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Dani

Questions (192)

An N>1 is abundant if the sums of its proper divisions are greater than M. calculate the smallest abundant integer.Un entero n>
1. 1 answer
2. 104 views
Mg+2HCl=MgCl2+H2When 1.50 grams of magnesium is combined with 100.0mL of HCL to make 101.5mL of solution in a coffee-cup
1. 1 answer
2. 345 views
A gas occupies a volume of 2.4L at 740 torr pressure. What pressure will it occupy at 1.5atm?
1. 3 answers
2. 277 views
Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to
1. 1 answer
2. 1,098 views
A diver with mass 55kg jumps 0.8m into the air. She lands on a diving board that bends down a deflection of 0.4m. What is the
1. 1 answer
2. 301 views
I really need help it's kinda long but not long and it's for American History.use the picture to help!!! Based on what you
1. 2 answers
2. 524 views
What is the average of the following five numbers? Report your answer to the correct number of significant figures.3.6, 3.51,
1. 1 answer
2. 305 views
What is the decimal that is equivalent to three and ten hundredths
1. 10 answers
2. 5,962 views
Since B=Ae^kt, Given that there are 350 bacteria present initially and there are 1700 after 4 days , find the number present
1. 1 answer
2. 330 views
Show that the function f(x) e^xcosx has exactly one turning point when x is between 0 and 90 degrees. Determine the nature of
1. 1 answer
2. 457 views
a) (x-1)root(5-x) dxb) x^2cos3x dx c)(1/x^3) lnx dx
1. 1 answer
2. 336 views
Simplify (1+iroot3)^9 + (1-iroot3)^9 in x+iy form
1. 1 answer
2. 270 views
If z=costheta +isintheta, prove thata) z = 1/z b) z+1/z = 2costheta c) z-1/z=2isintheta Hence ,deduce that z^2-1/z^2
1. 2 answers
2. 919 views
how does word choice matter? Consider academic voice as well as the dialect words used in Amigo Brothers.
1. 1 answer
2. 416 views
OABCDE is a right triangular prism with OA = 2units , OD= 2units and AB = 4 units. The unit vectors i,j and k are parallel to
1. 3 answers
2. 503 views
Two car drive along the same road towards each other one at 15m/s and the other 12 m/s. Each car horn sounds at 256 hz.
1. 4 answers
2. 950 views
If you had a sample containing 55 alpha particles, how many protons would be present in that sample?
1. 1 answer
2. 1,265 views
A rocket launched from earth with a rest mass of 150,000Kg moves at 2.8x10^8 m/s during a voyage that takes 1.3 years, according
1. 0 answers
2. 556 views
Multiply (x-5/4x+8)*(12x^2+32x+16)A. (3x+2)/4(x-5) B. (x-5)(3x+2)/4 C. (x-5)(3x+3) D. (x-5)(12x+8) Please help me solve this
1. 50 answers
2. 4,823 views
Simplify 5x^3/7x^3+x^4Is the answer 5/7+x where x is not equal to 0,-7?
1. 3 answers
2. 3,974 views
Simplify x/6x-x^2I know that the answer is 1/6-x but the answers look like this: A. 1/6-x where x is not equal to 0,6 B. 1/6-x
1. 3 answers
2. 859 views
The width (w) of a rectangular pool is x+4. The area (A) of the pool is 2x^3 - 29x + 12. What is an expression for the length of
1. 5 answers
2. 3,717 views
How are stem changing ir verbs different from stem changing ar and er verbs in the present subjunctive?
1. 3 answers
2. 1,224 views
Mrs lao bought 5 blouses and 6 skirts for $108. Three skirts cost as much as 2 blouses. How much did she pay for the 6 skirts?
1. 1 answer
2. 534 views
Minah and rohana had a total of $338 at first. After minah’s mother gave her another $49 and rohana spent half of her money,
1. 1 answer
2. 1,174 views
Mr lee is 56 years old. His nephew, sam, is 4 years old. In how maby yearsâ€™ time will mr lee be 5 times as old as his
1. 6 answers
2. 2,968 views
In Chile celebrations often revolve around:A) an asado B) a pebre C) a manteo D) a lúcuma I know that an asado is a type of
1. 6 answers
2. 8,210 views
The ratio of the number of men to the number of women in a club is 3:7.There are 12 more women than men.How many members are
1. 1 answer
2. 1,036 views
Use the data in the table to calculate the equilibrium constant for the following reaction.HCOOH(aq)+ OH −(aq) equilibrium
1. 1 answer
2. 3,336 views
Hi! I quickly just need to know what is an irrational number? Thanks! ~Dani
1. 5 answers
2. 472 views
Which type of context clue can be used to determine the meaning of the capitalized word?As the winning team rushed onto the
1. 2 answers
2. 1,278 views
I have 3 1-6 cubes looking for different ways to roll the sum of 12, How many ways will it be?
1. 6 answers
2. 968 views
What is an equation of a parabola with the giveb focusFocus:(-2,0)
1. 2 answers
2. 397 views
The president is the author of the nation's public policies in his or her role ofA commander in chief B chief legislator C chief
1. 3 answers
2. 1,682 views
What is the sum of the arithmetic series 5 (sigma sign) n-1 (3n-2)?
1. 8 answers
2. 6,798 views
How far from the wall must you place a ladder of length 12m. if the ladder is to touch a point 10m above the ground?
1. 2 answers
2. 1,052 views
Solve the inequality. Explain all steps and identify the properties used.3a-4 less than or equal to 5 My answer: First, you add
1. 32 answers
2. 7,965 views
Hi! I don't understand this Math problem and I was wondering if I could have some help? It would be greatly appreciated! Thanks!
1. 2 answers
2. 614 views
How do party whips influence legislation??Please help!!
1. 2 answers
2. 1,220 views
Calculate the work done (in joules) when 5.0 mole of water is frozen at 0°C and 1.0 atm. The volumes of five moles of water and
1. 1 answer
2. 698 views
Calculate the heat of decomposition for this process at constant pressure and 25°C. (Look up the standard enthalpy of formation
1. 0 answers
2. 990 views
Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 2.
1. 1 answer
2. 1,690 views
Ethanol (C2H5OH) and gasoline (assumed to be all octane, C8H18) are both used as automobile fuel. If gasoline is selling for
1. 1 answer
2. 1,429 views
Hi. I need to check my answers and I would hate to get them wrong because of one little mistake. Thanks!1. An argumentative
1. 9 answers
2. 4,352 views
In 'first confession' Gran is described as a ?A. Flat character < B. Round character C. Stock character D. Antagonist < I think
1. 1 answer
2. 1,294 views
A 45-kg person drinks 390. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk
1. 1 answer
2. 547 views
A 77.40 kg piece of copper metal is heated from 19.6°C to 337.3°C. Calculate the heat absorbed (in kJ) by the metal.
1. 1 answer
2. 553 views
A sheet of gold weighing 11.4 g and at a temperature of 15.6°C is placed flat on a sheet of iron weighing 24.2 g and at a
1. 1 answer
2. 643 views
A 0.1219-g sample of solid magnesium is burned in a bomb calorimeter that has a heat capacity of 1769 J/°C. The calorimeter
1. 2 answers
2. 732 views
According to "Life Without Gravity" why can astronauts' muscles become weak?a. Without gravity, the blood is rerouted from the
1. 45 answers
2. 8,531 views
Which of the following best describes an expository essay?a. An essay that uses casual, conversational language. b. An essay
1. 4 answers
2. 2,562 views
What is the part of the story in which the conflict eases?
1. 45 answers
2. 2,938 views
1/2 divided by 1/2=1?
1. 2 answers
2. 340 views
The city highway department bought 3/4 tons of salt to put on the road when it snows. They have used 2/7 of salt. How many tons
1. 10 answers
2. 3,215 views
What is...-1/2+1/3=_____ -1 1/5+-(-6 1/2)=_____ 5/8-(-2/8)=_____ -9/10-2/5=_____ 6 3/5-(2 1/5)=_____
1. 4 answers
2. 393 views
One isotope of a nonmetallic element has mass number 16 and 7 neutrons in the nucleus. The anion derived from the isotope has 10
1. 1 answer
2. 1,506 views
The diameter of a neutral neon atom is about 1.4 ✕ 10^2 pm. Suppose that we could line up neon atoms side by side in contact
1. 1 answer
2. 841 views
Quick question:What is 9 squared written in standard form? It should be 81 correct?
1. 6 answers
2. 1,948 views
1. For centuries, Arab Muslims had generally welcomed Christian pilgrims to the Holy Land. Which group later took control of the
1. 11 answers
2. 922 views
Use implicit differentiation to find an equation of the tangent line to the curve at the given pointx^2+2xy+4y^2=12. Point
1. 2 answers
2. 995 views
How do I write 0.8% as a fraction in lowest terms?I thought I put .8 over 10 and then multiplied by 10/10 to get rid of the
1. 2 answers
2. 936 views
A 2 by 6 is 1 1/2 in thick. how high would a stack of 2 by 6 boards be if the stack is 10 boards high? Express your answer in
1. 1 answer
2. 729 views
a person horizontally pushes a 25 kg couch. Applied force is 18N and average resistive force is 7N. its pushed from rest to a
1. 2 answers
2. 922 views
A boy swings a yo-yo around his head with a force of 50N what is the gravitational force of the yo-yos mass and distance is
1. 2 answers
2. 490 views
Why is the United States often referred to as the melting pot?-Various cultures from many countries have "melted" together to
1. 5 answers
2. 1,435 views
A car is stationary at a stop sign when it is hit directly from behind by a truck of mass 3000kg which was travelling at a speed
1. 1 answer
2. 576 views
A car is stationary at a stop sign when it is hit directly from behind by a truck of mass 3000kg which was travelling at a speed
1. 0 answers
2. 601 views
Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new iron sample? Please show
1. 1 answer
2. 657 views
Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Please
1. 2 answers
2. 648 views
If a radioactive nucleus alpha decays to yield a sodium24 nucleus in 14.8 hours, what was the identity of the original nucleus?
1. 1 answer
2. 741 views
AP Chem ----Which type of radiation is emitted when chromium 51 decays into manganese 51? Show the nuclear equation that
1. 2 answers
2. 906 views
AP Chem ---PbS + O2 = PbO + SO2 Balance the equation and write a short paragraph explaining the electron transfers that happen.
1. 1 answer
2. 666 views
AP Chem -Which element is oxidized in the following reaction: CuO(s) + H2 (g)  Cu(s) + H2O (l)
1. 2 answers
2. 666 views
Which salt would result from the acid-base reaction of phosphoric acid and potassium hydroxide?I already know I will have to
1. 1 answer
2. 594 views
Let f(x)=(lnx)^4f'(x)=4(ln(x))^3/x what is f'(e^2)=?
1. 1 answer
2. 404 views
For what values of a and b is the line 3x+y=b tangent to the curve y=ax^3 when x=–3?
1. 1 answer
2. 2,114 views
For the reaction3 Mg + N2 → Mg3N2 , what is the maximum amount of Mg3N2 which could be formed from 6.66 mol of Mg and 9.34 mol
1. 2 answers
2. 1,305 views
Previously asked:the length of a rectangular prism is increasing at a rate of 8 cm/s, its width is increasing at a rate of 3
1. 1 answer
2. 544 views
the length of a rectangular prism is increasing at a rate of 8 cm/s, its width is increasing at a rate of 3 cm/s, and its height
1. 1 answer
2. 660 views
A ferris wheel has a diameter of 50 meters. If point A is at the lowest point of the ferris wheel, 0 meters. What is the height
1. 1 answer
2. 515 views
How many minutes would it take Rachel to jog 3 miles if she jogs 1/15 mile every minute?
1. 3 answers
2. 1,642 views
John has 1/4 yard of fabric. He cuts it into 3 equal pieces . What fraction of a yard is each piece of fabric? Choices are A.
1. 5 answers
2. 2,778 views
1) in what context was the crtc and its CanCom regulations established? Describe the rationale for thw creation of the crtc.I
1. 1 answer
2. 569 views
The formula for the velocity of an object is , where v is the velocity of the object, d is the distance traveled, and t is the
1. 3 answers
2. 629 views
An inclined plane is used to raise a 100 kg box to a height of 5 m. How long must the inclined plane be if a force of 250 N is
1. 1 answer
2. 666 views
A violin string vibrates at 298 Hz when unfingered. At what frequency will it vibrate if it is fingered one sixth of the way
1. 1 answer
2. 980 views
An object with mass 2.0kg is attached to a spring with spring stiffness constant 240N/m and is executing simple harmonic motion.
1. 1 answer
2. 640 views
Libby pulls a 3.9kg box to the right with a force of 200 n at a 45 degree angle relative to the horizontal along a frictionless
1. 1 answer
2. 502 views
Although the VSEPR theory is correct in predicting that CH4 is tetrahedral, NH3 is trigonal pyramidal,and H2O is bent, the HNH
1. 1 answer
2. 1,256 views
Oscar picked 12 apples. He gave 1/3 of the apples to Gil and 1/3 of the apples to Becky. How many apples did each of them?
1. 1 answer
2. 859 views
Which simple machine does not change the direction of a force?
1. 1 answer
2. 609 views
Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2)A) is f an even or odd function? Justify answer. B) find the domain
1. 0 answers
2. 375 views
Find the values of the trigonometric functions of è from the information given.cot è = 1/2 , sin è < 0
1. 1 answer
2. 417 views
How fast is a city on the earth's equator (such as Singapore) moving due to our planet's daily spin on its axis?
1. 0 answers
2. 456 views
A test car travels in a straight line along the axis. The graph in the figure shows the car's position as a function of time
1. 0 answers
2. 1,243 views
Solve this proportion-4/x+3=8/10
1. 1 answer
2. 381 views
A car travels on a highway at an average speed of 65 miles per hour. What was the speed in feet per second?(Remember- 1
1. 3 answers
2. 722 views
Solution of:An air plane ABC R=250m (x=30)the speed of the meachine is 450Km/h in A determine the accelartion supported by the
1. 0 answers
2. 380 views
2y-z--------- for x=-3, y=13, z=5 x
1. 6 answers
2. 306 views
A car of mass m = 1635 kg is pushed off a cliff of height h = 23 m. If the car lands a distance of 9 m from the base of the
1. 1 answer
2. 469 views

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