Answers
ratio
leg:leg:hypo = x : x : x√2
hypo = 22√2 (x = 22)
so leg = 22
answer
22 units
Where,
a: side of the triangle.
h: hypotenuse.
We then have to clear the value of a:
a = sine (45) * h
Substituting:
a = sine (45) * (22 * root (2))
a = (root (2) / 2) * (22 * root (2))
a = 22
Answer:
22 (option 3)
Related Questions
you are starting your own small business in Albuquerque. you borrow $10,000 from a bank at 9% rate for 5 years find the interest you will pay on this loan
Answers
10,000(1+0.09.5) = 14,500
=$4,500 interest
I will have to pay $4500 interest for the loan I have taken to start a small business.
What is simple interest?We know simple interest (SI) is given by SI = (p×r×t)/100, where
p = principle, r = rate in percentage, and t = time in years.
Given, P = $10,000, r = 9% and t = 5.
∴ SI = (10000×9×5)/100.
SI = 100×45.
SI = 4500.
So, I need to pay $4500 for the loan.
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Complete the square to write y = 3x2 + 12x + 7 in vertex form, y = a(x - h)2 + k. y = 3(x2 + 4x) + 7 y = 3(x2 + 4x +4) + 7 -
Answers
Answer:
A. 12
B. 3
C. -2
D. -5
Step-by-step explanation:
Verified on edge, just finished it
The Vertex form is y= 3(x+ 2)² -5 and a= 3, h= -2, k= -12.
What is Vertex Form?The vertex form of a quadratic function is f(x) = a(x – h)² + k, where a, h, and k are constants.
Vertex form, one of the usual forms for quadratic functions, emphasises the coordinates of the vertex of the function's graph.
Given:
y = 3x² + 12x + 7
Now writing the equation in vertex form
y = 3x² + 12x + 7
y = 3x(x + 4) + 7
Adding and subtracting 12 on both side
y= 3(x²+ 4x) + 7 -12 + 12
y= 3(x² + 4x + 4) + 7- 12
y= 3(x+ 2)² -5
Now, Comparing it with y = a(x - h)² + k we get
a= 3
h= -2
and, k= -12
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what fractions are equivalent to 8 over 12
Answers
The ice rink sold 95 tickets for the afternoon skating session, for a total of $828. answer General admission tickets cost $10 each and youth tickets cost $8 each. How many general admission tickets and how many youth tickets were sold?
I think it is 34 general and 61 youth
Answers
yes, you are right
Which is a focus of the hyperbola shown? (0, −26) (0, −24) (0, 25) (0, 30) BRAINLIESTT
Answers
Answer:its (0 -26)
Step-by-step explanation:
THATS THE ANSWER NO NEED TO explain
Answer:
A (0,-26)
Step-by-step explanation:
Sierra sawed 10 1/2 inches off the end of a board. the remaining board was 37 1/2 inches long. how long was the boared that sierra started with? please explain answer
Answers
48 inches is your answer ;)
During each minute of a comedy show, Carlin laughs 555 times. Carlin watches 333 comedy shows every day, and each show is 404040 minutes long. How many times does Carlin laugh every day due to the comedy shows?
Answers
Answer: 600
Step-by-step explanation:
Given : The number of times Carlin laughs in each minute = 5
The number of comedy show Carlin watched = 3
The length of each comedy show = 40 minutes
Total minute she watched Comedy show will be :-
[tex]40\times3=120\text{ minutes}[/tex]
Then , the total number of times Carlin will be :-
[tex]120\times5=600[/tex]
Hence,Carlin laughs 600 times every day due to the comedy shows.
By connecting two non-intersecting vertices of a regular pentagon, the figure can be split into a triangle and a quadrilateral. Always Sometimes Never
Answers
A quadrilateral has four sides.
See attached figure.
If you cannot find another way of subdividing the pentagon, then you have found that the pentagon is always split into a triangle and a quad.
37.5 x 10(-6) in scientific notation?
Answers
Find a1 for the arithmetic series with s20 = 80 And d = 2
Answers
the formula of the arithmetic series is
Sn=n[2(a1) + (n - 1)d]/2
where
Sn=80
n=20
d=2
a1=?
then
80=20*[2*a1+19*2]/2----------------> 160=[40*a1+760]
160=[40*a1+760]----------> a1=(160-760)/40------------> a1=-15
the answer is
a1=-15
where:
[tex]S_{n} [/tex] is the sum of the arithmetic sequence
[tex]n[/tex] is the number of terms
[tex]d[/tex] is the difference
[tex]a_{1} [/tex] is the first term
From our problem we know that [tex]S_{n} =80[/tex], [tex]n=20[/tex], and [tex]d=2[/tex]. Lets replace those values in our formula to find [tex]a_{1} [/tex]:
[tex]80= \frac{20}{2} [2a_{1} +(20-1)2][/tex]
[tex]80=10(2a_{1} +38)[/tex]
[tex]80=20a_{1} +380[/tex]
[tex]20a_{1} =-300[/tex]
[tex]a_{1} = \frac{-300}{20} [/tex]
[tex]a_{1} =-15[/tex]
We can conclude that the first term [tex]a_{1} [/tex] of the arithmetic series is [tex]-15[/tex]
The total land area of the United stated is about 3483511 square miles more than the total land area of Tennessee, which is about 53927 square miles. Write and solve an equation to find the total land area of the United stayed.
Answers
Let us denote the total land area of Tennessee by [tex] T [/tex].
Now, It has been given to us that the total land area of Tennessee is about 53927 square miles.
Therefore, [tex] T=53927 [/tex]
It has also been given to us that the total land area of the United States is about 3483511 square miles more than the total land area of Tennessee.
Let us denote the total land area of the United States by [tex] U [/tex].
Now, if the total land area of the United States (denoted by [tex] U [/tex]) is 3483511 square miles more than the total land area of Tennessee (which is 53927 square miles and is denoted by [tex] T [/tex]), then that means that we have to add 3483511 square miles to the total land area of Tennessee to get the total land area of the United States. This can be written in the equation form as:
[tex] U=3483511+T=3483511+53927=3537438 [/tex]
Thus the total area of the United States is 3537438 square miles.
Final answer:
The total land area of the United States is calculated by adding the land area of Tennessee to the difference given in the question. The equation is US Area = 53,927 + 3,483,511. Solving this equation, the total land area of the United States is approximately 3,537,438 square miles.
Explanation:
To find the total land area of the United States, we can use the given information and set up an equation. The total land area of Tennessee is about 53,927 square miles. The question states that the total land area of the United States is about 3,483,511 square miles more than Tennessee's land area. We can express this relationship with the following equation:
Total land area of the United States = Land area of Tennessee + 3,483,511 square miles
US Area = 53,927 + 3,483,511
Solving for the total land area of the United States:
US Area = 3,537,438 square miles
Therefore, the total land area of the United States is approximately 3,537,438 square miles.
PLEASE HELP BABES!!
Heather is trying to decide what classes to take next year. She must take one of each and can choose from 3 math classes, 2 science classes, 4 history classes, and 3 English classes. How many different schedules can she have?
A) 4
B) 12
C) 48
D) 72
Answers
d)72 is the answer. It might also be c)48 but im not sure.
GIVEN circle P with arc AE = 53 , arc BA =68 and arc CB =72
match the following angles with their corresponding measurements
Answers
the sum of the internal angles of a triangle is 180°.
when the angles of arcs have been given(e.g: BA) that means from the centre of the circle to point B has been rotated by 53° to point A.
Next from point A to point E, the angle rotated is 68°
the addition of these 2 angles give the angle rotated from point B to point E,
that is angle no.7
m∠7 = 53° + 68° = 121°
consider ΔPBE,
PB and PE are radii therefore isosceles triangles
In isosceles triangles the angles opposite equal sides are equal
if the angle is x°, then there are 2 angles with values x each
x° +x° + 121° = 180°
2x° = 59°
x = 29.5°
therefore m∠3 = 29.5°
next connect PC and consider ΔPCB,
according to given information, C∠PB = 72°
as PC and PB are radii ΔPCB is an isosceles triangle, then the angles (y°) opposite radii are equal
2y° + 72° = 180°
y° = 54°
then consider ΔPCD, again an isosceles triangle
as a straight line has an angle of 180°
B∠PC + C∠PD = 180°
72° + C∠PD = 180°
C∠PD = 108°
as ΔPCD is an isosceles triangle, P∠CD and P∠DC are equal (take this angle as z°)
2z° + 108° = 180°
z° = 36°
B∠CD is a sum of y and z angles
therefore m∠8 = y + z
m∠8 = 54° + 36° = 90°
there is also a tangent line that cuts point D of the circle. this tangent cuts D and is perpendicular to the PD radius
this indicates that lines PD and HD are perpendicular to each other
hence, forms a right angle where it cuts each other.
therefore H∠DP / m∠4 = 90°
C∠DH /m∠5 is the difference between P∠DH and P∠DC
m∠5 = 90° - 36° = 54°
m∠1 and m∠6 together make a straight line therefore the sum of these 2 angles is 180°
by looking at the options of answers given the 2 angle values given that add up to 180° are 116.5° and 63.5°.
m∠1 is the acute angle therefore m∠1 = 63.5°
m∠6 is the obtuse angle therefore m∠6 = 116.5°
consider ΔDFB
D∠FB is 180° - m∠1 = 180° - °63.5 = 116.5°
D∠FB + F∠DB(w°) + D∠BF (m∠3)= 180°
116.5 + w° + 29.5° = 180°
w° = 34°
m∠2 = m∠4 + w°
= 90° + 34°
= 124°
finally all the answers are
m∠1= 63.5°
m∠2 = 124°
m∠3 = 29.5°
m∠4 = 90°
m∠5 = 54°
m∠6 = 116.5°
m∠7 = 121°
m∠8 = 90°
All the answers are
m∠1= 63.5°
m∠2 = 124°
m∠3 = 29.5°
m∠4 = 90°
m∠5 = 54°
m∠6 = 116.5°
m∠7 = 121°
m∠8 = 90°
The theory that is mainly used to find out the angles of the above diagram is that;
the sum of the internal angles of a triangle is 180°.
when the angles of arcs have been given(e.g: BA) that means from the centre of the circle to point B has been rotated by 53° to point A.
Next from point A to point E, the angle rotated is 68°
the addition of these 2 angles give the angle rotated from point B to point E,
that is angle no.7
m∠7 = 53° + 68° = 121°
consider ΔPBE,
PB and PE are radii therefore isosceles triangles
In isosceles triangles the angles opposite equal sides are equal
if the angle is x°, then there are 2 angles with values x each
x° +x° + 121° = 180°
2x° = 59°
x = 29.5°
therefore m∠3 = 29.5°
next connect PC and consider ΔPCB,
according to given information, C∠PB = 72°
as PC and PB are radii ΔPCB is an isosceles triangle, then the angles (y°) opposite radii are equal
2y° + 72° = 180°
y° = 54°
then consider ΔPCD, again an isosceles triangle
as a straight line has an angle of 180°
B∠PC + C∠PD = 180°
72° + C∠PD = 180°
C∠PD = 108°
as ΔPCD is an isosceles triangle, P∠CD and P∠DC are equal (take this angle as z°)
2z° + 108° = 180°
z° = 36°
B∠CD is a sum of y and z angles
therefore m∠8 = y + z
m∠8 = 54° + 36° = 90°
there is also a tangent line that cuts point D of the circle. this tangent cuts D and is perpendicular to the PD radius
this indicates that lines PD and HD are perpendicular to each other
hence, forms a right angle where it cuts each other.
therefore H∠DP / m∠4 = 90°
C∠DH /m∠5 is the difference between P∠DH and P∠DC
m∠5 = 90° - 36° = 54°
m∠1 and m∠6 together make a straight line therefore the sum of these 2 angles is 180°
by looking at the options of answers given the 2 angle values given that add up to 180° are 116.5° and 63.5°.
m∠1 is the acute angle therefore m∠1 = 63.5°
m∠6 is the obtuse angle therefore m∠6 = 116.5°
consider ΔDFB
D∠FB is 180° - m∠1 = 180° - °63.5 = 116.5°
D∠FB + F∠DB(w°) + D∠BF (m∠3)= 180°
116.5 + w° + 29.5° = 180°
w° = 34°
m∠2 = m∠4 + w°
= 90° + 34°
= 124°
finally all the answers are
m∠1= 63.5°
m∠2 = 124°
m∠3 = 29.5°
m∠4 = 90°
m∠5 = 54°
m∠6 = 116.5°
m∠7 = 121°
m∠8 = 90°
It took the race car 22 minutes to travel 114.4 kilometers. At what rate did the car travel?Use the formula r = d/t, where r is the rate, d is the distance, and t is the time. Round your answer to the nearest tenth.
Answers
T=22 minutes
R= 114.4 km /22 min
R= 5.2 km/min
If the asymptotes of a hyperbola are the x- and y-axes, it is known as a rectangular hyperbola?
Answers
Final answer:
A rectangular hyperbola is defined by the angle between its asymptotes being 90°, with its Equation represented as x'y' = a².
Explanation:
Rectangular Hyperbola: When the angle between the asymptotes of a hyperbola is 90°, it is called a rectangular hyperbola. In this case, b = a and the eccentricity is √2. The Equation to a rectangular hyperbola is x'y' = a².
you deposit 2800 in a savings account that earns 1% annual intrest compounded semiannually.Write a function that represents the balance after t years
Answers
Amount = Initial amount * ( 1 + (r/n) ) ^ (nt)
where r = interest rate per year, n = period per year
n = 2, r = 0.01
Answer: F(t) = 2,800 * [ 1 + (0.01/2) ] ^ 2t
The function which represent the given situation for Amount by compound interest is [tex]A = 2800 X 1.005^{2t}[/tex]
What is Compound Interest?Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on principal plus interest.
Here, P = $2800
I = 1 % compounded semiannually = 0.5 % = 0.005
Time = t years
n = 2t semi-years
We know that,
[tex]A = P(1+i)^n[/tex]
[tex]A = 2800 ( 1 + 0.005 )^{2t}[/tex]
[tex]A = 2800 X 1.005^{2t}[/tex]
Thus, The function which represent the given situation for Amount by compound interest is [tex]A = 2800 X 1.005^{2t}[/tex].
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If an object is dropped from a height of 55 feet, the function d=-16t^2+55 gives the height of the object after t seconds. Graph this function. Approximately how long does it take the object to reach the ground (d=0)
Answers
[tex]\bf \stackrel{d}{0}=-16t^2+55\implies 16t^2=55\implies t^2=\cfrac{55}{16}\implies t=\sqrt{\cfrac{55}{16}}[/tex]
that's when.
as far as its graph, is more or less like the picture below, now, notice that if we put the quadratic in "vertex form", it'd look like
[tex]\bf d=-16t^2+55\implies d=-16(t-\stackrel{h}{0})^2+\stackrel{k}{55}\qquad vertex~(h,k)[/tex]
so its vertex is at (0, 55), so just pick one point to the left of the vertex, and one to the right of the vertex, and draw it away
In the standard (x,y) coordinate plane below, the points ( 0,2), (8,2), (3,6), and (11,6) are the vertices of a parallelogram. What is the area, in square units, of the parallelogram
Answers
The area of the parallelogram is 32 square units.
What is a parallelogram?Parallelogram is a quadrilateral that has two pairs of parallel sides.
In a parallelogram, opposite sides and angles are equal.
The adjacent angles add up to 180 degrees.
We have,
First, we can plot the points on the coordinate plane to get a better visual understanding of the parallelogram:
| (3,6) (11,6)
| *-----------*
| / /
| / /
| / /
| / /
| *-----------*
| (0,2) (8,2)
|
Now,
We can see that the base of the parallelogram is the line segment connecting (0,2) and (8,2), which has a length of 8 units.
To find the height of the parallelogram, we can observe that the line segment connecting (0,2) and (3,6) is perpendicular to the base, and has a length of 4 units.
Therefore,
The height of the parallelogram is 4 units.
Now,
The area of a parallelogram is given by the formula:
Area = base x height
Plugging in the values we found, we get:
Area = 8 x 4
Area = 32
Therefore,
The area of the parallelogram is 32 square units.
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Express the complex number in trigonometric form.
-5i
A) 5(cos 270° + i sin 270°)
B) 5(cos 180° + i sin 180°)
C) 5(cos 90° + i sin 90°)
D) 5(cos 0° + i sin 0°)
Answers
It is in the form a+bi where a = 0 and b =-5
So the point (a,b) is (0,-5)
The distance from the origin to this point is 5 units, therefore r = 5. This is the magnitude.
The angle is 270 degrees as shown in the attached image. You start on the positive x axis and rotate until you reach the point (0,-5)
This is why the answer is choice A) 5(cos(270) + i*sin(270))
56. exercise. for natural numbers a and b, give a suitable definition for "least common multiple of a and b", denoted lcm(a, b). construct and compute some examples.
Answers
LCM(6, 9) = 6*9/3 = 18 . . . . . . . (2 [ 3 ) 3] = 18 . . . ( ) product = 6; [ ] product = 9
LCM(2,5) = 2*5/1 = 10 . . . . . . . . (2 [ 1 ) 5 ] = 10
LCM(27, 45) = 27*45/9 = 135 . . (3 [ 9 ) 5] = 135
_____
In the above LCM products, the number in [ ) brackets is the GCD.
what is the average of -10.25 and 125.75
Answers
125.75+(-10.25)=115.5
115.5/2= 57.75
the mean is 57.75
For each pair of numbers, tell: By what percent of the first number is the second number larger? By what percent of the second number is the first number smaller? 15 and 20
Answers
Reason: The second number (20) is larger than the first number (15) by 5 and 5 is 33.33% the first number.
.
The answer for the second question is 25%, also.
Reason: The first number (15) is smaller than the second number (20) by 5 and it is 25 percent of the second number.
:)
By using a rule of 3, we will see that:
The second number is 33.33% larger than the first one.The first number is 25% smaller than the second one.How to find the percentages?
In the first case, we want to know by what percent of the first number is the second larger.
Then the 100% will be taken as the first number, so we have the relation:
100% = 15
And the other number will represent a percentage X, so we write:
X = 20
By taking the quotient of these two equations, we get:
X/(100%) = 20/15
Solving this for X, we get:
X = (20/15)*100% = 133.33%
We can conclude that the second number is 33.33% larger than the first number.
For the second part, we take 20 as our 100%, and we do the same thing:
X = (15/20)*100% = 75%
Then 15 is (100% - 75% = 25%) 25% smaller than 20.
As you can see the percentages are different. Why does this happen? because in each case the 100% represents a different number.
Finally, we can conclude that:
The second number is 33.33% larger than the first one.The first number is 25% smaller than the second one.If you want to learn more about percentages, you can read:
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A: 2x + 8y = 5 B: x + 9y = 10 To solve this system of equations by elimination, what could you multiply equation B by if you want to add the equations together and have a resulting equation with only the y-variable (the x-variable is eliminated)?
Answers
A: 2x + 8y = 5
B: x + 9y = 10
B x (-2) : -2x - 18y = -20
A + B:
8y - 18y = 5 - 20
- 10y = -15
y = 1.5
To solve for x
B: x + 9y = 10
x + 9(1.5) = 10
x + 13.5 = 10
x = 10 - 13.5
x = -3.5
B: x + 9y = 10
You can multiply equation B by -2 to be able to eliminate the x variable in both equations when you add them together.
B) -2(x + 9y)= 10
-2x - 18y= -20
Add both equations together:
2x + 8y = 5
+(-2x - 18y= -20 )
the x variable is eliminated
-10y= -15
divide both sides by -10
y= -15/-10
y= 1 1/2
Solve for x:
x + 9y= 10
x + 9(1 1/2)= 10
x + 13.5= 10
x= -3.5
ANSWER: multiply equation B by -2
Hope this helps! :)
Which number completes the inequality? -5.13< ?< -4.8
Answers
Natasha had d dollars. She bought two ice creams which cost x dollars each. How much money does she have left?
Answers
122% in simplest form
Answers
122%
To write it in a simple numerical value, we must divide the given value by 100.
We have then:
[tex](122/100) [/tex]
Simplifying we have:
[tex]61/50 [/tex]
In decimal form we have:
1.22
Answer:
Two options:
1) as a decimal: 1.22
2) as a fraction: 61/50
Both answers are equivalent.
Answer: The simplest form of 122% is [tex]\frac{61}{50}[/tex] in fraction and [tex]1.22[/tex] in decimal.
Step-by-step explanation:
We know that to simplify percentage into fractions or decimals, we need to divide it by 100.
The percent value = 122%
Therefore , to simplify it into the simplest form we divide it by 100, we get
[tex]122\%=\frac{122}{100}=\frac{61}{50}[/tex]
In decimal , [tex]122\%=\frac{122}{100}=1.22[/tex]
Hence, the simplest form of 122% is [tex]\frac{61}{50}[/tex] in fraction and [tex]1.22[/tex] in decimal.
What are the solutions of the equation x4 + 95x2 – 500 = 0? Use factoring to solve.
Answers
set u=x^2, and substitute
u^2+95u-500=0
Since -5*100=-500, and -5+100=95, we factor equation as
(u-5)(u+100)=0
=> u=5 or u=-100
Back-substitute,
u=5 => x= ± √ 5
u=-100 => x= ± 10i (if you work with complex roots)
So
answer: the real roots of given equation are ± √ 5
the complext roots are: x= ± 10i
Using factorization, the factors of the given equation are; ±√5 and ±10i.
What is Factorization?In mathematics, factorization or factoring consists of writing a number or any mathematical item as a product of several factors, typically small or easier objects of the same.
we have been given the equation:
x⁴ + 95x² – 500 = 0
Factorizing the above equation,
x⁴ + 100x² - 5x² - 500 = 0
x²(x² + 100) - 5(x² + 100) = 0
(x² - 5)(x² + 100) = 0
Solving further:
x² = 5
x² = -100
x = ±√5
x = √-100
Factors : ±√5 and ±10i
Therefore, we know that the factors of the given equation are; ±√5 and ±10i.
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Sean divides 8 cups of granola into 1/4-cup servings. How many servings of granola does he have?
Answers
8 cups make x
x = 8*4
x = 32 servings
Choose the correct simplification of the expression (−2x + 4y)(3x − 7y). −6x2 − 2xy − 28y2 6x2 + 26xy − 28y2 −6x2 + 26xy + 28y2 −6x2 + 26xy − 28y2
Answers
Answer:
[tex] - 6 {x}^{2} + 26xy - 28 {y}^{2} [/tex]
Step-by-step explanation:
The given expresion is:
(−2x + 4y)(3x − 7y)
We expand using the distributive property: (a+b)(c+d)=a(c+d)+b(c+d)
We apply this property to get:
[tex]( - 2x + 4y)(3x - 7y) = - 2x \times(3x - 7y) + 4y(3x - 7y)[/tex]
We expand further to obtain:
[tex] - 6 {x}^{2} + 14xy + 12xy - 28 {y}^{2} [/tex]
[tex] - 6 {x}^{2} + 26xy - 28{y}^{2} [/tex]
Answer:
[tex](-2x+ 4y)(3x - 7y)=-6x^2+26xy-28y^2[/tex]
Step-by-step explanation:
We multiply each term in the parentheses, by those of the other parenthesis:
[tex](-2x+ 4y)(3x - 7y)=(-2x)(3x)+(-2x)(-7y)+(4y)(3x)+(4y)(-7y)\\=-6x^2+14xy+12xy-28y^2[/tex]
Now, we simplify.
We have two terms that contain xy:
[tex]=-6x^2+26xy-28y^2[/tex]
Wich will be the correct simplification of the expressionn [tex](-2x+ 4y)(3x - 7y)[/tex]
The size of a laptop monitor is usually measured along the diagonal. A rectangular monitor is 12 inches long and 7 inches tall. What is the length of the diagonal of this monitor, to the nearest tenth of an inch? Enter your answer, as a decimal, in the box.
Answers
a^2 + b^2 = c^2
12^2 + 7^2 = c^2
144 + 49 =c^2
193 = c^2
c= 13.89
14
The length of the diagonal of this monitor, to the nearest tenth of an inch, would be 14.
What is Pythagoras Theorem?If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:
[tex]|AC|^2 = |AB|^2 + |BC|^2[/tex]
where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).
The size of a laptop monitor is usually measured along the diagonal. A rectangular monitor is 12 inches long and 7 inches tall.
[tex]a^2 + b^2 = c^2\\12^2 + 7^2 = c^2\\144 + 49 =c^2\\193 = c^2\\c= 13.89 14[/tex]
Learn more about Pythagoras' theorem here:
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