1. geometry

Pllllleeeaaasssssssseeeee help me with this math fast! a. Find x. The figure is not drawn to scale. b. Is the triangle equilateral, isosceles, or scalene? Explain. Image at imgur . com / 6y2f9a3

2. math

Represent the above relationship between the number of triangles and the perimeter of Of the figures they form by filling in the table below. Perimeter = a + b + c Number of Triangles Perimeter 1 6 + 6 + 5 = 17 2 3 .

3. Chemistry

Write a procedure to demonstrate the effect of higher concentrations of HCl on its rate of reaction with antacid tablets. I have HCl with a concentration of 1.0 mol/L. This is what I have so far. Are my concentrations correct for this procedure? E is my

58. Math calculus

The altitude of a triangle is increasing at a rate of 1000 centimeters/minute while the area of the triangle is increasing at a rate of 1500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7000 centimeters

59. Geometry

Find the volume of a rectangular box. The faces have areas of 15, 25, and 60.

Let A=a1,a2,…,ak and B=b1,b2,…,bj be sequences of positive integers such that a1≥a2≥⋯ak≥1, b1≥b2≥⋯bj≥1, ∑i=1k ai≤6, and ∑j i=1 bi≤6. For how many ordered pairs of sequences (A,B) satisfying the above conditions can we find a

61. chemistry

(a)how much energy in KJ/mol is released when an electron makes a transition from n=5 to n=2 in a hydrogen atom?

62. MATH URGENT HELP

In the expression -7x-3x^2+5 what is the coefficient of x? i don't understand what does coefficient is can you help?

70. American History

Following the Spanish -American War. and espeacially in regard to American occupation of the philippines, most anti-imperialists argued that... A. The occupation would lead to unhealthy racial-mixing. B. Because all war was immoral, the fruits of war were

71. math

If each cup of unpopped kernels makes 3 cups of popped corn, how many quarts of popped corn will a 16 ounce of kernels make? Please help me.

72. english

Please don't just give me the answer, because I won't learn that way. I am home schooled, and my parents are at work during the day. 9. Which sentence corrects the following sentence? The final decision must be made by Ellen and he. (1 point) A. The final

73. Math

3) Find the area bounded by the curves f(x)= x^3 + x^2 and g(x)= 2x^2 + 2x. I get 4653pi/105 after help from Mr. Reiny, but this is wrong. Have I calculated incorrectly? Thank you

83. PHYSICS SATELLITE PROBLEM

A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!

84. life orientation

Sources of environmental health

86. physics

A 1.6 N loop of wire is hung in a magnetic field as shown. If the spring scale reads 0.60 N when a current of 1.0 A passes through the loop what is the magnitude and direction of the magnetic field?

87. Statistics

The mean and median sales prices of new homes sold in the U.S. in November 2010 were $213,000 and$268,000. Which of these numbers is the mean and which is the median? Explain how you know. I'm assuming the median is $213,000 and the mean is$268,000.

How many pairs of positive integers (a,b), where a≤b satisfy 1/a+1/b=1/50?

133. Chemistry

Do alloys have the same properties as their individual elements?

A bag contains 5 red,2 blue,and 4 white marbles. What is the probabiltiy If Sam picked a red marble replaced it and picked a white marble?

135. Math (Algebra)

If the ratio of the roots of the quadratic equation x^2−28x+A=0 is 2:5, what is the product of the roots of the quadratic equation x^2+Ax+2A+3=0?

136. Chemistry

What is the normality of a solution which contains 4.03-g of sodium carbonate in 300.-mL of solution?

137. LIFE ORIENTATION

Discuss 5 ways in which the Teenage Pregnancy problem impacts on the community.Provide relevant sources to support your claims.

138. maths

ABCD is a rectangle with AB=50 and BC=120. E is a point on CD (possibly extended) such that AE=EC. What is the length of DE?

139. math

Triangles ABC and DEF are similar. The similarity ratio of to is , AB = 40, BC = 25, and AC = 35. What is the perimeter of ?

140. math

what percent of 30 is 40?

141. math

how many diagnals does an octagon have?

142. health

At what age does exercise begin to result in strength in boys and girls

143. Frenchhhhhhhhhh

Please help! I have to replace 1- avez-vous eu DES CADEAUX pour votre anniversaire? 2- tu as des COURS DE FRANÇAIS tous les jours? 3-elles ont beaucoup D'AMIS au collége??

144. Chemistry

What is the mass of a sample of acetylene gas (C2H2)that contains 4.44 x 1034 atoms of carbon? Also, Im not sure how to convert from moles of C to moles of C2H2.

145. Psychology

Young adults in their early twenties spend: A. ten percent of their total sleep in stage 1. B. 20 percent of their total sleep in stage 2. C. half of their total sleep in stage 2. D. half of their total sleep in stage 3. Answer C

146. precalc

partial decomposition 12/x(x-2)(x+3)

147. algebra

1. For the given function f and g find the folowing and state the domain of each result f(x)=2x+1;g(x)=7x-1 a) (f-g)(x)=_____ (f/g)(X)=_____

148. Hisory

Why is the Benghazi Attack such a controversy? I need to answer this in a few sentences which I am having a hard time doing. I wrote my paper but I can't seem to summarize it.

149. English

1. There are many fluorescent lights on the ceiling. 2. There are many fluorescent lamps on the ceiling. 3. There are many fluorescent light bulbs on the ceiling. (Which expressions are right? Which one is commonly used? Thank you.)

Good writing costs companies money and these costs increase significantly if the communication is ineffective. Which of the following pairs would NOT be two additional costs to the company if written communication is poor? A. Paper and wasted time B.

151. science

CH4 + O2CO2 + 2H2O

153. economics

The Milwaukee Brewers are playing their archrival Chicago Cubs. Bleacher tickets for the game were sold out and many fans would have attend if tickets were availiable. 1. Draw the demand and supply lines for bleacher tickets for this game. Label the

154. sonogram physics

How much time is required to image a structure at 5cm.?

155. social studies

Payment to workers, his dependents,and/ or survivorsin the event of retirement, disabilityor death are generally covered by the system of insurance known as ?

156. physics

You are travelling in your 2000 kg car at 12.5 m/s and wish to accelerate to 17.3 m/s in 4.28 seconds, how much work, to the nearest joule, is required? -------------------------------------------------------------------------------- 4 In the previous

157. Computers

Which of the following operating system types is used in medical equipment or a cash register? A. Multi-user/multi-tasking B. Real-time C. Single-user/multi-tasking D. Single-user/single-tasking

158. To Math Helpers please:Math 2 questions

I'll retype it, Ive been waiting forever and i just need someone to do these 2 questions so that i can continue doing my other ones so can someone do them: I need help with 2 questions so that I could do my other ones myself so can someone please do these

159. English

Homework Help: English Posted by rfvv on Wednesday, May 22, 2013 at 8:22pm. 1. There are works of art on the buletinboard at the back. 2. There are five works of art on the bulletinboard in the back. 3. There are many tables and chairs in the English

160. social studies

are there people currently who consider rosa parks a bad woman?

161. L.O

Community organizations in S.A that are involved in giving redress to disasters

162. english

we cannot have a peaceful and just society so long as any one group is required to be (responsive, submissive) to another. submissive

A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!

164. PHYSICS FINAL (orbital)

A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!

165. Chemistry

What happens if you add more solute to a saturated solution?

166. Science

How often must a tractor be serviced?

The erosive energy of rivers alters landscapes over periods of millions of years. Which of the following increases a river's rate of erosion? A)low gradient B)high discharge C)small load D)decreased speed

168. history

which popular company recently became public and is traded on the NASDAQ?

169. Math

Sam is making 3 picture frames with dimensions seven and seven-eights and five and three quarters. What length of wood does he need for all 3 picture frames? Please answer as soon as possible; need it for tomorrow. Thanks

170. englis

having problems with a "gerund" worksheet

171. Calculus

3) Find the area bounded by the curves f(x)= x^3 + x^2 and g(x)= 2x^2 + 2x. I get 4653pi/105 after help from Mr. Reiny, but this is wrong. Have I calculated incorrectly? Thank you

172. Math Models

The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability that a score is more than 890. This is from my Math Models class. I am not taking Statistics. Please someone show me how to do

173. English

1. A book is/lays open on the blanket on the bed. 2. There is an open book on the blanket on the bed. 3. There are some books on the shelf on the wall. (Are they grammatical? Would you check them? Thank you.)

Alex and Bella play the following game. They first choose a positive integer N, and take turns writing numbers on a blackboard. Alex starts first, and writes the number 1. After that, if the number k is on the board, the next player may write down either

175. Math (Algebra)

For real numbers a and b, if f(x)=x^2−ax+b satisfies f(5+7i)=2a, what is the product of the two roots of the equation f(x)=0?

176. BIOLOGY!!!!!!

What is the reletive amounts of mRNA that will e transcribed if there is no promoter and enhancer?

177. math URGENT thx

what is the rule? x 5 7 9 11 y 1 1.6 1.8 2.2

178. math

Logarithm 3^3x+1=3^5x-2 3^3x+1-3^5x-2=0 Log(3^3x+1-3^5x-2)=log0 Please explain to me why is the last step is wrong

179. maths

a, b, c, A and C are real numbers that satisfy the equation (ax2+bx+c)2=Ax4+16x3+28x2+24x+C How many possible ordered triples of (a,b,c) are there?

180. maths

Let ABCD be a rectangle such that AB=5 and BC=12. There exist two distinct points X1 and X2 on BC such that ∠AX1D=∠AX2D=90∘. Suppose that d is the distance from X1 to X2. What is d2?

181. maths

ABCD is a parallelogram. E is a point on DC extended, such that D and E are on opposite sides of BC. Let AE intersect BC and BD at F and G, respectively. If AG=180 and FG=108, what is EF?

182. maths

Let ABCD be a rectangle such that AB=5 and BC=12. There exist two distinct points X1 and X2 on BC such that ∠AX1D=∠AX2D=90∘. Suppose that d is the distance from X1 to X2. What is d2?

183. maths

simon buys box of 10 balloons for 2 dollars each . he then sells each balloon for 22 cent. what percentage does he make?

184. math

a jet travels at 435.6 miles per hour. how far will it travel in 6.75 hours?

185. math

24 ÷ 6 ( 2 + 2 )= ?

186. Chemistry

The volume of a gas sample is 200 L at 740 torr. What is its volume at 760 torr?

187. Pre-calc

The plane y + 4z = 15 intersect which axes?

188. math master help plzzzzzzzzzzzzzz

what comes next in the sequence 6,12,20,32,52,88,156

189. economics

am i right? don't want to hand in wrong homework again, my mom will kill me A research firm calculated that students who attend University spend about $2,760 each in the local economy for a total of$50.45 million. In total, the impact of their spending on

190. Chemistry

The volume of a gas sample is 200 L at 740 torr. What is its volume at 760 torr?

191. Psychology

Uncle Billy fell asleep in front of the television again. Five minutes later a noise from the kitchen awakened him. He sat up looking a bit dazed and explained, "I was having something like a dream. I saw my first bicycle, Old Blue, just as bright and

192. algebra

what is the slope of the line perpendicular to y=2/5x+7

193. English

Q: What is the box where dustpans and brooms are kept in a classroom called in English?