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Questions (71)

ANGLE OF ELEVATION
1. 1 answer
2. 443 views
An example of homologous structures would be our front teeth and ___:a. the mandibles of a crab b. the mouthparts of a mosquito
1. 1 answer
2. 603 views
This same substance is a gas with a density of 1.25 g/L at 127oC and a pressure of 400 torr. What is its molar mass ?
1. 1 answer
2. 416 views
For f(x) = 3x + 4 and g(x) = x - 1. Calculate (f o g)(x).For f(x) = 3x + 2 and g(x) = x². Calculate (f o g)(-2). Consider the
1. 4 answers
2. 468 views
Question 1 of 20Why is microwave holographic imaging not being used as a security measure in U.S. airports? A. The cost is
1. 3 answers
2. 540 views
A BALL IS DROPPED (V=0) FROM A TOWER 7 M HIGH. HOW FAR WILL THE BALL HAVE FALLEN AFTER AA TIME T1=1 S, T2=2S AND T3 = 3S.
1. 1 answer
2. 382 views
Determine the pH of an HF solution with a 4.70x10^-2M and 2.20x10^-2M.I tried this by looking up the Ka and putting it over
1. 1 answer
2. 472 views
David and Mike are brothers. David is 33 years old today. This is three times as old as Mike was when David was the age that
1. 1 answer
2. 764 views
a hemisphere container is made with the following dimensions. the external diameter of the container is 12 cm. the internal
1. 0 answers
2. 709 views
a hemisphere container is made with the following dimensions. the external diameter of the container is 12 cm. the internal
1. 0 answers
2. 690 views
A car converts 1000 J of energy from a sample of fuel. 750 J of heat (thermal energy) is produced by the engine, 150 J of heat
1. 0 answers
2. 545 views
Helping grandson with math. I would like to know how to do it before he does."How many different rectangles can be made with a
1. 1 answer
2. 566 views
A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 12 in by 12 in by cutting out
1. 1 answer
2. 1,817 views
Find an expression for the function. Top half of the circle: x^2+(y-2)^2=4.
1. 1 answer
2. 1,757 views
A cylindrical can with both a top and bottom has the same surface area as a cube with edge 50mm. The height of the can if 6cm.
1. 0 answers
2. 453 views
Rank the following from most polar to least polar (aspirin, caffeine, ibuprofen, acetaminophen): I am getting
1. 0 answers
2. 583 views
Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval. cos x = x. How
1. 0 answers
2. 1,226 views
Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval. x^4+x-3=0,
1. 0 answers
2. 1,047 views
Use a graph to find a number delta such that if abs(x-pi/4) < delta then abs(tanx-1) < 0.2. I understand that the epsilon is
1. 0 answers
2. 863 views
Prove that lim (x->0) x^4 cos 2/x = 0.
1. 1 answer
2. 810 views
Answer check please: Consider the circle (x-3)^2 + (y+1)^2 = 169. The point (15,4) is on the circle. Find an equation for the
1. 2 answers
2. 555 views
An oil tank is the shape of an inverted right circular cone with the pointed end down. The tank is 15 feet tall and is 12 feet
1. 2 answers
2. 962 views
A truck tire with a diameter of 36 in is rolling over level ground spinning at 11 rotations/second. If the speed limit is 55
1. 1 answer
2. 449 views
An isosceles triangle has its vertex at the origin and the ends of its base on the parabola y=9-x^2. Express the area of the
1. 1 answer
2. 608 views
Jamal buys 59 stickers. Stickers come in packs of 5 or 8. How many packs of 5 stickers does Jamal buy? 8 stickers?
1. 2 answers
2. 587 views
Which of the following would be the most sigificant between mitosis and meiosis?A. Chromosomes are duplicated before mitosis B.
1. 1 answer
2. 1,088 views
Greta said that the product of two prime numbers must also be a prime number. Joan disagreed. Who is correct?
1. 7 answers
2. 3,776 views
There are 189 students in the band. The difference between the number of boys and the number of girls is 27. How many boys and
1. 3 answers
2. 703 views
Jun-Jee either ran 5 or 7 miles each day for 30 consecutive days. His total mileage during this period was 166>How many days did
1. 2 answers
2. 673 views
If there are 264 students in a school and there are 84 eighth graders and There are 22 fewer seventh graders than sixth graders.
1. 3 answers
2. 1,148 views
How would you write that line segment PK has equal length with line segment OQ?
1. 0 answers
2. 898 views
If FD=4x-27, and SG is congruent to FD and SG=2x-3, Then whais the length of SG?
1. 2 answers
2. 373 views
What addition property can you use to find the missing number?8+(6+5)=8+(5+_)
1. 2 answers
2. 879 views
I'm writing a paper about re-enlisting during the American Revolution, even though I'm miserable with the sick and dying all
1. 3 answers
2. 978 views
How would a communist economy react to social and technological changes? What is the role of nature in a communist economy?I
1. 0 answers
2. 418 views
A class has 12 students. In how many different ways can the students be put into lab groups consisting of 3 students in each
1. 2 answers
2. 1,838 views
I have to compare two amounts given in percent. Last year, 80% of a cafe's sales were coffee; this year only 20% of the cafe's
1. 1 answer
2. 510 views
A 726 kg car travels from Boone to Blowing Rock along US321. How much working is needed to keep the car traveling at a constant
1. 0 answers
2. 530 views
The equilibrium constant for a reaction was measured at several temperatures and the data plotted at right. The slope and
1. 0 answers
2. 601 views
A 100 amino acid folded protein (F) is in equilibrium with it’s unfolded (U) (ordenatured) form. Let ΔrH(std) =+347 kJ mol-1
1. 0 answers
2. 1,044 views
Calculate the standard reaction Gibbs energy of the oxidation of ammonia tonitric oxide according to the equation 4 NH3g) +
1. 0 answers
2. 715 views
Calculate the equilibrium constant (K) for the ammonia synthesis reaction at25°C and show how K is related to the partial
1. 1 answer
2. 1,007 views
If the ratio of onions to cilantro is 4:3 and I'm using 2/3 cup of onions, how much cilantro will I need?
1. 2 answers
2. 998 views
Fireworks are fired at an angle of 82degrees with the horizontal. They are expected to explode about 100 m in the air, 4.8 secs
1. 3 answers
2. 800 views
An artillery shell is fired with an initial velocity of 300 m/s at 65.0° above the horizontal. To clear an avalanche, it
1. 1 answer
2. 767 views
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. The cliff is h =
1. 1 answer
2. 1,085 views
What are the three most important points you think a group of people must keep in mind when working collaboratively on a writing
1. 1 answer
2. 443 views
I'm having trouble with reciprocal functions. If a graph of a reciprocal function is given, how do you find its equation? Any
1. 2 answers
2. 1,802 views
I need this question put into an equation. I have been working on this forever and cannot figure out! Please explain what you
1. 1 answer
2. 486 views
1. A famous scientist once said that wherever in the universe life exists, some of those life-forms must be colored. Why would
1. 2 answers
2. 865 views
can u please give me a site that will have a short but an informative article on the English Reformation? thnks
1. 1 answer
2. 515 views
If a ball is sliding along a frictionless horizontal surface is the total work being done on the ball zero? I think so because
1. 3 answers
2. 547 views
I don't know where to start with this one. "Find the work done accelerating a 2 kg box from 2m/s to 3 m/s." Can't find
1. 4 answers
2. 591 views
I have a follow-up to my question at 4:10 about work because I still can't figure it out.F-F(friction)=ma F-F(friction)=2*3
1. 2 answers
2. 447 views
Calculate the work done by the applied force accelerating a 2 kg object at 3 m/s/s over 4 m if there is a 2.5 frictional force
1. 3 answers
2. 556 views
I'm having a hard time with some free body diagrams. If you have a box on a slope/ramp and the angle of the ramp is X degrees
1. 3 answers
2. 522 views
I'm comparing the "g-force" of a rocket and a race car. My answer for the race car corresponds to the answer in the book but my
1. 2 answers
2. 439 views
Factor completely100r^2 + 160rt + 64t^2
1. 1 answer
2. 383 views
Find all numbers for which the rational expression is undefined.p^3 - 4p/P^2 - 4
1. 1 answer
2. 943 views
What does it mean to refer a 20-in television set or a 25-in TV? Such units refer to the diagonal of the screen. A 20-in set
1. 2 answers
2. 1,187 views
Jack usually mows his lawn in 4 hours. Marilyn can mow the same yard in 7 hours. How much time could it take for them to mow the
1. 1 answer
2. 562 views
What does it mean to refer to a 20-in TV set or a 25-inch TV set? Such units refer to the diagonal of the screen. A 20-in. TV
1. 1 answer
2. 496 views
The width of a rectangle is 1 ft. less than the length. The area is 2ft^2. Find the length and the width.
1. 1 answer
2. 728 views
A carpenter is building a rectangular room with a fixed perimeter of 112 ft. What dimensions would yield the maximum area? What
1. 3 answers
2. 920 views
use a graphing utility to solve each equation, rounded to 2 decimal places1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x
1. 1 answer
2. 759 views
Solve the equation on the interval 0 less than or equal 0 < 2pi.1. sec 30/2 = -2 2. cos(20 - pi/2) = -1 3. tan(0/2 + pi/3) = 1
1. 2 answers
2. 1,062 views
Please help!!5/2y+14
1. 1 answer
2. 343 views
Multiply and simplify 2/3*13The answer is 22. Right? if you mean (2/3) * 13 or 2 / (3*13) i believe according to both your
1. 0 answers
2. 750 views
Solve the system by graphing.3x+y=6 3x-y=0 I'm kind of unsure about how to do this. I'm thinking I just put any point in for x
1. 0 answers
2. 591 views
Explain the risks or benefits that the practice would face by attempting to capitalize on the opportunity.I'm not really sure
1. 0 answers
2. 497 views
Three statements that define all living things in terms of cellsThat's not even a complete sentence or question. I searched
1. 18 answers
2. 1,407 views

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