# What is the perimeter of a rhombus-shaped highway sign with a 20-centimeter side?

18,165 results

**Physics**

A sign is hanging from three ropes. The tension in the lefthand rope, T1, is 460.80 N. Angle θ1=68.9°, and angle θ2=33.8°.What is the tension, T2, in the righthand rope? What is the mass of the sign?

**Math please help urgent**

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from the top of the triangle...

**Chemistry**

A "neon" sign contains 2.4¡Ñ10^2 mL of argon. Assuming that the gas is at standard temperature and pressure, there is 1.00 moles of gas per 22.4 L of volume. How many argon atoms are present in this sign? (a). 6.5¡Ñ10^21 (b). 2.8¡Ñ10^22 (c). 3.2¡Ñ10^24 (d). 9.9¡Ñ10^-23

**Chemistry**

A "neon" sign contains 2.4¡Ñ10^2 mL of argon. Assuming that the gas is at standard temperature and pressure, there is 1.00 moles of gas per 22.4 L of volume. How many argon atoms are present in this sign? (a)6.5¡Ñ10^21 (b)2.8¡Ñ10^22 (c)3.2¡Ñ10^24 (d)9.9¡Ñ10^-23

**Math**

What is the volume of a sphere with a radius of 7 cm rounded to the nearest cubic centimeter a) 4,310 cm b) 1,437 cm c) 615 cm d) 359 cm

**maths**

L parallel to M ,ABCD parallelogram. IF area of (triangle BDC)=121.5 centimeter square ,write the value of h

**algebra**

an isosceles triangle is one in which two sides are the same length. The perimeter of an isosceles triangle is 36cm if the length of the congruent sides is 4 times the length of the third side, find the dimentions of the triangle

**Computer**

Suppose that you are the general manager for a major-league baseball team. During the off-season, you need to sign some free-agent players for your team. The team owner has given you a budget of $X to spend on free agents. You are allowed to spend less than $X altogether, but ...

**algebra 1A**

help please! the deepest point of the gulf of mexico lies approximately 12,4000 feet below sea level what is the integer that best expresses the given number. type a negative number with a negative sign, or type a positive number with no sign. is either one of these answers ...

**math**

.the perimeter of a rectangle is 30 m more than three times its width. if the perimeter is 84 m, find the length and width of the rectangle.

**geometry**

Suppose the dimensions of a rectangle with a perimeter of 22 inches are tripled. Find the perimeter of the new rectangle in inches.

**math**

A trapezoid has an area of one and a perimeter of five. If this pattern continues, what is the perimeter of a large trapezoid with an area of 96

**Th**

the area of a regular polygon varies jointly as its apothem and its perimeter. express the area in terms pf apothem a and the perimeter p

**Algerbra 1**

1/3x + 5/6 = 2/9x - 1/3 How do I solve this to get the answer? For basic algebra you need to understand that we can add (or subtract) the same quantity from both sides without affecting the = sign. We can also multiply and divide (except by 0) both sides without affecting the...

**Physics**

When James applied the brakes to his car, it slows unifromly from 15.0 m/s to 0.0 m/s in 2.50 s. How many meters before a stop sign must she apply her brakes in order to stop at the sign? Answers: 6.0m 37.5 m 18.8 m 48.0m Please help-I've just started Physics last week and I'm...

**algebra**

thank everyone that site helped but now i just have to practice. for now can someone tell me how does 3x=7-4x x=1 which one do you minus or subtract from the equation? 3x = 7 - 4x The first thing you need to do is get the unknowns on one side of the equation. You also need to ...

**Psychology**

Which statement best illustrates the idea that people adjust their behavior according to the gender schema theory? Choose one answer. a. Agnes tells her son that it is wrong to put makeup on his face and that boys don't wear dresses and skirts. b. Bart sees two doors in the ...

**Physics--Angular Momentum**

A square shaped block of mass m travels to the right with velocity v on a frctionless table surface. The block has side-length 2a. The block hits a very small, immovable obstacle on the edge of the table and starts to tip. The block has moment of inertia I=(2/3)ma^2 about an ...

**math please help**

There are two triangles one large and one small. Write an expression in simplest form for the perimeter of each triangle. Large triangle left side says 4x+2 top says 7x+7 bottom days 5x-4. Small triangle left side says x+3 top says 2x-5 and bottom says X+7. How do I write an ...

**1st grade**

Point value of a hexagon is six. trapezoid is 3. triangle is 1. Rhombus is 2. my homework says, shape, number and total. what do I do? thanks.

**geomatry**

I need to creat a parallogram,rectangle,square,rhombus,kite and triangle all should have the same area?

**geometry**

How do you find the lateral area and perimeter of a pentagonal pyramid? ex: The slant height of a regular pentagonal pyramid is 6 cm, and the length of each side of the base is 3 cm. Find the lateral area.

**geometry**

with 2 pentagons (A, B, C, D, E) & F, G, H, I, J.) start with A in lower left corner. Same with F. AE=10, BC=8: FG=9, FJ=15. There are diagonal line CE & HJ. x= AB, Y=GH. Find the scale factor of ABCDE to FGHIJ; need value of x & y; perimeter of ABCDE is 38, what is perimeter ...

**Geometry**

Find the perimeter of a region bounded on three sides by a rectangle with a base of 600 ft and a height of 800 ft and bounded above by a semicircle with a radius of 300 ft. Use the approximation π = 3.14. (Do not include the lower half of the semicircle in the perimeter)

**To DrBob222**

The math symbols are very easy to make, although they are not very user-friendly. Basically, we can type the & sign, immediately followed by a # sign and then the unicode number in decimal (as opposed to hexadecimal), and terminated with a ;. For example, the not-equal sign's ...

**Electromagnetic Iduction**

Neon sign require about 12,000 V for their operation. What should be the ratio of the number of loops in the secondary to the number of loops in the primary for a neon-sign transformer that operates off 120 V lines? Nprimary/Nsecondary= Primaryvoltage/secondaryvoltage solve ...

**geometry**

There are two noncongruent triangles that have a 9-inch side, a 10-inch side, and that enclose 36 square inches of area. Find the length of the third side in each of these triangles.

**geometry**

There are two noncongruent triangles that have a 9-inch side, a 10-inch side, and that enclose 36 square inches of area. Find the length of the third side in each of these triangles.

**geometry**

There are two noncongruent triangles that have a 9-inch side, a 10-inch side, and that enclose 36 square inches of area. Find the length of the third side in each of these triangles.

**5th grade math**

Kallisto built a rectangular sign that measured 2 3/4 feet in length by 1 1/2 feet in width. To find the area, multiply the length and width. what is the area of the sign in square feet? Write an equation to solve. 2 3/4 1 1/2 +2 3/4 1 1/2 =11/1/2 ------ ----- 4 6/4= 2 2/2=3

**Math**

A norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window with maximum area if the total perimeter is 16 feet. X = the width of the rectangle. Y = the length of the rectangle. X/2 = the radius ...

**socials**

when was our new constitution act signed? who sign it? this was like around 1980's. It be signed on april 17th 1982. and it be signed by queen elizabeth. i don't know if i mention trudeau. and who not sign this new constitution act? that be levesque i think.

**Calculus**

An ice cube is melting such that the side of the cube is decreasing at the rate of 1/4 t^2 cm / min. It is given that the side of the cube is 8cm at the start of the experiment. Calculate the length of the side of the cube when t = 4? ( answer 2 2/3 cm)

**calculus**

The base of a triangle is on the x-axis, one side lies along the line y=3x, and the third side passes through the point (1,1). What is the slope of the third side if the area of the triangle is to be a minimum.

**math**

Jimmy began deriving the quadratic formula as shown. ax² +bx +c = 0 x² +b/ax+c/a=0 x² +b/ax=−c/a x² +b/ax+(b/2a)² =−c/a+(b/2a)² What should Jimmy do next? Subtract x² from each side. Factor the trinomial. Add x² to each side. Subtract b2a from each side.

**Geometry**

The perimeter of a rectangle is 76 feet. If the width is doubled and the length is halved, the new rectangle will have a perimeter of 62 feet. Find the dimensions of the original rectangle. Define your variables.

**algebra**

suppose the length of a rectangle increases,but the perimeter remains at 70 feet. How does the width change? Either the width increases, decreases or remains the same. Which of these three choices makes the most intuitive sense? We know perimeter = 2(length +width) If ...

**Math**

In my schoolwork, they want me to find out the perimeter of a rectangle. I found out that the sides of the triangle was 3 forths of an inch and the top was 3 inches. I forgot how to find out the perimeter and the area. Could you please help?

**Math**

A fence to a rectangular enclosure has a width w, which Is (5m) shorter than its length. (A).write down an expression for the perimeter of the enclosure. (B).if the perimeter is not to exceed (150m), find the maximum possible width of the enclosure.

**Math**

The figure below are similar (their rectangles) find The value of x. Skinny rectangle has 2 on the top, and it has 4 on the side. Bigger rectangle it's side ways, it has 8 on the top and x on the side

**math**

One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again

**Algebra 1 HELP!!**

4n=28n-3 i have to solve for n Move the letters to one side and the numbers to the other. Change sign when doing so. 4n-28n=-3 Combine terms. -24n=-3 Multiply everything by -1 24n=3 Now divide both sides by 24 24n/24 = 3/24 n=1/8 I hope this helps. What would be the missing ...

**Geometry**

1. What is the base and the height of the rectangle if the area is 216 and the perimeter is 66? 2.The perimeter of an isosceles trapezoid is 40 ft. Thr bases of the trapezoid are 11ft and 19 ft. Find the area of the trapezoid.

**algebra**

a student measures the height of a sign to be 2 meters. the shadow of the sign 3 meters. the student notices that at the same time nearby tree has a shadow of 15.6 meters. how tall is the tree? What equation would be used for this?

**Math**

2x^2+9x-5 is the area of a rectangle and one side of the rectangle is x+5, What is the other side of the rectangle? A volume of a cube is 15625cm cubed. What is the length from point A to B in the cube? Point A is on the front bottom right corner and point B is on the the ...

**chemistry**

if an acid spilled on a highway, what should be done to clean up the spill?

**physics**

A pendulum has a mass of 3-kg, a length of 2 meters and swings through a (half)arc of 27.3 degrees. What is its Amplitude to the nearest centimeter ?

**science**

a ______ is the main unit of measure in the metric system a)millimeter b)kilometer c)centimeter d)meter e) none of the above d

**Physics**

A pendulum has a mass of 2.7 kg, a length of 1.7 meters, and swings through a (half)arc of 22.7 degrees. What is its amplitude to the nearest centimeter?

**physics**

A pendulum has a mass of 3.6 kg, a length of 2.1 meters, and swings through a (half)arc of 26.2 degrees. What is its amplitude to the nearest centimeter?

**Physics**

A pendulum has a mass of 3.2 kg, a length of 2 meters and swings through a (half)arc of 28.1 degrees. What is its amplitude to the nearest centimeter?

**geometric**

Which metric unit can use to mass of a grasshopper. A)centimeter. B)meter. C)gram. My answer is ( C ). Can you tell me it's correct please.

**MATH**

The exterior angle of a regular polygon is the angle formed by an extended side and the adjacent side. a)what is the measure of each interior angel of a regular pentagon. (There is apicture on the page and each side measures 21mm) Help please.

**Trigonometry - Geometry - side lengths**

In convex quadrilateral ABCD, angle A is congruent to angle C, AB=CD=180, and AD is not equal to BC. The perimeter of ABCD is 640. Find cos A. Hmm...I drew the diagram, and labeled some things, I drew an altitude from D to AB and did some other things, but no success was ...

**Perimeter and area**

The gadget comes with a page of instructions. When page is unfolded, it is 81 square inches. If one page is nine inches wide what is the perimeter?

**MTH208**

The perimeter of a rectangle equals the sum of the lengths of its four sides. If the width of a rectangle is 3 inches and its perimeter is 42 inches, find the length of the rectangle

**algebra**

The perimeter of a rectangle equlas the sum of the lengths of its four sides. If the width of a rectangle is 7 inches and its perimeter is 46 inches, find the length of the rectangle

**algebra**

The perimeter of a rectangle equals the sume of the lengths of its four sides. If the width of a rectangle is 9 inches and its perimeter is 52 inches, find the length of the rectangle.

**math**

the perimeter of two square are 848cm and 436cm find the perimeter of square whose area is equal to the sum of areas of two square.

**chem**

why is H+ a proton h+ would be a proton because it has a positive electric charge,just as all protons have to be positive. im just beginning to stdy this so take my answer and search it before you write anything down, but im pretty sure its right. Yeah, you are right. Anything...

**math**

If the adjacent vertices of a square ABCD are A ( -2 , 0 ) , find - The equation of the two diagonals AC and BD - The point of intersection O of the two diagonals AC and BD - The equation of the altitude from O to the side CD - The centroid of the triangle OCD by finding any ...

**geometry**

Suppose the dimensions of a rectangle with a perimeter of 21 inches are doubled. What is the perimeter of the new rectangle in inches?

**Algebra 1**

Write an equation for for each translation of y=|x| 1. left 2 units y = |x| consists of two 45 degree curves joined at the origin: y = x for x>0, and y = -x for x < 0. To move the curves to the left 2 units, you want the sign of the term inside the absolute value sign to...

**Geometry-PSSA Practice**

Which of the following quadrilaterals must have diagonals that bisect each other? Rectangle Parallelogram Rhombus Isosceles Trapezoid

**solid mensuration**

The base of a right prism is a rhombus whose sides are 20cm and the shorter diagonal is 24in..find the area pls.

**Math solid mensurations**

rhombus ABCD has diagonals that intersect at E. DF is drawn perpendicular to DC and AD at D. With AB = 10cm, <BCD = 60 degrees and FD = 4cm, Find the length of FE

**Math**

The area of a rhombus is 60cmsq. If one of its diagonl is 16cm.find the other diagonal. Plz gve ful sltn nd ans is 7.5m

**Math-Trig**

Answer to four significant figures, or to the nearest minute. f) one vertex angle of a rhombus is 25°. Find the ratio of the diagonals.

**Math**

Abigail Adventuresome took a shortcut along the diagonal of a rectangular field and saved a distance equal to 1/3 the length of the longer side.Find the retio of the length of the shorter side of the rectangle to that of the longer side.

**mathematics (word problems leading to linear equations )**

The side of one square is 5cm longer than the side of another square. The area of the two squares differ by 85 square centimetres. find the length of the side of the smaller square.

**math**

Highway engineers often use quadratic functions to model safe distance for cars. For example, f(x)= 1/2 x^2 + 4/5x is sometimes used to model the stopping distance for a car traveling at X miles per hour on dry, level pavement. If a driver can see only 200 ft ahead on a ...

**math**

Prove this identity (cos è - 1) / (cos^2 è) = sec è - sec^2 è I have a question when you simplify the secant in terms of cosine. Would you cross multiply but then again there's the subtraction sign there instead of a multiplication sign? then would you multiply by the lcd ...

**perimeter**

how to draw a 15 cm and 9 cm perimeter

**Science, Chemistry**

Hess's law ____. A) makes it possible to calculate ΔH for complicated chemical reactions B) states that when you reverse a chemical equation, the sign of ΔH does not change. C) determines the way a calorimeter works D) describes the vaporization of solids Highly ...

**Geometry**

Can some one please check these for me.Thanks Angle DEF is similar to Angle HJK and the scale factor of angle DEF to anle HJK IS 5/2. If EF =15 FIND JK Here is what I came up with Am I correct 5/2 = EF/JK 5/2 =15/JK 5(JK)=30 JK=30/5 JK=6 Given: ABCD is a parallelogram; <1 ...

**Trigonometry**

4. An observer is near a river and wants to calculate the distance across the river. He measures the angle between his observations of two points on the shore, one on his side and one on the other side, to be 28º. The distance between him and the point on his side of the ...

**Physics**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of + 6400 m/s, while rocket B has an initial velocity of + 9800 m/s. After a time t both rockets are again side by side, the displacement ...

**Phyics**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +5800 m/s, while rocket B has an initial velocity of +9100 m/s. After a time t both rockets are again side by side, the displacement of...

**physics 1**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +6700 m/s, while rocket B has an initial velocity of +9700 m/s. After a time t both rockets are again side by side, the displacement of...

**physics**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +4100 m/s, while rocket B has an initial velocity of +9400 m/s. After a time t both rockets are again side by side, the displacement of...

**Physics**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +4800 m/s, while rocket B has an initial velocity of +9000 m/s. After a time t both rockets are again side by side, the displacement of...

**trig**

use an inverse trig function to write è as a function of x (There is a right triangle. The hypotenuse is 2. è is the angle between the base and the hypotenuse. The base/adjacent side of è is (x + 1) The side opposite è does not have a value.) a) è = sqrt [4 - (x + 1)^2] ...

**Algebra**

The perimeter of a rectangle equals the sum of its lengths of its 4 sides. If the width of a rectangle is 4 inches and its perimeter is 38 inches, find the length of the rectangle.

**algebra**

The perimeter of a square is 12cm greater than that of another square. It's area exceeds the area of the other by 39cm^2. Find the perimeter of each square. I don't get how to set this up.

**7th grade math**

Can you help with geometry? 1. Sally constructs a triangle with one side 6 inches long and another side 8 inches long. What is the 3rd side? (haven't learned Pythagorean theorem) Ans: 6 + x > 8 x > 2 6 + 8 > x 14 > x 8 + x > 6 x > -2 so, x must be > 2, but...

**grade 3 math**

1) what is the greates perimeter of a rectangle with an area of 39 square feet? 2) What is the least perimeter of a rectangle with an area of 32 square feet? 3) A rectangle has an area of 42 square inches. Which has a greater perimeter, the rectangle with the dimensions 21 x2 ...

**calculus**

proponents of the peak oil theory claim that worldwide production of petroleum will soon reach a maximum and start to decline. (there is considerable debate about how soon this will occur) let P(t)= the world's rate of petroleum production t years after 2000. let T be the date...

**Sign Language**

Hi I would like for my answers to be checked for these two questions (Note: I'm not sure if the 2nd one is correct): 1. Several school-related words are based on which sign? a. book b. learn c. school d. study My Answer: book 2. How do you change a statement in American Sign ...

**geometry**

The lengths of the sides of a rectangle become 4 times greater than the original measurements. Which statement is true about the rectangle? A. Its area becomes 4 times greater, and perimeter becomes 16 times greater. B. Its area becomes 16 times greater, and perimeter becomes ...

**Finance**

When a company’s executives purchase securities of their company and disclose it to the public: A) It is considered illegal B) This strategy is considered a Flight to Quality C) The market does not react D) It is generally seen as a positive sign for the company E) It is ...

**college**

A car weighing 15,000 N is speeding down the highway at 90 km/h. What is its momentum?

**science**

what units would you use to measure the speed of a car on the highway?

**math**

A section of the highway rises 15 feet in a mile, calculate the grade.

**social studies**

which two cities of nepal are connected by siddhartha highway?

**math**

find the cost of cementing a driveway that is 900 cm wide by 1600cm long by 3 cm thick. The price per cubic centimeter is $5.20.

**math**

choose an appropriate mertic unit for the mass of a paper clip A.meter b.gram c.kiogram. or d.centimeter hel please!!!!!!

**Trigonometry**

Determine the circumference of a circle with 7.4 centimeter radius. (Use 3.14 ) Im not trying to get this completely answered. I just need help with what to do first. Thank you so much.

**physics**

To say a substance is electrically polarized is to say that its net charge is ____________________. A) either negative or positive, but relatively weak.B) weakly positive in sign.C) None of these.D) is normally zero with opposite charges on opposite ends.E) weakly negative in ...

**Math**

The perimeter of rectangle Z is equal to its area.Rectangle Y has the same perimeter as rectangle Z.The length of rectangle Y is 5 inches and width of rectangle Z.

**Sign Language**

Deaf Music is music played by Deaf musicians only*** is music by hearing artists about Deaf people is music interpreted into American Sign Language expresses what being Deaf means