A right angled triangle has hypotenuse 9cm and sides (x+5) and (x-3)cm. calculate x

Answers

Answer 1

Answer:

x= 3.95

Step-by-step explanation:

Hypotenuse = 9 cm

side = (x+5) cm

other side = (x-3) cm

Pythagoras theorem:          Hypotenuse² = Base² + Base²

9² = (x+5)² + (x-3)²

81 = x² + 25 + 10x + x² + 9 - 6x

2x² + 4x - 47 = 0

Quadratic Formula

x = (-b±√b²-4ac) / 2a

x = (-4±√16+376) / 2(2)

x = (3.95 and -5.95)

   We ignore the negative  -5.95

So x = 3.95


Related Questions

1. If Frank has 2 times as many dimes as quarters and they have a combined value of 180 cents, how many of each coin does he have?
d=
q=
2. If Sam has 3 times as many dimes as quarters and they have a combined value of 330 cents, how many of each coin does he have?
d=
q=

Answers

Leftmostcomet can u help me I posted a math question d

In the diagram below, what kind of line is BF relative to ABC?

Answers

Line BF is one of the three angle bisectors that meet at point F (incenter), hence, line BF as it relates to ABC is called the: interior angle bisector.

What is an Interior Angle Bisector?

An interior angle bisector can be described as the line segment that divides an interior angle into two halves.

When the three interior angle bisector of a triangle meet at a point, the point is referred to a the incenter.

The diagram guven shows the incenter where the three interior angle bisectors meet.

Therefore, line BF as it relates to ABc is called the: interior angle bisector.

Learn more about the interior angle bisector on:

https://brainly.com/question/4421815

A European swallow flies about 14 meters in 1 second.

How many kilometers could it fly in 15 minutes?

It could fly
km.

Answers

ANSWER:
12.6 km

EXPLANATION:
If the swallow fly goes 14 m/s then you can multiply 14x60 to get 840m per minute.
From there you multiply 840x15 and get 12,600m for 15 minutes. You then divide 12,600/1000 to convert meters into kilometers and you get 12.6km.

Hope this helped!

What is x in "5x + (x+12)+(2x+4)"

Answers

Answer:

[tex]\rightarrow \boxed{\sf{8x+16}}[/tex]

Step-by-step explanation:

You have to isolate the term of x from one side of the equation.

Distributive property:

A(B+C)=AB+AC

5x+(x+12)+(2x+4)

5x+(x+12)+(2x+4)=5x+x+12+2x+4

5x+x+12+2x+4

Group and combined like terms.

5x+x+2x+12+4

Add the numbers from left to right.

12+4=16

Rewrite the problem down.

5x+x+2x+16

Then, you solve.

5x+x=6x

6x+2x=8x

8x+16

As a result, the final answer is 8x+16.

I hope this helps you! Let me know if my answer is wrong or not.

Vicki started jogging. The first time she ran, she ran mile. The second time, she ran mile, and the 516 58 15 16 third time, she ran 16 mile. If she continued this pattern, when was the first time she ran more than 1 mile? Complete the explanation Express the fraction as a mixed number in simplest form. mile(s) every new time she ran. Therefore, the ? time, Vicki had a pastem of adding she ran milles​

Answers

Answer:

Afar fom what i've got from another question on Brainly. I might be wrong but It could Possibly be The 6th Time Vicki Runs!

Step-by-step explanation:

I apologise if this isnt the answer..............


A minibus drives with a constant speed
of 32 km/h. How long will it take to travel
a distance of 80 kilometers?

Answers

Given Information :-

A minibus drives with a constant speed of 32 km/hr

To Find :-

Time taken to travel a distance of 80 kilometers

Formula Used :-

[tex] \qquad \star \: \red{ \underline{ \boxed{ \sf Time = \dfrac {Distance} {Speed} }}} \: \star[/tex]

Solution :-

Putting the values in the formula, we get,

[tex] \sf \longrightarrow Time = \dfrac{80 }{32} \: \: \: \: \: \: \\ \\ \\ \sf \longrightarrow Time = \cancel{\frac{80}{32} } \: \: \: \: \: \: \\ \\ \\ \sf \longrightarrow Time = \dfrac{10}{4} \: \: \: \: \: \: \: \\ \\ \\ \sf \longrightarrow Time = 2.5 \: hrs \\ \\ [/tex]

Thus, the time taken to travel 80 km with that speed is 2.5 hours.

[tex] \underline{ \rule{227pt}{2pt}}[/tex]

Lin’s family needs to travel 325 miles to reach her grandmother’s house. At 377 miles, what percentage of the trip’s distance have they completed?

None of these answer this question and I cant get it anywhere else

Answers

Answer:

325/377×100= 116% it means they completed 116%of the trip

If it’s 1 pm what time will it be in 30 hours

Answers

Answer:

7pm

Step-by-step explanation:

1pm + 24 = 1pm

30 - 24. = 6

1pm + 6 = 7pm

find the equation (in terms of x) of the line through the points (-4,2) and (3,-5)

Y=

Answers

Answer:   y = -x-2

==================================================

Explanation:

First we need the slope

[tex](x_1,y_1) = (-4,2) \text{ and } (x_2,y_2) = (3,-5)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{-5 - 2}{3 - (-4)}\\\\m = \frac{-5 - 2}{3 + 4}\\\\m = \frac{-7}{7}\\\\m = -1\\\\[/tex]

Then we can find the y intercept using the coordinates of (x,y) = (-4,2)

y = mx+b

2 = -1(-4)+b

2 = 4+b

2-4 = b

-2 = b

b = -2

Alternatively, you can use the other point (x,y) = (3,-5) and m = -1.

Because m = -1 and b = -2, we go from y = mx+b to y = -1x+(-2) which simplifies to y = -x-2

the figure represent 7/9 0f a full circle Find the measure of the marked central angle

Answers

Step-by-step explanation:

tbh I don't know I need help with that too please like this comment

The measure of the marked central angle of the sector will be 280°.

What is the arc length of the sector?

Let r is the radius of the sector and θ be the angle subtended by the sector at the center. Then the arc length of the sector of the circle will be

Arc = (θ/2π) 2πr

The figure addresses 7/9 of a complete circle. Then the arc length of the circle will be given as,

Arc / P = 7/9

Simplify the equation, then we have

(θ/2π) 2πr / 2πr = 7/9

θ/2π = 7/9

θ = 14π / 9

θ = 280°

The central angle of the sector will be 280°.

More about the arc length of the sector link is given below.

https://brainly.com/question/15955580

#SPJ2


What is the area in polynomial form

Answers

Answer:

[tex] \orange{ \boxed{ \sf{ ( \: {x}^{2} + 11x + 18 \: ) \: sq. \: units}}}[/tex]

Solution :

Area = lenght x width

Lenght = x + 9

Width = x + 2

[tex] \sf \green{area \: = \: (x + 9)(x + 2)} \\ \sf \green{ = \: { {x}^{2} + 11x + 18}} [/tex]

Answer:

[tex]x^2+11x+18\: \sf(square\:units)[/tex]

Step-by-step explanation:

To use the area model of solving multiplication and division problems, calculate the area of each of the colored rectangles and add them together.

Area of a rectangle = Length × Width

Area of blue rectangle:  [tex]x \times x = x^2[/tex]

Area of pink rectangle:  [tex]x \times 9 = 9x[/tex]

Area of green rectangle:  [tex]2 \times x=2x[/tex]

Area of orange rectangle:  [tex]2 \times 9=18[/tex]

Area of entire rectangle = blue + pink + green + orange

                                        = [tex]x^2+9x+2x+18[/tex]

                                        = [tex]x^2+11x+18\: \sf(square\:units)[/tex]

Simplify cos^4x+2cos^2xsin^2x+sin^4x

Answers

Answer: 1

Step-by-step explanation:

Please Help.........
What is the equation of the given line in the point-slope form?


A.
= - + 1
B.
+ = 1
C.
+ + 1 = 0
D.
4 = 3 + 1
E.
– 4 = 1( – 3)

Answers

hello!

[tex]============================[/tex]

First, let's use the Slope Formula to find the slope:

[tex]\pmb{\displaystyle\frac{y2-y1}{x2-x1} }[/tex]

[tex]\pmb{\displaystyle\frac{4-1}{3-0} }[/tex]

[tex]\pmb{\displaystyle\frac{3}{3}}[/tex]

Which simplifies to

[tex]\pmb{1}[/tex]

So the slope is 1.

Now, here's a point that the line passes through:

(0, 1)

Write the equation in point-slope form:

[tex]\pmb{y-y1=m(x-x1)}[/tex]

y-1=1(x-0)

================================================

note:-

Hope everything is clear; if you need any more clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

Need help with this geometric question ASAP, Thank you

Answers

Answer: 15

Step-by-step explanation:

Find the roots of p(x)=x^3-10x^2+25

Answers

Answer:

  {−1.47596288535, 1.73968983949, 9.73627304586}

Step-by-step explanation:

The roots of this cubic are real and irrational, as indicated by a graph of it. (Rational roots would be divisors of 25.) The same graphing calculator can provide an iterative solution to 12 significant figures. Here, we have used Newton's method iteration. The iteration function is ...

  g(x) = x -p(x)/p'(x) . . . where p'(x) is the derivative: 3x^2-20x

We started each iteration using the value shown on the graph.

  x ∈ {−1.47596288535, 1.73968983949, 9.73627304586}

__

The second attachment shows another calculator's solution. The values of x that are roots are the opposite of the constant in each binomial factor. You will notice this solution has a couple more significant figures than the one shown above.

__

Additional comment

There are several formulas for finding the "exact" roots of the cubic. Here's a trig approach that works reasonably well for cubics with 2 or 3 real roots.

We can define, for p(x) = x³ +ax² +bx +c, ...

  s = -a/3 = 10/3

  t = b -a²/3 = -100/3

  r = a(2a² -9b)/27 +c = -10(200)/27 +25 = -1325/27

  d = √(-4t/3) = √(400/9) = 20/3

  h = 4r/d³ = -53/80

Now, the roots are ...

  x = s +d·sin(arcsin(h)/3 +2nπ/3) . . . . for n=-1, 0, 1

  = 10/3 +20/3·sin(arcsin(-53/80)/3 + n(2π/3)) . . . . . "exact solution"

  = (10/3)(1 +2·sin(-13.8303° +n(120°))

  = -1.47596..., or 1.73969..., or 9.73627...

What is the Area of this shape?

Answers

Answer:

448 ft ^2

Step-by-step explanation:

[tex]A = \frac{b_{1} + b_{2}}{2} * h\\A = \frac{17 + 39}{2} * 16\\A = \frac{56}{2} * 16\\\\A = 28 * 16\\\\A = 448 ft^{2}[/tex]

Hope this helps,

If best, mark brainliest, if not, hope it helps anyway.

Find the volume of the prism.

Answers

Answer:

240 cm³

Step-by-step explanation:

Volume of prism= base area ×height

The base is a rectangle here, and its area has the formula of length ×breadth.

Given

length of base= 10 cm

breadth of base= 6 cm

height of prism= 4 cm

Base area

= 10(6)

= 60 cm²

Volume of prism

= 60(4)

= 240 cm³

Answer:

240 cm³

Step-by-step explanation:

Volume of a rectangular prism: l*w*h

L (length) : 10 cmW (width): 6 cmH (height): 4 cm

V = l*w*h  <== substitute the numbers (above) for the variables

V = 10*6*4

V = 60*4

V = 240 cm³ (cubed)

Hope this helps!

Sandra can buy 6 tomato seed packets for $2. If all the tomato seed packets cost the same amount of money, how many packets can Sandra buy for $10
A. 12
b.20
c. 24
d.30

Answers

Answer:

D. 30

Step-by-step explanation:

Notice how $2 buys 6 packets. This means that if Sandra had $1, she could buy 3 packets.

If she had $10, you must multiply 3 (packets) by 10. Sandra can buy 30 packets with $10.

Answer:

The answer is 20 (I think)

Step-by-step explanation:

The question says 6 tomato seeds at $2

So, 10*2=20

hence proved

Suppose that y varies inversely with x. Write a function that models the inverse function.

x = 6 when y = 8

Answers

y=k/x
8=k/6
k=48
:y=48/x

[tex] \qquad \qquad \huge\text{Anѕwer}♨[/tex]

Let's Solve ~

❖ Aѕ givєn in thє quєѕtiσn, ч vαriєѕ invєrѕєlч with х, thiѕ єхprєѕѕiσn cαn вє rєprєѕєntєd αѕ :

[tex] \qquad \Rrightarrow \rm y \propto \dfrac{1}{x} [/tex]

➻ To rєplαcє prσpσrtiσnαlitч ѕign with єquαlѕ tσ, wє hαvє tσ uѕє α cσnѕtαnt (k)

[tex] \qquad \Rrightarrow \rm y = k \times\dfrac{1}{x} [/tex]

[tex] \qquad \Rrightarrow \rm \dfrac{}{} xy = k[/tex]

➻ nσw, plug in vhє vαluєѕ σf х αnd ч fσr α ѕpєcific inѕtαnt, thαt'ѕ givєn in thє quєѕtiσn ~

х = 6, whєn ч = 8

[tex] \qquad \Rrightarrow \rm \dfrac{}{} 6 \times 8 = k[/tex]

[tex] \qquad \Rrightarrow \rm \dfrac{}{} k = 48[/tex]

thєrєfσrє, vαluє σf prσpσrtiσnαlч cσnѕtαnt iѕ 48

➼ ѕσ, thє rєquirєd єхprєѕѕiσn will вє :

[tex] \qquad \Rrightarrow \rm \dfrac{}{} xy = 48[/tex]

please answer this question​

Answers

I hope I can help you:)
= -11/28 is the answer

For each babysitting job she does, Emily charges $7 for each hour, x, she works, plus $2 for bus fare. Emily wants to earn at least $23 for her next babysitting job. Which inequality shows all the possible numbers of hours he could work and earn that amount?

Answers

Answer:

37 hope this helps sorry if wrong

Ryan's annual salary is $54,000. A total of $15,340.80 will be deducted for taxes and health insurance. He will receive his paycheck monthly in 12 equal
installments. How much will he get paid with each paycheck?

Answers

Answer:3,221.6

Step-by-step explanation: if you divide 54,000 by 12, you get 4,500 which is the untaxted payment per month, then you must divide 15,340.80 by 12, which is 1,278.4, then you subtract that from 4,500 which ends up being 3,221.6

Triangle ABC is isoceles and has a perimeter of 20cm.Sides AB and AC are each twice as long as BC. Calculate the length of the side BC

Answers

Answer:

length of the side BC=4

Step-by-step explanation:

length of the side BC = x

length of the side AB = 2x

length of the side AC = 2x

x + 2x + 2x = 20

5x=20

x=4

      BC = 4

AB=8

AC=8

  8+8+4=20

A triangular window has an area 240 square feet and height 16 feet. What is its base?

Answers

Answer:

30 feet

Step-by-step explanation:

Area of a triangle = bh/2

A = bh/2

240 = b(16)/2

480 = (16)b

30 = b

Base = 30 feet

I hope this helps!

Answer:

30 ft

Step-by-step explanation:

Formula to find the area of a triangle is :

Area = [tex]\frac{1}{2}[/tex] × base × height

Given that,

Area of the triangle = 240 ft²

Height = 16 ft

Base = ??

Let us find now.

Area = [tex]\frac{1}{2}[/tex] × base × height

240  =  = [tex]\frac{1}{2}[/tex] × b × 16

240 × 2 = 16b

480 = 16b

Divide both sides by 16.

30 ft ⇒ base

How many quarts are in 9 gallons?

Answers

Answer:

1 gallon = 4 quarts

4 × 9 = 36

36 quarts are in 9 gallons

Answer the following math questions thank you math experts

Answers

Answer:

1) the connection between 2 or more meausures

2) when the r value is closer to 1 or -1 it is a stronger correlation

3) positive correlation would be height and weight. Taller people tend to be heavier. A negative correlation is a relationship between two variables in which an increase in one variable is associated with a decrease in the other

Step-by-step explanation:

choose me as brainlyest:)

The circumference of the inner circle is 22 ft. The distance between the inner circle and the outer circle is 2 ft. By how many feet is the circumference of outer circle greater than the circumference of the inner​ circle? Use 22/7 for pi .

Answers

Answer: 25.1

Step-by-step explanation:

1. Find the radius of the inner circle

(the formula for the circumference of a circle is )   C =2pi r

To find the radius of the inner circle, you would plug in the given information so that your equation looks like this:

22 = 2(22/7)r

then solve for r

r = 3.5

2. add 4 to the radius of the inner circle

3.5 + 4 = 7.5

3. find the circumference of the outer circle using 7.5 as the radius

22 = 2 (22/7) 7.5

C = 47.1

4. Subtract the circumference of the inner circle from the circumference of the outer circle

47.1 - 22 = 25.1

PLEASE help me. Please. Which debates among historians over the effects of the Vietnam War did you discover in your research?

Answers

Answer:

The Domino Theory suggested that one nation becoming Communist makes it more likely that others will too. Without American involvement, the South would quickly have fallen to the North and the nation, united under Communism, would have joined the Communist bloc.                

Step-by-step explanation:

The function h(x) is a transformation of the square root parent function,
f(x) = V. What function is h(x)?

Answers

Answer:

Step-by-step explanation:A. h(x) = √(x-2)

Step-by-step explanation:

To translate a function right by p units and up by q units, the function becomes ...

g(x) = f(x -p) +q

Here, there is no translation upward, but there is a translation of 2 units to the right. The transformed function's name is given as h (not g), so you have ...

(p, q) = (2, 0)

h(x) = f(x -2) +0

h(x) = √(x -2)

The function h(x) , a transformation of the parent function f(x) = √x is √(x+1). Option A is correct option.

What is transformation of a function?

The transformation of the function is a function that curves a graph formed by the moving the original graph to left / right / up / down or by expansion or compression.

The transformation is of type horizontal shift when the curve moves to left or right. For y = f(x) , when this curve moves left or right the transformation  is given by y = f(x +c), c > 0 moves y=f(x) to the left by c units

and if c < 0 , moves  y =f(x) to the right by c units

Given that the graph of the f(x) = √x by dotted line and the graph of its transformation h(x) given by solid line.

h(x) is clearly formed by moving f(x) one units to the left as it is moved to left by 1 on origin

Then transformation of y =f(x) moving one unit to left will be given by

y = f(x+1) =√(x+1)

Therefore , transformation h(x) of f(x) is h(x) =√(x+1) and option A is correct option.

Also, Learn more about the transformation of a function from the link below:

https://brainly.com/question/13810353

#SPJ5

MATH Arithmetic QUESTION

Answers

Answer:

Point A

Step-by-step explanation:

It can be seen from the image that the chosen value for N is greater than zero but less than 1, i.e,

[tex]0 < n < 1[/tex]

The square of such numbers will always result values less than N since they're decimals with zeroes on the whole number parts.

Hence, the value for N squared will be in the region of Point A.

Other Questions
Where do many of the rivers in China and southeast Asia begin . WILL GIVE BRAINLIEST FOR THE BEST ANSWER . THANKS which European country colonized Brazil? evaluate the expression 4 3x when x is 2 Vocabulario A1CrucigramaComplete the following crot ord puzz with words used for pastimes.HorizontalVertical1. Para jugar a las necesitas fichas 1. Necesitas papel y lpices de color(counters) rojas y negras.para3. Nintendo hace muchos__2. Si una pieza es un caballo, juegas al4. El ftbol _ es diferente al ftbol (soccer). 4. Los son ejercicios que hacescon msica.6. Necesitas una pelota (ball) y una canasta(hoop) para jugar al5. Para jugar al __, le das a la pelota (ball)con las manos o los brazos.7. Si tienes un A o un 5. juegasa las8. Un_ es una actividad divertida.-160Unidad 7, Leccin AQu chvere! 1 WorkbookCarnegie Learning, Inc. Are my answers correct? A picture frame measures 18 cm by 20 cm on the outside, and 168 cm?of picture shows.Find the width of the frame around the picture.The width of the frame iscm. Find the number of permutations when 7 objects are taken 1 at a time What is the area of this triangle?Enter your answer in the box.units 7. Which of the following activities is most likely to be consideredpurposeful?a. misplacing your keys, wallet, and phoneb. discovering a nest while on a hikec. finding two dimes on the floora graduating from high school You want to know the average height of your three closest friends.Should you survey the population or a sample? Which country has the same government as South Africa? Mrs. o'brien used a compass to draw two circles on a coordinate plane. circle a is centered at (3,-1)and has a radius of 4 units. circle b is centered at (4, 5) and has a radius of 3 units. select all of thetransformations that can be performed on circle a to prove that it is similar to circle b. please help I'll give brainliest if answer is right Which phrase best describes the change Anne undergoes based on the setting?A. from nervousness to relaxationB. from nervousness to determinationC. from timidity to frightD. from timidity to regret The function f(x)=x^2 is graphed on the coordinate grid. Use the Parabola tool to graph g(x).g(x)=3x^2Graph the parabola by first plotting its vertex and then plotting a second point on the parabola. PLEASE HELP QUICK !!!! For each of the following functions, list the excluded values from thedomain:f (x) =g(x) =2-322 9h(x) = V16 22 please answer this asap and please show work. 4sin45 degrees cos 15degrees=1+square root 3 Write a complete sentence describing two things you bought recently at a market andwhat each was made of.With words from this vocabulary Tech A says that an inductive pickup coil can be tested for shorts and grounds with an ohmmeter. Tech B says that an inductive pickup coil pattern can be tested with a lab scope. Who is correct