HELP 100+ points

What is the length of the base of an isosceles triangle if the center of the inscribed circle divides the altitude to the base into the ratio of 12:5 (from the vertex to the base), and the length of a leg is 60 cm?

Answers

Answer 1

Calculate half the base by multiplying the length of a side ( 60 cm) by the fraction of the ratio from the base to the vertex ( 5/12).

Then multiply that by 2 for the width of the base.

60 x 5/12 = 300/12 = 25 cm.

Full width = 25 x 2 = 50 cm.

Answer 2

Answer:

Full width = 25 x 2 = 50


Related Questions

A membership at a swimming pool costs a flat fee of $100, plus $50 per person. If x stands for the number of people, then the membership cost is modeled by which equation?

y=150x
y=100+50+x
y=100x+50
y=50x+100

Answers

Answer:

y=50x+100

Step-by-step explanation:

y=mx+b

100 is b because its a flat fee

The slope is 50 because it is dependent on x, the amount of people.

The correct answer is y=150x.For example, if I were to equal 300. Then that would mean two people would have bought the membership. So, X equals two.

PLEASE HELP ~ 15 POINTS

Which expression is equivalent to (n^3/2 ÷ n^-1/6)
A. n^27
B. n^-27
C. n^-4
D. n^-5

Answers

For this case we must simplify the following expression:

[tex](\frac {n ^ {\frac {3} {2}}} {n ^ {- \frac {1} {6}}}) ^ {- 3}[/tex]

By definition of power properties we have:

[tex]a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}[/tex]

Then, rewriting the expression:

[tex](n ^ {\frac {3} {2}} * n ^ {\frac {1} {6}}) ^ {- 3} =[/tex]

To multiply powers of the same base, we put the same base and add the exponents:

[tex](n ^ {\frac {3} {2} + \frac {1} {6}}) ^ {- 3} =\\(n ^ {\frac {18 + 2} {12}}) ^ {- 3} =\\(n ^ {\frac {20} {12}}) ^ {- 3} =\\(n ^ {\frac {5} {3}}) ^ {- 3} =[/tex]

We multiply the exponents:

[tex]n ^ {\frac {-15} {3}} =\\n^{-5}[/tex]

ANswer:

Option D

2. I need help with question in the attached picture!

Answers

Answer:

Option D is correct.

Step-by-step explanation:

2x^2 -4x +9

We need to find root of the equation.

We will use quadratic equation to solve.

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

here a =2, b=-4 and c=9

Putting values and finding the value of x

[tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-(-4)\pm\sqrt{(-4)^2-4(2)(9)}}{2(2)}\\x=\frac{4\pm\sqrt{16-72}}{4}\\x=\frac{4\pm\sqrt{-56}}{4}\\x=\frac{4\pm\sqrt{-(2*2*2*7)}}{4}\\x=\frac{4\pm\sqrt{-(2^2*2*7)}}{4}\\x=\frac{4\pm\sqrt{2^2}\sqrt{-14}}{4}\\We\,\,know\,\,\sqrt{-1}=i\,\,\\x=\frac{4\pm2\sqrt{14}i}{4}\\Dividing\,\,by\,\,4\,\,\\x= 1\pm\frac{\sqrt{14}i}{2} \\So,\\x=1+\frac{\sqrt{14}i}{2} \,\,and\,\, x=1-\frac{\sqrt{14}i}{2}[/tex]

So, one of the root is [tex]x=1+\frac{\sqrt{14}i}{2}[/tex]

So, Option D is correct.

Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Match the circle equations in general form with their corresponding equations in standard form.

Answers

Answer:

# x² + y² - 4x + 12y - 20 = 0 ⇒ (x - 2)² + (y + 6)² = 60

# 3x² + 3y² + 12x + 18y - 15 = 0 ⇒ (x + 2)² + (y + 3)² = 18

# 2x² + 2y² - 24x - 16y - 8 = 0 ⇒ (x - 6)² + (y - 4)² = 56

# x² + y² + 2x - 12y - 9 = 0 ⇒ (x + 1)² + (y - 6)² = 46

Step-by-step explanation:

* Lets study the problem to solve it

- Use the terms of x and y in the general form to find the standard form

∵ x² + y² - 4x + 12y - 20 = 0

- Use the term x term

∵ -4x ÷ 2 = -2x ⇒ x × -2

∴ (x - 2)²

- Use the term y term

∵ 12y ÷ 2 = 6y ⇒ y × 6

∴ (y + 6)²

∵ (-2)² + (6)² + 20 = 4 + 36 + 20 = 60

∴ x² + y² - 4x + 12y - 20 = 0 ⇒ (x - 2)² + (y + 6)² = 60

∵ x² + y² + 6x - 8y + 10 = 0

- Use the term x term

∵ 6x ÷ 2 = 3x ⇒ x × 3

∴ (x + 3)²

- Use the term y term

∵ -8y ÷ 2 = -4y ⇒ y × -4

∴ (y - 4)²

∵ (3)² + (-4)² - 10 = 9 + 16 - 10 = 5

∴ x² + y² + 6x - 8y + 10 = 0 ⇒ (x + 3)² + (y - 4)² = 5 ⇒ not in answer

∵ 3x² + 3y² + 12x + 18y - 15 = 0 ⇒ divide all terms by 3

∴ x² + y² + 4x + 6y - 5 = 0

- Use the term x term

∵ 4x ÷ 2 = 2x ⇒ x × 2

∴ (x + 2)²

- Use the term y term

∵ 6y ÷ 2 = 3y ⇒ y × 3

∴ (y + 3)²

∵ (2)² + (3)² + 5 = 4 + 9 + 5 = 18

∴ 3x² + 3y² + 12x + 18y - 15 = 0 ⇒ (x + 2)² + (y + 3)² = 18

∵ 5x² + 5y² - 10x + 20y - 30 = 0 ⇒ divide both sides by 5

∴ x² + y² - 2x + 4y - 6 = 0

- Use the term x term

∵ -2x ÷ 2 = -x ⇒ x × -1

∴ (x - 1)²

- Use the term y term

∵ 4y ÷ 2 = 2y ⇒ y × 2

∴ (y + 2)²

∵ (-1)² + (2)² + 6 = 1 + 4 + 6 = 11

∴ 5x² + 5y² - 10x + 20y - 30 = 0 ⇒ (x - 1)² + (y + 2)² = 11 ⇒ not in answer

∵ 2x² + 2y² - 24x - 16y - 8 = 0 ⇒ divide both sides by 2

∴ x² + y² - 12x - 8y - 4 = 0

- Use the term x term

∵ -12x ÷ 2 = -6x ⇒ x × -6

∴ (x - 6)²

- Use the term y term

∵ -8y ÷ 2 = -4y ⇒ y × -4

∴ (y - 4)²

∵ (-6)² + (-4)² + 4 = 36 + 16 + 4 = 56

∴ 2x² + 2y² - 24x - 16y - 8 = 0 ⇒ (x - 6)² + (y - 4)² = 56

∵ x² + y² + 2x - 12y - 9 = 0

- Use the term x term

∵ 2x ÷ 2 = x ⇒ x × 1

∴ (x + 1)²

- Use the term y term

∵ -12y ÷ 2 = -6y ⇒ y × -6

∴ (y - 6)²

∵ (1)² + (-6)² + 9 = 1 + 36 + 9 = 46

∴ x² + y² + 2x - 12y - 9 = 0 ⇒ (x + 1)² + (y - 6)² = 46

If the first term of the series is 30 and the 14th term is 95, what is the sum of all the terms of the series?

A. 813
B. 423
C. 455
D. 875

Answers

Answer:

D)  [tex]S_{14} = 875[/tex].

Step-by-step explanation:

Given  : If the first term of the series is 30 and the 14th term is 95,

To find : what is the sum of all the terms of the series.

Solution : We have given

First term = 30 .

14 th term = 95.

Sum of all term = [tex]S_{n} =\frac{n(first\ term +\ last\ term)}{2}[/tex].

Here, n = 14.

 [tex]S_{14} =\frac{14(30 +95)}{2}[/tex].

 [tex]S_{14} =\frac{14(125)}{2}[/tex].

 [tex]S_{14} =\frac{1750}{2}[/tex].

 [tex]S_{14} = 875[/tex].

Therefore, D)  [tex]S_{14} = 875[/tex].

Answer:

The sum of all the terms in series is 875.

Step-by-step explanation:

Given : If the first term of the series is 30 and the 14th term is 95,

To find : What is the sum of all the terms of the series?            

Solution :

The first term of the  series is 30 i.e. a=30

The 14th term of series is 95 i.e. [tex]a_{14}=95[/tex]

We know that in arithmetic series the 14th term is defined as

[tex]a_{14}=a+13d[/tex]

Substitute the value of a,

[tex]95=30+13d[/tex]

[tex]95-30=13d[/tex]

[tex]65=13d[/tex]

[tex]d=\frac{65}{13}[/tex]

[tex]d=5[/tex]

The common difference is 5.

The sum of the series is given by,

[tex]S_{n}=\frac{n}{2}[2a+(n-1)d][/tex]

[tex]S_{14}=\frac{14}{2}[2(30)+(14-1)5][/tex]

[tex]S_{14}=7[60+(13)5][/tex]

[tex]S_{14}=7[60+65][/tex]

[tex]S_{14}=7[125][/tex]

[tex]S_{14}=875[/tex]

Therefore, The sum of all the terms in series is 875.

Find an equation for the nth Term of a geometric sequence where the second and fifth terms or -8 and 512, respectively

Answers

Answer:

32

Step-by-step explanation:

Answer:

Tn = -4^n/2

Step-by-step explanation:

The formula for nth tern of a geometric sequence is given as:

Tn = ar^n-1 where;

a is the first term

r is the common ratio

n is the number of terms

Since we are looking for the nth term if the geometric sequence, we will write our answer as a function if 'n'.

Given the second and fifth terms to be -8 and 512, respectively, this can be interpreted as;

T2 = ar^2-1 = -8

T5 = ar^5-1 = 512

From the equations above, we have;

ar = -8... (1)

ar⁴ = 512

Dividing both equation, we have;

ar⁴/ar = -512/8

r³ = -64

r = -4

Substituting r = -4 into equation 1, we have;

a(-4) = -8

-4a = -8

a = 2

Since nth term Tn = ar^n-1

Substituting the value of a and r into the equation will give;

Tn = 2(-4)^n-1

2(-4^n × -4^-1)

2(-4^n × -1/4)

= -4^n/2

Let me know the answer plz

Answers

Answer:

J

Step-by-step explanation:

Find the common ratio r of the geometric sequence then multiply a term by r to obtain the next term

r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{6}{-36}[/tex] = - [tex]\frac{1}{6}[/tex]

The next 3 terms are

[tex]\frac{1}{6}[/tex] × - [tex]\frac{1}{6}[/tex] = - [tex]\frac{1}{36}[/tex]

- [tex]\frac{1}{36}[/tex] × - [tex]\frac{1}{6}[/tex] = [tex]\frac{1}{216}[/tex]

[tex]\frac{1}{216}[/tex] × - [tex]\frac{1}{6}[/tex] = - [tex]\frac{1}{1296}[/tex]

Answer:

J. [tex]-\frac{1}{36}[/tex], [tex]\frac{1}{216}[/tex], [tex]-\frac{1}{1296}[/tex]

Step-by-step explanation:

We are given the following geometric sequence and we are to find its 8th term:

[tex]-36, 6, -1, \frac{1}{6},...[/tex]

Here [tex]a_1=-36[/tex] and common ratio [tex](r) = \frac{-1}{6}=\frac{-1}{6}[/tex].

The formula we will use to find the next three terms is:

nth term = [tex]a_1 \times r^{(n-1)}[/tex]

5th term = [tex]-36 \times \frac{-1}{6}^{(5-1)}[/tex]  = [tex]-\frac{1}{36}[/tex]

6th term = [tex]-36 \times \frac{-1}{6}^{(6-1)}[/tex]  = [tex]\frac{1}{216}[/tex]

7th term = [tex]-36 \times \frac{-1}{6}^{(7-1)}[/tex]  = [tex]-\frac{1}{1296}[/tex]

There is a 90% chance of rain tomorrow and a 30% chance that the baseball game is postpone. What is the probability it will rain tomorrow and the baseball game is postponed.

Answers

Hello! :)

The answer is probably from changing first to decimals by dividing by 100: 90 and 30 become .9 and .3.

Then, multiply the two: .9 x .3 = .27

Finally, you multiply .27 by 100 = 27

Add the percentage sign: 27%

So there is a 27% chance that it will rain and the baseball game is postponed.

Very unlikely, I know. ;D

Hope this helped and I hope I answered in time!

Good luck!

~ Destiny ^_^

The probability it will rain tomorrow and the baseball game is postponed is 0.93 .

What is probability ?

A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.

According to classical definition of probability, a random experiment consists of a set of possible outcomes and each set of possible outcomes is equally likely to occur in the course of the event.

How to calculate the given probability ?

It is given that there is a 90% chance of rain tomorrow and a 30% chance that the baseball game is postpone.

Let A be the probability that there is a chance of rain tomorrow and B be the probability that the baseball game is postpone.

P(A) = 90% = 0.9 and P(B) = 30% = 0.3 and P(A∩B) = (0.9*0.3) = 0.27 .

The probability it will rain tomorrow and the baseball game is postponed is given by P(A∪B) .

By formula,

⇒ P(A∪B) = P(A) + P(B) - P(A∩B)

⇒ P(A∪B) = 0.9 + 0.3 - 0.27

∴  P(A∪B) = 0.93 .

Therefore, the probability it will rain tomorrow and the baseball game is postponed is 0.93 .

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Jay had to paint part of the outside of his house he spent 7 hours painting one side and 12 hours painting another how long did it take him to paint both sides

Answers

Final answer:

Jay spent 19 hours painting both parts of his house, which is obtained by adding the time he spent painting each side: 7 hours and 12 hours.

Explanation:

The question is asking about the total time Jay spent painting two sides of his house. We know that he spent 7 hours painting one side and 12 hours painting another side. To find the total time spent, we simply need to add the two times together. So, 7 hours + 12 hours equals 19 hours. Therefore, Jay spent 19 hours in total painting both parts of his house.

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11 cm
63°
9 cm
What is the area of this triangle?

Enter your answer as a decimal in the box
Round only your final answer to the nearest
tenth.

Answers

The correct answer is 44.1 [tex]cm^{2}[/tex]. I took the test.

Bill and Lisa are surveying their classmates about their summer reading. Their questions are given below:

Bill: How many books did you read this summer?
Lisa: Which book was first recommended to be read by the book club during the summer break?

Who wrote a statistical question and why?

Bill, because there will be variability in the responses collected

Lisa, because there can be only one answer to the question

Bill, because every student will give the same answer

Lisa, because there can be many answers to the question

Answers

Bill is the one who wrote this statistical question so there will be there will be variability in the responses collected.

Bill, because there will be variability in the responses collected

which values are within the domain of the function? check all that apply

Answers

Answer:

-6 -4 -2 4

Step-by-step explanation:

A B C F

Answer:

A. B. C. F.

Step-by-step explanation:

What is the midpoint of the x intercepts of f(x)=(x-2)(x-4

Answers

The answer will be 3 because you have to take the opposite for number for (x-2)(x-4) and your x-intercept will be 2,4 and the middle of 2 an 4 is 3

Answer:

A. (0,0)

Step-by-step explanation:

both lines run through (4,-4)

they meet at 0 on the Y axis

so the answer is (0,0)

Type the correct answer in the box. If necessary, use / for the fraction bar. A basket contains 14 white eggs, 15 brown eggs, and 11 lemons. Taylor is in a hurry to make breakfast and picks something from the basket at random. The exact probability that Taylor picks an egg from the basket is .

Answers

Answer:

29/40

Step-by-step explanation:

A basket contains 14 white eggs, 15 brown eggs, and 11 lemons. The exact probability that Taylor picks an egg from the basket is;

(14+15)/(14+15+11) = 29/40

Answer:

The exact probability that Taylor picks an egg from the basket is 0.725

Step-by-step explanation:

A basket contains 14 white eggs, 15 brown eggs and 11 lemons.

Total number of items in the basket [tex]=14+15+11= 40[/tex]

Total number of eggs in the basket [tex]=14+15= 29[/tex]

Taylor picks one item at random from the basket.

So, the probability that Taylor picks an egg [tex]=\frac{total\ number\ of\ eggs}{total\ number\ of\ items}=\frac{29}{40}=0.725[/tex]

Match the term with the definition

Answers

Answer:

Plane: C) A flat surface that extends infinitively and has no depth; it has length and width

Perpendicular Lines: B) Two lines that intersect at 90° angles

Parallel Lines: E) Two lines that lie within the same plane and never intersect

Circle: D) A set of all points in a plane that are given distance from a plane

Angle: A) A figure consisting of two rays with a common endpoint

I hope this helps

this is 100% correct

plz mark me brainliest

The model a = 0.25t + 29 represents the median age a of females in the United States as a function of time t (in years since 1970).

a. Predict the median age of females in 2007 to the nearest tenth.
2007 is
years after 1970, so a = 0.25( ) + 29 =

b. Predict the median age of females in 2018 to the nearest tenth.
2018 is years after 1970, so a = 0.25( ) + 29 =

Answers

Answer:

a. 38.3

b. 41.0

Step-by-step explanation:

We have been given the linear model;

a = 0.25t + 29

where a represents the median age of females in the United States and t the number of years since 1970

a.

We are required to predict the median age of females in 2007. The first step is to determine the number of years from 1970 to 2007 by finding the difference;

2007 - 1970 = 37

2007 is  thus 37 years after 1970.

The next step is to substitute t = 37 in the given linear model;

a = 0.25( 37) + 29 = 38.25

b.

We are required to predict the median age of females in 2018. The first step is to determine the number of years from 1970 to 2018 by finding the difference;

2018 - 1970 = 48

2018 is thus 48 years after 1970

The next step is to substitute t = 48 in the given linear model;

a = 0.25( 48) + 29 = 41

FIND AREA ASAP PLEASE

Answers

Answer:

[tex]\large\boxed{A=(223.3+49\pi)m^2}[/tex]

Step-by-step explanation:

(look at the picture)

We have:

two halves of circle (whole circle) with radius r = 7m;

the suqare wih length side a = 14m;

the triangle with base b = 14m and hight h = 3.9m.

The formula of an area of a circle:

[tex]A_1=\pi r^2[/tex]

Substitute:

[tex]A_1=\pi(7^2)=49\pi\ m^2[/tex]

The formula of an area of a square:

[tex]A_2=a^2[/tex]

Substitute:

[tex]A_2=14^2=196\ m^2[/tex]

The formula of an area of a triangle:

[tex]A_3=\dfrac{bh}{2}[/tex]

Substitute:

[tex]A_3=\dfrac{(14)(3.9)}{2}=(7)(3.9)=27.3\ m^2[/tex]

The area of a figure:

[tex]A=A_1+A_2+A_3\\\\A=49\pi+196+27.3=223.3+49\pi[/tex]

A:
Calculate the length of CE

B:
Calculate the length of DE

C:
The area of a triangle ABD is 36cm

Calculate the area of the quadrilateral BDEC

Answers

Step-by-step explanation:

it is solved directly by using the formula

Final answer:

To calculate the length of CE, use the properties of similar triangles. Use the same proportion to calculate the length of DE. To find the area of the quadrilateral BDEC, calculate the area of the triangle CDE and subtract it from the area of ABCD.

Explanation:

To calculate the length of CE, we need to use the properties of similar triangles. Since ABC and AED are similar, we can set up the proportion AB/AC = AD/AE. We know that AB = 5cm and AC = 10cm, and we need to solve for AE. Rearranging the proportion, we get AE = AD * AC / AB. Plugging in the values, AE = 6cm.

To calculate the length of DE, we can use the same proportion from above, but this time solving for DE. Rearranging the proportion, we get DE = AD * AC / AB. Plugging in the values, DE = 3cm.

The area of triangle ABD is given as 36cm. To calculate the area of the quadrilateral BDEC, we need to find the area of the triangle CDE and subtract it from the area of the quadrilateral ABCD. Since triangles CDE and ABC share the same height, we can use the ratios of their bases to calculate the area of CDE. The ratio of CE to CB is 6/10, so the ratio of the areas of CDE to ABC is (6/10)^2 = 0.36. Therefore, the area of CDE is 0.36 times the area of ABC, or 0.36 * 36cm = 12.96cm.

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In the figure, a∥b and m∠3 = 34°.

What is the m∠7 ?

Enter your answer in the box.

Answers

Answer:

∠7 = 34°

Step-by-step explanation:

Since a and b are parallel lines then

∠3 and ∠7 are corresponding angles and congruent, so

∠7 = ∠3 = 34°

Answer:

34 degrees

Step-by-step explanation:

The table below shows the number of tickets sold, t, at a high school basketball game, and the amount of money collected, m.

Tickets Sold (t) Money Collected (m)
25 $62.50
35 $87.50
40 $100

Which equation will calculate the amount of money collected after t tickets are sold?

Answers

m = t2.5

So money equals to tickets sold*2.5

2.5 is each tickets price

If you ask how I found;

$100 / 40 tickets = $2.5

Use 3.14 for and round to the nearest tenth. A circle has a radius of 6 inches. What is its area

Answers

Answer:

113.0 inches per square

Step-by-step explanation:

Given

r=6 inches

The formula for finding the area of a circle is:

A= πr^2

Here, A denotes the area and r denotes the radius whereas the value of π is 22/7 or 3.14.

As in the question it is directed to use 3.14 for the value of π  

So,

A=3.14*(6)^2

=3.14*36

=113.04 inches^2

Rounding off to the nearest 10

A=113.0 inches^2

So the area of given circle is 113.0 inches per square ..  

Beth said that g(x)=f(x)=x²-12 is a horizontal translation of f(x)=x² . Find and fix the errors and write the correct equation for a horizontal translation.

Answers

Final answer:

To perform a horizontal translation on a function, replace x with x - h in the function

Explanation:

To perform a horizontal translation on a function, we need to replace x with x - h in the function where h is the amount of translation. In the given case, the correct equation for a horizontal translation would be g(x) = f(x - h) = (x - h)² - 12, where h represents the amount of horizontal translation.

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Two architectural models are pyramids with bases of equal area. The smaller model has a height of 10 centimeters, and the larger model has a height of 30 centimeters. How many times greater than the smaller model is the larger model’s volume?

Answers

Answer:

The larger model’s volume is 3 times greater than the volume of the smaller model

Step-by-step explanation:

we know that

The volume of a pyramid is equal to

[tex]V=\frac{1}{3}Bh[/tex]

where

B is the area of the base of pyramid

h is the height of the pyramid

Find the volume of the smaller model

we have

[tex]h=10\ cm[/tex]

substitute

[tex]V=\frac{1}{3}B(10)[/tex]

[tex]V=\frac{10}{3}B\ cm^{3}[/tex]

Find the volume of the larger model

we have

[tex]h=30\ cm[/tex]

substitute

[tex]V=\frac{1}{3}B(30)[/tex]

[tex]V=\frac{30}{3}B=10B\ cm^{3}[/tex]

To find how many times greater than the smaller model is the larger model’s volume, divide the volume of the larger model by the volume of the smaller model

so

[tex]10B/(\frac{10}{3}B)=3[/tex]

The larger model’s volume is 3 times greater than the volume of the smaller model

Choose the slope-intercept form of 3x + 2y = 5.

Answers

Answer:

[tex]y=\frac{-3}{2}x +\frac{5}{2} \\or \\y=\frac{5}{2} -\frac{3}{2} x[/tex]

Step-by-step explanation:

slope-intercept form is: [tex]y= mx+b[/tex]

3x + 2y = 5.

rearrange

[tex]2y=5-3x\\y=\frac{5}{2} -\frac{3x}{2}[/tex]

Answer:

b on ed2020

IG: user_6232003

Step-by-step explanation:

Need the answers for letter “B”

Answers

Answer:

b=10

Step-by-step explanation:

A=1/2bh

The A and h are already given

100=1/2b(20)

So what times 20 equals 2 times as much as 100? Its 10

100=1/2(10)(20)

100=1/2(200)

100=100

So the answer is b=10

If you were to solve the following system by substitution, what would be the best variable to folve for and from what equation?

3x+6y=9
2x-10y=13

A) y in the first equation
B) y in the second equation
C) x in the second equation
D) x in the first equation

Answers

Answer:

D

Step-by-step explanation:

It's easiest to divide everything by 3.

The best variable to solve for is x in the first equation.

How to solve the equations 3x+6y=9 and 2x-10y=13 by substitution?

Let 3x+6y=9 be equation (1)

and 2x-10y=13 be equation (2)

2x-10y=13

10y = 2x - 13

y =[tex]\frac{2x - 13}{10}[/tex]  

substitute the value of y in equation (1)

3x+6y=9

3x + [tex]6(\frac{2x - 13}{10})[/tex] = 9

3x + [tex]3(\frac{2x - 13}{5})[/tex] = 9

[tex]\frac{15x + 6x - 39}{5}[/tex] = 9

21x - 39 = 45

21x = 84

x = [tex]\frac{84}{21}[/tex]

x = 4

Therefore, option D) x in the first equation is the correct answer

To learn more about  substitution method, refer :

https://brainly.com/question/22340165

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Consider the graph of function f below select the true statement

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Answer:

The answer is C, the graph has the y intercept of 2

Step-by-step explanation:

You can see from the graph that the line intercepts the y axis at 2

It wouldn't be the slope of 1/2 because that choice isn't negative and this is a decreasing/negative graph

Fill in the missing steps and justification

Answers

Step-by-step explanation:

1. 4x - 7 = -2x + 12, Given

2. 4x - 7 + 2x = -2x + 12 + 2x, Addition property of equality

3. 6x - 7 = 12, Simplification

4. 6x - 7 + 7 = 12 + 7, Addition property of equality

5. 6x = 19, Simplification

6. 6x/6 = 19/6, Division property of equality

7. x = 19/6, Simplification

Answer:

The steps are :

1. [tex]4x-7=-2x+12[/tex] - This is Given

2. [tex]4x-7+2x=-2x+12+2x[/tex] - Here, addition property of equality is used.

3. [tex]6x-7=12[/tex] - This step is simplification as both the LHS and RHS are being calculated and simplified.

4. [tex]6x-7+ 7=12+7[/tex] - Here, again addition property of equality is applied.

5. [tex]6x =19[/tex] - This is simplification again.

6. [tex]\frac{6x}{6}=\frac{19}{6}[/tex] - Here the division property of equality is applied.

7. [tex]x=\frac{19}{6}[/tex] - This step is simplification.

A fraction reduces to 36. If its denominator is 6x^5, what it's its numerator?

Answers

Final answer:

To determine the numerator of a fraction that simplifies to 36 with a denominator of 6x^5, you solve the equation Numerator/6x^5 = 36 by multiplying both sides by 6x^5, resulting in a numerator of 216x^5.

Explanation:

To find the numerator of a fraction that reduces to 36 with a denominator of 6x^5, we set up an equation to represent the fraction in its simplest form.

We know that when we divide the numerator by the denominator, the result is 36. Therefore, the equation to solve is Numerator/6x^5 = 36.

Multiplying both sides of the equation by 6x^5 will isolate the numerator on one side.

The calculation becomes:

Numerator = 36 × 6x^5

Next, we carry out the multiplication to find:

Numerator = 216x^5

This means that the numerator of the original fraction is 216x^5.

i need help please and thank you

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My answers are in the picture above.

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