Offering brainliest if answered with explanation

Offering Brainliest If Answered With Explanation

Answers

Answer 1

Answer:

Step-by-step explanation:

we know that the 3 sides add up to the perimeter of 18cm. We can use this to find the length of the 3rd side, CA.  

AB + BC + CA = 18

7 + 3 + CA = 18

10 + CA = 18

CA = 8

The pythagorean theorem states that in a right triangle a2 + b2 = c2, where c is the length of the hypotenuse (the longest side opposite to the right angle) and a and b are the lengths of the other two sides.  

In this problem we can replace a with 7, the length of AB, b with 3, the length of BC, and c with 8, the length of CA.  

a2 + b2 = c2

72 + 32 = 82

49 + 9 = 64

58 = 64

Since the equation is not true, we can deduce that ABC is NOT a right triangle start, we know that the 3 sides add up to the perimeter of 18cm. We can use this to find the length of the 3rd side, CA.  

AB + BC + CA = 18

7 + 3 + CA = 18

10 + CA = 18

CA = 8

The pythagorean theorem states that in a right triangle a2 + b2 = c2, where c is the length of the hypotenuse (the longest side opposite to the right angle) and a and b are the lengths of the other two sides.  

In this problem we can replace a with 7, the length of AB, b with 3, the length of BC, and c with 8, the length of CA.  

a2 + b2 = c2

72 + 32 = 82

49 + 9 = 64

58 = 64

Since the equation is not true, we can deduce that ABC is NOT a right triangle start, we know that the 3 sides add up to the perimeter of 18cm. We can use this to find the length of the 3rd side, CA.  

AB + BC + CA = 18

7 + 3 + CA = 18

10 + CA = 18

CA = 8

The pythagorean theorem states that in a right triangle a2 + b2 = c2, where c is the length of the hypotenuse (the longest side opposite to the right angle) and a and b are the lengths of the other two sides.  

In this problem we can replace a with 7, the length of AB, b with 3, the length of BC, and c with 8, the length of CA.  

a2 + b2 = c2

72 + 32 = 82

49 + 9 = 64

58 = 64

Since the equation is not true, we can deduce that ABC is NOT a right triangle

Answer 2

Answer:

ABC is not a right triangle.

Step-by-step explanation:

The perimeter of a triangle is the sum of all its sides(easier to see if you draw it):

P = AB + BC + AC

We can substitute the values we have:

18 = 7 + 3 + AC

18 = 10 + AC

AC = 8

In a right triangle, the hypotenuse is always the largest side and is equal to the square root of the squares of the legs by the pythagorean theorem(a^2 + b^2 = c^2). Our largest side is 8, so we would set that as equal to the hypotenuse:

8^2 = 7^2 + 3^2

64 = 49 + 9

64 = 58

64 is not equal to 58, so triangle ABC is not a right triangle.


Related Questions

Please and thank you

Answers

Answer:

[tex]68^\circ[/tex]

Step-by-step explanation:

FGD is congruent to CGE because they are vertical angles.

Because AB is a line and AGC makes a right angle, then CGB is also a right angle. Thus [tex]\angle{EGB} = \angle{CGB}-\angle{CGE}[/tex], or [tex]\angle{GCE} = 68^\circ[/tex]

Don't stress anymore I'm here to help in online mathematics classes I have a doctorate degree in maths​

Answers

Then I'll definitely will ask you questions about maths :)

Please help me with my homework.

Here is the question. I hope you would help me, I really need answer asap. I need to pass it by 8:30. pls help me

Write 11 k-6 (2k+5)in expanded form and find the sum

Answers

Answer:

Option B

Step-by-step explanation:

Expression representing the series is,

[tex]\sum_{k=6}^{11}(2k+5)[/tex]

Here, k = Number of terms

By placing k = 6, 7, 8, 9, 10, 11 in the expression we can get the terms of the series.

For k = 6,

(2k + 5) = 2(6) + 5

            = 17

For k = 7,

(2k + 5) = 2(7) + 5

             = 19

For k = 8,

(2k + 5) = 2(8) + 5

            = 21

For k = 9,

(2k + 5) = 2(9) + 5

            = 23

For k = 10,

0(2k + 5) = 2(10) + 5

            = 25

For k = 11,

(2k + 5) = 2(11) + 5

            = 27

Therefore, expanded form will be,

17, 19, 21, 23, 25, 27

There, is a common difference in each successive to previous term,

d = 19 - 17

d = 2

Number of terms 'n' = 6

First term = 17

Sum of an arithmetic sequence is given by,

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

Therefore, sum of the given sequence will be,

[tex]S=\frac{6}{2}[2(17)+(6-1)2][/tex]

   = 3(34 + 10)

S = 132

Option B will be the correct option.

A map scale reads: 2 inches = 25 miles. Which distance does 6 inches represent

Answers

Answer:

the other side

Step-by-step explanation:

Answer:

75 miles

Step-by-step explanation:

2 * 3= 6

25 * 3= 75

onvert the unit of weight. Enter your answer in the box.

3/4 lb =
oz

Answers

Answer:

3/4 ib = 12 oz

Step-by-step explanation:

Students were polled regarding their favorite sport. The results are shown in the bar graph. Create a circle graph from the data in the bar graph.

Answers

Step-by-step explanation:

basketball = 40 %

football = 30 %

baseball = 20 %

soccer = 10 %

The sample space of picking a 2
character password using the letters Y, P, GR,
B, O, where double letters are not allowed is
shown. Your teacher asks the class to find the
probability of choosing a password with
one Y and one P. Carlos incorrectly says that
the probability is 15. Find the correct probability
then decide which error Carlos might have
made

Answers

Answer:

[tex]Pr = \frac{1}{15}[/tex]

Step-by-step explanation:

Given

See attachment for sample space

Required

[tex]P(1\ Y\ and\ 1\ P)[/tex]

From the attached sample space, we have:

[tex]n(S) =30[/tex] ---- total outcomes

[tex]n(PY) = 2[/tex] --- outcomes with 1 Y and 1 P = 2 i.e. (P,Y) and (Y,P)

So, the required probability is:

[tex]Pr = \frac{n(PY)}{n(S)}[/tex]

[tex]Pr = \frac{2}{30}[/tex]

[tex]Pr = \frac{1}{15}[/tex]

The error is that; Carlos omitted the numerator

A.Solve for x. Then, using that information, find the measure of
B.Solve for y. Then, using that information, find the measure of FE and AB.

Answers

Answer:

See answers below

Step-by-step explanation:

Since both trinagles asre similar hence the ratio of the similar sides are equal.

From both triangles;

y + 7 = 3y - 7

y - 3y = -7-7

-2y = -14

y = 14/2

y = 7

FE = 3y - 17

FE = 3(7) - 17

FE = 21 - 17

FE = 4

AB = y'+7

AB = 7 + 7

AB = 14

Similarly

3x+20 = 5x - 80

3x -5x = -80-20

-2x = -100

x = 100/2

x = 50

<A = 3x + 20

<A = 3(50) + 20

<A = 150 + 20

<A = 170degrees

Hence x= 50 and y = 7

Helpppppppp me plzzzzzzz

Answers

Answer:

90 seconds

Step-by-step explanation:

To find the time it takes to take a certain amount of steps, divide the given rate by the time.

3/2 = 1.5

This means she takes 1.5 steps every second. Now, we can multiply this rate by 60 to find how far she will go in that time.

1.5 · 60 = 90

Bethany takes 90 steps in 60 seconds.

I hope this helps ^^ Good luck

Find the area of the circle use 3.14 for pie d=6ft

Answers

Answer:

28.26 ft.²

Step-by-step explanation:

Mathematics: Explain/formula.

To find the area of a circle, multiply the radius by itself twice, then multiply the product by pi.

[tex]\pi r^2(3.14*radius*radius)[/tex]

[tex]\pi =pi[/tex]

Mathematics: Solve.

Here, the diameter is 6 ft.

To find the radius, divide the diameter by 2.

[tex]6/2=3[/tex]

[tex]radius=3[/tex]

Now, we can plug the numbers into the formula.

[tex]\pi 3^2(3.14*3*3)=28.26[/tex]

Mathematics: Conclude.

Therefore, the area of this circle is 28.26 ft.²

the area of the given circle will be 28.27 ft².

What is Area?

The area is the entire amount of space occupied by a flat (2-D) surface or an object's form. On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a form on paper is the area that it occupies.

Given, a circle that has a diameter of 6 ft,

Since, Radius = diameter/2

Thus,

Radius = 6/ 2

Radius = 3ft

From the formula of the area of the circle:

Area = pi* radius *radius

In our case,

Area = pi * 3 * 3

Area = 28.274

Therefore, the area of the given circle will be 28.27 ft².

Learn more about Area here:

https://brainly.com/question/27683633

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How much would you need to deposit into an account that pays 6.5% interest compounded semiannually to have $10,000 after 7 years?

Answers

Answer:

6390.56

Step-by-step explanation:

[tex]AV=PV(1+\frac{i}{n})^{nt}\\10000=x(1+\frac{.065}{2})^{7*2}\\10000=1.564807232*x\\6390.53=x[/tex]

9514 1404 393

Answer:

  $6490.57

Step-by-step explanation:

The future value is given by the compound interest formula ...

  A = P(1 +r/n)^(nt)

Principal P earns annual rate r compounded n times per year for t years.

Filling in the given values, we have ...

  10000 = P(1 +0.065/2)^(2·7) = P(1.0325^14)

  P = 10000/1.0325^14 ≈ 6390.5635

You would need to deposit $6390.57 into the account to have $10,000 in 7 years.

_____

Additional comment

Using the rounded-down result of the computation will result in a value after 7 years of $9,999.99, not quite $10,000. Rounding the computed value up to $6390.57 ensures the account balance will actually be $10,000.00 after 7 years.

If the balance is rounded to the nearest penny each time interest is added, then the balance after 7 years will be exactly $10,000.00. If there is no intermediate rounding, the resulting balance will be $10,000.01.

Most of the time, the answer key doesn't pay attention to details like this. Your expected answer may be $6390.56, or $6391 if rounded to dollars.

A population of emperor penguins has a mean weight of 77 pounds with a standard deviation of 16 pounds. What would be the standard deviation of sample means taken from this population with a sample size of 50?

Answers

Answer:

2.263

Step-by-step explanation:

standard deviation of sample means = s/\sqrt{n}

Given

Standard deviation s = 16pounds

Sample size n = 50

Substituting

standard deviation of sample means = 16/\sqrt{50}

standard deviation of sample means = 16/7.071

standard deviation of sample means = 2.263

Hence the standard deviation of sample means taken from this population with a sample size of 50 is 2.263

Select the correct answer. What is the domain of the function represented by this graph? the graph of a quadratic function y = x^2 – 4 with a minimum value at the point (0,-4)

A. x ≥ 4
B. x ≤ 0
C. all real numbers
D. -2 ≤ x ≤ 2

Answers

Answer:

C. all real numbers

Step-by-step explanation:

D(y) = {x / x € R }

_____

Answer:

All real numbers :)

Step-by-step explanation:

Candice bought 2 dozen eggs 9 of the eggs were bad . what percentage of the eggs were good ​

Answers

Answer:

63%

Step-by-step explanation:

2 dozen eggs is 24

24-9=15

15/24=.625 but when you rounded .63

what is the volume of a sphere if the radius is 9?


ANSWER IN TERMS OF PI !!!

Answers

Volume of sphere =4/3 pi r^3
V(volume)=(3/4) pi r
Pi =3.14 or 22/7
R(r)= radius (9) in

In a nutshell :

The volume of a sphere is equal to 43 times Pi π times the radius cubed. Substitute the value of the radius r=9 into the formula to find the volume of the sphere. Pi π is approximately equal to 3.14 .

A plane can fly 1440 miles in the same time as it takes a car to go 400 miles. If the car travels 130 mph
slower than the plane, find the speed of the plane.
mph
PLEASE PLEASE HELP

Answers

Answer:

The speed will be "144 mph".

Step-by-step explanation:

Let the speed of the plane be "x mph".

then,

The car's speed be "x-130 mph".

According to the question,

⇒ [tex]\frac{1440}{x} =\frac{400}{x-130}[/tex]

By applying cross-multiplication, we get

⇒    [tex]1440(x-130)=400x[/tex]

⇒ [tex]1440x-187200=400x[/tex]

⇒    [tex]1440x-140x=187200[/tex]

⇒                [tex]1300x=187200[/tex]

⇒                       [tex]x=\frac{187200}{1300}[/tex]

⇒                          [tex]=144 \ mph[/tex]

PLEASE HELP ME
Arnold deposits $6,000 into a certificate of deposit that pays 8% interest compounded quarterly . How much interest does his account earn in the first 3 years?

Answers

Answer:

8

Step-by-step explanation:

Find the surface area of the regular pyramid.
13 in.
5
5 in.
4.3 in.
The surface area is
square inches.

Answers

The surface area of the regular pyramid whose diagram is good one above would be = 102.9 in²

How to calculate the surface area of a regular pyramid?

To calculate the surface area of a regular pyramid, the formula given below is used;

Surface area of pyramid = SA = A + 3(1/2bh) = A + 3/2bh,

Where A = area of triangle = ½bh

b = base = 5 in

h = slant height = 13. in

SA = ½× 2.5×4.3 + 3/2×5 ×13

= 5.375 + 97.5

= 102.9 in²

Learn more about area here:

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plss i need the rogth answer i will mark brainliest I BEG OYU PLSS

Answers

Answer:

521,400 meters squared

Step-by-step explanation:

With the 1cm = 100m scale

6.6 cm = 660m

7.9 cm = 790m

Area = 660 x 790 = 521,400 meters squared

Help with this, please!!!

Answers

Answer:

Its a Parallelogram

It has all four descriptions.

Linear Equation:
4x - 3y = 1
у
X

Answers

confused on what the question is?

Answer:

x (1/4,0) y (0,-1/3)

Step-by-step explanation:

x (1/4,0)

y (0,-1/3)

5 and 1/4 - 4 and 1/2​

Answers

This answer is 0.75 , hope this helps ❤️.

Step-by-step explanation:

answer: 3/4 or 0.75

=5 1/4 - 4 1/2

=21/4 - 9/2

= (21-9) / 4

=3/4  or 0.75

HELP Ill give brainlist

Answers

Answer:

I think the answer is a

Hi I'm bad at math the questions is -r - 20r = please help

Answers

Answer:

−21r

Step-by-step explanation:

Combine Like Terms:

=−r+−20r

=(−r+−20r)

=−21r

Answer:

=−21r

please click the crown button (brainliest) thanks!!

hope this helps!! <3

-21r. Hope this helps

which expression is equivalent to -1/4 (20z + 24)

Answers

Answer:

19,2049.12

Step-by-step explanation:

By

A party planner bought 30 meters of ribbon to make bows. She uses 20 centimeters of ribbon to make 1 bow. What is the total number of bows the party planner can make with 30 meters of ribbon?

A. 15

B. 150

C. 1,500

D. 15,000

Answers

Answer:

B. 150

Step-by-step explanation:

1 meter = 100 centimeters

since there is 30 meters x 100 centimeters = 3000 centimeters

then divde by 20 centimeters since that is the cost to make 1 bow so

3000 / 20 = 150.

So 150 bows in total.

I think it’s 150 I did the math and everything

I
Don’t understand this can someone answer it

Answers

Answer:

3x+88+x+36+2x-10=180 (being straight line)

6x+114=180

6x=180-114

x=66/6

x=11

Step-by-step explanation:

Answer:

this question is very simple

we know that

if A , O and B lie on a straight line segment

then

∡AOY+∡YOZ+∡ZOB=180°

so

3x+x+x=180-----> 5x=180--------> x=180/5--------> x=36°

the answer is

x=36°

.... please mark as brainliest

explain why a3*a2 dosnt equal a6... Plz I need help!​

Answers

Answer: a^3 · a^2 ≠ a^6 as the laws of exponents states that the multiplication rule for two exponents with the same bases equates to addition, so that a^3 · a^2 = a^3+2 = a^5.

write the percent as a decimal
1. 34%​

Answers

Answer:

 

Now we can see that our fraction is 2.9411764705882/100, which means that 1/34 as a percentage is 2.9412%.

Step-by-step explanation:

Select all the statements about rotations that are true

A- The shapes of the figure does not change.

B- The positions of the figure does not change.

C- The size of the figure does not change.

D- The orientation of the figure does not change.

E- The coordinates of the figure do not change.

Please help I will give 100 points

Answers

Answer:

a. true

b. false

c. false

d. true

e. false

Step-by-step explanation:

A. true, a shape is not warped by a rotation

b. false, the points on the figure will change

c. false, the size is not affected by a rotation

d. true, the orientation changes in a rotation

e. false, the coordinate points on the figure are altered

Answer:

A- The shapes of the figure does not change.

C- The size of the figure does not change.

D- The orientation of the figure does not change

Other Questions
Please help with this brother and sisters 60 POINTS DO NOT CHOOSE THE REQUIRED SCHOOL UNIFORMS PLSSIn this speech writing assignment, you will research a problem, devise a solution, and persuade people to join your cause. Your purpose is to persuade your class and community to change their actions and beliefs about the problem youve identified. You will choose one of the following topics to write about:vending machines in the school cafeteriarequired school uniformsthe use of technology in school, such as e-readers, phone apps, MP3 players.free extracurricular school activities, such as running clubs, game clubs, etc.After you have chosen your topic, choose a clear position either in support of or against your topic.Write a 500-word speech in support of your position on your chosen topic. Make sure that you are using at least ONE of the persuasive techniques (logos, pathos, ethos). Remember that your position should be based on facts, not opinions. If possible, deliver your speech to your classroom, teacher, or parents to practice the public speaking strategies outlined above. Select the correct answer.The image shows part of an architect's scale showing the 8-inch scale from left to right and the 4-inch scale from right to left. What does eachdivision on the 4-inch scale represent?11864644404240O A L of a footOB. 1 of a footOch of a footOD.1 footResetNext12:365/2012Sandra Kenny Mic...ntum. All rights reserved.Drafting Tools and write in point-slope form (-4,-3) m=-1 15 POINTS PLS FASTRead the following sentence.If the entire class wanted to take the same subway train, they would have to jam into a crowded compartment.Use context clues to find the correct definition of the multiple-meaning word jam as it is used in this sentence.to wedge betweento squeezeto blockto apply 1. How do humans use energy resources?2. Give an example of how energy transformations are involved in the3. Identify two sources of renewable energy.pls help In Dallas, Texas, 9 bats ate 45 grams of insects in one night. At this rate, how manygrams of insects could 36 bats eat in one night? Mrs. Murphy by balloons garlands paper lanterns and banners to decorate a school party she got three times as many bags of balloons as paper lanterns seven more garlands than paper lanterns and for banners she paid $5.25 for each banner $6.50 for each paper lantern five dollars for each bag of balloons and $3.50 for each garland how many of each kind of decoration did she purchase if she paid $145.50 please help HELP ME!! GET YOUR POINTS!! NO LINKS THOO Read the following passage:"Marie Tharp grew up in the 1930s, wanting to be a surveyor like her father. Although she helped him in his work, womenweren't welcome in the sciences, so she went to music school instead and waited for a chance. When colleges emptied of menduring World War II, she was allowed in to get a geology degree and then another in mathematics."She wanted to investigate the ocean depths, but women weren't allowed on research ships. So she waited again, this time ina basement office, for her male colleagues to send back data. Working slowly and precisely, she tumed those numbers into themost detailed map of the seafloor ever made."Marie wanted her colleagues to understand that her depictions of seafloor geography were powerful evidence for the theoryof continental drift, but they dismissed it as 'girl talk.' It took almost a decade for her work to be accepted. She'd wait manymore years to get full credit."Which of the answers below is the best description of the cultural context of the reading?Marie Tharp helped transform our understanding of the world during an era when women were first banned, then largelyignored, in the sciences.Marie Tharp was a scientist who needed help from male co-workers to get her work done.Marie Tharp was a woman of many interests, including music, geology, and map-making. She earned several degrees inthese fields.O Marie Tharp was a hard worker who made important scientific discoveries in the 1950s and 60s. PLEASE HELP I WILL GIVE BRAINLIEST Voy a enviarle a mi tia.Es su cumpleanos PLEASE ANSWERRWhich of the following is the independent variable for a controlled experimentinvestigating how waste production affects a certain person's ecologicalfootprint?A. Opinion the person has about environmental impactB. Measurement of the amount of waste producedC. Identification of the personD. Calculation of resulting ecological footprint 11.1 m3.5 m4 m4 m4 m How many fewer students voted for oranges than voted for apples or grapes combined? help asap! will give brainliest! A bakery sells cakes in the shape of hollow spheres. The larger diameter of each sphere is 6 cm. The thickness of each hollow sphere is 1 cm.What is the amount of cake in each hollow sphere? State your answer to the nearest tenth of a cubic centimeter.The bakery packages 10 of the cake hollow spheres into a box. If the density of the hollow spheres is 1.415 g/cm3, what is the total mass of cake in the box?Select the volume and total mass from the options below. What did the pope send to Martin luther? find the pH of 2.1 x 10-3 [HCI] That big lorry hit the new car.change to passive voice