Mathematics Middle School

Which correctly compares 1/4 × (458 + 231) and (458 + 231) ÷ 4 without doing any calculations?
A. 1/4 × (458 + 231) < (458 + 231) ÷ 4
B. 1/4 × (458 + 231) = (458 + 231) ÷ 4
C. 1/4 × (458 + 231) > (458 + 231) ÷ 4
D. (458 + 231) ÷ 4 < 1/4 × (458 + 231)

Answers

Answer 1

Answer:

A

Step-by-step explanation:

i dont know im guessing bc finals are tommorow and i need points

Answer 2
A
I strongly think this is the answer

Related Questions

Enter a formula in the formula bar that will calculate what percentage of total arrivals are on-time arrivals.
(I need a formula that I can put into an excel formula bar, do this to get Brainliest)

Answers

You would just do # on time ➗ # of arr. So maybe b ➗ a but I’ve never used Excel.
I don’t really know sorry

Hw help (again)
hope everyone is having a wonderful day <3

Answers

Answer:

The numbers are 8 and 6

Step-by-step explanation:

Let x and y be the two numbers

x+y = 14

x-y = 2

Add the two equations together

x+y = 14

x-y = 2

--------------

2x +0y = 16

Divide by 2

2x/2 = 16/2

x = 8

Now find y

x+y = 14

8+y =14

Subtract 8 from each side

8+y-8 =14-8

y =6

The numbers are 8 and 6

Answer:

8 and 6

Step-by-step explanation:

[Help Please!] Find the value of x.

Answers

Answer:

x = 52

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles of a triangle

x+72 = 34+90

x +72 =124

Subtract 72 from each side

x = 124-72

x =52

Answer:

x = 52 degrees

Step-by-step explanation:

Let's first focus on the angle x + 72.  Immediately adjacent to x + 72 is angle RQS.  These two angles are "straight" in that they lie immediately adjacent to one another and add up to 180 degrees.  Then angle RQS can be expressed as

180 degrees - (x + 72 degrees), or 108 - x degrees.

The three interior angles of the triangle must add up to 180 degrees.  Hence

108 - x degrees + 34 degrees + 90 degrees = 180 degrees, and so:

108 - x + 34 = 90

This yields x = 52 degrees.

Pls name a set of vertical angles in the image below:

Answers

Answer:

1 and 3 ; 2 and 4

Step-by-step explanation:

Vertical angles are two angles that have the same vertex. They are congruent

Answer:

1 and 3 are vertical angles

2 and 4 are vertical angles

Step-by-step explanation:

Vertical angles are angles formed by the same lines but are opposite each other

1 and 3 are vertical angles

2 and 4 are vertical angles

The area of the rectangular floor in Tamara's room is 95 5/6 square
feet. The width of the room is 8 1/3 feet. What is the length of Tamara's
room?

Answers

area of rectangle is width × length
which means area of rectangular floor in Tamara's room = width of room × length of room
-> 95 ⅚ sq feet = 8 ⅓ feet × length of
->(95 + 5/6) sq feet = (8 + 1/3) feet × length of room
->575/6 sq feet = 25/3 feet × length of room
length of room = (575/6)/(25/3)
= 575 × 3/6 × 25)
= 23/2
= 11 ½ feet
Area of the 346+99;$ djdjekdjdjj

I need help with find the area of the other shapes. Like you can give me an example of the width and lenth like this (8:7) and I'll put a pic of what I've got so far and I need you to do what I did please.I really need help.


You must include the following items: • At least 10 shapes in which you can calculate the area (label the dimensions for each shape in feet 1 cm=3.25feet) o 2 rectangles o 1 rhombus o 3 triangles (1 must include a fractional base) o 2 trapezoids (1 base must be a decimal) o 1 pentagon o 1 irregular polygon in which you’ll have to decompose into smaller shapes. And if my pic ain't clear enough sorry.

Answers

Answer:

Step-by-step explanation:

Hmm i think you take the cm flee to the 8th

Plz help will be marked BRAINLIEST
Thanks !

Answers

Answer:

The first two

Step-by-step explanation:

Do the parenthesis of the first and you will get the original equation.

Multiple the second with 4 and you will get the original equation too.

^ Their answer is correct, the first two

Help me please !!!!!!!

Answers

Answer:

3z+9=1-z

collect like terms

3z+z=1-9

4z=-8

divide both sides by 4

z=-4

Answer:

z= -4

Step-by-step explanation:

Solve for t.

3t= -8.16

Answers

t= -2.72
8.16/3 = 2.72
3 x 2.72=8.16
t=-2.72 Answers by the one and only muhammad

Question: What is x????​

Answers

The answer for x will be 15

Answer:

x= 15

Step-by-step explanation:

because the other side is equal so you want to find what number times 3 will get you 45

Two boats leave the same harbor in Hawaii at the same time. Boat A is traveling due west at a speed of 45mph. Boat B is traveling due north at a speed of 60mph. How far apart will the boats be in 1 hour? How far apart will the boats be in 3 hours?

Answers

I quickly did this on paper and here is my answer I’m not 100% sure I’m correct but here it is

In 1 hour the boats will be 15 miles apart. In 3 hours the boats will be 45 miles apart.

Hope this helps :D
For and hour it’ll be 15 and for 3 it’ll be 45

If the perimeter of a triangle is 31 ft and two of the side lengths are 15 ft and 10 ft, what is the length of the third side?
A. 56 ft
B.25 ft
C.16 ft
D.6 ft

Answers

Answer:

D would be the answer

Step-by-step explanation:

31 - 15 = 16

16 - 10 = 6

The answer is d 15+10= 25 then 31-25=6

Help with math 10 points

Answers

Answer:

Step-by-step explanation:

(4,5)

the answer is (4,5) :))

25 POINTS!! PRE-ALGEBRA MATH! PLEASE HURRY! I WILL GIVE BRAINLIEST!
Part B: Describe how you can make the line of the best fit. write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate the slope and y-intercept.


(please explain how you got the slope and y-intercept with the numbers from the question if you would like brainliest)

Answers

Answer: We are using a line regression tool to solve the parameters asked in the problem. We can use online tools or that of Excel. According to the tool, the best fit values are

Slope0.3848 ± 0.03956

Y-intercept0.6053 ± 0.6370

X-intercept-1.573

1/Slope2.598

Step-by-step explanation: Best fit lines make sure that the standard deviation at each point is minimum from the best fit line.

Answer:

Step-by-step explanation:

Slope0.3848 ± 0.03956

Y-intercept0.6053 ± 0.6370

X-intercept-1.573

1/Slope2.598

Prove why this makes sense.

Answers

Answer:

it doesn't

Step-by-step explanation:

hehe, try again

Answer:

You cross add

Step-by-step explanation:

so like you would do cosθ + cosθ = cosθ.  1 + sinθ + 1 + sinθ = 2 = 2/cosθ

                                     Have a good day/night!!!!!!!!!!!

                                        Sorry if I am wrong! :) :) :)

Simplify 20 k + 15 k -5k

Answers

Answer:

30k

Step-by-step explanation:

20+15= 35

35-5=30

Answer is 30k

Can someone please help me answer this it's in the screenshots below

Answers

1) Monday
2) 13
3) 10
4) It starts at a higher temperature then slowly decreases, then increases again
5) On sunday the temperature was the lowest, this is because it is the lowest on the graph at 10
6) They should’ve added more numbers between to have a more clear answer
1)Monday
2)13
3)10
4)it start hot then goes down a little bit and the goes up on Friday and goes back down
5)it was on Sunday
6)by having more information about the temperature

Which expression has a value of 31 when x = 6, y = 10, and z = 11?
A.
3xyz

B.
2x + 3y – z

C.
4yz – 2x

D.
xy – 2z

Answers

C explanation I already did this question
the answer is B

2x 6=12
3x10=30
12+30=42
42-11=31

Can someone answer the last two questions

Answers

1.Mon 2. 19 or 20 3. 4 or 3 4.it’s like stairs but
1. Mon 2.19 or 20 3. 4 or 3

eight workers can clear twenty acres of a field in three days. how many workers are needed to clear fifty acres in five days?

Answers

12 , hope this helps!!!

pls help im almost done. Find the value of x in the triangle shown below.

Answers

Answer:

x = 5

Step-by-step explanation:

Pythagorean Theorem:

a² + b² = c²

12² + b² = 13²

144 + b² = 169

b² = 25

b = 5

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

x=5 because the
thero

Which of the scatterplots have no correlation? Check all that apply.

On a graph, points curve up and down.
On a graph, points are grouped together to form a horizontal cluster.
On a graph, points are grouped together to form a vertical cluster.
On a graph, points are grouped together and decrease.
On a graph, points are scattered over the graph.
Please Help : )

Answers

Answer:

2,3 and 5

Step-by-step explanation:

Scatterplots with NO correlation (meaning scatterplots that are not grouped together) are your answers.
So you would choose the following two:
On a graph, points curve up and down.
On a graph, points are scattered over the graph.

find surface area of the prism pls!!!!! explain too. I really need help!!!

Answers

i believe you have to multiply meaning 6x5x2 it’s 60.

Answer: 104 square inches

Step-by-step explanation:

The surface area of a prism is the sum of the surface are of all of it's faces.

We can turn that into this equation SA =  2(w x l) + 2(l x h) + 2(w x h) where w is width, l is length, h is height, and 2(w x l) is the top and the bottom surface areas, 2(l x h) is the left and right sides, and 2(w x h) is the front and back.

Substitute to get this:  SA =  2(6 x 2) + 2(2 x 5) + 2(6 x 5)

Simplify with multiplication to get this: SA = 24 + 20 + 60

Simplify with addition to get this: SA = 104

Add the unit label and you get 104 square inches.

The following triangle is an isosceles triangle. What is the length of the missing side?
A. 4 in
B. 37°
C. 53°
D. 11 in

Answers

Answer:

D.11 in

Step-by-step explanation:

isosceles triangles have two congruent sides

The missing side length is congruent with the longer side ( this is pretty obvious )

If the longer side has a length of 11in and the missing side is congruent to the longer side then the missing side length equals 11 in

helpppp plzzz helllpppp...and give steps plzz

Answers

Yesterday was a nice weekend and we just woke back to the bed so I’m tired lol
I just woke up forgive me

6.Here is a list of the highest and lowest elevation on each continent

Answers

Asia is the largest sorry if I am wrong

Which table represents a nonlinear function?

Answers

I think it the first one
The top left table represents a non linear function

On a cold day in Moscow, the temperature was 5∘C. If the temperature drops 17∘, what is the new temperature?

Answers

Answer:

5-15 equals -12

so the temp was -12

5-10=-5 another -7 =-12

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Solve the following equation.
-5 = s- 3

Answers

Answer:

s=-2

Step-by-step explanation:

-5=s-3

+3 +3

-2=s

Hope this helps! :)

Answer:

-2

Step-by-step explanation: I think of it like regular subtraction, you go backwards by 3 to get -5.

Look at the image below.
I give Brainliest
Answer the questions.

Answers

Answer:you do every number plus 24 and that’s how you get it

Step-by-step explanation:

The answer is 415, 439, 559
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