Posts by dan

Total # Posts: 1,205

Math
Ms. Sue ???? i could have 0 toppings (that's 15).....or i could have 1 topping (x's 15 flavors) - that's 1215 ...or i could have 2 toppings 81x80(x's 15 flavors) that's 97200 more... Don't i have to get the sum of all of the combinations ??

Math
If I have 15 flavors of ice cream and 81 different toppings, how many different combinations could I create (assuming only 1 flavor of ice cream in the container at a time)? I got 36267774588438900000000000 ??? IS THIS RIGHT???

Chemistry
The specfic heat of iron is 0.11cal/g C. The heat of fusion of iron, the heat required to convert iron from a solid to liquid at its melting point, is 63.7cal/g. Iron melts at 1530 C. How much heat must be added to 2g of iron at 25c to completely melt it?

language arts
What adjective could i use for the following sentence? What a_______ maps this atlas has!

Chemistry
How many moles of gas are in a 30 liter scuba canister if the tempature of the canister is 300 k and pressure is 200 atmospheres?

Chem
I have a balloon that can hold 100 liters of air. If i blow up this balloon with 3 moles of oxygen gas at a pressure of 1 atmosphere, what is them tempature of the balloon?

Chem
How many moles of gas are in a 30 liter scuba canister if the tempature of the canister is 300 k and pressure is 200 atmospheres?

Math
I think you may have misread the question. Check to see if .005x^2 is actually -.005x^2. Then follow the directions above. When you graph the flight of an object it should be a parabola that opens downwards. Think of the graph as a side view of the rock where the x-axis is the...

Math
A rock band has 5 members, and 2/5 of the members play string instruments. Also, 0.4 of the members sing. Does the band have the same number of string instrument players as singers. I think no. Am i correct? Please explain it.

Math
I mean it

Math
Thank you

Math
What's 6/20 in simplest form? ( I know what simplest form is)

Math
the number can be divided by a greater sum then.

Physics
A pitcher throws a baseball with a horizontal velocity of 132 ft/s (90 mph) toward home plate that is approximately 60 ft. away. What is the vertical drop of the ball when it reaches the plate? g = 32 ft/s^2.

Physics
A long jumper leaves the ground with an initial velocity of 12 m/s at an angle of 28-degrees above the horizontal. Determine the time of flight, the horizontal distance, and the peak height of the long-jumper.

Physics
Train A starts at 4 miles South of a bridge and heads North at a constant speed of 30 miles per hour. Train B starts 6 miles North of the bridge. a. What velocity must Train B have so that the two trains cross the bridge at the same time? b. If Train B goes at 35 miles per ...

Physics
A train is moving towards a destroyed bridge. The velocity of the train remains constant at 20 m/s. A person inside the train realizes that they will die unless they run to the back of the train and jump out. If the person is 15 m from the back of the train and the back of the...

Physics
At a certain instant, a ball is thrown downward with a velocity of 8.0 m/s from a height of 40 m. At the same instant, another ball is thrown upward from ground level directly in line with the first ball with a velocity of 12 m/s. Find (a) the time when the balls collide and (...

Physics
A plane is flying at 25 degrees north of west at 190km/ h. Suddenly there is a wind from 15degrees north of east at 45 km/ hr. what is the planes new velocity with respect to ground in standard position

Physics
Plane flying southwest at 155mi/hr. their is a wind from the west at 45.0mi/hr. what's the planes new velocity

MaTH
so is the perpendicular line is -2/3? What is the parallel line?

MaTH
Consider the line 9x-6y=-3 . What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?

Mth
I suck in math as you can see and yes I will love more help

Math (Pre-Cal)
There is exactly one triangle the length of whose sides are integers in arithmetic progression and whose area is 156 square units. Find the perimeter of this triangle.

Math
An airplane approaches a runway at a 3 degree angle of depresssion. If the plane is flying at 30,000 ft., find the ground distance from the airport to the point directly below the plane when the pilot begins the descent. Round your answer to the nearest foot.

Math
An airplane approaches a runway at a 3 degree angle of depresssion. If the plane is flying at 30,000 ft., find the ground distance from the airport to the point directly below the plane when the pilot begins the descent. Round your answer to the nearest foot.

Biochemistry
Do you add Nacl or HCL if your target buffer pH is 8, and the buffer is HEPES

Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 433 N and F2 = 354 N. (Assume up and to the right as positive directions.) F1 is 10 degrees west of the y axis, F2 is 30 degrees east of the y axis. (a)What is the direction &...

Physics
Forces of 11.3N north, 19.1N east, and 14.5N south are simultaneously applied to a 4.12kg mass as it rests on an air table. What is the magnitude of its acceleration? What is the direction of the acceleration in degrees? (Take east to be 0 degrees and counterclockwise to be ...

Physics
A rowboat crosses a river with a velocity of 3.30 mi/h at an angle 62.5° north of west relative to the water. The river is 0.795 mi wide and carries an eastward current of 1.25 mi/h. How far upstream is the boat when it reaches the opposite shore?

MATH
THREE QUARTERS OF A POUND OF HONEY COSTS \$4 HOW MUCH HONEY WOULD YOU GET FOR \$6

Trigonometry
cos 17pi/6 + tan 17pi/6

Physics
compare the collision of a baseball and bat with the collision of a baseball and a fielder's glove when the baseball is caught. During which collision is there a greater momentum change for the baseball?

math
what is 0.0678/100

Physics
Question: particle J with zero initial mass and X energy accelerates from a static start to 'C' (light speed) in a time frame of N and mass increases 10 to the 28th power per nanosecond- -What is the mass on particle J? -What is the energy of particle J?

If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be about A. 100:1 B. 10:1 C. 1:1 D. 1:10 E. 1:100 -i HAVE NO IDEA Which of the following amino acids has a side chain that can serve ONLY as a hydrogen ...

biology
If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be about A. 100:1 B. 10:1 C. 1:1 D. 1:10 E. 1:100

biology
Which of the following amino acids has the most hydrophilic side chain? A. F B. Q C. V D. M E. A

biology
Which of the following amino acids has a side chain that carries a negative charge in its conjugate base form? A. H B. W C. C D. K E. N

physics
The largest-caliber antiaircraft gun operated by the German air force during World War II was the 12.8 cm Flak 40. Suppose this weapon fired a 26.2 kg shell with a muzzle speed of 800 m/s. What propulsive force was necessary to attain the muzzle speed within the 6.00 m barrel...

Physics
Find the speed, v, of a pendulum at the bottom of its swing (B), given that it has mass m and initial height at A is h (the difference in height from B to A). Your answer will be in terms of g as well. Included is a drawing of a pendulum at its maximum height (A), and at its ...

Linear Algebra
Can you perform using matrix? Thank you very much

Linear Algebra
Consider the system x-2y=k-1 4x+(1-k^2)y=8 For what values of k does the system have a. unique solution? b. infinitely many solutions? c. no solution?

math steve
steve can you explain step by step please 8x=5y and 3y=14z then 12x= how many z's

math
if 8x=5y and 3y=14z then 12x= how many z's

calculus
A 100 inch piece of string is cut into 3 pieces. One piece forms a circle, one forms a square and 1 forms an equilateral triangle. If the perimeter of the triangle is equal in length to the perimeter of the square how long should each piece of string be to minimize the total ...

math
compare two cell phone companies and determine which is the better deal. Needs to be in a y=mx+b equation for each company. company a \$40 base rate plus every minute costs .05 company b base rate \$30 plus every minute costs .07 based on 800 minutes PLEASE HELP ME ASAP!

Chemistry Help
Write a balanced equation for the reaction between an aqueous solution of calcium nitrate being mixed with an aqueous solution of sodium phosphate Identify the precipitate.

Finance
Arena Distributors is a new company and currently pays no dividends. The company has just reported earnings of \$1.5 per share and its earnings are expected to grow at a 15 percent annual rate over the next four years. Following this four-year high growth period earnings will ...

Finance
Seven years ago a semi-annual coupon bond with a 10% coupon rate, \$1,000 face value and 15 years to maturity was issued by Corn Inc.. Teddy bought this bond two years ago when the market interest rate was 12%. And now the market interest rate is 5%. If teddy sells the bond now...

math URGENT!!!!!!!!!!!!
a 12x12-inch square is divided into n^2 congruent squares by equally spaced lines parallel to its sides. circles are inscribed in each of the squares. find the sum of the areas of the circles. answer and please explain step by step how u got the answer!! please!!!!

com sci
A rational number is the form of a/b, where a and b are integers with b != 0. Develop and test a class for processing rational numbers. The class should have a numerator data member and a denominator data member. It should read an display all rational numbers in the format a/b...

physical
to strengthen his arm and chest muscles, an 82-kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from the bottom of his feet, and the centers of his palms are 30.0cm from the top of his head. find the force that the floor exerts on each of is feet ...

Physics
Which one of the following stresses would be most likely to cause a bone to fracture? A) tensile stress B) compressive stress C) sheer stress D) bulk stress

math URGENT!!!!!!!
a rectangular sheet of paper is folded in half, with the crease parallel to the shorter edge. it happens that the ratio of longer side to shorter side remains unchanged. what is this ratio? answer this and explain how u got the answer.. PLEASE??!

Computer Science
Overview The purpose of the assignment is to develop a basic understanding and skills programming of input/output ports and device polling. The assignment examines hardware polled input from a push button. Assignment 1 The assignment is based on the flashing LED of the MSP430 ...

math
Alexa and Emma are looking up at their house from the backyard. From alexa's point of view, the top of the house is at an ang;e of elevation of 40 degree. From Emma's point of view, directly closer to the house, it is 60 degree. The house is 15 metres high. How far ...

math URGENT!!!!

math URGENT!!!!
i have a list of 5 different numbers. the sum of 2 of the numbers is 0. the sum of 2 of the numbers is 1. the sum of 2 of the numbers is 2. the sum of 2 of the numbers is 3. the sum of 2 of the numbers is 4.the sum of 2 of the numbers is 5.the sum of 2 of the numbers is 6. the...

math..reiny..help!!
is that the area of big or small triangle?

math URGENT!!!!
the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. please answer and show how u did it step by step please!!!! how do i find area of the smaller triangle?

math URGENT!!
so is that the area of big triangle or small?

math URGENT!!
how do i find the area of the little triangle? Reiny,

math URGENT!!
the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. please answer and show how u did it step by step please!!!!

Trig
From a point 120 feet from the base of a plant building the angle of elevation to the roof line of the building is 38 degrees. The angle of elevation to the top of an antenna is 43 degrees. The antenna is attached to the nearest edge of the roof and the ground is flat. The ...

mathURGENT!!!!
the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. what is the answer and can u explain how u got it step by step? please...

math
42 is evenly divisible by both 6 and 7

math URGENT!!
a rectangular box measures 4 by 5 by 2 meters. what is the length of the longest pole that can fit into the box?

math
how did u get that?

math
a rectangular box measures 4 by 5 by 2 meters. what is the length of the longest pole that can fit into the box?

math
amee, ben, carly, and darrien are friends. darrien has no money. amee gives darrien 1/4 of her money. ben gives darrien 1/5 of his money. carly gives darrien 1/3 of her money. each person gave darrien the same amount. what fraction of the groups total money does darrien have ...

b) 2 7/8 inches

Science
x = (v+u)(v-u)/2a where x = distance, v = final speed, u = initial speed, a = acceleration substituting known values: 130 = (30)*(-30)/2a a = -900/260 = -3.46 m/s^2 f = ma u(k)*f(normal) = m*a u(k)*m*g = m*a u(k) = a/g u(k) = 3.46/9.8 = 0.35

Math does anyone know this?
they are parallel....two nonvertical lines are parallel if their slopes are equal and have different y intercepts..

math - still don't get it

math - still don't get it
because as long as the number(4) is right after the decimal point it doesnt matter how many 0's are in front of decimal or after the 4. think of it in dollar amount 0.4 is 0dollars and 40 cents. .40 is still 0 dollars and 40 cents thus 0.4=.40 if it were a different number...

math
its equal to...

math
can u explain that a little further steve?

math
describe the picture you would get by graphing the solutions(if there are any!) to the equation (x+y)^2=x^2+y^2

math
there are 15 boys and 18 girls in fifth grade. Find the ratio of boys to girls in fifth grade.(how do I get the answer) can someone show me how to work the problem

Physics
12 ft

math
is there an equation for this?

math
an object released from rest will fall 16t^2 feet, t seconds after it is dropped. 2 pebbles are dropped, one after the other, from a cliff that is 64 feet high. the 2nd pebble is released the instant the first pebble has fallen exactly one foot. how far above the ground is the...

math
consider the equation x^2+kx+1=0 a single fair die(dice)is rolled to determine the value of the middle coefficient, k. the value for k is the number of dots on the upper face of the die. what is the probability that the equation will have real, unequal roots?

Physics
A falling iPad takes 0.15 s to travel past a window 2.7 m tall. From what height above the top of the window did the mobile device fall? Equation to use?

Physics
A falling iPad takes 0.15 s to travel past a window 2.7 m tall. From what height above the top of the window did the mobile device fall? What equation would I use for this?

trigonometry
Suppose θ is an angle in standard position whose terminal side lies in Q II. If sin θ = 13 12 , find sec θ.

physics
An airplane flies 200 km due west from city A to city B and then 270 km in the direction of 31.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C?

physics
An airplane flies 200 km due west from city A to city B and then 270 km in the direction of 31.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C?

physics
A river flows due east at 2.00 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 11.0 m/s due north relative to the water.

Math
1. b 2. c 3. c 4. a

physics
A 5.21 box sits on a ramp that is inclined at 37.8 above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.29. What horizontal force is required to move the box up the incline with a constant acceleration of 4.00 ?

math
malik paid 480\$ to purchase a certain number of pizzas, but 2 extra were delivered which decreased the amount per pizza by 1\$. how many pizzas were delivered?

math
Computers manufactured by a certain company have a serial number consisting of a letter of the alphabet followed by a five-digit number. If all the serial numbers of this type have been used, how many sets have already been manufactured?

economics
Say your parents give you a car for your birthday. It is not the new model you wanted, but it's in very good condition. They bought it used for \$15,000 (market value). The cost of keeping the car to you is (not counting maintenance and operation cost) is:

economics
Say your parents give you a car for your birthday. It is not the new model you wanted, but it's in very good condition. They bought it used for \$15,000 (market value). The cost of keeping the car to you is (not counting maintenance and operation cost) is:

accounting
A company purchased a machine on January 1 of the current year for \$750,000. Calculate the annual depreciation expense for each year of the machine's life (estimated at 5 years or 20,000 hours, with a salvage value of \$75,000). During the machine's 5-year life its ...

health
Thank you very much Ms.Sue really appreciate it:)

health
I mean you could just look at the answer choices in the asked question instead of making a "smart" dumb question. (not trying to be rude but its common sense)

Physics
When a resistor is connected across the terminals of an ac generator (112 V) that has a fixed frequency, there is a current of 0.500 A in the resistor. When an inductor is connected across the terminals of this same generator, there is a current of 0.400 A in the inductor. ...

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