# Questions Asked onJuly 22, 2015

1. ## math

Missi designed a stained glass window and made a scale drawing using centimeters as the unit of measurement. She originally planned for the length of the window to be 44 in. but decided to change it to 48 in. If the length of the window in her scale

2. ## chem

How many moles of O2 contained in 5.25L of a gas at 26 degrees C and 1.2 atm?

3. ## College Algebra

f(x) = x2 + 11x, x ≥ − 11/2 find the inverse

4. ## College Algebra

A function f has the following verbal description: "Multiply by 5, add 9, and then take the fifth power of the result." and find the inverse?

8. ## math

Points $D$, $E$, and $F$ are the midpoints of sides $\overline{BC}$, $\overline{CA}$, and $\overline{AB}$, respectively, of $\triangle ABC$. Points $X$, $Y$, and $Z$ are the midpoints of $\overline{EF}$, $\overline{FD}$, and $\overline{DE}$, respectively.

9. ## Math

Two towns A and B are to get their water supply from the same pumping station to be located on the bank of a straight river that is 15 km from town A and 10 km from town B. If the points on the river nearest to A and B are 20 km apart and A and B are on

10. ## Math

What is the greatest common factor that can be removed from: 15x^35 - 18x^28 + 27x^12?

11. ## calculus

find volumes of solids generated by revolving the regions bounded by the graphs of the equations about the given lines. y=square root of x y=0 x=3

12. ## ALGEBRA

A car travels 20 kph faster than a truck. The car covers 350 km in two hours less than the time it takes the truck to travel the same distance. What is the speed of the car? How about the truck?

13. ## Statistics

The Tyco Video Game Corporation finds that it is losing income because of slugs used in its video games. The machines must be adjusted to accept coins only if they fall within set limits. In order to set hose limits, the mean weight of quarters in

14. ## English grammar

Select all the statements that apply to the sentence below. She did not believe that he actually knew the rules of bowling. -The sentence contains a gerund.

15. ## chemistry

5.85gm of NaCl is dissolved in water and the solution is made up to 0.5 litre. what is the molarity of solution ????

16. ## English grammar

Identify the verbal in this sentence as infinitive, gerund or participle. They cried, but there was none to save them: even unto the LORD, but he answered them not. (Psalm 8:41) I chose infinitive because "to save them" looks like an infinitive that

17. ## math

Yuron is sketching a scale drawing of a famous painting. The painting is 54 inches wide and 72 inches long. He used a scale factor of 2/3 to make his sketch. How many inches wide is Yuron’s sketch?

25. ## Math

6x^2 - 7x - 5 is factored to (3x - 5)(2x + b). What is the value of b?

26. ## Math grade 11 u

Jose bautista hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic function in which x is the Horizontal distance the ball has travelled away from jose, and h(x) is the height Vertical distance of the

27. ## Calculus

Givenƒ(x) = ex, verify that lim h->0 (e^x+h - e^h)/h + e^x and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)

28. ## College Alg

Graph the polynomial in the given viewing rectangle. Find the coordinates of all local extrema. State each answer correct to two decimal places. (If an answer does not exist, enter DNE.) y = 2x3 − 3x2 − 12x − 32, [ −5, 5] by [−60, 30] find

29. ## Urgent math

A quadratic function is given. f(x) = x2 − 8x + 8 (a) Express the quadratic function in standard form.

30. ## math

use sigma notation to write the maclaurin series for the function 1/(1+x)

31. ## English grammar

Identify the verbal in this sentence as infinitive, gerund or participle. The old woman slept, not realizing she was no longer poor. I'm not sure if this is a gerund or a participle. "Not realizing" seems to be describing the old woman. I can't see how it

32. ## math

A box contains 5 red bowls, 6 yellow bowls and 3 white bowls. If 4 bowls are randomly drawn from the box at the same time, (a)find the probability that exactly 2 red bowls are drawn; (b)find the probability that at least 2 red bowls are drawn. My work: (a)

33. ## maths

the third term of A.p is 12 while the seventh term is 72 find (1)common differences (2) first term (3) find the sixth term

34. ## french

Paris? La Côte d'Azur? Monaco? Planifiez un voyage à ces destinations. Cherchez un hôtel (l'adresse aussi), un restaurant (l'adresse aussi) où vous mangerez et 3 sites touristiques vous visiterez. Faites le travail en forme d'un tableau (chart). I

35. ## Math Check

Is the following statement true: (x^4+6x^2+9)=x^2+3

36. ## Physics Momentum: Elastic Collision

The carbon isotope 14C is used for carbon dating of objects. A 14C nucleus can change into a different kind of element, a neighbor on the periodic table with lower mass, by emitting a beta particle – an electron or positron – plus a neutrino or an

37. ## math

The number ? could be the sum of three consecutive integers. A. 0 B. 2 C. 4 D. 8

38. ## math

If the product of 1999 real numbers is -1998, at least how many of these 1999 real numbers must be negative? A. none B. 1 C. 1997 D. 1998

39. ## math

In a recent Math Duel, my team began by graphing 51x+24+75. If our opponents graphed a line parallel to ours, they might have graphed A. 17x+16y=25 B. 17x+8y=50 C. 34x+8y+50 D. 34x+16y=50

40. ## Math

There were 256 people at a fundraiser. When the event was over, half of the people who remained left every 5 minutes. How long after the event ended did the last person leave?

41. ## Physics

An example of an elastic collision is The gravitational slingshot effect . A spacefship of mass 850 kg is moving at 9.5 km/s in the +x direction. It approaches the planet Saturn, mass 5.68 x10 26kg , which is moving in the –x- direction as shown in the

42. ## calculus

A cylindrical tank is to have a capacity of 1000 m³. It is to fit into a foundry that is 12 m wide with a height of 11 m. The base of the tank will cost half as much as the top. The metal for the side of the tank will cost four fifths as much as the top.

78. ## Algebra

The length of a rectangle is two meters less than twice the width. If the area of the rectangle is 222 square meters, find the dimensions

79. ## french

A question about Les mots negatifs usuels... how would i write the negative for example A-t-elle des freres et des soeurs.. i know i would use ne..ni...ni And also the same for Ont-ils beaucoup travaille I think for the first on i would put ni in replace