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AB= 3x + 1, BC = 10, what is the length of CA?

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physics
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the ...

Physics
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the ...

Maths
the points A,B,C and D lie on a straight line. The ratio of the length of AB to the length of BC is 3:4 and the ratio of the length of AC to the length of CD is 2:1. Find the ratio of the length of BC to the length of AD ?

Physics
The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the rod will decrease. The length of the rod will increase. Wouldn't the length double, thus being answer D?

Physics
The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the rod will decrease. The length of the rod will increase. Wouldn't the length double, thus being answer D?

Physics
The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the rod will decrease. The length of the rod will increase. Wouldn't the length double, thus being answer D? No one has answered this question yet.

PHYSICS
how to calculate formula for period of a cylinder that depends on radius(cm), length(cm) and time(sec). If a radius is 3.84 and at length(30)=.83sec length(100)=3.31sec length(200cm)=6.04sec

math
how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original

math
how to rewrite rule in symbols: At a certain time of day,the length of a shadow s cast by an object is twice the length of the object L each length h in a copy 1/100 the length k in the original

Math
Please help me with this home work Triangle ABC ~ Triangle ADE AD=5; DB=3.5; BC=5.1; AE=6; EC=x What is the length of AB? What is the length of DE? Write an expression that represents AC? What is the length of EC? What is the length of AC? Thank you

Math-Triangles
How do I find a missing length to a triangle? The lenths I have are 18 for one side 27 for the other and (x) for the bottom length. Then for the other triangle given the lengths are 14 for one length, 21 for the other length and 28 for the bottome length. I am trying to solve ...

Math
Triangle ABC ~ Triangle ADE AD=5; DB=3.5; BC=5.1; AE=6; EC=x What is the length of AB? What is the length of DE? Write an expression that represents AC? What is the length of EC? What is the length of AC?

Statistics
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine. The desired length of the insulation is 12 ft. It is known that the standard deviation in the cutting length is 0.15 ft. A sample of 70 ut sheets yields a mean ...

geometry
BC is an altitude with length of 30 of ƒ´ABD. AC has a length of 16 What is the length of CD? If necessary, round your answer to two decimal places.

Math
Rectangle ABCD shares BC with equilateral triangle BCE. The length of CD is 4cm, and the length of DA is 3cm. What is the length of BE?

math
the length of the hypotenuse of a right triangle is 15 ft. the length of one legs is 9 ft. find the length of the other leg. a) 6 ft b) 21 ft c) 12 ft d) 18 ft

math
A wire of length 12 1/2m is cut into 10 pieces of equal length. Find the length of each piece.

Math
A right triangle hypotenuse has length of 5. If one keg has length of 2, what is the length of the other leg?

Math
A rope of length 9 3/4 is cut into 6 pieces of equal length. Find the length of each piece.

geometry
EF is a median of trapezoid ABCD. If the length of EF is 14x, and the length of CD is 20x, what is the length of AB in terms of x?

geometry
EF is a median of trapezoid ABCD. If the length of EF is 14x, and the length of CD is 20x, what is the length of AB in terms of x?

math
which would you measure using feet? A.length of your finger B.length of your school C.length of your room D.distance across town ???

Math
which would you measure using feet 1.length of your finger 2.length of your school 3.(length of your room) 4.distance across town

math
suppose the diameter of a circle has length d. the length of a chord is c and the length of the arc cut off by the cord is s. express sin(s/d) in terms of c and d

MATH
which would you measure using feet? A.length of your finger B.length of your school C.length of your room D.distance across town ??? I PICKED D!!

Algebra
An alligators tail length, T varies directly as its body length, B. An alligator with a body length of 5.4 feet has a tail length of 4.8 feet. what is the tail length of an alligator whose body length is 4.5 feet? In desperate need of solving this!

Math
In a right triangle, find the length of the side not given. Approx to the three decimal places. a and b are the length of the legs and c is the length of the hypotenuse. b = 4"sqrt"2 and c = 9

Pythagoras therem
the two legs of a right angled triangle are equal in length and the square of the length of its hypotenuse is 72cm find the length of each leg.

contemporary math
suppose that the length of one leg of a right triangle is 2 inches less than the length of the other leg.the length of hypotenuse is 10 inches.find the length of each leg.

ASAP math
how you do this: The perimeter of an isosceles triangle is 36cm, and the area is 60cm. The length of the base is 3cm less than the length of a leg. Find the length of each side.

math/geometry
complete the statements: To find the length of the hypotenuse of a 45-45-90 triangle, multiply the length of one of the legs by:? Could the answer be .5??? to find the length of the shorter leg of a 30-60-90 triangle, multiply the length of the longer leg by:? To find the ...

Math - Algebraic Vectors
Let vector u = [3, 2] a) Determine each vector i) 2u = 2[3, 2] 2u = [6, 4] c) Determine the length of each vector in a. MY QUESTION***** -------- Do you subtract the values to determine the length? Length = 2u - u Length = [6, 4] - [3, 2] Length = [3, 4]

Newton's law
7. A uniform flexible chain of length l, with weight per unit length lamba, passes over a small, frictionless, massless pulley. It is released from a rest position with a length of chain x hanging from one side and a length l-x from the other side. Find the acceleration a as a...

math
the length of a rectangle is 6 cm more than its width. the area is 11 cm squared. find the length and width. look at the post by anonymous at 8:55, it is almost the same as yours. Do it the same way. length= x+6 width=x x(x+6)=11 x^2 + ^x =11 x^2+6x-11=0 (x-_)(x-_) solve for x...

math
Triangle ADE is proportional to Triangle ABC. The Length of DE is 20 Ft: the Length of AB is 6 ft. and the Length of BC is 8 Ft. What is the length of AD?

math
Triangle ADE is proportional to Triangle ABC. The Length of DE is 20 Ft: the Length of AB is 6 ft. and the Length of BC is 8 Ft. What is the length of AD?

ALGEBRA
An alligators tail length,T varies directly from its body length B. So an alligator with a body length of 7.7 feet has a tail length of 6.3 feet. What is the tail length of an alligator whose body length is 4.4 feet? Thanks ahead of time.

Math
The length of the luff is four times longer than the length of the foot of the sail. Find the length of the foot and the length of the luff.

math
Which two rectangles have an area of 72 square centimeters? A. length 12 cm, width 6 cm B. length 20 cm, width 16 cm C. length 9 cm, width 8 cm D. length 8 cm, width 7 cm

algebra
The length of a rectangle is 6 cm more than four times the width. If the perimeter of the rectangle is 42 cm, what are its dimensions? a. length = 18 cm; width = 3 cm b. length = 18 cm; width = 9 cm c. length = 6 cm; width = 9 cm d. length = 3 cm; width = 18 cm

PHYSICS!!!
if the same ball rolls down from three different length trackways with a 20degrees elevation, its acceleration on the short-length trackway is 1.08m/s^2;its acceleration on the medium-length trackway is 1.79m/s^2;and its acceleration on the long-length trackway is 1.52m/s^2. ...

physics
A steel rod of length 4 m is welded to the end of an aluminum rod of length 3 m (lengths measured at 23 °C). The combination rod is then heated to 198 °C. What is the length of the combination rod at 198 °C? (The linear expansion coefficients for steel and aluminum are 1.3 ...

math
complete the table that shows the length of the chain formed when rings are liked in a staright line 1)number of rings 1 length of chain 16mm 2)number of rings 2 length of chain 30m 3)number of rings 3 length of chain 44m 4)number of rings 6 length of chain ( ) 5)number of ...

biology
What connections can you identify between the metric units for length and volume length x length x length = cubic length. That is cm x cm x cm = cubic centimeters or m x m x m = cubic meters. That is length used to measure the sides will provide a volume. That is why volume ...

Math
The length of one leg of a right triangle is 8ft. The length of the hypothenuse is 2feet longer than the other leg. Find the length of the hypothenuse and the other leg. The length of the hypothenuse is _______ ft. The length of the other leg is ___________ft.

Math Help
The length of an object in feet is equal to 3 times its length in yards. The length of a waterslide is 48 feet. Write and solve a multiplication equation to find the length of the waterslide in yards.

Music Physics
The clarinet's lowest note is D3, 147 Hz. What is its effective length, that is, the length of an idealized closed pipe that has this frequency for its first mode? Explain why this is less than the actual length of the instrument?

apex geometry
Hannah constructed two similar circles as seen in the image below. If the arc length of the larger circle is , which of the following would be true? A. The arc length of the smaller circle is proportional to the radius of the smaller circle. B. The arc length of the larger ...

ALGEBRA HELP
The perimeter of a rectangle is 60cm. The length (L) of the rectangle can be represented by (2x-7). What are the dimensions? A) length=10 width=14 B) length=6 width=18 C) length=9 width=15 D) length=10 width=1 or 15

physics
Using the data below, suggest a proportionality statement. Length (cm) Frequency (Hz) 100 0.46 80 0.52 60 0.62 40 0.74 20 1.01 I think it's f ¡Ø 1/¡Ìlength (one over square root of length) or is it l ¡Ø 1/f^2 By the way, the length is the controlled variable.

IB Math
If AB is the same length as CD, BC is 2 cm shorter than AB and BE is 7 cm in length, find the length of AB.

geomtry
EF is a median of trapezoid ABCD. The length of AB is 12, and the length of CD is 18. What is the length of EF?

algebra help please
The area of a rectangle of length x is given by 3x^2+5x find the width of the rectangle a=l*w =x*(3x+5) I stoped here I am not sure if I am correct i was taken the 3x+5 as the width and x as the length but i am not sure if the 3x+5 should be the area and divid by x the length ...

Math - Polygons and Quadrilaterals
A rectangle has a diagonal of length 125. If the ratio fo the length of the short side to the length of the long side of the rectangle is 7:24, what is the length of the shorter side of the rectangle?

Math. fast please!
The length of a rectangle is 3 cm and the width is 2 cm. find the length of the diagonal. Is there a formula to do this? The length of a rectangle is 3 cm and the width is 2 cm. find the length of the diagonal. Is there a formula to do this? The diagonal D and each pair of ...

math
the length of a rectangular playing field is 5ft less than twice its width. If the perimeter is of the playing field is 230ft, find the lenght and width of the field. How would I even begin to set up the equatin let alone solve the equation 230=2w-5+2w-5+w+w this is bcus your ...

Maths
Please help.... The figure is not drawn to scale. It shows two squares. the total area of two squares is 65 sq cm. the length of the smaller square is more that half the length of the larger square. given that the length of each square is a whole number, find the length of ...

geometry
a right triangle has a hypotenuse of length 25 and a leg length of 15. what is the length of the other leg? if necessary, round you answer to two decimal places

maths
points A,B,C and D lie on a straight line in the given order. AC=25cm and BD=46cm. the ratio of length CD to length AB is 5/2. find the length of line segment BC in cm.

Maths Problem
Anyone, Please Help me. the figure is not drawn to scale. it shows two squares. the total area of two squares is 65 sq cm. the length of the smaller square is more that half the length of the larger square. given that the length of each square is a whole number, find the ...

Geometry
If the length of one base of a trapezoid is 5, the length of the other base is 2x + 7, and the length of the midsegment is 6x – 24, what is the value of x? Show equations and all work that leads to your answer.

mathematics
1.An aquarium has the shape of a rectangular prism.It's length is 80 cm.its width is one-half of the length and its height is three-fourths of the length.What is the volume of the aquarium in cm3?

math
the length of one board is 2feet10inches,and the length of another board is1yard1foot9inches.what is the total length of the 2boards put together?a.1yard4feet6inchesb.2yard1foot7inchesc.1yard3feet20inchesd.3yard5inches

algebra
Thank for the answer to the problem: the perimeter of a basketball court is 108 meters and length is 6 mters longer than twice the width. You gave me the width, but not the length. What is the length?

math
a length of 200 cm is divided into 25 sections whose lengths are in A.P.given that the sum of the length of the 3 smallest sections is 4.2,the length of the larger section is? please help ...

Math (I'm really confused). Please help.
What is the length of approximated to the nearest tenth? A. 49 B. 32 C. 23 D. 7 Side AB has a length of 7x and Side CB has a length of 9x - 14. It is an equilateral triangle.

Math help!
The length of the hypotenuse of a right triangle is 13 m. The length of one leg is 5 m. Find the length of the other leg. A. 14 cm B. 144 cm C. 8 cm D. 12 cm Is the answer C? Thank you

trig
The hypotenuse of a right triangle has length 8 and one of the other edges has length 3. What is the sine of the angle opposite the edge of length 3? (A) 3/p55 (B) 3/8 (C)p55/8 (D) 55/64 (E) None of the above.

Linear Algebra 8; Slope-Intercept Form
A right triangle has a leg b of length 7 and a hypotenuse of length 11. What is the length of the other leg, a? Round to the nearest tenth, if necessary. A) 2.0 B) 8.5 C) 13.0 D)9.6

MATH help me pls :D
Find the length of the missing leg of a right triangle given a leg of length 15 and a hypotenuse of length 17. Leave your answer in simplest radical form.

Maths
The breadth of a rectangular plot of land is 85% of its length. The difference between the length and breadth is 18m. A) what is the length B) what is the area

Math
The length of the hypotenuse of a right triangle is 15 cm. The length of one leg is 9 cm. Find the length of the other leg. 6 cm 12 cm 17 cm 144 cm

Math - Algebra
The length of the hypotenuse of a right triangle is 13 cm. The length of one leg is 5 cm. Find the length of the other leg.

math
6. The length of the hypotenuse of a right triangle is 15 cm. The length of one leg is 9 cm. Find the length of the other leg. 6 cm 12 cm 17 cm 144 cm

math
The length of the hypotenuse of a right triangle is 13 m. The length of one leg is 5 cm. Find the length of the other leg. a) 14 cm b) 144 cm c) 8 cm d) 12 cm

Math HELP!
The length of the hypotenuse of a right triangle is 15 ft. The length of one leg is 9 ft. Find the length of the other leg. A. 6 ft. B. 21 ft. C. 12 ft. D. 18 ft. Is the answer C? Thank you

Maths
The triangle is called ABC. Angle B has an angle of 90 degrees. The length of AB is 15mm and the length of BC is 16mm. Find the length of AC

physics
A.An observer moving at a speed of 0.810 c relative to a rod measures its length to be 2.00 m and sees its length to be oriented at 30.0 degrees with respect to the direction of motion. What is the proper length of the rod? B.What is the orientation angle in a reference frame ...

math 117
A rectangle has an area of (a^2+4a+4) square inches, and you know that the width is (a+2) inches. You can use long division to determine the length of the box. area = length * width, length = area/width I got this as my answer The length is going to be a+2 a+2/a^2+4a+4 is this...

algebra
The length of a spring is a linear function of the mass of the object hanging from it. For a particular spring, the length was 12 centimeters when a 2-kg mass was attached to it. When a 5-kg mass was hung from it, it stretched to a length of 18 cm. Which equation relates the ...

physics
1)An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of spring is? 2)A force of 100N stretches an elastic spring to a total of 20cm. If an additional force of 100N stretches the ...

Math
2. The length of time that it takes for a pendulum to make one complete swing depends on the length of the pendulum. The time in seconds, T, is related to the length in metres, L, through the equation T = 2π√(L/9.8) c. Graph this function for pendulums up to 20m in ...

geometry
If the length of the hypotenuse of a right triangle is 65 cm and the length of one side is 56 cm, then the length of the other side must be

math
A piece of cloth that measures 1 yard in length is about the same length as cloth measuring___________ in length.

geometry
The length of the smaller of the two diagonals of a rhombus is 12 and the length of the larger diagonal is 16. What is the length of a side of the rhombus?

algerbra
Find the approximate length of the leg of a right triangle with one leg length 8 and hypotenuse length 19

Math
All these are either rectangles or squares 1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width 5x5=25 3.Rectangle. 6 is length and 8 is width 8x6=48 4.Square. 10 is length and 10 is width 10x10=100 5.Rectangle. 40 is length and 20 is width ...

Physics
A converging thin lens made out of crown glass (n=1.52) has a focal length f=1.0m An identical lens (same radius for the spherical surfaces), made out of a high-index plastic with n=1.70 will be ... A. Converging with a focal length smaller than 1.0 m B. Diverging with a focal...

math problem
In DABC, what could the 7 shown in the ratio sin A = 7/9 represent? A) the length of the adjacent side of angle B B) the length of the opposite side of angle A C) the length of the hypotenuse of a right triangle D) the length of the adjacent side of angle A I did this as an ...

physics
If an observer is traveling parallel to a rod at twice the speed of the rod, what is does the observer perceive the length to be? Choose one answer. a. The length of the rod remains the same. b. The length of the rod will become twice its original value. c. The length of the ...

physics
If an observer is traveling parallel to a rod at twice the speed of the rod, what is does the observer perceive the length to be? Choose one answer. a. The length of the rod remains the same. b. The length of the rod will become twice its original value. c. The length of the ...

algebra
the length of a rectangle, given that its width is w feet and its length is 3 feet shorter than twice the length.

algebra
The length of an altitude of a triangle is 1/3 the length of the side to which it is drawn. If the area is 6 square cm., then what is the length of the altitude?

math
the diagram shows the length of the borders of the fence the length of the fence is 62 meters what is the unknown Length

geometry
A right triangle has one leg with a length of 48 and a hypotenuse with a length of 80. What is the length of the other leg?

geometry
A right triangle has one leg with a length of 48 and a hypotenuse with a length of 80. What is the length of the other leg? A. 63 B. 64 C. 65 D. 66

physic
The resistance of a copper wire of diameter 10mm and length 2m is 15 Ω. Determine the new resistance if i) the length is doubled and the diameter halved ii) the length increases by three fold and the diameter doubled iii) the length decreases by two fold and the diameter ...

Math Help
A right triangle has a leg B of length 7 and a hypotenuse of length 11. What is the length of the other leg A? Round to the nearest tenth, if necessary. A. 2.0 B. 8.5 C. 13.0 D. 9.6 Please help, I was gone for this lesson, just need someone to explain how they got the answer.

math
5. Find the length of the hypotenuse of a right triangle with legs of 20 cm and 21 cm. 41 cm 841 cm 6 cm 29 cm 6. The length of the hypotenuse of a right triangle is 15 cm. The length of one leg is 9 cm. Find the length of the other leg. 6 cm 12 cm 17 cm 144 cm 7. If the sail ...

Physics
I was asked to compare my measured focal length to my calculated focal length. My calculated focal length I figured out by using the formula: 1/di + 1/do = 1/f Would my measured focal length = my di? I only measured by di and do in the actual experiment.

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