Questions and answers by

lulu

Questions (138)

Use the drop-down menu to complete the sentence.Many of the achievements of the ancient Indus Valley civilization was due to
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2. 330 views
What group was in the highest caste?A. Dalits B. rulers and warriors C. priests D. landowners and merchants
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2. 215 views
Write the standard form equation of the parabola that passes through (-6,-12), if vertex at the origin and axis of symmetry is
1. 1 answer
2. 129 views
If the domain of the function y=4x+1 is 0≤x≤10, what is the function’s range?
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2. 331 views
A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 12 inches
1. 5 answers
2. 998 views
what is 1:56:20+1:01:13+1:50:05
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2. 388 views
Could you give me an example of a linear equation with a variable on both sides of the equal sign? Please don't look one up. You
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2. 687 views
Which factor should be included in a model of energy flow into the atmosphere?variations in local temperatures places
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2. 3,080 views
Could you give me an example of a linear equation with two variables? Please don't look one up. You don't have to give the
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2. 447 views
Which factor should be included in a model of energy flow into the atmosphere?variations in local temperatures places
1. 3 answers
2. 2,068 views
Scientists believe that the (Milankovitch cycles, tilt of the earths axis, sea levels, low temperature) explain why Earth’s
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2. 1,389 views
Why does traditional Chinese medicine affect worldwide wildlife populations?A.Traditional Chinese medicine is against the law in
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2. 1,043 views
"loss of biodiversity" is the same as "lost to deforestation" right?? im french so i just want to be sure my english is correct.
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2. 479 views
"City residents affected by health problems from the plant’s toxic emissions prompted the government, for the first time, to
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2. 698 views
In the early 1600s, Bhutan's religious and political power was consolidated by a TibetanA. mantra B.lama C. dzong D. stupa i am
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2. 1,154 views
Suppose you want to build a rectangular sandbox where the width is 5 feet less than the length and the diagonal is 5 feet longer
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2. 1,852 views
a drum holds 90 kg of water or 60 kg of gasoline. determine (a) the relative density of gasoline (b) the density of gasoline (c)
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2. 958 views
in the middle circle have rectangle with length 12 and wide 5, find shaded area between rectangle and circle
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2. 525 views
Absolute value9 [9 - 8x] = 2× + 3 9 [9 -6×] =3 9 [-6x] = -6 54x = -6 x= -1/9 , × = 1/9 Is this correct? If not could you
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2. 572 views
These are absolute value questions.[-4b -8] + [-1b -b^2] + 2b^3. b=-2 given [8] + [2 (4)] +-8 Answer =8 Is this correct?
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2. 304 views
2Na + 2H2O---> 2NaOH + H2Need to find the molecules of H2 Atomic wt o Na = 23 48.7 g of Na 48.71/23 = 2.12 mols Na 2.12/2 × 24.
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2. 722 views
P +4- 2 (p-10)> 0Please check, it was marked wrong P+4 -2p +20 > 0 -p+ 24> 0 -p >-24 P > 24 Answer choices are 29, 26, 24, 22
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2. 471 views
Could you please help?What are the solutions of the compound inequality? 2x - 2 < - 12 or 2x+3 > 7 Is this one x < - 5 or x> 2
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2. 1,316 views
On the blueprints of Adam's office building, the length of his rectangular office space is 5 1/4 inches. If the actual length of
1. 1 answer
2. 1,289 views
Is this balanced properly2H2O2----> 2H2O +O2 Thank you for the reactions of zinc and acetic acid. REAL QUESTION, if I was to rub
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2. 629 views
Dr Bob,Sorry about this penny thing, but if I was to put pure zinc into acetic acid, what would happen to the zinc?
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2. 436 views
If you put copper coated penny 1983or newer, in vinegar, it turns blackish green. If you rub the copper off half the penny first
1. 1 answer
2. 478 views
Could you pls tell me why I have to change this sign. You should look at the sign like an equal sign.-2/5x -9 < 9/10 -2/5x <
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2. 506 views
Could you pls tell me why I have to change this sign. You should look at the sign like an equal sign.-2/5x -9 < 9/10 -2/5x <
1. 1 answer
2. 474 views
If you have a map of 19th century US and the names of the states are changed to Irish names, ie: Irish Sea , Mulligan, etc. And
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2. 612 views
Back to the atomic emmission spectrum and the atomic theory.in the 1900s, scientists observed that when a gaseous element, such
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2. 692 views
Explain how understanding of the atomic emmission spectrum led to developement of the atomic theory.The emmissions spectrum for
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2. 1,234 views
Element xIsotope 55x 60% Isotope 56x 30% Isotope. 57x 10% 55× 60 =3300 56×30=1650 57× 10= 570 Add them up5520 divide by 100
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2. 665 views
Could you pls check back a few questions. The first 1 or 2 digits in each nmber is the family number, so the numbers do not go
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2. 544 views
For the elements in row 2 of the PT discover the relationship between ionization and the family number of the elementElement.
1. 1 answer
2. 692 views
When calling the families on the periodic chart by the top or first name in the column, where hydrogen is a non metal, and in
1. 2 answers
2. 701 views
Is the atomic mass or atomic weight on the periodic table written in grams.
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2. 639 views
Does helium have an ionic radius? I searched and looked in an old Chem book, and come up empty. Hydrogen is not listed either.
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2. 347 views
Could you pls check this time line1, king George issues Proclamation of 1763 2, stamp act 3. Sons of Liberty 4. Boston Massacre
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2. 657 views
When you mixand separate CaCO3 and SiO2 with acetic acid-vinegar, it is a chemical reaction. It bubbles and CO2 is produced.
1. 2 answers
2. 610 views
the Pythagorean theorema square + b square = c square a square + x square = 4 square how to find x square?
1. 2 answers
2. 460 views
what is the smallest number that 54 can be multiplied by to give a perfect square?
1. 1 answer
2. 2,789 views
A cash register contains only ten dollar and fifty dollar bills. It contains three times as many ten dollar bills as fifty
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2. 1,335 views
5.4 x10^-2 by 2.5 x10^-3 by 7.9 x10^-3mvolume = 106.65 x10-8m^3 Check pls yesterday you said 106.65 x10^-6. If you add 2+3+3 you
1. 1 answer
2. 498 views
Sig figs33.067. 5 sig figs .0908. 3sig figs 1099. 4 .0087. 2 check pls
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2. 716 views
Check pls.5.4 x 10^-2 by 2.5 x 10^-3 by 7.9 x10^-3 m volume = 107.44 x 10^-8 m^3
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2. 320 views
three fireworks are fired at the same time.The first one is fired every 64 seconds, the second one is fired every 84 seconds and
1. 1 answer
2. 578 views
Confused, conflicting textswhen you are finding % error for density formula: experienced value-accepted value/ accepted value
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2. 448 views
What particle is needed to complete this equation14/7N+ _______=14/7C+ 1/1H I think it is a beta particle because of beta decay
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2. 1,000 views
If I have a sample from doing a half lfe lab with m&ms, not timed, just pulling out decayed or m&ms with rhe m on top, how do I
1. 1 answer
2. 519 views
I know what the domino threty is. Question is, What 3 aspects of foreign policy do we see the domino theory reflected? I assume
1. 1 answer
2. 636 views
If a cylinder with a 4 inch diameter and a 6 inch height holds 1 pound of oatmeal. How much oatmeal will a cylinder (similar)
1. 4 answers
2. 3,848 views
One more, confusedHow can you tell by the periodic chart which ions of metals are most easily reduced or oxidized. A website or
1. 1 answer
2. 544 views
Dr BobCould you check this please? Voltaic cell---cathode is positive, accepts electrons, reduced, anode is negative, gives up
1. 1 answer
2. 512 views
A 110g piece of copper is heated and the temperature changes from 38C to 172C. The heat absorbed is 686 cal. What is the
1. 1 answer
2. 541 views
What is the equilibrium constant for2A + 3B (double arrow) =4C Is it (C)^c/ (A)^a (B)^b
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2. 395 views
Calculate the energy needed to produce 10 moles of Cl2O7 using this balanced equation.2Cl +70+ 100kCal==2ClO7 please explain
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2. 661 views
I have a regular octagon with a radius of 9.I have split the 8 pie slices into right angles--leaving angles 90, 67.5, and 22.5.
1. 2 answers
2. 582 views
Make the conversion8.5 x10^2 cal to Calorie 4.5x10^-1kj to calories
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2. 1,323 views
Ould you please offer me some insight to this,Calculate the hydrogen ion concentration (H+) for the aqueous solution in which
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2. 632 views
Then the answer would be 4828 grams, right. I was using 2 molecules of SO4.What is the mass of Na2SO4 needed to make 8.5L of 4.0
1. 1 answer
2. 430 views
What mass of Na2SO4 is needed to make 8.5L of 4.0M solution? Is the answer 7480 grams?
1. 1 answer
2. 463 views
What is the maximum amount of KCl that can disolve in 500 g of warer? The solubility of KCl is 34g/100 g H2O at 20 degrees C.
1. 1 answer
2. 611 views
Dr Bob,Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question
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2. 555 views
In the red cabbage lab, we just took the cabbage juice and in 5 separate cups mixed it with 5 different liquids, ex: coke, milk,
1. 2 answers
2. 976 views
Explain the chemical changes that occur in the red cabbage lab that changes the color of the cabbage juice.I know it has
1. 1 answer
2. 557 views
what chemical changes are responsible for the color changes in the red cabbage lab?
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2. 586 views
What steps take place during DNA replication
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2. 506 views
I am very sorry. What does the adverb very modify
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2. 2,035 views
White House pets become almost as well known as their owners,what type o verb is become?
1. 6 answers
2. 1,491 views
Whe Abe Lincoln was president, he had a turkey.what type of pronoun is he?
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2. 480 views
Teddy Roosevelt kept a pet snake. What type of noun is snake.
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2. 1,203 views
compare and contrast Rational (formal) model for strategy- emergent strategy
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2. 494 views
prepare HR plan for the production and line department
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2. 375 views
Created a nutritional care plan for the client.Included an evaluation of nutritional risk, listing of interventions, and
1. 3 answers
2. 661 views
what does hue mean?a. personality b. color c. pattern d. debt
1. 7 answers
2. 563 views
in the poem "road not taken" what has worn the roads about the same?
1. 15 answers
2. 799 views
Identify at least two actions of the leader yongle that benefited orprotected the people. Please help me or give me a website
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2. 496 views
What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant
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2. 4,527 views
Your muffler factory claims to manufacture mufflers with a lifespan of more than 10000 miles of usage. A consumer group tests
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2. 540 views
Kyle got in his car and started driving toward his grandmother's house. After driving for 1 hour and 47 minutes, Kyle took a
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2. 644 views
David drew a scale drawing of a table.The real table is 12 feet long.I measured out in inches that the height was 1/2 and the
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2. 516 views
When James drove to a concert last night, it took him 3 hours and 30 minutes. He averaged 60 miles an hour on the way there. How
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2. 406 views
An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep in
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2. 553 views
Compare the sensory pathways to the brain for gustatory and olfactory sensations.
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2. 446 views
having problems with a "gerund" worksheet
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2. 500 views
what is the volume of a cube with a base area of 76cm2 (squared) and height 8 cm?
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2. 319 views
harriet and harry got jobs at the bumblo gum factory as bubblegum testers. for every bubble they blow they get 50 cents. harriet
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2. 400 views
Justin paddles his kayak 6 miles upstream in 1,5 hours. he turns around and paddles downstream, the same distance, in only 1
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2. 563 views
An electron gun is a device that sets up an electric field between two plates. The electrons start on the negative plate and
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2. 499 views
How do i subtract integers? Having trouble with problems like -14-(-5)-8
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2. 361 views
1. |x^2-3x+3|=32. |x^2+2x+1|=-4 3. |3x+2|+3=0
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2. 257 views
an open box is to be made from a piece of metal 16 by 30 inches by cutting out squares of equal size from the corners and
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2. 7,828 views
For the sequence an=6+5*(n-1),its first term is__??__ ; its second term is__??__ ; its third term is__??__ ; its fourth term
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2. 449 views
A farmer with 2000 meters of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does
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2. 4,317 views
The number is even. Clue 2 The number is divisible by 3. Clue 3 The number is a multiple of 7? what is this?
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2. 405 views
A biologisst reports a confidence interval of (3,7,5,5) when estimating the mean height ( incentimeters)Of a sample of
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2. 343 views
simplify:(x(1/2)(x^2+1)^-1/2(2x)-sqrtx^2+1)/(x^2)
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2. 341 views
can someone explin how blood clotting, immune response, allergic reaction, and hormone release interrelate. I have been
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2. 453 views
Any powers not specifically granted to the federal goverment in the constitution
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2. 417 views