# Questions Asked onAugust 31, 2015

1. ## math

Find f(g(x)) where f(x) = 2/x and g(x) = 4x+2 I got till 2/(4x+2) but am not sure where to go from there. Please help!

2. ## math

If you have to find f(t)g(t) where f(x) = 2/x and g(x) = 4x+2 I got 2/t times 4t+2 and then from that I got 8t+4/t. How do I simplify that further?

3. ## Physics

a 72 kg man on roller skates, initially at rest, fires a pistol due west. if the 35 g bullet travels at 270 m/s, find the velocity (including direction) of the man.

5. ## math

a yeast grows at a rate proportional to its present size, if the orinally amount doubles in two hours, in how many hours will it triple?

6. ## c++ programming

Write a C++ program for an amusement park to display the bill for the cashier. The pricing schedule is as follows: Category Price Children $10.00 each Adults$ 20.50 each

7. ## physics

two trains are moving towards each other with velocitied u1 and u2 see that the distance between them is x.the condition for them to not collide is

8. ## biochem

The pKa of butanoic acid is 4.87. A student mixes 120 mL of 0.45 M butanoic acid with 50 mL of 0.3 M NaOH and adds water to give a final volume of 1 L. What is the pH of the final solution? Please show you work.

9. ## social studies (history day project)

Before I introduce my assignment and what I need to do, I tried my best copying off from the instructions given and it's long, obviously. (and I may have some errors but please excuse those) I have another page of directions, but it will be short. Oh and

10. ## Physics

A 60-kg soccer player kicks a stationary 0.4 kg ball giving it a speed of 14 m/s. The player's foot is in contact with the ball for 0.08 second. What is the average force on the ball?

11. ## Physics

A 50 kg ice hockey player standing on a frictionless ice surface throws a ball, mass of 5.0 kg horizontally with a speed of 3.0 m/s. With what speed will the player recoil? • What formula/s should I use?

12. ## Physics

A body falls freely from rest for a 6sec find the distance traveled in the last 6sec.

13. ## physics

A 2000-kg car starts from rest and gains a velocity of 20 m/s in 5 /0s. What force was applied on it? What formula/s will I use?!

14. ## chemistry

100g of stea initial at 100 degree celcius is passed through a calorimeter containing 1kg of water at 20 degree celcius. Assuming no heat loose and negligible heat capacity of the calorimeter, calculate the final temperature of the calorimeter and the

15. ## Physics

What is the momentum of a 54 kg ball just before it hits the ground when it is dropped from a height of 1.4m? What formulas should I use?!

16. ## Physics

A body w/ initial speed of 3m/s from which constant acceleration of m/s. A.)what is the speed covered in 1minute to acceleration? B.) what is the distance covered in 1minute?

17. ## Physics

A uniform of 100N pipe is use as a lever. When must the fulcrum (supported point) be placed if a 500N weight at one end to balance a 200N weight at the other end? How much load must support (S) hold?

18. ## Physics

From what height must water fall from a dam to strike the margine waves w/ a speed 30m/s.

19. ## physic

A 1.2-kilogram basketball travelling at 7.5 meters per second hits the back of a 12-kilogram wagon and bounces off a 3.8 meters per second, sending wagon off in the original direction of travel of the ball. How fast is the wagon going?

math

21. ## Algebra

1.What is the simplified form of the following expression? 13[6^2€(5^2-4^2)+9] A.169 B.585*** C.181 D.26 2.What is the simplified form of the expression? 6xyz/2xz A.3 B.3y C.3xyz*** D.3x^2yz^2 3.In a football game. A running back ran for -7 and -5 on

22. ## life orientation

Four environmental issues that causes it ill-health?

106. ## Grammar

Can we go to the movies later this evening compound or simple sentence

107. ## s. economics

Brooke and Georgia are neighbors. Each have 40 hours per week. Brooke needs 5 hours to paint a beautiful picture and 2 hours to make a picture frame. Georgia takes 8 hours to paint an equally beautiful picture and 4 hours to make a picture frame. What two

108. ## Math

Katie said, "negative numbers are integers." What was her error?

109. ## Calculus

A 6 feet tall man walks away from a streetlight that is 15 feet high at a rate of 5 ft/s. Express the length 's' of his shadow as a function of time. What I have so far: I set up a triangle and used similar triangles to create a ratio (6/s) = (s/d+s) s =

110. ## Anonymous dddd

Translate the proposition below into explicit conditional. Identify Given and Conclusion. Humans are mammals. Given: Conclusion: I think that the given part is "If human are mammals," and the conclusion part is "then mammals are humans." An example of what

111. ## math

In the city , the monthly high temperature for July is 88°F. The record monthly low temperature is 30°F .what is the range of temperature for July?

112. ## English

Independent of compound clause she got a hot dog you got a hamburger and she got a salad

113. ## Math

Write each number sentence as a equation x is less or equal to 18 X=18 X

114. ## Quick English check

Can someone check that I put these words in the right spot of where they need to go? Please correct me if I'm wrong! :) In the 1950s in Europe, to BROACH such a controversial subject as the Algerian separatist movement in a public forum was assured to

115. ## Art

Do all art paintings have culture in the paintings

116. ## math

A pool must be 25 meters long and 3 meters deep and the room is only 10 meters wide can u still build a pool that will hold 800 cubic meters of water and why

117. ## Math

What is the circumference of a circle with a point at the center located at (7,5) and a point of the edge (7,12)? Tell me how you can find the answer!

118. ## Quick English check

Please check to see if I have these words in the correct sentences. Correct me if I'm wrong! :) 1. The defendants attorney objected to the plaintiff's ASSERTION, claiming it was hearsay. 2. The news media PROMULGATED the results of the election. 3. I tried

119. ## Pre-Calculus

Write an equation to fit the description. 0° Celsius = 32° Fahrenheit. 100°C = 212°F. (Let x = degrees Celsius and y=degrees Fahrenheit.) y=9/5x+32 Is this correct?

120. ## math

660/60 = ft/s

121. ## Algebra

Write a linear equation to fit each situation. 1) A medical laboratory charges $30 for a consultation and an additional$10 per test. (Let t = the # of test, f(t) = the total fee.) Answer: f(t)=30+10t 2) A 150 kg man goes on a diet and loses 1.4 kg/week.

122. ## Chemistry

Suppose that 2.091x10^-18 J is absorbed by the electron of a hydrogen atom in the n=1 energy state. Describe the final energy state of the atom.

123. ## Math

I need help on my math the question is make up a set of at least 12 numbers that have the following landmarks with maximum:8 range:6 mode:6 median:5 can you help me solve this equation

124. ## math

Bob enlarged the size of a photo to a width of 18 inches. What is the new height if it was originally 6 inches tall and 4 inches wide?

125. ## Algebra 2

I need step by step on how to solve this problem plz help I've been trying to figure it out for like an hour. Solve the system using the elimination method. 4x-y+2z=-18 -x+2y+z=11 3x+3y-4z=44

126. ## Chemistry

Calculate the density of an unknown sample of metal given that a 2.3504 gram sample of metal causes the water level in a graduated cylinder to rise from 33.5 ml to 35.2 ml. Show work

127. ## Science

Patrick and Spongebob love to blow bubbles! The ads claim that Super Bubble soap will produce bubbles that are twice as big as regular bubble solution. Sample is made with 5 oz of Super Bubble soap and 5 oz of water, while the other is made with the same

128. ## Math

What am I? I am a decimal fraction with three digits I am bigger than half of 6 I am smaller than double 2 All my digits are odd When you add my digits you get 15

129. ## Chem

A 150-lb person burns about 2700 Calories to run a marathon. How much energy is burned in kJ?

130. ## Algebra

solve this (-1 2/3)/(-2 1/2) I know the end result is 2/3 but how do I get there? Please help

131. ## Algebra 2

a car travels for 2 hours at r mph and then decreases its speed by 5mph for the next 3 hours. What is total time traveled?

132. ## Math 100

ed moura has \$11000 invested in 6%. how much additional money should he invest in certificates of deposit paying 3% so that the average return on the two investments is 4%

133. ## Math

I am a 4-digit even number. I am less than 2500. The digits in my hundreds and the tens place is different. The digits in my hundreds place are less than the digits in the one thousands place. The sum of my last 2-digits equal 9. I am _?

134. ## Math

A banquet hall has 22 tables for 4 and 15 tables for 6 ,but 3 chairs are missing from the tables .How many many chairs will there be if 134 are seated

135. ## Algebra

Write the word phrase as an algebraic equation The ratio of 16 to x

136. ## math

What number is one million greater than 337,676

137. ## genetics

We have dealt mainly with only two genes, but the same principles hold for more than two genes. Consider the following cross: A/a ; B/b ; C/c ; D/d ; E/e × a/a ; B/b; c/c ; D/d ; e/e a. What proportion of progeny will phenotypically resemble (1) the first

138. ## Algebra

Write a algebraic equation Ron is 10 years younger than maria. If maria is 'n' years old, how old is Ron

139. ## Physics

Jonathan walks up stairs that are inclined at 25 degrees to the horizontal and 10m long. A.How far has he moved vertically? B.How far has he moved horizontally?

140. ## Math

Make alast of possible out comes... my hundreds place number is greater than 7 and my tenths place number is 1 greater than my hundreds number and my ones place number is less than 2

141. ## Geometry

On Line ABCDE If BD exceeds CD by 10 and If BD=x^2 and CD = x + 4, compute x. I tried: BD = CD + 10 X^2 = (x+4)+10 x^2 = x+14 That's where I get stuck. Do I convert to: x^2 - x -14 = 0 ? If so, how do I solve for x? Thank you in advance for any assistance!

142. ## Physics

an empty truck weighs 4000N its engine can produce an accelerationof 1m/sif the truck is loaded with 2000N, find the acceleration the engine can prodeuce?

143. ## Math

The definition of the derivative, applied to f(x) = 7^x, results in the formula f'(x) = k \cdot 7^x where k = lim of ((7^h-1)/(h) h approaches 0 The value of the constant k cannot be determined using the usual tricks for evaluating limits. Using your