Given a right triangle ABC with altitude BD drawn to hypotenuse AC. If AC = 24 and DC = 6, what is the length of BC?

Answers

Answer 1

Answer:

BC = 12

Step-by-step explanation:

BD is the altitude, it breaks ΔABC into two similar triangles:

ΔABD ~ ΔBCD

The ratios of corresponding sides:

AD/BD = BD/DC ⇒ BD² = AD*DC ⇒ BD² = (24 - 6)*6 ⇒ BD² = 108

On the other hand:

BC² = BD² + DC² ⇒ BC² = 108 + 6² = 144 BC = √144BC = 12


Related Questions

Which number(s) below belong to the solution set of the equation? Check all
that apply
x + 9 = 26
A. 17
B. 234
C. 52
D. 35
E. 26
F. 3

Answers

Answer:

A

Step-by-step explanation:

x + 9 = 26

x = 17

Answer:

A.17

Step-by-step explanation:

17+9=26

select the expression that is equivalent to (x-7)

Answers

Yes because it is correct

What is the explicit formula for this arithmetic sequence?
-10,-17, -24, -31

Answers

Answer:

 [tex]x_{n} =[/tex] -10 - 3(n-1)

Step-by-step explanation:

The answer is

xn =  -10 - 3(n-1)

Help is needed please!!!!

Answers

Answer:

31/20

Step-by-step explanation:

You need to plug in x as y-3.

so instead of 10x+10y=1 it is 10(y-3)+10y=1

Then just simplify the equation to find the value of y

A group of friends wants to go to the amusement park. They have no more than $230 to spend on parking and admission. Parking is $8, and tickets cost $27.75 per person, including tax. Write and solve an inequality that can be used to determine xx, the number of people who can go to the amusement park.

Answers

Answer:

6 people

Step-by-step explanation:

$230 - $8 = $222

x · 35.75 = 222

x · 35.75 ÷ 35.75 = 222 ÷ 35.75

[tex]x=6\frac{30}{143}[/tex]

Someone please help me thanks

Answers

Answer:

a. 7.2

Step-by-step explanation:

CAH (cos = adj/hyp)

cos53 = b/12; cross multiply

cos53*12 = 7.2

A would be your answer caus i’ve done it

Consider angle θ in Quadrant II, where cosθ=−12/13. What is the value of sinθ?

Answers

Answer:

The value of sin theta is 5/13

Step-by-step explanation:

In the second quadrant, sin is positive and cos is negative

Cos theta = -12/13 = adjacent/hypotenuse

Sin theta = opposite/hypotenuse

opposite = sqrt(hyp² - adj²) = sqrt (13² - 12²) = sqrt (169 - 144) = sqrt (25) = 5

Sin theta = opposite/hypotenuse = 5/13

Does anyone know the answer ?!?


Answers

Answer:

40/100 = .4 = 40%

Step-by-step explanation:

the answer is 40% for this question

which event has exactly 12 possible outcomes?

tossing a coin 6 times

tossing a coin and randomly choosing 1 of 4 different cards

rolling a number cube with sides labeled 1 -6 and then rolling the number cube again

rolling a number cube with sides labeled 1-6 and tossing a coin


please help me TwT

Answers

Answer:

rolling a number cube with sides labeled 1-6 and tossing a coin

Step-by-step explanation:

Role dice and flip coin ;3 úwù

Please help I’ll give brainliest

Answers

Answer:

2 is the base

Step-by-step explanation:

2^12

The 2 is the base and the 12 is the exponent

Evaluate the expression when a=8.

a²-9=?

Answers

Answer:

(a-3)(a+3) is the answer

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {55}}}}}}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex] {a}^{2} - 9[/tex]

Substituting the value "[tex]a = 8[/tex]" in the above expression, we have

➺ [tex] \: {8}^{2} - 9[/tex]

➺ [tex] \: (8 \times 8) - 9[/tex]

➺ [tex] \: 64 - 9[/tex]

➺ [tex] \: 55[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]

CAN SOMEONE HELP ME OUT WITH THIS PLEASE AND THINK YOU

Answers

Answer:

[tex]10\frac{7}{18}[/tex]

Step-by-step explanation:

First revert it to improper fraction.

[tex]\frac{13}{2} +\frac{35}{9} \\\\[/tex]

Now put them to a common denominator.

[tex]\frac{187}{18}[/tex]

=> [tex]10\frac{7}{18}[/tex]

Practice D. Factor each trinomial.
1.
x² – 2x- 8
I
2.
y2 – 13y + 42
3.
m2 - 6m - 7


Help me answer those three factor please

Answers

Answer:

So 1) x²-2x-8

= x(x-2-8/x)

2) y²-13y+42

= y(y-13+42/y)

3) m²-6m-7

= m(m-6-7/m)

Hope it helps

plsss help (on pic)
First will put brainliest

Answers

Answer:

7 over 2x-2

Step-by-step explanation:

Answer:

g^-1 •7

7g^-1

7•1/g

answer is 7/g

I hoped I helped!! :)

pls help my computers about to die lol ​

Answers

Answer:

Elapsed 10 hours and 50 minutes

Step-by-step explanation:

So it's 5:25 pm to 4:15 am.  

It goes by 50 mins to get from 5:25 to 6:15.

Now the hours.

It has passed 10 hours to get 6:15 pm to 4;15 am.

Based on the picture below (note that it is not drawn to scale), Maggie says that . Is she correct? Explain why or why not.

Answers

Answer:

Step-by-step explanation:

By using the property of similar triangles,

"Corresponding sides of two similar triangles are proportional"

If ΔSMA ~ ΔPOD

[tex]\frac{SM}{PO}=\frac{MA}{OD}=\frac{SA}{PD}[/tex]

[tex]\frac{6}{10}=\frac{5}{10}=\frac{5}{12}[/tex]

[tex]\frac{3}{5}=\frac{1}{2}=\frac{5}{12}[/tex]

Since, ratios of corresponding sides are not equal,

Therefore, the given triangles are not similar.

3. Which of the following is equivalent to
3-3

Answers

Step-by-step explanation:

must be _1/27 in my opinion it's that

Compare. Use >, <, or =.

123,546,789 >, <, or =, 123,456,789

please help

Answers

Step-by-step explanation:

123,546,789 > 123,456,789

#CMIIW

Which relationship has a zero slope? A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 2, 2, 2, 2. A two column table with five rows. The first column, x, has the entries, negative 3, negative 1, 1, 3. The second column, y, has the entries, 3, 1, negative 1, negative 3. A coordinate plane with a straight line starting at (negative 5, negative 5) and passing through the origin, and ending at (5, 5) A coordinate plane with a straight line starting iat (negative 2, 5) and passing the x-axis at (negative 2, 0), and ending at (negative 2, 5).

Answers

Answer:

y=3    x=1

Step-by-step explanation:

Answer:

above one is correct. I think so

¿Cuánto mide el lado de un terreno cuadrado, si su área 144 m2?

Answers

Answer:

72

Step-by-step explanation:

all you had to do was divide by 2

Determine whether the dilation from the figure on the left to the figure on the right is an enlargement or a reduction. Then find the scale factor of the dilation.

A : Reduction scale factor 1/14
B : Enlargement; scale factor 14
C : Enlargement scale factor 0.5

Answers

Answer:

A.

Step-by-step explanation:

we are going from a large shape to a smaller shape. the proof is that the side lengths go down from 7m to 0.5m. so, it is a reduction.

and the scaling factor s ? what do we need to multiply the original side lengths with to get the new ones ?

7 × s = 0.5 = 1/2

s = (1/2)/7 = (1/2)/(7/1) = (1×1)/(2×7) = 1/14

=> answer A is correct

The dilation from the figure on the left to the figure on the right is a reduction.  

Reduction scale factor 1/14.

The correct option is A.

What is a scale factor?

The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller).

Given:

We have given that two figures.

The dilation from the figure on the left to the figure on the right is a reduction.

And the scale factor is,

= actual / scale

= 1/(7 / 0.5)

= 1/14

Therefore, the scale factor is 1/14.

To learn more about the scale factor;

https://brainly.com/question/29464385

#SPJ2

Answer for all of them

Answers

the answers are in the picture

solve for " x "

[tex]x = 42 - 9[/tex]

Answers

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {x\:=\:33}}}}}}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex]x = 42 - 9[/tex]

➼[tex]\:x = 33[/tex]

Therefore, the value of [tex]x[/tex] is 33.

[tex]\sf\pink{Thank\:you. \:ヅ}[/tex]

Answer:

x =33

Step-by-step explanation:

x = 42-9

We are solving for x, which is already isolated

42-9 = 33

x = 33

Check 33+9 = 42

lines that intersect and form four right angles are called?​

Answers

Parallel lines are lines in a plane that are always the same distance apart. Parallel lines never intersect. Perpendicular lines are lines that intersect at a right (90 degrees) angle.

The value of a car has decreases by 5% each year. Sophie bought a car two years ago for £10000 work out the value now .

Answers

Answer:

£9000

Step-by-step explanation:

= £10 000× 5 ×2

100

= 1000

= £10 000-1000

= £9000

Solve −1/4x=7 please

Answers

Answer:

x = -28

Step-by-step explanation:

−1/4x=7

Multiply each side by -4 to isolate the variable

-4 *  −1/4x= -4*7

−1/4x=7

Help pls!! this is a presentation I’m doing in class and I NEED this completed rn, ASAP!!! . What I need is just the answers for the picture below and I NEED the explanation to all of them, and if you can pls try to give a similar example to these and solve it or what did u use to solve it. (Only 1 example that is similar) Thank you so much!

Answers

15. 70° because a right angle is 90° and we have the angle of ADB which is 20°. So 90°-20°=70°.

16. 70° because angle PSQ is 60° and angle QSR is 10°. So 60°+10°=70°.

17. 55° because it says it in the explanation. I assume this is a typo and they meant to ask the measurement of ADC and in that case it would be 130° because angle ADB is 75° and angle BDC is 55°. 75°+55°=130°.

18. 40° because angle PSQ is a right angle which means it's 90°. So 130°-90°=40°.

19. 140° because angle ADB is 120° and angle BDC is 20° so 120°+20°=140°.

20. 125° because again it's in the explanation. But if it's a typo and they meant what is the measurement of PSQ then it is 50° because PSR is 125° and QSR is 75° so 125°-75°=50°.

Hope this helps! :)

binomial theorem to expand (x+4)^4

Answers

Answer:

Step-by-step explanation:

(x+4)^2.(x+4)^2

= x^4 +16x^3+96x^2+256x+256

Sam and Mary collect marbles. “If you give me 5 marbles I’ll have twice as many as you.” said Sam to Mary.
“But if you give me 4 marbles wwe would have the same number said Mary to Sam.
How many marbles do they have altogether?

Answers

Answer:

54 marbles

Step-by-step explanation:

The question is a word problem leading to a simultaneous equation

Let 'x' represent the initial number of marbles with Sam, and let 'y' represent the initial number of marbles with Mary,

If Mary gives Sam 5 marbles, we have;

x + 5 = 2 × (y - 5)...(1)

If Sam gives Mary 4 marbles, we get;

x - 4 = y + 4...(2)

From equation (1), we get;

x + 5 = 2 × (y - 5) = 2·y - 10

x = 2·y - 10 - 5 = 2·y - 15

x = 2·y - 15...(3)

From equation (2), we have;

x - 4 = y + 4

∴ x = y + 4 + 4 = y + 8

x = y + 8...(4)

Equating the two values of 'x' in equation (3), and equation (4), we get;

2·y - 15 = y + 8

2·y - y = 8 + 15 = 23

∴ y = 23

From equation (4), we get;

x = y + 8 = 23 + 8 = 31

x = 31

The total number of marbles they have altogether = x + y

However, x + y = 23 + 31 = 54

Therefore;

The total number of marbles they have altogether = 54 marbles.

Consider the trapezoid shown below.
6 in.
4 in.
6 in.
6 in.
(not drawn to scale)

Answers

Answer:

36

Step-by-step explanation:

1/2bh

1/2 (6*4) =12

Considering there are three triangles we will multiply by 3

12*3=36

Other Questions
Which is the Value if this expression when m = 3 and n = -5 A box with a square base and open top must have a volume of 256000 c m 3 . We wish to find the dimensions of the box that minimize the amount of material used. First, find a formula for the surface area of the box in terms of only x , the length of one side of the square base. what is the purpose of advertising magazines? In an oxidation-reduction reaction, the substance oxidized always ________. a. takes on oxygen atoms b. gives up hydrogen atoms c. gains electrons d. loses electrons e. becomes a charged species Neil is buying steak for a cookout on Saturday. Steak is on sale for $9.62 per pound. If he buys 7.5 pounds of steak, how much money does he spend? HELP MATH ANSWER QUESTION A payday loan company charges a $90 fee for a $500 payday loan that will be repaid in 16 days.Treating the fee as interest paid, what is the equivalent annual interest rate? the assignment for this lesson is to compare and contrast the objectivity of two sources,representing two different media,that discuss the same topic or event. you must also provide an objective summary of the sources to show the reader thar you have a goood understanding of the content Which of the following statement about capital market stakeholders is true Group of answer choices oftentimes capital market stakeholders, product market stakeholders, and organizational stakeholders disagree with each other Offering cash dividends to stockholders will please all the capital market stakeholders within groups, capital market stakeholders are always agree with each others for all the firms, capital market stakeholders are the most important stakeholders for firms to cater to Your sitting with your friend in the am she chokes on candy whats the best way to help IlusWhat are the gross sales?Income StatementFor the Year Ended August 31, 2012RevenuesStudent Lessons$29,520.00Recital Sales15,900.00Total Revenues:45,420.00ExpensesCostumes and AccessoriesBuilding MaintenanceTotal Expenses:16,700.0011,320.0028,020.00*Call numbers in 000s) a phlebotomy technician has collected a neonatal screening card. which of the following actions should the technician take to properly dry the blood stop collection card? helppPlzzzIts AQuestion- Steven earns extra money babysitting. He charges $29.00 for 4 hours and $50.75 for 7hours.Enter an equation to represent the relationship. Let x represent the number of hoursSteven babysits and y represent the amount he charges. (1) The recent anonymous donation to Kent Middle School needs tobe put toward replacing damaged materials in the school library (2)During the record rainfall in April, the library roof leaked and ruined anumber of crucial items in the library's reference section. (3) Everysingle world atlas is now covered in mold and warped beyond use.(4) All in all, over 50 percent of the collection was damaged in someway. (5) Others have pointed out that we should be allocating moneyto computers and not books, since this is where students will bedoing most of their research. (6) What these critics are forgetting isthat hands-on research in the library provides a sense of wonder andreal-world discovery that engages the senses in a way that nocomputer can. (7) In short, we need to restock the library to ensureour students have a variety of learning opportunities at theirfingertips and are not just locked behind a blinking screen.Which of the following transitions should be added to the beginning ofsentence 6 to best enhance the organization of the paragraph?A. Consequently,B. Firstly,C. However,D. Regardless, During a nature walk, Mary identified24 species of animals and plants. Mary said1/5of the species she identified wereanimals. Can this be correct? Explain. Why do the poles experience about six months day and six months night? critically discuss three nagative reosons why some people join protest action The Jenkins family's monthly budget isshown in the circle graph. The family has amonthly income of $4,800. How muchmoney do they spend on transportationeach month?Emergency fund5%Transportation5%Housing30%Medical22%Food15%Clothing6%Entertainment7%Savings10% 5 ... 1,2 ... 3,4 ... 1,2,4 .. 5 ... ??? What is the surface area of a cube that measures 4 inches on each side? ____ square inches