△ABC∼△DEF , △ABC has a height of 20 inches, and △DEF has a height of 24 inches. What is the ratio of the area of △ABC to the area of △DEF ?

Answers

Answer 1
Let
b1-------------> base △ABC
b2-------------> base △DEF
A1-----------> area △ABC
A2-----------> area △DEF

we know that
h1=20 in
h2=24 in
A1=b1*20/2-------------> A1=10b1
A2=b2*24/2 ------------> A2=12 b2

if  △ABC∼△DEF
then 
b1/20=b2/24------------> b1=b2*[20/24]-----> b1=b2*[5/6]

What is the ratio of the area of △ABC to the area of △DEF?
A1=10b1
A2=12b2
A1/A2=(10/12)*(b1/b2)-------> (10/12)*(b2*(5/6)/b2)-----> (10/12)*(5/6)=50/72

A1/A2=50/72--------> 25/36

the answer is (25/36)


Related Questions

Order the set of numbers from least to greatest.

Answers

4, 4.23, square root of 18, 4 2/3

If your car gets 33 miles per​ gallon, how much does it cost to drive 370 miles when gasoline costs ​$2.80 per​ gallon?

Answers

i will check later hold on I KNOW IT

Which graph represents the function?

Answers

The resulting graph of the rational function is the Graph at the top right graph 2.

To depict the rational function f(x) =  2/(x - 1) + 3, we must consider its characteristics. The function has a vertical asymptote at x = 1 because the function is undefined at that point, and it has a horizontal asymptote at y = 3 due to the behavior of the function as x approaches infinity. The graph will approach these asymptotes but never cross them.

For values of x greater than 1, the function will decrease towards the horizontal asymptote because the (x - 1) in the denominator increases, which causes the value of f(x) to decrease.

However, because of the '+3' term in the function, the curve will approach y = 3 as x goes to infinity.

To graph this function, plot several points where x is not equal to 1, then draw the curve that passes through these points while approaching the respective asymptotes.

The portions of the graph should fall above the horizontal line y = 3 for x < 1 and approach y = 3 from below for x > 1.

Therefore, the resulting graph of the rational function is the Graph at the top right graph 2.

The probable question may be:

Which graph represent the rational function f(x)=2/x-1+3

You work at an ice-cream shop. One of your jobs is to order new ice-cream cones. You pick the cone that is 5 inches high and has a diameter of 3.5 inches. What is the volume of each cone? Use 3.14 to approximate pi. Round your answer to the nearest whole number.

Answers

The approsimate volume is 16.04 rounded to nearest whole number is 16.

Answer:

the correct answer is 16 cubic inches

Step-by-step explanation:

Which of the binomials below is a factor of this trinomial?

x2 - 3x - 10

A. x + 2
B. x - 2
C. x - 1
D. x + 1

Answers

x² - 3x - 10 =
+ 2x - 5x - 10 =
x(x+2) - 5(x+2) = 
(x+2)(x-5)

A. x + 2

The binomials below are a factor of this trinomial that will be x + 2. Option A  is correct.

What is a polynomial?

Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.

[tex]\rm a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]

It is given that, the expression is, x² - 3x - 10

Binomials in algebra are two-term expressions joined by a plus or minus sign, such as ax+b. While the second term might or might not, the first term always contains a variable.

A binomial can be solved or simplified for further work by factoring, which is the process of looking for simpler terms that, when multiplied together, produce the original binomial expression.

Thus, the binomials below are a factor of this trinomial that will be x + 2. Option A  is correct.

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Given a collection of paired sample data, the ____________ algebraically describes the relationship between the two variables, x and y.

Answers

data may be the answer 

Final answer:

The linear equation describes the algebraic relationship between two variables in a paired sample data set, with the slope and y-intercept being key components of this equation.

Explanation:

Given a collection of paired sample data, the linear equation algebraically describes the relationship between the two variables, x and y. The most fundamental representation of a linear association is through a linear equation, which graphically manifests as a straight line in a scatter plot. Two commonly used forms of linear equations are y = mx + b and y = a + bx. The latter is frequently used in statistical contexts to differentiate from the algebraic context.


In these equations, m or b (when used as a coefficient) is known as the slope, indicating the rate of change or how much y changes as x changes. The y-intercept represented by a is the point at which the line crosses the y-axis, typically where x equals zero. A linear relationship between two variables is confirmed when a scatter plot of the pair shows points that approximate a straight line.

140% of a number is 364. Find the number

Answers

140% = 1.4 
1.4(x)=364
364/1.4 = 260
x=260

The number whose 140% is 364 is 260.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Number = M

140% of M = 364.

140/100 x M = 364

Solve for M.

M = 364 x 100 / 140

M = 260

Thus,

140% of 260 is 509.6.

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Factor completely x^2 + 16.

(x + 4)(x + 4)
(x + 4)(x − 4)
Prime
(x − 4)(x − 4)

Answers

This is the  answer that i found (x4-81) hope it helps have a great day!

Answer: (x4-81) I searched it up..

Step-by-step explanation:

help me with this and I will give you brainly

Answers

DE is congruent to NP

Place the indicated product in the proper location on the grid. -4x 3 y 2 (7xy 4 )

Answers

-28x4y6 is the answer

Answer:

-28x^4y^6

Step-by-step explanation:

Given are two terms as

[tex]-4x^3y^2[/tex] and

[tex]7xy^4[/tex]

To find the product

we group like terms and find their product

Here we have -4 and 7 for coefficients : Product =-28

x terms are x^3 and x  hence product = x^(1+3) =x^4

y terms are y^2 and y^4 hence product = y^(2+4) = y^6

Hence product is

[tex]-28x^4y^6[/tex]

what is the solution to the following system?

5x+2y+z=4
x+2z=4
2x+y-z=-1


A. x = 0, y = 1, z = 2

B. x = 1, y = –1, z = 2

C. x = 1, y = 0, z = –1

D. x = 2, y = 1, z = 0

Answers

We solve the system by applying the following steps:
 1) Write two of the variables in terms of the third variable. For this case we write x, y in terms of z.
 2) Substitute the expressions in the first equation since it relates all the variables.
 3) Clear z.
 4) with the value of z, find x, y
 Answer:
 A. x = 0, y = 1, z = 2
 See attached image.
→→→A. x = 0, y = 1, z = 2

What is the solution of the square root of 3x+28-8=x (-8=x is not in the square root) any explanation and answer is appreciated!

Answers

When you use a graphing calculator to solve these, it is generally convenient to rewrite the equation so you are looking for a zero.
.. √(3x +28) -8 -x = 0

x = -4 . . . . . . from the graph

_____
If you add 8 and square both sides, you get
.. 3x +28 = (x +8)^2
.. x^2 +13x +36 = 0
.. (x +9)(x +4) = 0
.. x = -9 or -4 . . . . . . . the -9 solution is extraneous

The length of a rectangle is 3 m longer than its width.
The area of the rectangle is 154m^2
What is the width of the rectangle?

___m

Answers

Sometimes when you're given dimensions that differ by some amount, it is easier to work with their average value. Let x represent the average of length and width of the rectangle. The length and width differ from this average value by 1.5 m. Then the area is
.. (x +1.5)*(x -1.5) = 154
.. x^2 -2.25 = 154
.. x^2 = 156.25
.. x = 12.5
The width is 1.5 m shorter than this, or 11 m.

_____
Solved in the conventional way, you are looking for factors of 154 that differ by 3. This means you have to find the factors of 154, or use the quadratic formula.
.. 154 = 1*154 = 2*77 = 7*22 = 11*14 (the pair we want)
Once you have the factorization of 154, you have the answer. No equations are necessary, really.

a ladder leans against a wall and reaches a point 35 feet up the wall.The base of the ladder is 7 feet from the wall.To the nearest tenth of a foot, what is the length of the ladder

Answers

In this scenario, imagine a right-angle triangle. You are given the two legs and you are supposed to figure out the hypotenuse. So, let's use the Pythagorean's Theorem to do just that:
[tex]a^2+b^2=c^2[/tex]
[tex]c = \sqrt{a^2+b^2} [/tex]

Plug in values:
[tex]c = \sqrt{35^2+7^2}= \sqrt{1274} = 35.69[/tex]

Rounded to the nearest foot, is, 35.69ft.

Veronica bought a purse for 25 off its full price. what was the full price of the purse if Veronica paid $35.85 before sales tax? A) $59.75 B) $47.80 C) $ 60.85 D) $36.10

Answers

B- $47.80 for apex that's what i got.

Final answer:

The full price of the purse is C) $60.85.

Explanation:

The price at which the purse is bought = $25

The price paid = $35.85

To find the full price of the purse, we need to add the discount amount to the price Veronica paid.

Since she got $25 off, the discount amount is $25.

Therefore, the full price of the purse is

= $35.85 + $25

= $60.85.

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Dakota and Christine went shopping. Dakota bought two scarves and one hat for $13 Christine bought one scarves and two hats for $14 what is the price of one hat and one scarf

Answers

One scarf=s
One hat=h

2s+h=13
s+2h=14

h=13-2s
(plug that into the other equation)

s+2(13-2s)=14
s+26-4s=14
26-3s=14
-3s=-12
s=4

One hat=$5
One scarf=$4
5+4=9
Price of one hat AND one scarf is $9

A bag contains 2 red marbles, 3 blue marbles, 4 yellow marbles, and 3 green marbles. In how many ways can choosing not yellow occur?

Answers

There will be 8 ways to not pick yellow because there are 4 yellow and 3 green and blue and 2 red
[tex]3 + 3 + 2 = 8[/tex]

A tire at the top of a hill starts rolling down the hill. If the diameter of the tire is 36 inches, how many inches has the tire rolled if it has rotated exactly 10 times down the hill?
A) 180
B) 360
C) 36π
D) 360π

Answers

The answer would be 360pi. 

Answer:

Therefore ,(D)  360π inches.

Step-by-step explanation:

Given: A tire at the top of a hill starts rolling down the hill. If the diameter of the tire is 36 inches.

To find: How many inches has the tire rolled if it has rotated exactly 10 times down the hill.

Solution : We have given that diameter of tire = 36 inches.

 Radius = [tex]\frac{Diameter}{2}[/tex]

  Radius = [tex]\frac{36}{2}[/tex]

 Radius = 18 inches.

Circumference of tire = 2 * π radius

Circumference of tire = 2 *  π 18

                                    = 36π

We need to  rolled the tire 10 times down the hill

then,  10 * 36π = 360π inches.

Therefore ,(D)  360π inches.

Question 1(Multiple Choice Worth 1 points)
(05.02 LC)

Which equation does the graph below represent?

A coordinate grid is shown. The x-axis values are from negative 5 to positive 5 in increments of 1 for each grid line, and the y-axis values are from negative 20 to positive 20 in increments of 4 for each grid line. A line is shown passing through the ordered pairs negative 4, 16 and 0, 0 and 4, negative 16.

y = fraction 1 over 4x
y = 4x
y = fraction negative 1 over 4x
y = −4x

Answers

If you can't tell "by inspection" or by computing the change in y (-16) divided by the change in x (4) as -4, then you can always check to see which of the equations predicts the proper value for y.

1) (1/4)*(-4) = -1, not 16
2) 4*(-4) = -16, not 16
3) (-1/4)*(-4) = 1, not 16
4) -4*(-4) = 16 . . . . as required

The 4th selection is appropriate.

You have five identical pieces of equipment. There is a 1 in 10 chance that each piece will fail in a year. What is the likelihood that NONE of the pieces fail during a year?

Answers

Assuming failures are independent (not due to design flaw), the probability of no failures is
.. (1 -0.1)^5 = 0.59049

The probability that none of the five identical pieces of equipment will fail during a year is approximately 59.049%, calculated using the statistical independence of each piece's probability of not failing, which is 0.9, raised to the power of 5.

The question is asking for the probability that none of the five pieces of equipment fails within a year when there is a 1 in 10 chance of failure for each piece of equipment. To calculate this, we use the principle of statistical independence. If the chance that one piece of equipment does not fail is 9 in 10 (or 0.9), then the probability that all five do not fail is 0.9 raised to the power of 5.

Mathematically, this is calculated as:

[tex](0.9)^5[/tex]= 0.9 * 0.9 * 0.9 * 0.9 * 0.9

Performing the multiplication, the probability that none of the five pieces fail during a year is approximately 0.59049.

In conclusion, there is a 59.049% chance that none of the identical pieces of equipment will fail during a year, assuming that the failures are statistically independent events.

helppppppppppppppppppppppppppp

Answers

√9 = 3

3 is a real number , a whole number , a rational number , an integer and a natural number ,

So last option is correct

Set of all natural numbers , set of all whole numbers , set of all integers, set of all rational numbers , set of all real numbers.

The average time spent sleeping (in hours) for a group of medical residents at a hospital can be approximated by a normal distribution, with mean of 6.1 hours and standard deviation of 1.0 hour. Let x represents a random medical resedent selected at the hospital. Find P(x < 5.3).

Answers

First we calculate the z-score for this situation.
[tex]Z=\frac{X- \mu}{\sigma} = \frac{5.3-6.1}{1} = -0.8[/tex]
Finding P(x < 5.3) is the same as finding P(z < -0.8).  Using a table of standard normal distribution and z-scores we see that the probability is 0.21186.

A geometry teacher asked Charlene to define “acute triangle.” Charlene said that an acute triangle is a triangle whose three interior angles have measures less than 90°90°. Is Charlene’s definition valid?

A.Yes, because no right triangles fit this definition.
B.No, because some scalene triangles fit this definition.
C.Yes, because this definition fits all acute triangles and does not fit triangles that are not acute.
D.No, because not all acute triangles fit this definition.

Answers

By definition we have to:
 Acute triangle - It is a triangle that has all acute angles. An acute angle is one whose degree of measurement is less than 90.
 Therefore, Charlene's definition is correct.
 Charlene said:
 triangle is a triangle whose three interior angles have measures less than 90 °
 Answer:
 C.Yes, because this definition fits all acute triangles and does not fit triangles that are not acute.

Answer:

C.Yes, because this definition fits all acute triangles and does not fit triangles that are not acute.

Step-by-step explanation:

HELP PLEASE! Are the two triangles similar? How do you know?

Answers

No, they are both measuring a different degree range, I hope this helps

Answer:

The two triangles are similar by AAA

Step-by-step explanation:

we know that

If the two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding angles are congruent

Remember that

The sum of the internal angles of a triangle must be equal to [tex]180\°[/tex]

so

In the triangle CDE

Find the measure of angle E

[tex]m<C+m<D+m<E=180\°[/tex]

substitute the values and solve for m<E

[tex]60\°+53\°+m<E=180\°[/tex]

[tex]m<E=180\°-(60\°+53\°)=67\°[/tex]

The measures of internal angles triangle CDE are [tex]60\°-53\°-67\°[/tex]

In the triangle FGH

Find the measure of angle G

[tex]m<F+m<G+m<H=180\°[/tex]

substitute the values and solve for m<G

[tex]60\°+m<G+67\°=180\°[/tex]

[tex]m<G=180\°-(60\°+67\°)=53\°[/tex]

The measures of internal angles triangle FGH are [tex]60\°-53\°-67\°[/tex]

therefore

The two triangles are similar by AAA

TANYA HAS A DOG LEASH THAT IS 4 YARDS LONG SHE SHOORTENS THE LEASH BY 6 FEET. WHAT IS THE LENGTH OF THE SHORTENED LEASH

Answers

The length of the shortened leash is 6 feet because there are 3 feet in a yard. 4 times 3 equals 12. Then you would do 12 minus 6 to get your new answer of 6 feet!

Answer:

Its 6 feet

Step-by-step explanation:

five cards are drawn from a standard deck of cards. each card is replaced after being drawn. what is the probability of the following event: p(3 and 3 and 3 and 2 and 2)?

Answers

the probability of the next card being 3 is a 4/5 chance

General Idea:

If A and B are independent, then the probability that events A and B both occur is:

[tex] p(A\; and\; B) = p(A) \times p(B). [/tex]

In other words, the probability of A and B both occurring is the product of the probability of A and the probability of B

Applying the concept:

Five cards are drawn from a standard deck of cards. Each card is replaced after being drawn.

There are four 3's in a deck of card, four 2's in a deck of card. In a deck of card there are 52, so...

[tex] \\[tex] p(3\; and\; 3\; and\; 3 \; and \; 2 \; and\; 2)=\frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \\ \\ Multiply \; numerator \; with \; numerator \; and \; denominator \; with \; denominator\\ \\ \frac{4 \cdot 4 \cdot 4 \cdot 4 \cdot 4}{52 \cdot 52 \cdot 52 \cdot 52 \cdot 52} \\ \\ Cancel \; Common\; Factor\\ \\ \frac{1 \cdot 1 \cdot 1 \cdot 1 \cdot 1}{13 \cdot 13 \cdot 13 \cdot 13 \cdot 13} =\frac{1}{13^5} =\frac{1}{371293} [/tex] \; =\; p(3) \times \; p(3) \times \; p(3) \times \; p(2) \times p(2) [/tex]

The cost of attendance at State College is $19,500 for the first year. Devise a periodic savings plan that will allow you to make small deposits for 5 years at a simple interest rate of 1.5% and save enough to pay for the first year at the college. 15 points!@!!

Answers

We are told to use simple interest rate. Formula for this is:
[tex]A=P*(1+r*t)[/tex]

Where:
A= total accumulated amount (principal + interest)
P= principal
r= yearly percentage rate
t= number of years

We need to save $19500 for the first year at a college. This is the amount we will have at the account after five years. In our case this is A.
Principal is the amount we need to put into savings to get the total amount needed. In our case this is P.
Yearly percentage rate is the percentage by which our savings increase at the end of a year. In our case this is r.
t is number of years that we are holding our money on the bank account.

To solve this problem we will assume that we are putting same amount each month on the bank account.

We are given:
A=$19500
P=?
r=1.5%
t=5 years

First step is to transform r into decimal number:
[tex]r= \frac{1.5}{100} =0.015[/tex]

Now we get back to our formula and we solve it for P:
[tex]A=P*(1+r*t) \\ P= \frac{A}{1+r*t} [/tex]
We insert numbers and we get our principal:
[tex]P= \frac{19500}{1+0.015*5} \\ P=18139.53[/tex]

We need to put $18139.53 into savings to get required amount after 5 years or 5*12=60months. Assuming that we put same amount each month into savings we need to put
[tex]18139.53 / 60 = 302.33[/tex]

This is our solution for this problem. This is closest to the amount we would need to put in real life. In real life we would earn interest onto interest and our monthly amount would be smaller.

Help!!!!! Please!!!
Using the given xy-graph, find the equation of the given line E in slope-intercept form.

Answers

The equation for line E is x = 8.
This is because the line intersects the x-axis at the point (8,0)

The equation of line E will be x = 8.

What is a linear equation?

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

From the diagram, line E is perpendicular to the x-axis and parallel to the y-axis.

The slope of the line which is parallel to the y-axis will be ∞. Then the equation of line E will be

y = ∞x + c

y = (1/0)x + c

0y = x + c

x + c = 0

From the graph, the value of the variable c will be negative 8.

Then the equation of line E will be x = 8.

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Which ordered pairs are solutions to the inequality x+3y≥−8?

Select each correct answer.




a. (−6, 0)

b. (0, −3)

c. (−5, −1)

d. (−16, 2)

e. (−1, −2)

Answers

To find whether each solution is a solution to the ineqiality, we need to plug it into the equation.

Let's try the first one:

-6 + 3(0)>=-8
-6 + 0 >= -8
-6 >= -8
This is true, therefore this is a solution.

0 + 3(-3)>=-8
-9 >= -8
No, this is not a solution.

-5 + 3(-1) >= -8
-5 + -3 >= -8
-8 >= -8
Yes, this is a solution.

-16 + 3(-2) >= -8
-16 + -6 >= -8
-22 >= -8

No, this is not a solution.

-1 + 3(-2) >= -8
-1 + -6 >= -8
-7 >= -8

Yes, this is a solution.

Answer: a, c, and e are solutions.

Hope this helps!

The average rate of change from x = 0 to x = 15 is about −4.667. How does the average rate of change from x = 0 to x = 20 compare to this number? The average rate of change from x = 0 to x = 20 is decreasing the average rate of change from x = 0 to x = 15.

Answers

The top one is slower than and the bottom answer is -3.9

Answer: The average rate of change from x = 0 to x = 20 is decreasing

✔ slower than

the average rate of change from x = 0 to x = 15.

Suppose that the height of the slide is 2 feet, when x = 20. What is the average rate of change over the entire slide?

-3.9

Step-by-step explanation:

So, the two answers are: Slower than, and -3.9

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