Which parallelograms have perpendicular diagonals

Answers

Answer 1

Answer: If the diagonals of a parallelogram are perpendicular, then the parallelogram is a rhombus. If one diagonal of a parallelogram bisects a pair of opposite angles, then the parallelogram is a rhombus. To prove a square, you must prove it is both a rectangle and a rhombus.


Related Questions

A grandfather clock that usually sells for $500 is selling at a 25% discount.
What is the sale price of the clock?

Answers

Answer:

$375

Step-by-step explanation:

Method I

25% = .25

500 * .25 = 125

500 - 125 = 375

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

Method II

1 - .25 = .75

500 * .75 = 375

Describe the general properties of rotations.

Answers

A rotation maps a line to a line, a ray to a ray, a segment to a segment, and an angle to an angle.

A rotation preserves lengths of segments.

A rotation preserves measures of angles. Step-by-step explanation:

You Welcome :)!

Someone please help?? Solve for angle DCE

Answers

Answer:

58 degrees

Step-by-step explanation:

By looking at the diagram we can see that angle DCE is an outside angle

There is a special relationship between the outside angle and the arcs it intercepts

The theorem states that the outside angle is equal to half the difference of the intercepted arcs

In other words [tex]outside angle= \frac{arc AC - arc BD (the difference of the arcs)}{2}[/tex]

Knowing this formula we can solve for DCE

So it would be [tex]angle DCE= \frac{238-arcDE}{2}[/tex]

Well we do not know what arcDE is

Since we are given that the other arc is 238 we can take 238 and subtract is from 360

this will give us 122

so you have angle DCE= 238-122/2

238 minus 122 is 116

Angle DCE-=116/2

Angle DCE=58 degrees

There are other ways you can do this but this is just one of them

I Needham help without this one I will give you brainlist

Answers

Answer:

hi, it can be 0 or also 1

please mark as brainiest:)

Answer:

tricky

Step-by-step explanation:

The eighth term in the series 2, 6, 18, 54, ___ is
4122
4374
5643
7434

Answers

Answer: I think it's 163

Step-by-step explanation:

it's multiplied by 3's

if x+3/3 = y+2/2 then x/3 =​

Answers

Answer:

x+3/3=y+2/2

x/3 = y/2

Step-by-step explanation:

The diameter of this beach ball is 12 inches.
Apply the formula for the volume of a sphere to
determine how much air it can hold. Use 3.14159 or
the a button on a calculator. Round the answer to the
nearest hundredth.
4
Sphere V = ſ tem
How much air can the beach ball hold?

Answers

Just plugin the numbers you have. For instance, r = radius. We know that the radius is 1/2 of the diameter. Our diameter is 12 so 12 / 2 = 6. With that said, add 6 to where the r is located in the formula and solve the formula.

Solve for V


To solve for V we have to do the following.



The formula above reads V(Volume of air) equals 4 divided by 3 times pi times 6 to the power of 3

Answer:

904.78

Step-by-step explanation:

whats the value of x? -5(x + 7) = -14 + 2x

Answers

Answer: x=-3

Step-by-step explanation:

Ok let's start by using the distributive property

[tex](-5)(x)+(-5)(7)=-14+2x\\-5x-35=-14+2x[/tex]

Now subtract 2x from both sides

[tex]-5x-35-2x=2x-14-2x\\-7x-35=-14[/tex]

Next add 35 to both sides

[tex]-7x-35+35=-14+35\\-7x=21[/tex]

Finally divide both sides by -7

[tex]\frac{-7x}{-7} =\frac{21}{-7} \\x=-3[/tex]

Answer:

x = -3

Step-by-step explanation:

First, we compute -5(x + 7). -5(x + 7) = -5x - 35. Plugging this into the equation, we have -5x - 35 = -14 + 2x Next, we combine like terms by moving all terms with the variable x to the left side. We have -5x - 2x = -14 + 35. We simplify the equation into -7x = 21. Divide 21 by -7, and we get x = -3.

Find the midpoint of the line segment with the given endpoints. (-1,1) (5,-5)

Answers

(2;-2)

therefore the coordinates of the mi

Step-by-step explanation:

X=(X+X)/2

X=(-1+5)/2

X=2

y=(y+y)/2

y=(1-5)/2

y=-2

therefore the coordinates of the midpoint is (2;-2)

g(x) = 2x-5. Find g(3), g( 1/2), g(0), g(4), g(4). If g(a) - 99, find a.

f(x)= 3-4x. Find f(1), f(3), f(-2) ,f​​​​​​​​​​​​(1/2)

f(x)= x+3​​​​. find f(1), f(2), f(-3),f(​​​​​​​​​​​0),f(​​​1/2).
​​solve these please right now. no silly answer wolud not be allowed. ​​​​

Answers

g(3)
2(3)-5
6-5
1

g(1/2)
2(1/2)-5
1-5
-4


g(0)
2(0)-5
0-5
-5


g(4)
2(4)-5
8-5
3


10) The second angle in a triangle is 3° less than twice the first angle. The third angle measure 8° more than
twice the first angle Find each angle.

Answers

Answer:

35, 67 and 78

Step-by-step explanation:

the angles are:

n, 2n-3 and 2n+8

there are 180 degrees in a triangle, so adding those terms together will give us 180

5n + 5 = 180

180 - 5 = 175

5n = 175

175 / 5 = 35

n = 35

now we have n we can put it in to the formula we have for the angles at the start:

n = 35

2n - 3 = 67

2n + 8 = 78

so the angles are

35, 67 and 78

need help ASAP due in a few min

Answers

Answer:

A

Step-by-step explanation:

T o show the inverse, the output becomes the input

The input is the output

The input is 2,4,6,8

The output is 1,3,5,7

They will also be in the same order so 1 went to 2 so 2 will go to 1

Explain what one it is and why pls and thank you

Answers

It would be 1/4 of the original volume
The first option is the correct answer.

Find the area of the shaded figure. The area is square units (AREA OF COMPOSITE FIGURES)​

Answers

Answer:

28 square units

Step-by-step explanation:

count the middle and edgr squares then u can just put the parts of the square together

The second statement is the
of the first.
X = у
y = x
A. contradiction
B. inverse contrapositive
C. inverse
D. converse
a
SUBMIT

HELP

Answers

Answer:

The second statement is the

of the first.

X = у

y = x

A. contradiction

B. inverse contrapositive

C. inverse

D. converse

Step-by-step explanation:

imverse

The second statement is the contrapositive of the first.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We know that x → y is a conditional statement read as 'if x then q'.

And, The converse EXCHANGES the hypothesis and conclusion such as:

⇒ y → x

And, The 'contrapositive' statement basically NEGATES the converse of the conditional such as:

⇒ ¬y → ¬x

Coming back towards the question,

Given that;

x ⇒ y

¬y ⇒ ¬x

Therefore, The second statement is the contrapositive of the first.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ5

Please help me with my math asap

Answers

Answer:

90 - 63 = 27 degree

Step-by-step explanation:

The agricultural practice of irrigation leaves behind which pollutant in the
soil?
O A. Salt
B. Acidic compounds
C. Nitrogen compounds
D. Pesticides

The answer is Salt !!

Answers

The answer is nitrogen compounds for this question

Lines DE and AB intersect at point C.
What is the value of x?

Answers

Answer:

25 because I need to use mayh

find the surface area of the prism

Answers

Answer:

SA=96

Step-by-step explanation:

formula for triangular prism=bh+l(s1+s2+s3)

3*4/2*2=12

4*7=28

3*7=21

5*7=35

12+28=40+21=61+35=96

What is the sum of (2n – 5m) and (n + m)?

Answers

Answer:

3n - 4m

Step-by-step explanation:

(2n-5m)+(n+m)

so we get this equation and from here, we expand the equation by removing the brackets, you should get:

2n-5m+n+m and just solve from here.

to make it easier, put the like terms together:

2n+n+m-5m

= 3n-4m

Answer:

3n - 4m

Step-by-step explanation:

(2n – 5m) and (n + m) in this case have the same value if the parentheses are removed.  We end up with:

2n – 5m

 n +   m

--------------        Grouping like terms vertically, as shown here, may make this

                         addition a bit easier.

2n – 5m

 n +   m

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

 3n - 4m (final answer)

                                           

Mr. Pratt was building a house. A ladder that is 10 ft. long is leaning against the side of a
building. If the angle formed between the ladder and the ground is 65 degrees, how far is
the bottom of the ladder from the base of the building? (Round to two decimal places)

Answers

Step-by-step explanation:

the answer is in the above image

Sarah's family traveled 5 8 of the distance to her grandmother's house on Saturday. They traveled 1 3 of the remaining distance on Sunday. What fraction of the total distance to her grandmother's house was traveled on Sunday?

Answers

Answer: The fraction of the total distance to her grandmother's house was traveled on Sunday = [tex]\dfrac18[/tex]

Step-by-step explanation:

Let x be the total distance to grandmother's house .

As per given,

Distance traveled on Saturday = [tex]\dfrac58x[/tex]

Remaining distance = [tex]x-\dfrac58 x[/tex]

[tex]=\dfrac38x[/tex]

Distance traveled of Sunday = [tex]\dfrac13[/tex] of Remaining distance

= [tex]\dfrac13\times\dfrac{3}{8}x[/tex]

= [tex]\dfrac18 x[/tex]

The fraction of the total distance to her grandmother's house was traveled on Sunday = [tex]\dfrac18[/tex]

Solve for x. Round to the nearest tenth of a degree, if necessary. Please help!!!!
45
W
V
92

Answers

Answer:

[tex]\displaystyle x^\circ \approx 29.3[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] sinθ = opposite over hypotenuseInverse Trig

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ = x

Opposite Leg = 45

Hypotenuse = 92

Step 2: Solve for x

Substitute in variables [sine]:                                                                            [tex]\displaystyle sin(x^\circ) = \frac{45}{92}[/tex]Inverse Trig:                                                                                                       [tex]\displaystyle x^\circ = sin^{-1}(\frac{45}{92})[/tex]Evaluate:                                                                                                           [tex]\displaystyle x^\circ = 29.2834436[/tex]Round:                                                                                                               [tex]\displaystyle x^\circ \approx 29.3[/tex]

the floor of a warehouse is 60m long 40m wide. find the cost of polishing the floor plzzz helpp​

Answers

Answer:

Rs 192000

Step-by-step explanation:

area of floor = l*b

=60 * 40

=2400 m^2

cost of polishing per square cm of the floor is Rs 80

cost of polishing floor = 2400 * Rs 80

=Rs 192000

Which statement is true? asap thx reeeeeeeeeeeeeeeeeeeeee

A. 24 – 15 × 4 – 3 × 2 = 30

B. 24 – 15 × (4 – 3) × 2 = 30

C. (24 – 15) × 4 – 3 × 2 = 30

D. (24 – 15) × 4 – 3 × 2 = 66

Answers

Answer:

the correct answer should be C: (24-15) x 4-3 x 2=30

C. (24 - 15) x 4 - 3 x 2 = 30

Hope this helps! :)

ali's age is half of his fathers age but 15 years ago his age was just 1/3 of his fathers age find his present age

Answers

Answer:

30 for the son 60 for the dad

Step-by-step explanation:

Take away 15 from the son and dad you get 45 and 15 which is 1/3 before t that was 15 years ago which makes it 30 for the son and 60 for the dad

Two of the three views of a solid are shown. A. What is the greatest number of unit cubes in the solid? Greatest number of unit cubes: cubes b. What is the least number of unit cubes in the solid? Least number of unit cubes: cubes Question 2

Answers

Answer: hello the views attached to your question is missing hence I will provide a more general answer based on the scope of your question

answer :

a) 8 unit cubes

b) 1 unit cube

Step-by-step explanation:

The number of views a solid figure can have are : Top view , Front view and side view  and The greatest number of unit cubes in a solid depends on the side length of the unit cube

a) For a unit cube with side length half ( 1/2) the Unit length of the given solid the greatest number of unit cubes = 8  while

b) The least number of unit cube = 1  

The length of a rectangle is 4 yd longer than its width.
If the perimeter of the rectangle is 56 yd, find its length and width.

Answers

Answer: The length of the rectangle is 16 yards and the width is 12 yards.

Step-by-step explanation:

The length is 4 yds longer than the width. Let's remove that from the perimeter so that the perimeter will be as if all sides had the same length (remember there are 2 sides for length and 2 sides for width).

[tex]56-4-4\\48[/tex]

Now we made it so that the extra 4 yards are gone and all sides are equal like a square. Now we can divide by 4 to determine the length of each of the now equal sides

[tex]\frac{48}{4} =12[/tex]

So all of the sides are 12, 12, 12, and 12. To two of the sides we can add back the extra 4 yards we took out giving us sides of 12, 12, 16, and 16.

Let's add it all together and see if it makes the perimeter of 56

[tex]12+12+16+16\\24+32\\56[/tex]

It does! Since the length is 4 yds longer than the width the length is 16 and width is 12.

What is the slope of the line that passes through the points (-10, -8) and
(-8, -16)? Write your answer in simplest form.

Answers

Answer:

Slope is - 4

Step-by-step explanation:

The slope of the line will be (-16-(-8))/(-8-(-10))=-8/2=-4

Answer:

-4

Step-by-step explanation:

We have two points so we can use the slope formula

m = (y2-y1)/(x2-x1)

   = ( -16 - -8)/(-8 -  -10)

   = (-16+8)/ (-8+10)

   = -8/2

  - 4

Using the formula for area of parallelograrn, find the area of the following parallelograr if
your base 5ft. and your height is 3ft

Answers

Answer:

15

Step-by-step explanation:

the formula for area of a parallelogram is base times height

Other Questions
Next, verify that point C divides the line in the ratio required by using the distance formula to calculate AC and CB. Show your work. Given ix) = 17 - x2, what is the average rate of change in f(x) over the interval [1, 5]? i need some help, thanks if you answer :D How do genes determine the traits of an organism? 20 POINTS PLEASE ANSWER! to form 5 - 4x from x : to solve 5 - 4x = 17: the solution to the equation 5-4x=17 is : Read the paragraph.[1] Thomas Paine, a pivotal figure in the American Revolution, was born in Britain in 1737. [2] When he was in his mid-thirties, he met Benjamin Franklin in London. [3] Franklin helped Paine move to Philadelphia, where he pursued a career in journalism, he became the editor of Pennsylvania Magazine. [4] In 1776, Paine authored a pro-independence pamphlet called Common Sense, which was widely read throughout the colonies.Which sentence should be revised to improve this paragraphs sentence fluency?sentence 1sentence 2sentence 3sentence 4 what is the world doing to stop climate change and will it be enough? will mark as brainliest! y=acos(b(x-c))+d give an explanation for how each letter a, b, c and d are shown in the graph compared to y=cosx Briefly describe the involvement of a sport management and marketing agency in client marketing and product endorsement. When you apply _______ you insert a number slightly above the the line of textA. SubscriptB. Underlining C. SuperscriptD. Text effects In a bag there are blue sweets and red sweets. The ratio of blue sweets to red sweets is 5:3 What fraction of the sweets are blue? All i need is the answer and any other information, i will rate give thanks, and maybe a brainliest. Help quickly!!! Hannah has a part-time job making holiday wreaths. This week, she made x medium wreaths, twice as many large wreaths as medium wreaths, and 12 as many small wreaths as medium wreaths. In terms of x, how many wreaths did Hannah make this week? HELP ME ASAP...Can technology play a role in solving the issues on coronavirus pandemic? find the absolute maximum and the absolute minimum of the given function on the given interval f(x)=xe^x/2 on [-3,1] What is the correct way to write this:To my disbelief, I got a reply back. And it said really? Me too.( Im so sorry for asking a lot of questions! My brain is not working right now ) REFERENCE: LESSON 8 TO 12.1.Simplify the ratios 52 : 39(1 mark)Answer:2.Simplify 4/16:23(1 mark)Answer:(1 mark)3.Express the ratio 8 : 56 in the form 1:nAnswer:(1 mark)4.Solve for the unknown in the given proportion.Answer:(1 mark)5.Express the ratio 40 cm: 5 m in the form m:n.Answer: Find the equation of a line perpendicular to 2x-y+6=0 through the point (0, -2) Can anyone help me out?