A triangle has sides of lengths 9,7, and 12. Is it a right triangle? Explain.
no: 92 + 7 + 122
O yes: 92 + 72 122
O no: 92 + 7 = 122
yes: 92 + 7 = 122

Answers

Answer 1
Answer: No, it is not a right triangle.

Explanation:
9^2 + 7^2 (?) 12^2

81 + 49 (?) 144

130 = 144

Since 12^2 = 144, and the square root of 130 is 11.4^2, it is not a right triangle.

Related Questions

Which of the following properties is always true for a parallelogram? *
Diagonals bisect each other.
Diagonals are perpendicular.
Diagonals are congruent.
Diagonals biscect opposite angles.

Answers

Answer:

Diagonals bisect each other

The answer is the first one.

what is the equation of the line that goes througtthe points (4,-1) and (2,3)?

Answers

Answer:

y = -2x + 7

Step-by-step explanation:

Answer:

Step-by-step explanation:

recall   the two formulas

y = mx - b            slope-intercept

y - y1 = m(x-x1)     point-slope

with these  we can get the equation .  we also need to find the slope  m

m =  y2-y1 / x2-x1

m = 3 - (-1) / 2-4

m = 3 + 1 / -2

m = 4 / -2

m = -2

now with the slope known,  plug in either point into the point-slope formula and work to the slope-intercept formula, I'll use (2,3)  as the point to plug in.

y - 3 = -2(x-2)

y - 3 = -2x +4

y = -2x + 7

there.. that's your answer

y = -2x + 7  

please help ASAP!!
Let ∠1, ∠2, and ∠3 have the following relationships.

Answers

Easy, the answer is 90. Angles 1 and 2 are right angles, and since angle 3 is a vertical angle, it must be equal to angle 1. So since angle 1 is 90 degrees, then angle 3 is 90 degrees. 90 + 90 - 90 = 90.

pls help :))))))))) uhhhhhhhhh​

Answers

The answers are 3 and -13

You need to plug 3 and -5 into x

By doing this, you get :

12 - 3^2       and

12 - (-5)^2

those expressions equal

12 - 9

12 - 25

So you get

3

-13

What is the height of a tree if a man standing 5 feet tall is 42 ft from the tree and sees the top of the tree at an angle of elevation of 32°?

Answers

Answer: [tex]31.24\ ft[/tex]

Step-by-step explanation:

Given

The height of a man is 5 ft

Distance between man and tree is 42 ft

the angle of elevation is [tex]32^{\circ}[/tex]

Suppose h is the height of the tree

[tex]\Rightarrow \tan 32^{\circ}=\dfrac{h-5}{42}\\\\\Rightarrow h-5=26.24\\\Rightarrow h=31.24\ ft[/tex]

PLZ SOMEONE HELP ME

Answers

Where is the question I wanna help u PLZ

Hello can someone help me with this please

Answers

i’m guessing square = 2 and moon = 1. reason if heart is 2 then their probably counting
Green squares is 8 and the blue moon is 4

Tyras father is two more than three times as old as she
If Tyra is 9 years old how old is her father
29
27
17
18
32

Answers

29 because 9*3 is 27 +2 equals 29

Answer:

29

Step-by-step explanation:

9×3+2=29

Tyra's father is 29

Help me pleaseeeessss

Answers

Answer:

28/53

Step-by-step explanation:

Hey There!

So they want us to find the sine of angle S

well remember is sohcahtoa

S - sine

O - opposite

H - hypotenuse

meaning that

[tex]Sin=\frac{opposite}{hypotenuse}[/tex]

The opposite side of angle S is 28 and the hypotenuse is 53

so [tex]sinS=\frac{28}{53}[/tex]

t,when t= 10 pls help me on this math problem like fast pls

Answers

I dont see a problem here!!!!!!!!!


Can someone plz help me on this plz I beg u

Answers

Answer:

B because 20 cm multiplayer by 9cm equals 180cm

Answer is B: 180
If you’re solving for area you do length x width and if the base is the only area you solve for you multiply the length (20) by the width or height (9) to get 180cm

Pls pls help
Show work :)

Answers

9514 1404 393

Answer:

  31.243 units

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationships between sides and angles in a right triangle. Using the attached figure, it is convenient to find the length of BE as an intermediate step in the solution.

  Sin = Opposite/Hypotenuse

  sin(30°) = BE/100

  BE = 100·sin(30°)

Then ...

  Tan = Opposite/Adjacent

  tan(58°) = BE/x

  x = BE/tan(58°) = 100·sin(30°)/tan(58°)

  x ≈ 31.243 . . . . units

_____

Comment on the figure

The intermediate problem in creating the figure was to locate point D. That was accomplished by locating point C on a line at an angle of 58° CCW from the horizontal, using point B as a center. Then D is the intersection of BC with the x-axis. BE is drawn perpendicular to the x-axis.

0.6(2n-9) = 3.4-2 (3n-1)
solve the following equation only​

Answers

Answer:

n=1.5

Step-by-step explanation:

distribute: 1.2n-5.4= 3.4-2(3n-1)

Add numbers]: 1.2 n - 5.4= 5.4-6n

Move terms: 1.2n+6n- 5.4=5.4

Add like terms: 7.2n= 5.4+5.4

Divide both sides of equation by 7.2

Answer n= 1.5

She square was 10 ft by 10 ft. Suppose uses the same amount of fencing to enclose a circular area. What is the area of the​ circle? Use 3.14 for .

Answers

Answer:

127.41ft^2

Step-by-step explanation:

Given data

DImension of the square

10ft by 10ft

The perimeter of the square is

=10+10+10+10

=40ft

Hence the amount of the fencing of the circle is 40ft

That is the circumference is 40ft

C=2πr

solve for r

40=2*3.14*r

40=6.28r

r= 40/6.28

r=6.37 ft

Area= πr^2

Area= 3.14*6.37^2

Area= 3.14*40.5769

Area= 127.41ft^2

what expressions are equivalent to x+x+x+2

Answers

Answer:

3x+2

Step-by-step explanation:

There are 3xs amd a 2 in it, you cant combine both.

help me on homework. Explian the steps to get the answer

Answers

Answer:

$3.50

Step-by-step explanation:

1) 4 friends each bought a movie ticket = 7.50 * 4 = 30

2) subtract from total cost = 58 - 30 = 28

4) total number of candy boxes is 8 (because each friend bought 2 boxes so 4*2 is 8)  = 28/8 = 3.5

5) money so = $3 dollars and 50 cents

Express 18 and 24 as product of their prime factors ​

Answers

Answer:

6

cuz 6*3=18 and 6*4=24

Answer:

18: 2x9 3x6

24: 12x2 6x4  8x3

So 2

Step-by-step explanation:

Is that what you mean?

treinte + catorce = ??

Answers

Answer:

cuarenta y cuatro = 44

Step-by-step explanation:

treinta + catorce = cuarenta y cuatro

30 + 14 = 44

Qué tengas un lindo día

Have a great day

how many collection sites do we have

Answers

I bet you wanna know. As your SharePoint Intranet grows by leaps and bounds, you want to be in control and know how many sites/subsites you have in your environment.

Use the Triangle Inequality Property to determine whether a triangle can be formed with the given side lengths. 4 m, 8 m, 9 m *

Answers

Answer:

Therefore a triangle can be formed with side lengths of 4 m, 8 m, 9 m

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. There are different types of triangles such as scalene, isosceles, equilateral and so on.

The triangle inequality property states that the sum of any two sides of a triangle must be greater than the third side. If a, b and c are the sides of a triangle then:

a + b > c;   a + c > b;   b + c > a

Given a triangle with side length 4 m, 8 m, 9 m:

4m + 8m = 12m > 9m

4m + 9m = 13m > 8m

8m + 9m = 17m > 4m

Therefore a triangle can be formed with side lengths of 4 m, 8 m, 9 m.

please help i've been doing this ages

Answers

Sin is equal to opposite over hypotenuse
With this we know that
Opposite = sqrt(12)
Hypotenuse = 4
To find adjacent we need to use the Pythagorean theorem
12 + adj^2 = 4^2
We then solve for adj
12 + adj^2 =16
adj^2 =4
adj =2
Now that we have opposite, adjacent, and hypotenuse, we can find cos and tan
Cos is equal to adj/hypotenuse
Cos = 2/4 = 1/2
Tan is equal to opp/adj
Tan = sqrt(12)/2

2r – 1 ≥ ‐3(r + 7) ( pls show work)

Answers

Answer:

R ≥-4

Step-by-step explanation:

Substitute

2r-1>-3r-21

+3r

5r-1>-21

5r>-20

Divide 5

R>-4

A rectangle is shown.

What is the area of the rectangle?

Answers

Answer:

360

Step-by-step explanation:

15+15

12x15

ANSWER:

360

Step-by-step explanation:

15+15

12x15

I need help with this Geometry Question.

Answers

it’s 26

72*11=x*18
x=44

44-18=26

HELP ME PLEASE HELP!!!

Answers

Answer:

P(green) = 1/5

Step-by-step explanation:

P(yellow or blue on board 1) = 2/4 or 1/2

P(yellow or blue on board 2) = 2/5

2/5*2/4 = 4/20

Simplify.

1/5

um- answer and explanation please

Answers

Answer:

a. 11

b. 18

Step-by-step explanation:

8 + 3 = 11

8 + 8 + 2 = 18

Answer:

I do not know I think the person that did is on somthing

Step-by-step explanation:

7 ( 2x - 3 ) = 7
Show work and you will get Brainliest

Answers

Answer:

x=2

Step-by-step explanation:

Distribute the 7 across the 2x and 3:

[tex](7)(2x)-3(7)=7[/tex]

[tex]14x-21=7[/tex]

Isolate the x term by adding 21 on both sides:

[tex]14x=28[/tex]

Isolate x by dividing by 14 on both sides:

[tex]\frac{14x}{14}=\frac{28}{14}[/tex]

[tex]x=2[/tex]

If this helped, brainliest answer would be greatly appreciated!

Help me please!!!!!!!!!!!!

Answers

Answer:

3rd one is the right one .......

Answer:

9r^4−r^3s−8r^2s^2+5rs^3+37

Step-by-step explanation:

Distribute the Negative Sign:

=29r4−11r3s+5r2s2+19rs3+4+−1(20r4−10r3s+13r2s2+14rs3−33)

=29r4+−11r3s+5r2s2+19rs3+4+−1(20r4)+−1(−10r3s)+−1(13r2s2)+−1(14rs3)+(−1)(−33)

=29r4+−11r3s+5r2s2+19rs3+4+−20r4+10r3s+−13r2s2+−14rs3+33

Combine Like Terms:

=29r4+−11r3s+5r2s2+19rs3+4+−20r4+10r3s+−13r2s2+−14rs3+33

=(29r4+−20r4)+(−11r3s+10r3s)+(5r2s2+−13r2s2)+(19rs3+−14rs3)+(4+33)

=9r4+−r3s+−8r2s2+5rs3+37

Hope this helps! :)

Travis, the manager at a small music store, tracked one week of CD sales of different types of music. The bar graph shown here provides the number of CDs sold of each type of music. Travis predicts that the next CD sold will be pop music. Which statement justifies Travis's prediction? A) Every person bought a pop CD. B) More than half of all CD sales were pop CDs. C) People bought rock CDs just as much as pop CDs. D) People bought pop CDs more than any other type of CD.

Answers

aa aa a a aaaaaa a a aa a saa a

select all the statements that are true about the equation y=-2/3x+5

Answers

Answer:

The slope of the line is negative. The y-intercept is 5. The slope of the line is -2/3.

Step-by-step explanation:

With 2 given points on the line that are whole numbers, you can find the slope of the line with the equation [tex]m=\frac{y2-x2}{y1-x1}[/tex]. The answer will tell you whether it's negative or positive. For example, [tex]m=\frac{-2-1}{4-0} =\frac{-3}{4}[/tex]. The slope is negative for the example. The y-intercept would be the point with 0 as the x-value: (0, -5).

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