Mathematics College

Which two expressions are equivalent?

Answers

Answer 1

Answer:

option 3

Step-by-step explanation:

12 - (y*2) = 12 - (2*y) Commutative property

2*y = y*2

Related Questions

The elevator in a new building travels a maximum distance of 32 meters. Find the estimated distance traveled in yards.

Answers

Answer: 32 m to yards

equals 34,996

Harvey the wonder hamster can run 3 1/6 km in 1/4 hour. Harvey runs at a constant rate

Find his average speed in kilometers per hour.

Answers

Answer:

12 2/3 KMPH

Step-by-step explanation:

3 1/6 x 4 (reciprical of 1/4) = 12 2/3

4 + 1/5r = -1
r = ?

Answers

Answer:

r= 25

Step-by-step explanation:

1/5r= -5

1= -25r

r= 25

On an exam a student earned a grade of 80. On the retake they earned a grade of 100. What is the percent increase in the grade?

Answers

Answer:

25%

Step-by-step explanation:

Percentage increase from 80 to 100 making the increase 25%

Answer:

16 percent sorry if im wrong i tried

Step-by-step explanation:

please I really need help

Answers

I think A and E, but I’m not positive

will give brainlist geometry

Answers

Direct answer :[tex]\color{plum}\boxed{\tt Statements : }[/tex]Segment AB = Segment AD Segment BC = Segment DCAngle B and Angle D are equal.Segment AC bisects angle BAD Segment AC = Segment AC∠ACD = ∠ACB△ABC≅△ADC under ASA congruence criterion. △ABC≅△ADC under SAS congruence criterion.

[tex]\color{plum}\boxed{ \: \tt Reasons : }[/tex]It is given.It is given.It is given. They are also equal because the bisector AC bisects angle BAD and divides it into two equal angles which are angle B and angle D.It is given. Common side.Common angle.Two angles and one included side is equal so these two triangles are congruent under the ASA congruence criterion. Two sides and one included side is equal so these two triangles are congruent under the SAS congruence criterion as well.

Steps to derive these statements and reasons :

Given :

segment AB = segment ADsegment BC = segment DC∠B =∠Dsegment AC bisects ∠BAD

This means that △ABC≅△ADC under the SAS congruence criterion because according to this criterion if two sides and one included angle is equal two triangles are congruent and since these two triangles fulfill these rules they are said to be congruent under the SAS congruence criterion. But they are also congruent under the ASA congruence criterion which states that if two angles and one included side is equal two triangles are congruent. Since △ABC and △ADC fulfill these rules too they can said to be congruent under the ASA congruence criterion.

Sixty-four teams entered a citywide soccer tournament. Half of the teams are eliminated after each round. Write a function for the number of teams left after x rounds.

Answers

Answer:

x = (64 ÷ 2) ÷ r

Step-by-step explanation:

x = teams

r = rounds

hope this helps :)

Answer:

f(x)=-1/2x+64

Step-by-step explanation:

a function starts with f(x) so thats how i got the f(x) and im guessing this is talking about linear functions so they start of with 64 teams which is the y intercept and 1/2 are eliminated after each round which is -1/2 giving us f(x)= -1/2+64

Solve the system of equations using substitution.
y = -7x
2x - y = -9

Answers

Step-by-step explanation:

Since y= -7x you will want to substitute the y in the other equation.

2x -(-7x) = -9

2x + 7x = -9

9x = -9

so x will be -1

y= -7(-1)

x= -1

y= 7

Answer:

x = -1 , y =7 (-1,7)

Step-by-step explanation:

[tex]y=-7x\\2x-y = -9\\[/tex]

[tex]2x+7x = -9[/tex]

[tex]2x+7x = 9x\\[/tex]

[tex]9x = -9\\[/tex]

[tex]\frac{9x}{9} =\frac{-9}{9}[/tex]

[tex]x = -1\\[/tex]

[tex]y = -7(-1)\\y = 7[/tex]

There are 300 audience members at an opera and 26 are wearing bowties. a) How many audience members are not wearing bowties? What is the universal set for this scenario?

Answers

Answer:

300-26=274

The opera

Step-by-step explanation:

hope helps

the equation of the line please

Answers

Answer:

x = 4

Step-by-step explanation:

The line is a vertical line. The equation of a vertical line is represented as x = k.

Where, k is the point at where the line intercepts the x-axis.

In the graph given, the line intercepts the x-axis at 4. k = 4.

Therefore the equation of the vertical line would be:

x = 4

Find the slope of the line between each pair of points (7, -4) and (7, -1)

Answers

Answer:

the slope is -3/0, which is undefined

Step-by-step explanation:

subtract the ys and subtract the xs and put y/x

anything divided by 0 is a math error (not to b confused with 0 divided by, which is just 0)

Hope this helps :)

What is a dot plot and how do you read it? Check all that apply. O A dot plot displays data values as dots number line. O Dot plots show the frequency with which a specific item appears in a data set. There was 1 run in 5 of the games. I There were 0 runs in 2 of the games. O Dot plots show the distribution of the data. There were a total of 19 games.

Answers

Answer:

the first third and 5th one i think, check my answer first XD

Step-by-step explanation:

violet buys cheese and potatoes at the store. she pays a total of $19.30 . She pays a total of $5.58 for the cheese . She buys 4 bags of potatoes that each cost the same amount . How much does each bag of potatoes cost?

Answers

Each bag of potatoes is $3.43 I believe !!

How do I graph

y=1/4x-4

Answers

From zero, rise(up) one and run(right) four with the y intercept being on -4 :)

Approximately how much
would an item cost in 2000 if it
cost $100 in 1990? Round
your answer to the nearest
cent.

Answers

Answer:

I believe the 100 dollars in 1990 would be worth 131.75 dollars in the 2000's

Can you simplify 8/18

Answers

Answer:

[tex]\frac{4}{9}[/tex]

Step-by-step explanation:

Find the GCF of 8 and 18. This is 2.Divide 8 by 2. This is 4, the numerator.Divide 18 by 2. This is 9, the denominator.Reassemble it into a fraction. This will be [tex]\frac{4}{9}[/tex].

If you get half of 10 dimes, you get ??? Cents

Answers

Answer:

Step-by-step explanation:

50 CENTS

PLZ BRAINLEST

Answer:

Half of 10 is 5, dimes are worth 10 cents each. So you'll have either 5 Dimes or 50 cents

Step-by-step explanation:

determaine the slope of the line above A. 1/2 B. 2/3 C. 3/2 D. 1

Answers

Answer: I think its B instead of A

Answer:

2/3

Step-by-step explanation:

If a car travels at 55 mph for 3.5 hours, what is the total distance traveled?
Remember, d = rt.

Answers

Answer:

192.5 miles

Step-by-step explanation:

55 miles per hour x 3.5 hours = 192.5 miles

Answer:192.50

Step-by-step explanation:

graph
y=x-1
y = 2x - 5

Answers

Answer:

use Desmos where you could see the graph. And they intersect in (4,3)

Step-by-step explanation:

hopefully that works

The total of h and b is split into 5 equal groups?

Answers

Answer: (h + b) ÷ 5

Step-by-step explanation:

First add h + b (h +b)

Then divide by 5. (h + b) ÷ 5

Solve each two step problem.
9) Darlene worked 40 hours a week at $8.75 per hour. From her earnings the company
withheld $55.75. How much did she have left?

Answers

That will be 295.25 how ?? You multiply 8.75 by 40 then subtract 55.75 =295.25

Find the slope of the line through each pair of points.
(3,-10), (14,-10)

Answers

Answer:

[tex]\displaystyle m=0[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (3, -10)

Point (14, -10)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{-10+10}{14-3}[/tex][Fraction] Add/Subtract: [tex]\displaystyle m=\frac{0}{11}[/tex][Fraction] Divide: [tex]\displaystyle m=0[/tex]

A window is 28 inches wide. What is the width of the window in
feet?

Answers

Answer:

2 ft 4 in

Step-by-step explanation:

12 in in a foot

2 1/3 feet because 12 inch in a foot and 4/12 left

define acute, right angle, obtuse, straight angle, reflex

Answers

Answer: here

Step-by-step explanation:

Acute Angle - An angle less than 90 degrees. Right Angle - An angle that is exactly 90 degrees. Obtuse Angle - An angle more than 90 degrees and less than 180 degrees. Straight Angle - An angle that is exactly 180 degrees. Reflex Angle - An angle greater than 180 degrees and less than 360 degrees.

Answer:

An Acute angle is an angle less than 90 degrees

An obtuse angle is an angle greater than 90 degrees

A right angle is an angle that is exactly 90 degrees

A straight angle is an angle that is exactly 180 degrees

A reflex is an angle greater than 180 degrees but less than 360 degrees

Step-by-step explanation:

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC = 14
and DC = 7, what is the length of BC in simplest radical form? (Note: the figure is
not drawn to scale.)

Answers

You got same mine is the that on the quiz

A tree casts a shadow 21m long. The angle of elevation of the sun is 51º. What is the height of the tree? Round your answer to the nearest tenth.

Answers

Answer:

25.9

Step-by-step explanation:

If a tree casts a shadow 21 m long. Then the height of the tree will be 25.9 meters.

What is a right-angle triangle?

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

A tree casts a shadow 21 m long.

The angle of elevation of the sun is 51°.

Let h be the height of tree.

Then the height of the tree will be

tan 51° = h / 21

h = 25.93 m

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

#SPJ2

please answer :) will give brainlst

Answers

Answer:

Your answer would be B. A metal railing rusting in damp weather because anything that contains any sort of rust whats so ever is always considered a chemical change.

Explain how to write and evaluate the algebraic expression 13 less than the quotient of forty and a number; evaluate when n=2

Answers

Answer:So you would start with 40/n because quotient means division and then it would be (40/n) - 13 (40 divided by n then minus 13) because the answer is thirteen less than the quotient of those numbers. since it wants you to evaluate for n=2 you would do 40/2 which is 20 then subtract 13 which is 7.

So write the expression as (40/n) -13 and when you evaluate just stick the 2 where the n is for (40/2) - 13

20 - 13

= 7

Step-by-step explanation: HOPE THAT THIS WILL HELP YOU ❤️

Answer:

Here's an answer I used <3

Explanation:

You would then get to 40/n because quotient means division, then 40/n-13 because the outcome is 13 below the quotient. You can divide 40 by 20 to get 20, then 13 to get 7 because it asks you to test n=2.

A candy company packs candy in cases of 544 pieces each. How much candy will be in 26 cases?

Answers

Answer: 544 divided by 26 = 44

Step-by-step explanation:

Divide 544 by 26 and get 20 with a remainder of 24. Add the remainder to 20 and get your total.

Hope this helps.

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