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John
Questions (4,794)
y=sqrt(4-x^2)
I have a trouble finding range, I used the inverse to find worked out to be y=2 but the answer is [0,2] my question
1 answer
426 views
The supplement of an angle is 12 less than 4 times the complement of the angle. What is the measure of the angle?
1 answer
1,234 views
What is a potential negative outcome when the government seeks to ensure specific market outcomes?
decrease in business tax
3 answers
1,065 views
The balanced equation for the combustion of butane, C4H10, is
2 C4H10(g) + 13 O2(g) → 8 CO2(g) + 10 H2O(g) Calculate the moles
1 answer
2,427 views
The balanced equation for the reaction of aluminum metal and chlorine gas is
2Al(s) + 3Cl2(g) → 2AlCl3(s) Assume that 0.40 g Al
1 answer
1,820 views
Ethanol, used in alcoholic beverages, can be produced by fermentation of sucrose. The balanced equation for the fermentation
1 answer
2,524 views
Sulfuric acid is commonly used as an electrolyte in car batteries. Suppose you spill some on your garage floor. Before cleaning
1 answer
1,332 views
Hey...so im having trouble with this question.....cant seem to figure it out:
The radar screen of an airport control tower shows
3 answers
564 views
John and Ernest are close friends.ernest is 5 years younger than John. in ten years John's age will be 3 times Ernest age. Find
2 answers
766 views
A tool room 28 feet by 35 feet was enlarged to the dimensions of 28 feet by 49 feet. By what percentage did the room size
2 answers
734 views
Murimi and naliaka both had each 840 tree seedlings.murimi planted equal nimber of seedlings per row in x rows while naliaka
2 answers
532 views
I'm so confused. I keep trying to do this on paper, but I keep coming up with different answers. Can you please walk me through
1 answer
428 views
What are petro-economics?
A- the economics of countries who have quarries of marble and granite B- theoretical economic systems
2 answers
758 views
Which explains why American and British intelligence agencies sponsored a coup to overthrow Iranian Prime Minister Mohammad
1 answer
1,143 views
Which explains how the Cold War affected politics in Nicaragua in the 1980s?
A- The country was blockaded by NATO because of its
1 answer
2,354 views
An urn contains 10 red balls, 6 green balls, 15 orange balls, and 14 blue balls.
If one ball is randomly drawn from the urn, what
1 answer
1,072 views
What is the (width in feet) of a rectangular parking lot which covers 21,294 square feet and is 3 1/2 times as long as it is
1 answer
561 views
Two crews were assigned the job of setting a total of 960 conduit hangers. By the time the job was completed, one crew had set
2 answers
643 views
How were William Lloyd Garrison and the Rev. Elijah Lovejoy alike?
1 answer
485 views
The archway to the entrance of an art gallery can be modeled by y = -1/3(x-5)(x+5), where x and y are measured in feet. The
1 answer
961 views
Recipe that yields 12 cups of soup cost for 28 ounces of beef broth how many ounces of beef broth does do you need to make 18
1 answer
1,524 views
Verify the identity shown below
1/(sec(theta) - tan theta) = sec(theta) + tan theta
1 answer
721 views
How many 4 digit codes (0-9) no repetition and 5 has to be the first digit.
1 x 9 x 8 x7 first digit =5 one choice now 9 digits
2 answers
526 views
Seth says the length of a pizza box is 12 inches. He wants to know what the length is in feet. Complete the sentence. The length
1 answer
471 views
A gas was collected in a 10.0 L cylinder under a pressure of 730 mmHg while at 30.0oC. Determine each of the following:
Convert
1 answer
583 views
I use the construction tool a lot in my class, and I was wondering how to use it to construct a rectangle that has a length that
3 answers
373 views
Use the given function value(s), and trigonometric identities(including the cofunction identities), to find the indicated
2 answers
1,220 views
A cold night is followed by an overcast morning. When this happens, the cool air at the surface and any pollutants it contains
1 answer
1,109 views
Your family purchases a house that was built in 1922. It is a bit of a "fixer-upper", but it has a lot of potential.
1 answer
895 views
Hello guys, any help is appreciated. Thank you so much
3. The graph compares the 1s orbital energies for the F atom (Z = 9), the
3 answers
910 views
A ray separates a right angles into two acute angles.One of the acute angles measures 37°.what is the measure of the other
7 answers
1,152 views
I have a red, green and blue ball.
They can be repeated I have 4 bags to put the balls into. I have to use all 3 colors. so I
2 answers
494 views
If the difference of two numbers is a and the smaller number is x what is the greater number
1 answer
1,907 views
The sum of two numbers subtracted from twice the sum of those numbers
1 answer
372 views
Points A, B, C, and T are in space such that each of TA, TB, and TC is perpendicular to the other two. If TA = TB = 12 and TC =
1 answer
336 views
A flagpole casts a shadow 27 feet long. At the same time of day, a person standing nearby casts a shadow of 8 feet long. If the
1 answer
755 views
Answer using Dalton’s Law of partial pressures and the combined gas law: A 40.0 mL sample of hydrogen is collected by water
1 answer
538 views
Points A, B, C, and T are in space such that TA, TB, and TC are perpendicular to the other two. If TA = TB = 12 and TC = 6, then
4 answers
3,416 views
The heights of boys at a particular age follow a normal distribution with mean 150.3 and standard deviation 5cm. Find the
2 answers
825 views
Find set A and B (neither are empty)
we want A is a subset of B to be true and A is an element of B is true. A ={3} and B = {3,
2 answers
438 views
A parking lot has 916 parking spaces that are shaped like parallelograms. The base of each space is 10 feet, and the height of
6 answers
1,109 views
A quarter-circle with radius $5$ is drawn. A circle is drawn inside the sector, which is tangent to the sides of the sector, as
1 answer
4,342 views
Part A: Given X (4, -7), what are the coordinates of X'' if X'' = R y=1 (R x=2(X))?
Part B: Given A''' (-4, -6) and A''' = Ro180
3 answers
775 views
Part A: Given X (4, -7), what are the coordinates of X'' if X'' = R y=1 (R x=2(X))?
Part B: Given A''' (-4, -6) and A''' = Ro180
0 answers
440 views
Point M is the midpoint of line PQ. The coordinates of P and M are:
P: 5, (-2) M: 11, (-10) Given this info, what are the
3 answers
1,376 views
Can someone help me combine opposing equations? Ex: 5x+7 and 6x+21 make 11x+28. But only, what if the equations had a negative
1 answer
315 views
Can you combine positive and negative like terms together? If so, can you explain how? That would be amazing.
3 answers
980 views
I have a question that does not make sense to me and would like some help with it. I don't need the answer, only the way to
4 answers
592 views
How would I calculate if these lines on a number grid make a square? I just need the process, and I can figure out the answer to
2 answers
393 views
You decide to buy a $25,000 car and can afford to bring a down payment of $3,000. The dealership offers you a loan with a term
0 answers
439 views
Hey. I was wondering if someone could help me with this question? I asked my teacher to explain it to me, but I still don't get
4 answers
579 views
How do I fix this equation?
r= v^2/(g)tan( )
5 answers
585 views
Sales of snowmobiles are seasonal. Supposed sales in Camrose, Alberta are approximately by S=200+200cos[pi/6(t+2)], where t is
1 answer
713 views
If the centripetal force on an object in uniform circular motion is increased, what is the effect on (a) the frequency of
4 answers
4,125 views
There is this guy named Utkarsh who wants an answer to this one question:
If 10 Murzakus all travel at a velocity of 10 m/s for
7 answers
712 views
What does max(m,n) = 2 mean where m and n are elements of 2 different set.
What does min(m,n) = 2 mean What does min(m,1) mean I
2 answers
321 views
How can the Binomial Theorem be useful in helping to prove and use polynomial identities?
can someone please explain this to me
2 answers
1,337 views
Why must not the condensed water drip into flask in finding molecular weight of volatile liquids?
1 answer
852 views
hey guys, im having trouble answering this question. is there any way you can help me?
During a lab experiment demonstrating the
1 answer
967 views
Two workers are sliding 360 kg crate across the floor. One worker pushes forward on the crate with a force of 380 N while the
2 answers
4,149 views
Imagine two billiard balls on a pool table. Ball A has a mass of 7 kilograms and ball
B has a mass of 2 kilograms. The initial
1 answer
563 views
What is the parametrisation through the points (9,-2), (3,5)
Then Eliminate the parameter for the line
1 answer
353 views
Why are the Galapagos Islands important?
There is more than one correct answer choice. Be sure to select all that apply. The
3 answers
1,518 views
What items do the Mapuche make that still have great value to the Spanish?
There is more than one correct answer choice. Be sure
5 answers
3,623 views
Northeastern Pennsylvania is known for its large supply of coal. Based on this fact, what can you infer about how Northeastern
1 answer
744 views
True or False
(lna)5c = 5clna logab^4=(logab)^4 ln 5√xy=−5(lnx+lny) lne^3=lne^5−lne^2
1 answer
719 views
Solve for the following problem: -43 + 17 =
60 26 -26* -60 I’m the answer is -26 but what are the rest of the answers for the
2 answers
1,126 views
What are the uses of IT in timing and control?
1 answer
365 views
Abath contains 100kg of water at 60°C.Hot and cold taps are then turned on to deliver 20kg per minute each at temperatures of
1 answer
1,455 views
What is the rule called when you distribute and exponent to the numerator and denominator of a fraction? (a/b) squared = a
7 answers
1,550 views
if y=cos^2x-sin^2x, then y'=
3 answers
3,313 views
The All-Stars softball team needs to purchase new uniform jerseys. The manager uses the inequality d≤750 to determine how much
3 answers
1,188 views
I need help with at least these two questions.
Which of the following would be a logical insertion at the beginning of Sentence
3 answers
1,994 views
A meter rule us found at 48cm mark when a body of mass 60g is supende 6cm mark the balance is found to be at 13cm mark class
2 answers
519 views
A builder intends to construct a storage shed having a volume of 1000 cubic feet, a flat roof and a rectangular base whose width
3 answers
1,504 views
A long rectangular sheet of metal, 12 inches wide is to made into a rain gutter by turning up two sides at angles of 120° to
3 answers
1,060 views
What is the difference between percent abundance and relative abundance?
1 answer
448 views
How could you use a Leslie cube to investigate IR radiation emitted by different surfaces?
1 answer
407 views
A wave moves from material A to material B and bends towards the normal as it crosses the boundary. In which material does the
1 answer
479 views
Manuel, a sales agent,h has a basic salary of $18 000 and a commission of 20%on a sales above $80 000.if this total sales is
4 answers
1,497 views
6 baskets of apples each basket had 3 apples she used 8 apples to make applesauce how many apples are left
2 answers
751 views
I must write an allegory, and I know what that means. I’m having trouble figuring/brainstorming ideas on what to write about.
1 answer
501 views
How much energy is transferred each second to a 50W device?
2 answers
695 views
What does the variable ‘e’ stand for in the equation for energy in an elastic potential energy store?
0 answers
461 views
How did you get 54
1 answer
55 views
Which statement about the combustion of propane (C3H8) is not correct?
C3H8 + 5O2 = 3CO2 + 4H2O
2 answers
1,407 views
In what area of medicine did the Incas make the most notable advances?
splinting of broken bones
3 answers
2,375 views
Bethany, who weighs 420N, lies in a hammock suspended by two ropes tied to two trees. The left rope makes an angle of 45 degrees
5 answers
5,694 views
Calculate the pH of a solution when 23.00 mL of 0.27 M Acetate is titrated with 19.35 mL of 0.25 M HCl. (Kaacetic acid = 1.75 x
1 answer
425 views
responsibilities of the road users to ensure safety for one another
1 answer
924 views
If a proton were traveling the same speed as electrons in a TV picture tube (about 7.8 107 m/s), what would its de Broglie
0 answers
847 views
What is the maximum mass (in grams) of each of the following soluble salts that can be added to 120 mL of 0.050 M BaCl2 without
1 answer
1,470 views
(1) It is unclear whether a benign use of animals in research is possible or, irf possible, whether scientists could be
1 answer
772 views
Volume of a clinder =10 calculate the heigh of the volume
1 answer
456 views
Do the ratios
6 4 and 51 24 form a proportion?
1 answer
382 views
Ganymede is a moon of jupiter mass=1.90 x 10^27 kg. it orbits jupiter in a circle of radius 1.07 x 10^9 m. what is ganymede's
1 answer
929 views
astronomers believe the moon used to be much closer to the earth mass=5.98 x 10^24 kg. When it was at 1.92 x 10^8, half its
1 answer
844 views
In the quote "The slave went free stood for a brief moment in the sun then moved back again toward slavery," Does anyone know
2 answers
697 views
Byron Cabell forms a corporation named Cabell, Inc., following all the proper legal formalities in the formation process. Cabell
1 answer
461 views
Two ice skaters are practicing a lift. They skate directly towards each other. The woman has a mass of 60 kg and a velocity of 3
9 answers
2,787 views
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