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Zack
Questions (166)
Find the circumference of the circle use 3.14 for pi 6MM
1 answer
61 views
what do we need to add to the sequence to take triangle ABC onto triangle A'B'C?
1 answer
84 views
What information does the geologic time scale provide?
3 answers
1,030 views
two more than seven times Lynn’s age
3 answers
395 views
Suppose the ball is thrown downward with an initial velocity of 3 m/s instead of being dropped at 60m high on a cliff. How far
1 answer
445 views
You invest $4000 in an account paying 4.1% continuously compounded interest. How much will you have in 8 years
2 answers
510 views
Exits on an interstate are numbered consecutively.
The distance between Exit 12 and Exit 13 is 2.7 miles. The distance between
3 answers
1,114 views
A ship travels downstream for 36 miles and then makes the same return trip upstream. The trip downstream took 3/4 of an hour
4 answers
624 views
A recatangular pen is to be made with 120 feet fencing. The pen is divided into 4 equal parts. And an existing property fence
3 answers
789 views
I'm just curious to know are there any incentives or point system for answering questions here? Like what drives people to?
4 answers
467 views
3 engineers decide to measure the distance across a small area of the ocean. Mojo and Norah are on opposite sides of the ocean.
1 answer
468 views
A recatangular yard is to be made with 120 feet fencing. The yard is divided into 4 equal parts. And an existing property fence
6 answers
614 views
A ship travels downstream for 36 miles and then makes the same return trip upstream. The trip downstream took 3/4 of an hour
7 answers
1,061 views
Width of a wall is 4 inches less then the length. The border that surrounds the wall is 2 inches wide and has an area of 240
3 answers
589 views
A pole sits on top of a tall building an observer on ground 17 m away from building finds the angle of elevation to the base of
6 answers
728 views
The equilibrium constant (Kp) for the interconversion of PCl5 and PCl3 is 0.0121:
PCl5 (g) ↔ PCl3 (g) + Cl2 (g) A vessel is
4 answers
11,924 views
I have looked and I can not find the definition for acquired traits I'm looking for the def. part of speech & synonym Please
4 answers
713 views
The population, in millions, of a city t years after 2000 is given by the function P(t) = 2.9 - 0.008t.
Which statement is true?
2 answers
1,346 views
If f(x) = -3x + 8, find f(5)
3 answers
422 views
Jake is walking up hill in the sand. Every step Jake takes he climbs 2 feet up, but slides down 6 inches. How far has Jake
4 answers
848 views
Given the function f(x) = 3x +4
Determine the value of f(x) for the point (-1, f(x))
3 answers
447 views
An automobile dealership uses CODE = 1 for new automobiles, CODE = 2 for used automobiles, and CODE = 3 for separate
2 answers
589 views
If sin (theta) = sqrt5 / 3 and cos (theta) = 2 / 3 which of the following is tan (theta)?
12 answers
5,416 views
Find the function rule.
X = -2, -1, 0, 1, 2. Y = 9, 4, -1, -6 -11. Help please this is too hard
1 answer
347 views
Heat and pressure deep beneath the Earths surface can change any rock into
A) chemical rock B) gemstone C) metamorphic rock D)
112 answers
16,299 views
what are two symptoms the author experiences when exposed to perfume?
3 answers
378 views
jessica depoists 3000 in the bank. her money doubles in 12 years. how much was her intrest rate per year(assume annual
1 answer
372 views
A firework is launched from a cliff overlooking the ocean. The elevation of the firework shell, in feet above sea level, t
4 answers
714 views
A fair coin is tossed 5 times. If X is the discrete variable the # of tails obtained,
a) Draw the probability distribution . b)
1 answer
675 views
What is the function of a eukaryotic promoter sequence?
3 answers
846 views
Planet X, a recently discovered planet, contains life forms that have double-stranded DNA as the genetic material. The DNA on
2 answers
608 views
For a specific type of machine part being produced, the diameter is normally distributed, with a mean of 15.000 cm and a
3 answers
782 views
X is a point 7cm from the center of circle O with radius 9 cm. AXB is a chord of the circle such that AX= 2 XB. Find the length
2 answers
556 views
What is 29x47 in expanded algorithm
3 answers
734 views
A solid ball is released from rest and slides down a ramp that makes an angle of 50 degrees with respect to the horizontal. a)
1 answer
823 views
A chemist wants to create a solution that is 24% acid. How many liters of a 40% acid solution must be added to 50 liters of an
2 answers
542 views
Find the slope of the radius of the unit circle that corresponds to the given angle.
7π/6 radians
3 answers
1,135 views
Find the equation of the line in the xy-plane that goes through the origin and makes an angle of 1.2 radians with the positive
2 answers
892 views
An airplane is flying at an altitude of 4000 feet and descends at a rate of 200 ft./m determine whether the altitude is
2 answers
624 views
what is the schwarzschild radius of a black hole with a mass of 1.68x10^43kg
1 answer
392 views
A manufacture has been selling 1400 television sets a week at $480 each. A market survey indicates that for each $24 rebate
2 answers
1,124 views
The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 444 dollars per
2 answers
621 views
A fence is to be built to enclose a rectangular area of 320 square feet. The fence along three sides is to be made of material
4 answers
6,192 views
The revenue from selling q items is R(q)=475q−q2, and the total cost is C(q)=175+6q. Write a function that gives the total
2 answers
1,133 views
Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic?
7 answers
2,225 views
My divisor is 9, I am greater than 7 times 9, I am less than 8 times 9,my remainder is 7,what dividend am I ?
7 answers
2,517 views
Jeffrey biked to the store at 12 miles an hour but took his time on the way home going 8 miles an hour. If it took him 20
2 answers
525 views
Elizabeth took 13 minutes less than twice as long as Heather to solve the puzzle if their total time together was 23 minutes who
5 answers
999 views
The 80 8th graders took a trip. The boys numbered 16 fewer than twice the number of girls. How many of the eighth graders are
2 answers
806 views
How would you describe the environment of New York City?
4 answers
445 views
Hannah made 0.7 of her free throw in a basketball game,abra made 9/10 of her free throws,dena made 3/4 of her free throws,who
4 answers
1,246 views
Amita decides that she wants the molds to have a square base.How many of the possible molds can she use?
7 answers
3,170 views
A ball is thrown vertically upward with an initial velocity of 135 feet per second, the ball’s height after t second is s(t) =
2 answers
564 views
A kaleidoscope is a tube-shaped instrument that contains mirror and colored glass. When a viewer looks in
one end, (s)he sees
2 answers
522 views
1 Catriona is deciding how large of a cake to order for a party. She can choose from a 1-layer cake that serves
10 people, a
3 answers
561 views
What is a bi-wheel vehicle?
3 answers
476 views
The road runner drops a boulder from a 53 meter high building. When the block is 14 meters above the ground, the 2 meter tall
2 answers
565 views
Larry stands on a bathroom scale while riding up in an elevator. His mass is 75 kg. At the current time the scale reads 100 lb.
1 answer
529 views
Larry stands on a bathroom scale while riding up in an elevator. His mass is 75 kg. At the current time the scale reads 100 lb.
1 answer
429 views
I think this is C if not Which analogy would best go with this one? branch:tree::
A. flower:garden B. teo:three C.
1 answer
413 views
Would this be D if not Which analogy would best go with this one? A:Z::
A. girl:mother B. weight:pounds C. truth:lie D. prologue:
1 answer
419 views
Whish analogy would best go with this one? A:Z::
A. girl:mother B. weight:pounds C. truth:lie D. prologue: epilogue
1 answer
369 views
One side of a triangle is 3 inches shorter than twice the length of the shortest side. The third side is 5 inches longer than
2 answers
704 views
When setting the price of admission tickets for the amusement park, Tabitha wants the price for a two child, two- adult family
2 answers
759 views
Prove the identity:
cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)
1 answer
344 views
How many hands of 5 cards can be made from a standard deck of cards such that each hand contains exactly 1 red card and 4 black
2 answers
851 views
Determine the molar solubility of lead(II) iodide, PbI2, in 0.050 mol/L NaI.
Ksp of PbI2 = 9.8 x 10^(-9)
1 answer
941 views
Prove the following:
sin(x+y)sin(x-y) = cos^2 (y) - cos^2 (x)
1 answer
378 views
The electric field lines surrounding three charges are shown in the figure below. The center charge is q2 = -15.9 µC.
4 answers
4,913 views
What is the mathematical expression for 80 is 20 times as many as 5?
5 answers
315 views
How many frequent flyer point Indira earn if she traveled from new York city to Berlin ,Germany at a distance of 3,965
1 answer
360 views
Compare how beaver stole fire and stealing fire from Zeus are the same
4 answers
1,788 views
How many strips of paper 4inches long and 1 inch wide can be cut from a piece of paper 8 inches long and 6 inches wide
3 answers
614 views
If there are 12 square tiles and each tile measure 1 foot on each side ,how many non congruent rectangle can you make.Each
3 answers
453 views
If you h ave an 8 inches long and 36 inches wide strip ,how many strips of wood can you have if it is 4 inches long and 1 inch
2 answers
1,081 views
How many strips of wood can you have from an 8 inches long and 36 inches wide if the strips are 4 inches long 1 inch wide
1 answer
340 views
How many strips of paper 4 inches long and 1 inch wide can be cut from a piece of paper 8 inches long and 6 inches wide
2 answers
555 views
Ms Washington buy a refrigerator that is 6 feet high, 3feet deep and 4 feet wide ,how many floor space does she need to fit the
3 answers
522 views
List all 3digit numbers for which the sum of the digit is 3
1 answer
321 views
List all 2 digit numbers for which the sum of the digit is 5
1 answer
376 views
How can I find the initial rate of formation of products {mol/((L)(s))}?
1 answer
306 views
The complete combustion of 1.00 ml of octane increases the temperature by 22.7 degrees celsius. The density of octane is
9 answers
778 views
Solid phosphorous is found in two forms: white phosphorous (P4) and red phosphorous (P). White phosphorous is the standard
2 answers
929 views
Simplify
sqrt80 -3 Sqrt63 - sqrt125 - sqrt175
4 answers
535 views
How do I verify this identity? (I've tried a lot but it's just not working)
(sin2x + sin2y) = 2sin(x+y)cos(x-y)
1 answer
520 views
evaluate each limit, if it exists
[(2+x)^2 - 16]/ (x-2) what do I do?
1 answer
402 views
given:
25.9 kJ + 1/2 H2 + 1/2 I2 => HI how much energy is needed for the reaction of 4.57x10^24 molecules of iodine, I2, with
2 answers
1,049 views
use the unit circle to prove that tan(x/2) = (sin(x))/(1+cos(x))
1 answer
308 views
Volume of a cube with side length of 26.4 meters I need this by 11/21/12 ASAP
1 answer
466 views
A box is being pushed to the left parallel to the x-axis by a force of 23.0 N. A rope provides a second force of 33.8 N on the
4 answers
472 views
What are the equations for potential and kinetic energy?
1 answer
312 views
A uniform, solid, spherical asteroid with mass 1.2 * 10^13 kg and radius 1.0 km is rotating with a period of 4.6 hours. A
3 answers
819 views
which is greater, 100^10 or 10^100? explain reasoning.
2 answers
688 views
How many times larger is 2,300,000 sq. miles than 1,200,000 sq. miles?
2 answers
969 views
What is the percent increase from 91,400,000 to 94,400,000?
3 answers
577 views
I'm not really getting this.
complete the table. Linear system: 4x+4y=-4 x: 0,1,2
1 answer
321 views
An engine block of mass M is on the flatbed of a pickup truck that is traveling in a straight line down a level road with an
3 answers
998 views
Is 87 rounded to 90 or 85? I have to round to nearest fifth
5 answers
1,107 views
The density of 18% nh4cl is 1.05 grams/ml. What mass of nh4cl is in 425 ml of the solution?
3 answers
792 views
Could You give me a example of a sentence of ceaselessly?
4 answers
400 views
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