:25 feet.
We have to find y which is the actual height, 12.5 inches: y.
To find y, you have to multiply 12.5 by 25 to find the actual height.
12.5×25= 312.5
So the actual height of the building is 312.5 feet.

Answer:

312.5

Step-by-step explanation:

i wil get my cookie

After taking core samples all over a cone-shaped mountain, you have determined that for every 1,000,000 yd3 there is about 2 lbs of gold to be mined. If the mountain has a base that is 2,000 yards wide and a height that is 3,000 yards tall, about how much gold is it expected to hold?

Answers

Final answer:

To find the expected amount of gold in the mountain, calculate the volume of the cone and multiply it by the gold density.

Explanation:

To determine the amount of gold expected to be held in the mountain:

Calculate the volume of the cone using the formula V = (1/3)πr²h.

Convert the volume to cubic yards since the gold density is given in lbs per 1,000,000 yd³.

Multiply the volume by the gold density to find the total amount of gold expected in lbs.

Malik drinks 1\2 liter of water and 1\3 liter of liter of juice.did malik drink more water or juice?

Answers

malik drank more water than juice

What are three two dimensional shapes that could result from slicing a cube

Answers

Any 3 of ...
  triangle, square, rectangle, trapezoid, parallelogram, pentagon, hexagon.

A deep-sea diver must descend and ascend in short steps to equalize pressure on his body. If the diver rises toward the surface too fast, he may suffer from a physical condition called "the bends." Suppose the diver started at 82 feet below the surface and rose in 5 steps of 15 feet each. Use an integer to describe his new position in relation to the water surface.

Answers

Start by multiplying 15 by 5, and you get 75. then subtract that from 82, and you get 7. Since you are below the surface, the number is negative. So you get -7. 

Answer:

-7 feet

Step-by-step explanation:

The total distance the diver rose is 5*15 = 75 feet

If we take the zero at the water surface, then the initial position, that is, 82 feet below the surface has to be considered as -82. The 75 feet risen by the diver is a positive quantity, then his new position, in relation to the water surface, is -82 + 75 = -7 feet, i. e. 7 feet below the surface.

Other Questions
Which region did the Ottomans control entirely or partially from the 1400s through the end of World War I? find the sumthe answer is after the first one The set of life spans of an appliance is normally distributed with a mean mc013-1.jpg = 48 months and a standard deviation mc013-2.jpg = 8 months. What is the life span of an appliance that has a z-score of 3? what are the steps to do a punnett square?(number and list the steps) In some species, young individuals float freely as plankton while mature members are fixed on the seafloor. this is an effective strategy because What happens to the force of gravity between two maser if they are moved father apart A. It increases. B. It decreases. C. It stays the same D. It fluctuates. ( Question two ) Earths path around the sun is ____. A elliptical. B circular. C . random. D. Triangular. (Question three). The asteroid belt separates what ? A. Sun and stars B. Earth in moon C. Inner and outer planets D. Milky Way from other galaxies ( Questikn four ) the tilt of the earth its axis causes ____. A. Day in night. B. The seasons. C. A year D. A month umm it right will mark brilliant The diagram below shows rock is affected when water enters cracks in rock,freezes and becomes ice 2no2(g)n2o4(g) kp=6.7at298k a 2.35-l container contains 0.053 mol of no2 and 0.084 mol of n2o4at298k. is the reaction at equilibrium? if not, in what direction will the reaction proceed? Johnny is growing "tomatoes" in a light chamber in his dorm closet. some are given red light, some are given green light, and some are given blue light. under which color light will johnny's "tomatoes" show the greatest rate of growth? Select all that apply.Which of the following is true about 3rd person point of view?It is the most commonly used point of view.It can tell a story from multiple perspectives.It is traditionally used in fairy tales.It provides greater insight into the narrators thoughts and feelings.The narrator is an outside observer. Which is an example of a major character?A. Dickon Sowerby B. Mrs. Lennox C.Martha Sowerby C.Colin Craven. Please don't guess, and I really not sure of the answer. Assume that when adults with smartphones are randomly selected, 46% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that at least 6 of them use their smartphones in meetings or classes. Before changing lanes the most important thing for a driver to do is a) The volleyball reached its maximum height after 3 seconds.b) The maximum height of the volleyball was 23 feet.c) If the volleyball is not returned by the opposing team, it will hit the ground in 5.5 seconds.d)The graph that models the volleyball's height over time is exponential.e) The volleyball was served for a height of 5 feet. What characteristics were shared by the African colonies?-democratic government-economic prosperity for Africans-forced labor-lack of services-larger police forces-non-representative governments-stronger family ties-urbanizationMORE THAN ONE ANSWER Review the title. "Veterans Appreciate Our Gratitude, But What They Need Most Is Our Help"Which word is most helpful in determining that the author's purpose is to persuade?A. veteransB. Help C. butD. MostEdit : the answer is "C. but" In the following diagram, the voltage is 1.5 volts and the resistance is 6.0 ohms. Use Ohm's law to determine the current in the circuit.A)0.25 ampsB)4.0 ampsC)6.0 ampsD)9.0 amps HELP ASAP on a test Jared, age five, describes himself as a good soccer player with black hair who laughs a lot. his description demonstrates his developing self-deprecation self-criticism self-concept self-esteem Which of the following sentences best describes the dramatic irony in the poem? The traveler knows he will see the statue in the desert. The traveler knows who the king was. The audience knows the traveler has seen the statue in the desert. The audience knows the boastful king's power did not last. For the eighth observation (i=8), identify the animal phylum, xi, and yi.