Mathematics Middle School

HELP PLS! Simplify the expression.
/686x+y
ОА. 7туз /2xy
Ов. 7ту ту 2
Ос. 7xy2 /2 ху
OD. 7х2у /2xy2

HELP PLS! Simplify The Expression./686x+y. 7 /2xy. 7 2. 7xy2 /2 OD. 72 /2xy2

Answers

Answer 1

Answer:

C. is the correct answer.

Answer 2

Answer:

c. 7x2y /2 xy

it is right answer

Related Questions

plz help me this hard

Answers

so the graph shows a division problem. the green parts represent 1/4 of the rectangle. and that 1/4 has been cut into 5 parts. so i think it would be d.

PLZ HELP i am failing like i still did the work but i got it incorrect plz!!! i BEG of you to plz help me (Surface Area of Rectangular Prisms)

Answers

Answer:8 times 4+12+= 44

Step-by-step explanation:

8 times 4 gives you 32 then add 12 to get 44

(8x4)2=64
(8x12)2=192
64+192=256

256 would be your answer i believe. i think this is right but i havent done this in a while and i just now watched a video on it.

can someone help me please ASAP im so confused

Answers

8*6 which is equal to 48 so answer choice B.

Answer:

7*8=$56

Step-by-step explanation:

It is 7 people because they all pay $8 so her and her 6 friends equals 7. Then 7 times $8 is $56

Ms. McClain conducted an experiment with a 6-sided number cube. The table shows the number of times each number landed:

table: times landed out of 48

number: tosses:
1 8
2 10
3 7
4 6
5 9
6 8

For which number(s) did the theoretical probability equal the experimental probability?

A) 1
B) 2
C) 3
D) 4
E) 5
F) 6

Answers

ii think the answer is A

Help me with these 2D stuff please, it should be simple and NO LINKS
Is a quadrilateral with 2 pairs of parallel sides a rhombus? Why or why not?

Answers

No because a rectangle also has 2 pairs of parallel sides.

Which of these characteristics does a rhombus have

Answers

Answer: opposite sides with equal length

Step-by-step explanation:

Answer:

Opposite sides with equal length

Step-by-step explanation:

Does one equal to zero?

Answers

Answer: 1 = 0

Step-by-step explanation:

The following is a “proof” that one equals zero.

Consider two non-zero numbers x and y such that

x = y.

Then x2 = xy.

Subtract the same thing from both sides:

x2 – y2 = xy – y2.

Dividing by (x-y), obtain

x + y = y.

Since x = y, we see that

2 y = y.

Thus 2 = 1, since we started with y nonzero.

Subtracting 1 from both sides,

Answer:

Yes, one does equal to zero

Step-by-step explanation:

Consider two non-zero numbers x and y such that

x = y. 

Then x2 = xy. 

Subtract the same thing from both sides: 

x^2 – y^2= xy – y^2.

Dividing by (x-y), obtain 

x + y = y. 

Since x = y, we see that 

2 y = y. 

Thus 2 = 1, since we started with y nonzero. 

Subtracting 1 from both sides, 

1 = 0.

I am not good at explaining this type of question. so I copied and pasted the explanation part. I hope this helps

PLEASE HELP ME PLEASE PLEASE PLEASE!!! IMA FAIL THIS TEST HELP

At a pizza restaurant they sell their pizza for $10 each, plus $2 per topping. Write a function rule (equation) that describes the totals cost, y, of the pizza for x number of toppings. Hint #1: Make sure to create a function table-this will be needed for Part B. Hint #2: the answer you need to type in for Part A is A FUNCTION RULE that represents this problem.

Answers

The equation is y=2x+10
Y=2x+10 just did that question on a test like 5 minutes ago

please help me I'm stumped on this​

Answers

Answer: 1300 cm^3, 850 cm^2

Step-by-step explanation:

With a triangular prism, you need to calculate the surface area of the triangle first and then the length. Here's how to solve for the volume (A):

Triangles is b*h/2, plug in the equation

10*13/2

130/2

65

Now use the length of the rest of the shape, which is 20 cm.

65*20=1300

the volume is 1300 cm^3.

for B, finding the surface area requires you to analyze each individual part of the shape.

Each part colored in represents a different shape:

Red:

10*20=200

Blue:

13*10/2=65

65*2=130 (Two triangles)

Green:

13*20=260

260*2=520 (Two rectangles)

Add them all up together.

200+130+520= 850 cm^2

Therese filled a rectangular pool with water. The pool measured 214 yards long, 2 yards wide and 3 yards tall. If the pool was filled to the top, how many cubic yards of water did Therese use?

Answers

Answer:

1284 yd^3

Step-by-step explanation:

What is the simplified slope for (3,2) and (5,12)

Answers

To find Y intercept
You do y2-y1/ x2-x1
Your y2 is 12, y1 is 2
Your x2 is 2 , x1 is 3
So 12-3/2-3
12-3 is 9
2-3=-1
9/-1 is -9
So your slope is -9

Answer:

-5

Step-by-step explanation:

Recall that slope = rise/run.

Here the change in y (the rise) is -10 (y changes from +12 to +2), and the  change in x (the run) is 2, since x increases from 3 to 5).

The slope of the line through these points is m = rise / run = -10/2 = -5

help please asap im confused

Answers

Answer:

for the second one x = 34

Step-by-step explanation:

x + 23 = 57

subtract 23 on both sides

x + 23 - 23 = 57 - 23

x = 34

Find the missing side. Round to the nearest tenth when necessary.

Answers

Answer:

15.6

Step-by-step explanation:

Because it is a right triangle, you can use the Pythagorean Theorem. The theorem is c^2 = a^2 + b^2, with c being the hypotenuse, and a and b being the legs. So plug in the values and you will get 18^2=9^2 + b^2. Solve for b and you will get 15.6.

Answer:

x=15.59

Step-by-step explanation:

using the pythagorean theorem we know a²+b²=c²

also that c²-a²=b². in this case we're using the second one. c² is 18², and a² is 9². 18²-9² is 243. we then find the square root of that number to get x (b²). x=15.59 rounded to the nearest hundreth.

Daily high temperatures (°F): 45, 50, 47, 52, 53, 45, 51 Calculate the range of temperature. Degrees

Answers

53-45 off of the info that I have hope this helps

Answer:

The range of the temperature is 8

Having the highest temp minus the lowest temp

I NEED HELP FAST! What is the volume of the prism? Round to the nearest tenth if necessary.

Answers

Answer:

B

Step-by-step explanation:

2.8*4.5

=12.6

12.6*6

=75.6

10 divided by 1 7/8 = 4x what is x? hurry!!

Answers

x= 20/17 ; multiply by reciprocal 10 times 8/17 =4x then 80/17=4x , divide both sides by 4 leaves you x=20/17
Hi!
X= 20/17
I hope this helps!!

The image shows parallel lines cut by a transversal. The expressions represent unknown angle measurements. What is the value of x?

Answers

Answer:

x = 7

Step-by-step explanation:

The 2 angles are adjacent and sum to 180° , that is

11x + 8 + 12x + 11 = 180

23x + 19 = 180 ( subtract 19 from both sides )

23x = 161 ( divide both sides by 23 )

x = 7

72 is what percent of 468

Answers

Answer: 15.38%

Step-by-step explanation:

15.3846153846 is the exact answer

or 15.38

Which of the following statements is NOT TRUE when finding the length of the missing leg EF?

Group of answer choices

8 squared plus 10 squared equals EF squared

100 - 64 = EF squared

EF = 6 ft

EF = the square root of 36

Answers

first one isn’t true

A scientist looks at a bacterium and a virus in a lab. The bacterium has a diameter of 10 Superscript negative 6 meters. The virus has a diameter of 10 Superscript negative 7 meters. Which statement accurately compares the sizes of the specimens?
The diameter of the bacterium is 10 times greater than that of the virus.
The diameter of the bacterium is StartFraction 1 Over 100 EndFraction times as great as that of the virus.
The diameter of the virus is 10 times greater than that of the bacterium.
The diameter of the virus is StartFraction 1 Over 100 EndFraction times as great as that of the bacterium.

PLASE LEAVE THE ANSWERS BELOW

Answers

Answer: A

Step-by-step explanation:

The diameter of the bacterium is 10 times greater than that of the virus.

Answer:

The diameter of the bacterium is 10 times greater than that of the virus.

Step-by-step explanation:

Edge

if a ≤ =6 is a ≤ =12

Answers

Answer:

true

Step-by-step explanation:

since a is smaller than or equal to 6 then it should be smaller than or equal to a bigger value like 12

True cause 6 is greater than a so 12 is obviously greater

hewlp pwealse me giwve brainllest plllllllllllllllllls

Answers

Answer:

D. 8 ft

Step-by-step explanation:

4200/525 = 8 ft

Yeah I agree it’s D sorry if I’m wrong though.

Bob likes to embarrass his students at a rate of 3 students every 2 days. Bob embarrasses his students at a rate of 5 students every 3 days. together, how many students could these two embarrass in 6 days?

Answers

Answer: 19 students

Step-by-step explanation:

3/2 9/6

5/3 10/6

Answer:

11

Step-by-step explanation:

in 1 day he embarrasses 1 1/2 of his students [ doesnt seem accurate ]

in 2 days he embarrasses 3

in 3 days he embarrasses 5

in 4 days he embarrasses 7

in 5 days he embarrasses 9

in 6 days he embarrasses 11

need help dont get it

Answers

Step-by-step explanation:

Angle GHI + Angle IHK = 180 (Angles on the same straight line)

(x + 30) + (x+10) = 180

x+x+30+10 = 180

2x + 40 = 180

Answer:2x+40=180

Step-by-step explanation:

You want to equate everything for 180 since it's on a straight line

Therefore

(x+30)+(x+10)=180

x+x+10+30=180

2x+40=180

Joud has a rectangular fish tank. The dimensions of the fish tank are shown in the diagram. I AM FAILING PLZ HELP ME PLZZZ

Answers

Answer:

The answer is 300

I believe the answer is 1,636 (surface area btw) I used this website https://www.omnicalculator.com/math/surface-area-rectangular-prism it helped me a lot (sorry if I didn’t help)

Please help me find the area of the figure. It’s question number 8

Answers

Answer:

C

Step-by-step explanation:

add 8 + 8 + 4 + 4 = 24 ft

so maybe it is C

Simplify the following expression:

2a - 3b - 4a + 2b

a
- 2a - b
b
a + b
c
2a + 4b
d
- a - 4b

Answers

the answer is a. because you need to remember the negatives
the answer is a and the step by step is

2a-4a = -2a so it has to have that
and
-3b + 2b = -b so your answer is clear hope this helps in the future

need this done really quick ill give brainliest

Answers

Answer:

top left

Step-by-step explanation:

sry if its wrong

The net of a square pyramid is shown below. What are the possible areas for a single face in this net? Check all that apply.

A net with a square base with sides lengths of 5 meters, and 4 triangles with heights of 6 meters.
11 square meters
15 square meters
24 square meters
25 square meters
30 square meters

Answers

Answer: 1,2,and 4. I did it online and got it right!

Answer:

B. 15 square meters (for the triangles)

D. 25 square meters (for the square base)

Bonus: The total surface area would be 85 square meters.

Step-by-step explanation:

The square base is easier to deduce here; simply square 5 to get 25 square meters for the base.

The triangles require some math, however. But it is relatively simple

(5 * 6)/2

30/2

15 square meters for the triangles.

For bonus, I'll find the total surface area.

5² + 4((5 * 6)/2)

First, square 5 to get 25.

25 + 4((5 * 6)/2)

Now multiply 5 * 6 to get 30.

25 + 4(30/2)

Then divide 30 by 2 to get 15.

25 + 4(15)

Now multiply 4 by 15 to get 60.

25 + 60

Lastly, add 25 and 60 to get 85.

The entire square pyramid's surface area is 85 square meters.

I hope this helps! ヽ(*⌒▽⌒*)ﾉ

How did the Hungarians treat the people of Transylvania?

They were imprisoned.
They were treated like slaves.
They were given citizenship.
They were given their freedom.

Answers

Answer:

(a)They were treated like slaves.

Answer:

B. Treated like slaves

Step-by-step explanation:

also this is history not math lol

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