Mathematics High School

Kite ABCD has a longer diagonal AC with a length of 14 in. and a shorter diagonal BD with a length of 8 in. The diagonals intersect at point E. What is the length of BE?
4 in
7 in
8 in
14 in

Answers

Answer 1
Hello,
The longer diagonal is an axis of symmetry of the  Kite.
So E is the middle of BD and BE=8/2=4

Answer A: 4in.

Related Questions

Which ordered pair (a, b) is a solution to the given system?

Answers

Since you are given a list of choices, you can go through each choice to plug them into the equations. It turns out that choice B is the answer

(3,1) means that a = 3 and b = 1
Plug in a = 3 and b = 1 into the first equation
2a - 5b = 1
2*3 - 5*1 = 1.... replace 'a' with 3, replace b with 1
6 - 5 = 1
1 = 1
we get a true equation, so we have confirmed the first equation

Do the same for the second equation
3a+5b = 14
3*3+5*1 = 14 .... replace 'a' with 3, replace b with 1
9+5 = 14
14 = 14
we get a true equation, so the second equation has been confirmed

Both equations are true when (a,b) = (3,1). So the answer (3,1) has been confirmed fully

In 1992, only 275 people owned cellphones in Metropolis. Each year, cell phone use has continuously grown by 82%. How many cellphone users were there in 2000?

Answers

For this case we have the following equation of the potential type:
 y = A (b) ^ t
 Where,
 y: number of people with cell phones
 A: initial number of people with cell phones
 b: growth rate
 t: time
 Substituting values:
 y = 275 * (1.82) ^ t
 For the year 2000 we have t = 8.
 Substituting:
 y = 275 * (1.82) ^ 8
 y = 33105.77794
 nearest whole integer:
 y = 33105
 Answer:
 there were 33105 cellphone users in 2000

There are many penguins on a hill. 53 penguins waddled off the hill. Now 21 penguins remain on the hill. How many penguins were on the hill to start?

74 penguins

72 penguins

32 penguins

34 penguins

Answers

Answer:

74 Penguins

Step-by-step explanation:

1. 53+21

2. =74

Penguins are my favorite animal. What's yours?

Answer:

There were originally 74 penguins on the hill.

Step 1: Determine the Values we Need

For starters, we need to define the variable that we will use to solve this equation. I will use x.

We know that our original amount is x, and we need to find it to solve the problem.

The Factsx stands for the original amount of penguins on the hill.53 penguins waddle off of the hill.21 penguins remain after the 53 penguins waddle off of the hill.

To find x, we will set up an algebraic equation that allows us to find the value easily.

Step 2: Set up the Algebraic Equation

Now, we will need to set up the equation with the facts we have determined.

We know that we need to set our equation equal to x to find our total. To do this, we know that our initial amount is x, and we remove 53 penguins from this total since they waddle off of the hill.

Since we "remove" from the total, this means that we will subtract 53 penguins from x, our initial amount. We are left with the 21 penguins that do not leave the hill, or otherwise, remain on the hill.

[tex]x - 53 = 21[/tex]

Step 3: Rearrange and Solve the Equation

Finally, we are ready to solve the equation to find our initial amount of penguins.

To solve this equation, we must combine our like terms.

Because our numbers (constants) do not have any letters (variables) attached to them, we will combine them.

The main goal of an algebraic equation is to get the variable (in this case, x) by itself. To do this, we can perform reverse operations to get the constants together.

You'll notice that 21 does not have a sign associated with it, but 53 does, and it is a subtraction symbol.

The reverse operation of subtraction is addition. Therefore, to combine the two values, we can add both 53 and 21 to each other to find x.

[tex]x = 53 + 21[/tex]

Using any method of choice, add the two values together.

[tex]x = 53 + 21 = 74[/tex]

Then, to simplify, remove the operation and only leave the sum of the operation.

[tex]\boxed{x = 74}[/tex]

Therefore, the initial number of penguins—the number of penguins on the hill to start—is equivalent to 74 penguins.

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Tamara says that raising the number i to any integer power results in either -1 or 1 as the result, since i^2 = -1. Do you agreed or disagree with Tamera? Explain

Answers

Final answer:

Tamara's claim that raising the complex number i to any integer power results in either -1 or 1 is incorrect. The powers of i follow a cyclic pattern which includes i, -1, -i, and 1.

Explanation:

I must disagree with Tamara's statement that raising the complex number i to any integer power results in either -1 or 1. The powers of i actually follow a recurring pattern: i^1 = i, i^2 = -1, i^3 = -i, i^4 = 1, and then the pattern repeats.

For i to the power of 1, the result is just i itself.For i to the power of 2 (i^2), the result is indeed -1.For i to the power of 3 (i^3), the result is -i.For i to the power of 4 (i^4), the result is back to positive 1.

So, while -1 and 1 are indeed in the sequence of results, they're not the only possibilities. Specifically, -i and i are also possible results of raising i to an integer power.

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Is 11p-7q polynomial

Answers

Answer:  Yes; this is polynomial.

Specifically, it is a "polynomial EXPRESSION" ; but not a "polynomial equation" ; because it is not an "equation.

There are more than one variables/variable expressions, so it is a polynomial.

You need to have a password with 4 letters followed by 2 even digits between 0 and 9, inclusive. if the characters and digits cannot be used more than once, how many choices do you have for your password?

Answers

Final answer:

The total number of possible passwords, considering the conditions that no letters or digits can be reused, and only even digits 0-9 can be used, would be 7,893,600.

Explanation:

This is a question of combinations and permutations. Firstly, consider the four letters. There are 26 letters in the English alphabet. Since you have four letters and none of them can be the same, the number of possibilities is 26 * 25 * 24 * 23. Next, consider the two numbers. Since we can only choose even numbers between 0 and 9 (which gives us 5 possible selections), and they cannot be the same, the number of possibilities is 5 * 4. Therefore, to find the total number of possible passwords, you multiply the possibilities for letters and numbers together. So, the number of

possible passwords would be 26 * 25 * 24 * 23 * 5 * 4, which equals to 7,893,600.

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7. Given the vertices of ∆ABC are A (2,-5), B (-4,6) and C (3,1), find the vertices following each of the transformations FROM THE ORIGINAL vertices: a. Rx = 3 b. T<3,-6> c. r(90◦, o)

Answers

Q1)
Rx = 3
in this reflection, the image has been reflected along the x = 3 line. then all the points on the image are reflected along this vertical line. the distance between each point and the vertical line is noted and by that same distance its moved to the opposite side of the vertical line, while the y coordinates stay the same.
A(2,-5)- x coordinate is 2, its 1 unit away from x=3, it should move by 1 unit to the other side of x = 3, then x = 4. y stays as it is.
A' - (4,-5)

B(-4,6) - distance from x = 3, is (-4-+3) is seven units, moves by 7 units to the other side
B' (10,6)

C(3,1) = distance from 3 = 0, therefore the point stays at is,
C' (3,1)

Q2)
next is a translation, in translation the size nor shape changes, each point in the original image moves the same distance in the same direction.
T (3,-6) (x,y) = this means that the x coordinates move by +3 points to the right and y coordinates move downwards by 6 units
A (2,-5) ---> (2+3,-5-6)
A' (5,-11)
B (-4,6) ---> (-4+3,6-6)
B' (-1,0)
C (3,1) ---> (3 + 3, 1-6)
C' (6,-5)

Q3)
r(90°,0)
this is a rotation done in the clockwise direction. then the image takes a rotation to the right direction around the origin. 
then the x, y coordinates of the preimage become ;
(x,y) = (y,-x)
A(2,-5) --> A' = (-5,-2)
B(-4,6) ---> B' = (6,4)
C(3,1)  ---> C' = (1,-3)

A rectangular deck
is 12 ft by 14 ft. When the length and width are increased by the same amount very becomes 280 squares ft. By how much were the dimensions increased ?

Answers

Both dimensions were increased by 127.

The other response seems more complex so probably ignore mine. I probably misinterpreted the question.

Original length: 14 ft. New length x + 14.
Original width: 12 ft. New width x + 12.

New area:

[tex] A = LW [/tex]  or [tex] LW = A [/tex]

[tex] (x + 14)(x + 12) = 280 [/tex]

[tex] x^2 + 14x + 12x + 168 = 280 [/tex]

[tex] x^2 + 26x - 112 = 0 [/tex]

[tex] x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a} [/tex]

[tex] x = \dfrac{-26 \pm \sqrt{26^2 - 4(1)(-112)}}{2(1)} [/tex]

[tex] x = \dfrac{-26 \pm \sqrt{676 + 448}}{2} [/tex]

[tex] x = \dfrac{-26 \pm \sqrt{1124}}{2} [/tex]

[tex] x = \dfrac{-26 \pm 2\sqrt{281}}{2} [/tex]

[tex] x = -13 \pm \sqrt{281} [/tex]

[tex] x \approx -29.76 [/tex]   or   [tex] x \approx 3.76 [/tex]

We discard the negative answer.

Answer:

Exact:
[tex] (-13 + \sqrt{281})~ ft [/tex]

Approximate:
[tex] 3.76 ~ft [/tex]

Find the area of the triangle that has a base of 4.2 mm and a height of 1.5 mm.

Answers

6.3 is your answer
I hope this helps

6.3 is the final answer

If p is a true statement and q is false then p V q is true

Answers

This is correct. p V q is basically an "or" statement. So the question is asking if p or q is true. So, as long as one of them is true, the overall question is true. 

Answer:

Step-by-step explanation:

True

Jennifer recorded the temperature of water samples and the time it took 50g of salt to dissolve in the samples. Jennifer's data models a direct variation. Which table contains Jennifer's data?

Answers

the answer is c. it look like this 
80°32 
83°33.2 
84°33.6 
90°36

Answer:

The answer is C.

Step-by-step explanation:

I know  that its c because i literatly just tried it and it said corect it was on USA. test prep

What is the measure of AC ? (First Picture)
Enter your answer in the box.
What is the measure of BC ? (Second Picture)
Enter your answer in the box.

Answers

Answer:

Part 1) [tex]arc\ AC=33\°[/tex]

Part 2) [tex]arc\ BC=130\°[/tex]

Step-by-step explanation:

Part 1) What is the measure of AC ?

we know that

The inscribed angle is half that of the arc it comprises.

so

[tex]m<ABC=\frac{1}{2}(arc\ AC)[/tex]

substitute the values and solve for x

[tex]2.5x+4=\frac{1}{2}(7x-2)[/tex]

[tex]5x+8=(7x-2)[/tex]

[tex]7x-5x=8+2[/tex]

[tex]2x=10[/tex]

[tex]x=5\°[/tex]

Find the measure of arc AC

[tex]arc\ AC=7x-2=7(5)-2=33\°[/tex]

Part 2) What is the measure of BC ?

we know that

The inscribed angle is half that of the arc it comprises.

so

[tex]m<BDC=\frac{1}{2}(arc\ BC)[/tex]

substitute the values

[tex]65\°=\frac{1}{2}(arc\ BC)[/tex]

[tex]2*65\°=(arc\ BC)[/tex]

[tex]arc\ BC=130\°[/tex]

What is the solution of the equation (x – 5)2 + 3(x – 5) + 9 = 0? Use u substitution and the quadratic formula to solve.

Answers

(x – 5)² + 3(x – 5) + 9 = 0

x² - 10x + 25 + 3x - 15 + 9 = 0

x² - 7x - 16 = 0

[tex]x = \frac{7 + \sqrt{(-7)^2-4(1)(-16)} }{2} [/tex] or [tex]x = \frac{7 - \sqrt{(-7)^2-4(1)(-16)} }{2} [/tex] 

[tex] x = \frac{7 + 3i \sqrt{3} }{2} [/tex] or [tex] x = \frac{7 - 3i \sqrt{3} }{2} [/tex] 

(Answer B)

Answer: [tex]x=\frac{7\pm 3i\sqrt{3}}{2}[/tex]

Explanation:

Since, given quadratic function, [tex](x-5)^2 + 3(x-5) + 9 = 0[/tex] -----(1)

let us consider,[tex]x-5=p[/tex] -----(2)

Put this value in equation (1),

We get, [tex]p^2+3 p+9=0[/tex], which is also a quadratic equation.

Since, quadratic formula for finding the root of quadratic equation of type [tex]ax^2+bx+c=0[/tex] is,  [tex]x=\frac{-b\pm\sqrt{b^2-4ac}} {2a}[/tex]

Here, a=1, b=3  and c=9, so, [tex]p=\frac{-3\pm\sqrt{3^2-4\times1 \times9}} {2\times1}[/tex]

Thus,  [tex]p=\frac{-3\pm3\sqrt{-3}} {2}[/tex] ⇒ [tex]p=\frac{-3\pm3i\sqrt{3}} {2}[/tex]   (because √-1=i)

Now, from equation(2) [tex]x-5=\frac{-3\pm3i\sqrt{3}} {2}[/tex]

⇒[tex]x=\frac{-3\pm3i\sqrt{3}} {2}+5=\frac{7\pm 3i\sqrt{3}}{2}[/tex]

⇒[tex]x=\frac{7\pm 3i\sqrt{3}}{2}[/tex]

Brian deposited $4000 into an account with 5.4% interest, compounded monthly. Assuming that no withdrawals are made, how much will he have in the account after 6 years?

Answers

The future value of the amount deposited will be given by:
FV=p(1+r/100n)^nt

where:
FV=future value
p=principle
r=rate
n=terms
t=time
thus substituting our values in the formula we get:
FV=4000(1+5.4/1200)^(6×12)
FV=$5,526.57

Answer: $5,526.57

A recipe calls for 1/4 cup of flour.Carter only a measurement cup that holds 1/8 cup. How can carter measure the flour he needs for his recipe

Answers

Carter needs an additional ⅛ cup.
⅛ + ⅛ = ¼

Answer:

Carter can measure the flour he needs for his recipe by filling his measurement cup twice.

Step-by-step explanation:

Since Carter has a smaller cup, he would have to fill his cup a number of times until the sum of the number of cups he has fill repeatedly adds up to the recipe requirement.

The number of times Carter would have to measure his cup with flour to get the recipe call may be computed by dividing the recipe call amount with the size of Carter's measurement cup

= 1/4 ÷ 1/8

= 1/4 × 8/1

= 2

What is the sum of the first eight terms of the series?

(−600)+(−300)+(−150)+(−75)+(−37.5)+...



Round the answer to two decimal places.




−1200.50

−1195.31

−1190.63

−1181.25

Answers

the answer is -1195.31

A principal of $400 is invested in an account at 6% per year compounded annually. What is the total amount of money in the account after 5 years? A. $526.00 B. $531.37 C. $535.29 D. $520.00

Answers

To find the outcome of compounded money, we use the following formula:
[tex]e = b \times (1 + \frac{i}{100} ) {}^{n} [/tex]

In this formula:
e represents the outcome
b represents the money at the beginning
i represents the interest rate
n represents the number of years.

Filling in this formula, we get:
[tex]e = 400 \times (1 + \frac{6}{100}) {}^{5} [/tex]
[tex]e = 400 \times 1.06 {}^{5} [/tex]
[tex]e = 535.29[/tex]
Therefore the answer is C. $535.29

The total amount of money in the account after 5 years is $535.29.

To calculate the total amount of money in the account after 5 years, we can use the compound interest formula: [tex]A = P{(1 + r/n)}^{(nt)[/tex], where A is the total amount, P is the principal, r is the annual interest rate, n is the number of times compounded per year, and t is the number of years.

Given that the principal is $400, the annual interest rate is 6%, and the compounding is done annually, we have:

A = 400(1 + 0.06/1)^(1*5) = 400(1.06)^5 = 400 * 1.338225 = $535.29

Therefore, the total amount of money in the account after 5 years is $535.29.

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What is the sum of 2 numbers is 100 and their difference is 6?

Answers

x +y = 100
x -y = 6
Adding these equations gives
2x = 106
x = 53

y = 53 -6 = 47

The numbers are 47 and 53.

Please help! 15 points!

Btw, you cannot answer in the file.....that's just a pic.....

Answers

You can find the value of x using the trigonometric function of cosine.

cos x = adj/hyp
cos 49 = x/55
55(cos 49) = x 
36.083 = x 

Hope I am right :)

How much is in the account after year 6 ??

Answers

i think the answer is c 
its actually 1155 but that the closest answer to it
hope it helps

Bc¯¯¯¯¯ is parallel to de¯¯¯¯¯. what is ab? enter your answer in the box.

Answers

this can help you to understand it

Cora arrived at school at 7:55 am She left for 1 hour for a doctors appointment. She was dismissed from school at 3:15 pm. How long was Cora at school?

Answers

add 7:55 and 1:00 and subtract that from 3:15

helpppppppppppppppppppppppppp

Answers

Answer:
perimeter = 6 + 3√2 ft

Explanation:
The triangle given is an isosceles right-angled triangle.
This means that two of its legs are equal = 3 ft
Now, we will get the length of the third leg which is the hypotenuse using the Pythagorean theorem as follows:
(third leg)^2 = (3)^2 + (3)^2
(third leg)^2 = 18
third leg = sqrt(18) = 3√2 ft

Finally, we will get the perimeter as follows:
perimeter = 3 + 3 + 3√2 
perimeter = 6 + 3√2 ft

Hope this helps :)

find all the zeros for each function.
p(x)=2x^3-3x^2+3x-2

*show work*

Answers

I like to let a graphing calculator help with polynomials of higher degree.

A graph of p(x) shows it has one real zero, at x=1. Dividing that out (and dividing out the scale factor of 2) reveals the remaining factor to be
.. (x -1/4)^2 +15/16
When we set this to zero, we have
.. (x -1/4)^2 +15/16 = 0
.. (x -1/4)^2 = -15/16
.. x -1/4 = i√(15/16)
and the remaining roots are
.. x = 1/4 ±i√(15/16)
.. x = (1 ±i√15)/4

The zeros are x = 1, x = (1 ±i√15)/4.

_____
You could use synthetic or long division to find
.. p(x)/(x -1) = 2x^2 -x +2
and then use any of several methods to determine the zeros of this are
.. x = (1 ±i√15)/4

what should you do first to simplify the expression (43 + 9) ÷ 76 + 5

Answers

Hi there!

You should always find the value inside the parenthesis first when simplifying an equation. 
Tell me if you need help solving the equation!

Hope this helps!
always find the value inside the parenthesis first when simplifying an equation.

expression (43 + 9) ÷ 76 + 5


 43+9  =52     52 ÷  76 + 5

Use the quadratic formula to solve 9x2 + 6x – 17 = 0.

Answers

the answer is c after solving the whole problem 

Answer:

The person that answered “C” is completely wrong. The answer is D. Mark me brainliest after you get the answer right :)

Step-by-step explanation:

The price of a 250 dollar coat increased 7% last year. The coat is now on sale for one half off. What is the sale price?

Answers

start: 250increase: 250(1 + 0.07), 250(1.07)sale: 0.5(250(1.07)

Ramon spends 2/5 of his monthly income on rent ,1/5 of his income on utilities and 3/4 of the amount remaining on food and recreation.He saves 193.50 a month,What is Ramon’s monthly income?

Answers

Let x = income
Then: 
Rent: [tex] \frac{2}{5} x[/tex]
Utilities:  [tex] \frac{1}{5} x[/tex]
Food and Recreation:  [tex] \frac{3}{4}(x-( \frac{2}{5} x+\frac{1}{5} x))= \frac{3}{10} x[/tex]

Now adding all the expenses: [tex] \frac{2}{5} x+ \frac{1}{5} x+ \frac{3}{10} x= \frac{9}{10} x[/tex]
We see that the expenses are 90% of the income, so the savings must be 10% of the income.
[tex] \frac{1}{10} x=193.5[/tex]
x=1935.0  this is your income  
Hope this helps...

The probability that a bakery has demand for 2 3 4 or 5 birthday cakes on any given day are 0.32, 0.24, 0.25 and 0.19 respectively. construct a probability distribution for this data

Answers

This would just look like a bar graph.

On the horizontal axis, put your 4 different categories of 2, 3, 4, or 5.

On the vertical axis, label it by the percents: 0.10, 0.20, 0.30, 0.40

Then, make a bar at the correct height for each category.

A rectangular note card has a perimeter of 18 inches and an area of 20 square inches. What are the dimensions of the note card?

Answers

5 by 4

4 x 5 = 20

5 + 5 + 4 + 4 = 18
The dimensions are 5 by 4,
hope I helped (:
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When you've carefully checked all the facts and your attitudes and still find that there's "just something" about your supervisor that's causing a problem in your relationship, you should suspect that ? A. you're not carrying your own weight. B. too much socializing is going on. C. there's a hidden attitude. D. there's an imaginary risk. The sum of the reciprocals of two consecutive even integers is 7/24. Write an equation that can be used to find the two integers. Find the two integers. List two characteristics of the North and two characteristics of the South. Make sure these characteristics are from before or during the Civil War. Examples: How they made money? Exports? Beliefs on slavery? Madison drove from Atlantic City to newmark. Madison drove for 284 miles at a constant speed of 58 mph how long did it take for Madison to get there? What is one way animals maintain homeostasis? By reproducing cells in an uncontrolled way By eliminating waste through the cell membrane By using sunlight to make food By breaking down water to make oxygen Which statements describe Jacksonian Democracy?Choose all answers that are correct Voluntary muscles can be controlled, while involuntary muscles cannot. Do you think stomach muscle is voluntary or involuntary? Julia and Maya are walking towards each other. When they started, the distance between them was 1600 feet. What will be the distance between them in 2.5 minutes, if they walk with the same speed: 80 feet per minute? Una was asked to write about predicting population means by taking the means of samples. She recorded a list of some statements generated from her classmates. Which statements are true? Check all that apply. The best prediction of the population mean is the value that falls between the least and greatest sample means. It is unlikely that the population mean will be the least or greatest mean from the samples. If the means of different samples are close in number, or have small variation, then they cannot be used to make predictions for the actual population. A more accurate prediction of the population mean can be made by decreasing the number of random samples. Samples are a random selection of data values from a population. To find the range of the sample means, subtract the least value from the greatest value. During the third century, rome underwent a prolonged period that came very close to destroying the empire. this period is known as the time of: a.the paxromana, when the huns sacked rome. b.the quickening, when the bureaucratic changes came rapidly. c.the five bad emperors, when rome had the worst emperors in its history. d.the augustan decay, when all the reforms of marcus aurelius were implemented. e.the barracks emperors, when rome had no fewer than twenty-six emperors in about fifty years. consider the history of venezuela. in this context, why might the people of venezuela have supported a leader such as chavez Me and my mate Dave order pizzas.I eat six eights of mine, Dave only manages two sevenths of his. If we put the remains together,can we make one whole pizza? What is decomposing fractions f(x)=x^2-2x-1 and g(x)=5x-1/7x-3 find f(x+7) and g(x/2) Select the answer that best completes this sentence: Natalia y Eduardo _______ (pensar) pasar el rato con sus amigos. piensa piensan piensas pensamos Four days before the 1997 500 Festival Parade, a fire destroyed 10 of the 14 floats. People wanted to know if the parade would be canceled. During the first two days after the fire, the Festival received an average of 22 incoming calls a minute. How many calls did the Festival receive in an hour? How many calls did the receive in 12 hours?**The parade went off as planned four days later. More than 250,000 people lined the streets to view huge posters and replicas of the floats. Heat can be transferred from one material to another by direct touch, by differences in density in a fluid, and by ______ conduction convection temperature difference radiation what fraction would you add to 29/6 to make 4 in the court's opinion in marbury entitled to his appointment Why Newtons first law is sometimes called the law of inertia?Because inertia is the same thing as frictionBecause inertia is the tendency of objects to resist changes in their motionsBecause inertia describes the application of force to an object in motionBecause inertia describes the application of force to an object at rest