Which of the following conditions is necessary to prove that a quadrilateral is a parallelogram?
A. the diagonals bisect each other
B. The diagonals are congruent
C. The diagonals are perpendicular
D. The diagonals intersect on the perpendicular bisector of the two sides?

Answers

Answer 1
C.the diagonals are perpendicular i think :D

Related Questions

Determine the slope of each line.
1.
ТУ
2.
8
ty
8
115,7)
4
(6,5)
4
Х
0
-4
-8
0
-8
4 8
(
2-2)
4
-
-4, -3)
-8
S

Answers

Answer:

The slope of the given line is -4

Step-by-step explanation:

The formula of the slope of a line passes through points (x1, y1) and (x2, y2) is m = [tex]\frac{y2-y1}{x2-x1}[/tex]

In the given figure

∵ The line passes through the points (-6, 5) and (-4, -3)

x1 = -6 and y1 = 5

x2 = -4 and y2 = -3

→ Substitute them in the formula of the slope above

∵ m = [tex]\frac{-3-5}{-4--6}[/tex]

∴ m = [tex]\frac{-8}{-4+6}[/tex]

∴ m = [tex]\frac{-8}{2}[/tex]

∴ m = -4

The slope of the given line is -4

aaaaaaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhh help

Answers

Multiply both sides and you should get X= 27

Answer:

x = 27

STEP BY STEP:

3 = x/9

3 = x/3 x 2

9 x 3 = x

27 = x

x = 27

Hope this helped! Have a good day!

A tank full of water is leaking at a constant rate for 15 minutes. The equation
y=-8x+ 500
describes the amount of water in the tank, where y is the number of liters and
xis the number of minutes that has elapsed since the tank started to leak.
Which statement is true?

A. There were 8 liters in the tank when the leak started, and it is decreasing by 500 liters per minute.

B. There were 8 liters in the tank when the leak started, and it is increasing by 500 liters per minute.

C. There were 500 liters in the tank when the leak started, and it is decreasing by 8 liters per minute.

D. There were 500 liters in the tank after 15 minutes, and it is
decreasina bv 8 liters per minute.

Answers

Answer:

C. There were 500 liters in the tank when the leak started, and it is decreasing by 8 liters per minute.

Step-by-step explanation:

-8x is the rate of the leak and 500 is the initial value for water in the tank.

Need help please!!!!!

Answers

Answer:

0 or 5/12

Step-by-step explanation:

with everything subtracted its 0 but with only subtracting 1/6 its 5/12

How many terms are in the expression below?

-4x + 7 + 2x + 10

Answers

Answer:

3

Step-by-step explanation:

Solve using graphing substitution or elimination in the picture

Answers

Answer:

1) 18 quarters and 30 nickels2) 8 quarters and 12 nickels

Step-by-step explanation:

1) Let quarters be x and nickels be y.

Equations based on given, 48 coins, total of $6 = 600c:

x + y = 4825x + 5y = 600

Substitute y in the second equation, y = 48 - x

25x + 5(48 - x) = 60025x + 240 - 5x = 60020x = 360x = 18

Then value of y is:

y = 48 - 18 = 30

2) Similarly to problem 1.

x + y = 2025x + 5y = 260

Substitution: y= 20 - x

25x + 5(20 - x) = 26025x + 100 - 5x = 26020x = 160x = 8

Then finding y:

y = 20 - 8 = 12

what is the slope of the 2 points (10,15) (6,23)

Answers

Answer:

The slope is -2.

Step-by-step explanation:

m=y2-y1/x2-x1            (also, y1-y2/x1-x2 is also true.)

=23-15/6-10                  m=15-23/10-6

= 8/-4                            =-8/4

=4/-2                             =-4/2

= 2/-1                             =-2/1

m=-2                             m=-2

Estimate 5,860÷2.1≈
i really need help on it.

Answers

Answer: it 2790

Step-by-step explanation:

The value of 5,860÷2.1 is 2790.

What is division?

In easy phrases, the division may be described because of the splitting of a massive institution into smaller companies such that every institution may have the same number of items. it's far an operation used for identical grouping and the same sharing in math.

What are the terminologies used in the division?

dividend, divisor, quotient remainder.

Learn more about division here: https://brainly.com/question/25289437

#SPJ2

Pleaz Helpz!!! I needz this done before my final!!!

Answers

the perimeter of the field is 442

width=w

the length of the field is 9 yards less than quadruple W

L=4x - 9

the perimeter is P=2L+2W

you can plug in the values

P= 2(4w-9) + 2W

plug in 442 for P

442= 2(4w- 9) + 2W

442= 8w - 36 + 2W

478 =8w + 2W

478= 10W

47.8 is your answer!!!

In an experiment, the variable that is manipulated is called the?
Measurement variable
Explanatory variable
Response variable
Confounding variable

Answers

Response variable.....

Answer:

Explanatory Variable is the right answer it is the variaable being manipulated and observed.

Step-by-step explanation:

If f(x) = 3x + 2, what is f(5)?

Answers

Answer:

f(5)=3(5)+2 = 17

Step-by-step explanation:

What is the value of fraction x plus z plus y over, y, end fraction, when x equals 7, y equals minus 5, and z equals square root of 9 ?

Answers

7+3+(-5)/-5
10-5/-5
5/-5
-1

ALREADY LATE PLS HELP!!!

Answers

Answer:

36 ounces

Step-by-step explanation:

9 x 4 = 36

1/4=0.25 0.25/9=36 so the answer is 36 sorry if this is wrong hope it helps <3

Given the function
f(x)=-1/2(1-x)^2,
find f(-5).

Answers

Answer:

f(x)= -1/2(1-x)^2

replacing x with -5 since -5 was given as the function

f(-5)=-1/2(1-5)^2

according to bodmas we solve what is in the bracket first

f(-5)=-1/2(-4)^2

f(-5)=-1/2(16)

-1/2*16/1

-16/2=-8

Parallel lines r and s are cut by two transversals, parallel lines t and u.



How many angles are alternate interior angles with angle 9?

Answers

Angle 7 and angle 15 so the answer is TWO.

Check the picture below for more information. Hope it helps !

Answer:

2

Step-by-step explanation:

What divided by -18 = 23

Answers

Answer:

x= [tex]- \frac{18}{23}[/tex]

Step-by-step explanation:

Which of the following words describe the slope of a vertical line?
a. negative
c. undefined
b. positive
d. zero

Answers

Answer:

Undefined the slope is a slope line

Step-by-step explanation:

It is horizontal straight across

Click on photo if neccessary ​

Answers

the answer would be C

Plz help me out I’m so confused

Answers

Answer:

b

Step-by-step explanation:

Answer:

The correct answer would be the second option y-2=1/3(x-3)

The original price of a ski jacket was $220. It was on sale at a 25% discount. Arianna had a coupon for an additional 10% off the sale price.

What price did Arianna pay for the ski jacket?

Answers

$143
add the two discounts of 25 and 10 percent. then your item will be 65% of the price now.

a company makes a cone-shaped container with a height of 15 in. The area of its base is about 78.8 in.2 Approximately what is the volume if the container?

Answers

Answer:

Approximately the volume of cone-shaped container is 393 in³.

Step-by-step explanation:

The Table represents a Linear Function.

What is the slope of the function?
O -3
O -2
O 3
O 4

Answers

Answer:

The answer is 3

Step-by-step explanation:

I used the equation y/x. (Use the differences between two rows.)

how are ASA and AAS used to show that triangles are congruent?

Answers

Answer:

If two pairs of corresponding angles and the side between them are known to be congruent, the triangles are congruent. This shortcut is known as angle-side-angle (ASA). Another shortcut is angle-angle-side (AAS), where two pairs of angles and the non-included side are known to be congruent.

In ASA, two angles and one common side is equal and in AAS one not common side and two angles are equal.

What is triangle?

Simple polygons with three sides and three internal angles make up triangles. One of the fundamental geometric shapes is represented by the symbol and consists of three connected vertices.

The ASA congruence means, there will be two corresponding angles and one side between them will be equal, then the triangles are congruent.

The AAS congruence means, there will be two corresponding angles and one side excluded from them will be equal, then the triangles are congruent.

To know more about Triangles:

https://brainly.com/question/16886469

#SPJ2

a scientist is running a simulation of a hypothetical city since she wants to explore its environmental impact over time the city's population is increasing 15 percent every year and there are currently 57,000 people what will the population be in 12 years?

Answers

I have no clue if this is correct but the answer I got was 10,260,000

Answer:

203,549 !!!

Step-by-step explanation:

(umm can anyone help me please) I’ll give brainlist <3

Answers

Answer:

12

Step-by-step explanation:

8 times 1.5

A jewelry artist is selling necklaces at an art fair. It costs $135 to rent a booth at the fair. The cost of materials for each necklace is $4.50. The artist is selling the necklaces at $12 each. The inequality LaTeX: 12n > 135 + 4.50n12 n > 135 + 4.50 n represents the situation in which the artist makes a profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.

Answers

Answer:

The artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).

Step-by-step explanation:

Note: The question contains some error. The question is therefore rewritten before is answered as follows:

A jewelry artist is selling necklace at an art fair. It costs $135 to rent a booth at the fair. The cost of material for each necklace is $4.50. The artist is selling the necklace at $12 each. The inequality 12n>135+4.50 represents the situation in which the art is making the profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.

The explanation of the answer is therefore given as follows:

Given;

12n > 135 + 4.50 .................... (1)

Where n represents the number of necklace that must be sold by the artist to make a profit.

Solving for n from equation, we have:

12n > 139.50

n > 139.50 / 12

n > 11.625 ..................... (2)

Equation (2) implies that more than 11.625 necklaces must be sold by the artist to make a profit.

When the artist sells 15 necklaces, it implies that n = 15.

Since more than 11.625 necklaces must be sold by the artist to make a profit, it therefore implies that the artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).

What's the probability of drawing a 5 out of a standard deck of 52 cards

Answers

4/52 = 1/13 ... there are four 5 cards in a deck and 52 cards in a standard deck so 4/52 !

Which scenario could be represented by this graph?

Answers

Answer:

its is (b) turns the oven on

Answer:

D

Step-by-step explanation:

I did the test

How do i solve tis in need help
slope=2/7 y-intercept=-4

Answers

Answer:

y=2/7x-4

Step-by-step explanation:

Write in Slope intercept form

y=mx+b

m = slope

b = y intercept

x = x intercept

y = (0,-4)

So,

y = 2/7x+(-4)   substitute

y = 2/7x-4

A cake recipe requires 4 and one-half cups of flour to make 1 cake. How many cakes can be made by a baker who has 16 cups of flour?
A. 3
B. 4
C. 40
D. 72

Answers

Answer:

3 cakes

Step-by-step explanation:

Answer:

3.

Step-by-step explanation:

The real answer is 3.8 but since you cannot make .8 of a cake the answer is 3.

Other Questions
a new pair of shoes for 60% off. what expression represents the total cost In the figure below, ray MP and ray MQ both intersect line LN. Ethylene oxide is a highly flammable gas used to sterilize medical equipment. To prevent a fire hazard, ethylene oxideshould only be used in an areaO with open windows and doorways.with non-flammable equipment onlyO without fire extinguishers.O without sparks or flames. Which of the following would NOT be considered an event showing tensions that led to the Civil War? Electron transfer between redox centers in proteins is controlled by quantum tunneling. We can model the region between two redox centers as an energy barrier which the electron must cross. If the distance between the redox centers is 0.681 nm and the energy of the electron is 0.5540.554eV lower than the height of the barrier, what is the probability that the electron will successfully cross to the next redox center A HEAVY WAGON was being dragged along a country lane by a team of Oxen. The Axle-trees groaned and creaked terribly; whereupon the Oxen, turning round, thus addressed the wheels: Hullo there! why do you make so much noise? We bear all the labor, and we, not you, ought to cry out. What is the theme of the story In a paragraph, discuss how the character trait of determination in Jerry in "Through the Tunnel" advances the plot of the short story. A student used a portable electric drill to remove screws from a broken wooden table. He noticed that the screws holding the table together were warm to the touch after being removed from the wood. Which statement best explains this phenomenon?A:Electrical energy from the drill was converted into chemical energy due to conductivity.B:The process of removing the screw concentrated the thermal energy that was already present in the wood been stuck on this for a bit Write y= -1(x-4.5)^2 + 15.25 in standered form A negative effect on health behaviors from overuse of technology can be ___? Rewrite the following formal sentence in a more conversational style. This may require the use of more thanone sentence. Make changes to both sentence structure and word choices.It ill becomes us to cast about for someone to blame, to flee unpleasant realities,or to hide the clear facts in a cloud of finger-pointing-we must take responsibility. Accounts Receivable account has a beginning balance of $52,000 and an ending balance of $69,000. If $47,000 was sold on account during the year, what were the total collections on account What is 5% of 40? 1284 need rn! please help, thx :) 4(x - 1) + 3 - 2 2 Where was the Nipissing settlement located? *O along the Proclamation LineO in the thirteen coloniesO in other British territoryO in Spanish territory Please Help! I Really Really Need It! Corporate taxes are a type ofA,) income tax.B.) property tax.C.) sales tax.D.) excise tax. whats the answer???