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Eliza
Questions (74)
Express 1+cos 30°/1-sin 30°
4 answers
297 views
Find the length of the diagonal if the length of the window is 48 cm and its breadth is 35 cm.
1 answer
220 views
You have 5 more dimes that nickels if you have $1.55 in total how many nickels and how many dimes do you have
1 answer
331 views
A uniform meter stick with a mass of 210 g is supported horizontally by two vertical strings, one at the 0 cm mark and the other
5 answers
3,501 views
A tennis ball of mass m = 0.060 kg and speed v = 15 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45°
3 answers
2,095 views
Q11 Americans began to notice growing differences between the northern and southern sections of the country. There were more
2 answers
558 views
The ratio of the width to the length of a rectangular garden is 2:3 which of the following could be the width and length of the
13 answers
2,454 views
If 226 g of water is contained in a 311 g alu- minum vessel at 11◦C and an additional 92 g of water at 91◦C is poured into
1 answer
496 views
If 226 g of water is contained in a 311 g alu- minum vessel at 11◦C and an additional 92 g of water at 91◦C is poured into
1 answer
466 views
A 7 gallon bucket of water of mass 26.502 kg and temperature 100◦C is added to a 62 gallon gallon tub of water of mass 234.732
2 answers
879 views
A 300 g glass thermometer initially at 32 ◦C is put into 165 cm3 of hot water at 88 ◦C.
Find the final temperature of the
2 answers
1,233 views
What is the area of a quadrilateral ABCD, if AB = 5 cm, BC = 13 cm, CD = 9 cm, DA = 15 cm, AC = 12 cm?
2 answers
963 views
35.0mL of 0.050 M HCl is titrated with 0.050 M NH3 (Kb= 1.8 x 10^-5). The pH of the analyte solution after 15.0mL addition of
2 answers
677 views
a) Rain drops hitting the side window of a car in motion often leave diagonal streaks if there is no wind. Why?
b) For a certain
1 answer
1,173 views
What is the salt most likely to be formed at the junction of the Fe2+ions and SiO4+
3 answers
367 views
How can dilute a 1 M HCl solution to obtain 100 mL of HCl solution 0,1 M?
1 answer
399 views
An ice cream shop offers the toppings shown below. How many 4-topping ice cream sundaes can you make?
chocolate chips walnuts
7 answers
2,833 views
An ice cream shop offers the toppings shown below. How many 4-topping ice cream sundaes can you make?
chocolate chips walnuts
5 answers
1,701 views
A ferromagnetic material is
A) always a magnet B) a magnet if it's domains are aligned C) a magnet if it's domains are not
3 answers
458 views
A ferromagnetic material is
A) always a magnet B) a magnet if it's domains are aligned C) a magnet if it's domains are not
1 answer
469 views
What is the main feature of public-interest groups?
A. They cannot collect dues, so membership is free. B. They have special
7 answers
749 views
a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar.
1 answer
845 views
a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar.
2 answers
593 views
Since 1991, house paint produced in Canada must contain no more than 600 ppm of lead. What is the maximum mass of lead permitted
4 answers
477 views
Bill can mow his mother's lawn in 45 minutes. His brother Jim can mow it in 75 minutes. How long will it take them to do it
2 answers
923 views
Suppose that A = D + E and that D/A = 0.80. Solve for D/E.
These are the steps I have taken, but I don't know how to proceed. 1.
3 answers
560 views
A 26.0 g sample of ice at -17.0°C is mixed with 124.0 g of water at 81.0°C. What is the equilibrium temperature?ºC.
2 answers
1,340 views
Show that
8^x =square root 2 5^x=1/square root 25 (3)
1 answer
343 views
Give three examples each of household items that have:
a. different structures and exhibit different properties b. same chemical
2 answers
1,011 views
Give three examples each of household items that have:
a. different structures and exhibit different properties b. same chemical
2 answers
978 views
What is the mass of a cylinder of lead that is 2.50 cm in diameter and 5.50 cm long. The density of lead is 11.4 g/mL. Find the
5 answers
7,911 views
A coin is tossed 3 times. Find the probability of obtaining the following:
a) heads on the first and last toss, and tails on the
1 answer
473 views
A computer repair shop has estimated the probability that a computer sent to the shop has a bad modem is 1/8, the probability
3 answers
1,386 views
A car with a mass of 1815 kg is traveling down a road for 50 meters. It takes the car five seconds to travel this distance.
1 answer
408 views
ind the derivative of y= (2x^2+1)/(x-3)
1 answer
284 views
If you had 106.35 grams of Cl, how much Na would be required to convert i all to NaCl. I worked this problem and got 41.83 grams
1 answer
444 views
If you had 19 grams of F, how much Ca would you need to convert all of the F to CaF2?
1 answer
302 views
Bad boy is fleeing the scene of a crime at 75 mph. Half an hr. later the police chase after him following his same
1 answer
383 views
How can absolute value help one to understand the size of a quantity? Give an example. I'll appreciate anyone's help thanks. :)
12 answers
2,321 views
How can absolute value help one to understand the size of a quantity? Give an example. I'll appreciate anyone's help thanks. :)
1 answer
446 views
Upon decomposition, one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample
4 answers
681 views
Can someone please help me solve this homework problem for my chemistry class.It's my last problem and I'm stuck!:/ Thanks :)
A
2 answers
528 views
Can someone please help me solve this homework problem for my chemistry class.Thanks
A 4.0*10^1kg sample of water absorbs 308KJ
2 answers
530 views
When 47.3J of heat are added to 13.0g of a liquid, its temperature rises by 1.76C. What is the heat capacity of the liquid?
2 answers
612 views
Suppose the weekly use of gasoline for motor travel by adults in North America is approximately normally distributed, with a
1 answer
1,238 views
if the length of a rectangular pyramid is made seven times longer, how many times the volume of the original figure is the
1 answer
456 views
The top half of a storage tank is a circular cylinder that is 5 meters tall and has a diameter 2 meters. The bottom half of the
3 answers
545 views
Suppose the function f(x)=4/x
a) Use the definition of the derivative to show that f ' (-2) = -1. b) Write an equation for the
3 answers
411 views
Suppose the function
a) Use the definition of the derivative to show that f ' (-2) = -1. b) Write an equation for the line
1 answer
469 views
(5y-3)/3 - (2y-1)/2=1
note: the divide signs are the fraction bars. -5(-2(x-1) - (x+1))=9 .08n-.09(n-2)=5-.08 -2(3-(x-1)+3x) +
3 answers
385 views
I was walking through my local home supply store the other day carrying a 10 ft length of plastic pipe. The pipe was horizontal
2 answers
901 views
In right triangle ABC, angle A=3, angle B=60, and angle C=90. Find AB with AC is 12 ?
2 answers
487 views
1. a.) Find an equation for the line perpendicular to the tangent curve y=x^3 - 9x + 5 at the point (3,5)
[* for a. the answer
4 answers
1,575 views
Regions are a way to describe and compare places. A region is identified by its common characteristics and/or features. Identify
3 answers
691 views
what is the city and continent name of these :
34° S and 58° W 34° S and 18° E 51° N and 0° 30° N and 31° E 40° N and
4 answers
1,241 views
Solve by Factoring:
1.) x²- x + 12 = 0 2.) 4x³ + 21x² - 18x = 0 3.) x³- x² - x + 1
5 answers
1,301 views
1.) Explain why |8-15i| = 17
3 answers
602 views
An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of 220 N, toward east, on the
1 answer
763 views
in this sentence what is the contrast " Water like fat raindrops that fall from skinny trees "
1 answer
415 views
What did Europe begin in the mid-1400s?
1 answer
516 views
Is the Renaissance the beginning of the Modern Age?
4 answers
395 views
In the sentence "Each autumn, some hurricanes track directly through the Bermuda Triangle." would definition 1.a path along
6 answers
430 views
In the sentence "Ships have sunk for no apparent reason", would the word obvious, general,or simple best fit the word apparent?
4 answers
418 views
Which word would fit best for the word endangered, suffering, disappearing,or menacing in the sentence "With fewer than 100
1 answer
383 views
Which of the following cost functions exhibits cost complementarity?
A. -4Q1Q2 + 8Q1 B. -4Q2 + 8Q1 C. 6Q1Q2 - Q1 D. 4Q2Q1 + 8Q1
4 answers
1,310 views
I cant figure this out, does 235+z=xy/3 or does 354+z=xy/3?
thanks!
3 answers
365 views
How can this be? I am supposed to solve (-3-8i)-(-2-9i). Once it is broken down, you get (-3+2)-(8i-9i) I got -1+-1i, but my
2 answers
1,019 views
How do you do the quadratic equation when there are only two numbers, such as -5x and 15, not the three needed?
1 answer
472 views
Hi everyone. Would someone be able to help me with this problems? I know it's a lot, if you only want to help with one or two,
2 answers
607 views
A mole of pennies stackd on top of one another would reach from here to the sun and back how many times?
5 answers
870 views
can anyone help me with parcial products?
3 answers
910 views
Name the property shown by each statment. 9+(5+35)=(9+5)+35
4 answers
630 views
Check my answers thanks!
1. A diesel automobile outputs ThermE, RadE, ElectE and KinE from an input of a. NuclE b. ChemE c.
1 answer
553 views
does anyone know what the effects of low level ozone is on animals and plants?
Moderate to high levels of ozone causes
1 answer
880 views