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lulu

Questions (139)

lenaane la metswedi
1. 1 answer
2. 13 views
Use the drop-down menu to complete the sentence.Many of the achievements of the ancient Indus Valley civilization was due to
1. 1 answer
2. 344 views
What group was in the highest caste?A. Dalits B. rulers and warriors C. priests D. landowners and merchants
1. 1 answer
2. 228 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. 150 views
If the domain of the function y=4x+1 is 0≤x≤10, what is the function’s range?
1. 2 answers
2. 347 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. 1,033 views
what is 1:56:20+1:01:13+1:50:05
1. 1 answer
2. 405 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
1. 1 answer
2. 709 views
Which factor should be included in a model of energy flow into the atmosphere?variations in local temperatures places
1. 1 answer
2. 3,099 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
1. 2 answers
2. 471 views
Which factor should be included in a model of energy flow into the atmosphere?variations in local temperatures places
1. 3 answers
2. 2,093 views
Scientists believe that the (Milankovitch cycles, tilt of the earths axis, sea levels, low temperature) explain why Earth’s
1. 1 answer
2. 1,406 views
Why does traditional Chinese medicine affect worldwide wildlife populations?A.Traditional Chinese medicine is against the law in
1. 5 answers
2. 1,075 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.
1. 7 answers
2. 500 views
"City residents affected by health problems from the plant’s toxic emissions prompted the government, for the first time, to
1. 6 answers
2. 721 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
1. 3 answers
2. 1,174 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
1. 2 answers
2. 1,882 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)
1. 2 answers
2. 985 views
in the middle circle have rectangle with length 12 and wide 5, find shaded area between rectangle and circle
1. 2 answers
2. 549 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
1. 2 answers
2. 593 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?
1. 1 answer
2. 324 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.
1. 1 answer
2. 745 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
1. 1 answer
2. 489 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
1. 1 answer
2. 1,335 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. 1,310 views
Is this balanced properly2H2O2----> 2H2O +O2 Thank you for the reactions of zinc and acetic acid. REAL QUESTION, if I was to rub
1. 1 answer
2. 657 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?
1. 1 answer
2. 453 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. 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. 523 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. 494 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
1. 1 answer
2. 631 views
Back to the atomic emmission spectrum and the atomic theory.in the 1900s, scientists observed that when a gaseous element, such
1. 1 answer
2. 723 views
Explain how understanding of the atomic emmission spectrum led to developement of the atomic theory.The emmissions spectrum for
1. 3 answers
2. 1,263 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
1. 1 answer
2. 688 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
1. 1 answer
2. 561 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. 713 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. 725 views
Is the atomic mass or atomic weight on the periodic table written in grams.
1. 2 answers
2. 664 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.
1. 0 answers
2. 360 views
Could you pls check this time line1, king George issues Proclamation of 1763 2, stamp act 3. Sons of Liberty 4. Boston Massacre
1. 1 answer
2. 679 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. 633 views
the Pythagorean theorema square + b square = c square a square + x square = 4 square how to find x square?
1. 2 answers
2. 480 views
what is the smallest number that 54 can be multiplied by to give a perfect square?
1. 1 answer
2. 2,812 views
A cash register contains only ten dollar and fifty dollar bills. It contains three times as many ten dollar bills as fifty
1. 2 answers
2. 1,358 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. 526 views
Sig figs33.067. 5 sig figs .0908. 3sig figs 1099. 4 .0087. 2 check pls
1. 1 answer
2. 739 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
1. 1 answer
2. 352 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. 596 views
Confused, conflicting textswhen you are finding % error for density formula: experienced value-accepted value/ accepted value
1. 2 answers
2. 492 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
1. 2 answers
2. 1,020 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. 533 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. 660 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. 3,891 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. 570 views
Dr BobCould you check this please? Voltaic cell---cathode is positive, accepts electrons, reduced, anode is negative, gives up
1. 1 answer
2. 534 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. 563 views
What is the equilibrium constant for2A + 3B (double arrow) =4C Is it (C)^c/ (A)^a (B)^b
1. 1 answer
2. 423 views
Calculate the energy needed to produce 10 moles of Cl2O7 using this balanced equation.2Cl +70+ 100kCal==2ClO7 please explain
1. 1 answer
2. 690 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. 606 views
Make the conversion8.5 x10^2 cal to Calorie 4.5x10^-1kj to calories
1. 2 answers
2. 1,344 views
Ould you please offer me some insight to this,Calculate the hydrogen ion concentration (H+) for the aqueous solution in which
1. 1 answer
2. 658 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. 450 views
What mass of Na2SO4 is needed to make 8.5L of 4.0M solution? Is the answer 7480 grams?
1. 1 answer
2. 482 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. 636 views
Dr Bob,Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question
1. 2 answers
2. 577 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. 999 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. 580 views
what chemical changes are responsible for the color changes in the red cabbage lab?
1. 1 answer
2. 604 views
What steps take place during DNA replication
1. 1 answer
2. 523 views
I am very sorry. What does the adverb very modify
1. 1 answer
2. 2,064 views
White House pets become almost as well known as their owners,what type o verb is become?
1. 6 answers
2. 1,512 views
Whe Abe Lincoln was president, he had a turkey.what type of pronoun is he?
1. 1 answer
2. 497 views
Teddy Roosevelt kept a pet snake. What type of noun is snake.
1. 1 answer
2. 1,224 views
compare and contrast Rational (formal) model for strategy- emergent strategy
1. 1 answer
2. 511 views
prepare HR plan for the production and line department
1. 1 answer
2. 388 views
Created a nutritional care plan for the client.Included an evaluation of nutritional risk, listing of interventions, and
1. 3 answers
2. 686 views
what does hue mean?a. personality b. color c. pattern d. debt
1. 7 answers
2. 583 views
in the poem "road not taken" what has worn the roads about the same?
1. 15 answers
2. 817 views
Identify at least two actions of the leader yongle that benefited orprotected the people. Please help me or give me a website
1. 1 answer
2. 520 views
What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant
1. 2 answers
2. 4,556 views
Your muffler factory claims to manufacture mufflers with a lifespan of more than 10000 miles of usage. A consumer group tests
1. 0 answers
2. 566 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
1. 1 answer
2. 674 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
1. 1 answer
2. 541 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
1. 1 answer
2. 438 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. 576 views
Compare the sensory pathways to the brain for gustatory and olfactory sensations.
1. 0 answers
2. 464 views
having problems with a "gerund" worksheet
1. 1 answer
2. 517 views
what is the volume of a cube with a base area of 76cm2 (squared) and height 8 cm?
1. 1 answer
2. 338 views
harriet and harry got jobs at the bumblo gum factory as bubblegum testers. for every bubble they blow they get 50 cents. harriet
1. 2 answers
2. 426 views
Justin paddles his kayak 6 miles upstream in 1,5 hours. he turns around and paddles downstream, the same distance, in only 1
1. 1 answer
2. 603 views
An electron gun is a device that sets up an electric field between two plates. The electrons start on the negative plate and
1. 1 answer
2. 534 views
How do i subtract integers? Having trouble with problems like -14-(-5)-8
1. 1 answer
2. 378 views
1. |x^2-3x+3|=32. |x^2+2x+1|=-4 3. |3x+2|+3=0
1. 1 answer
2. 271 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
1. 1 answer
2. 7,852 views
For the sequence an=6+5*(n-1),its first term is__??__ ; its second term is__??__ ; its third term is__??__ ; its fourth term
1. 0 answers
2. 473 views
A farmer with 2000 meters of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does
1. 2 answers
2. 4,363 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?
1. 1 answer
2. 422 views
A biologisst reports a confidence interval of (3,7,5,5) when estimating the mean height ( incentimeters)Of a sample of
1. 0 answers
2. 363 views
simplify:(x(1/2)(x^2+1)^-1/2(2x)-sqrtx^2+1)/(x^2)
1. 1 answer
2. 355 views
can someone explin how blood clotting, immune response, allergic reaction, and hormone release interrelate. I have been
1. 1 answer
2. 475 views