# Questions Asked onOctober 20, 2016

1. ## math

f(x) = 4x-5 and g(x) = 3x, find (fog)(x)

2. ## math

How many 3-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if repetition of digits is not allowed?

3. ## Spanish Homework

Usa la forma presente de ESTAR con el participio pasado del verbo entre paréntesis para completar cada oración. 1 La maleta ya ___(1)___ ___(2)___. (ABRIR) La maleta ya está abierta. 2 ¿ ___(1)___ ___(2)___ todos estos regalos? (DECLARAR) Están

4. ## coordinate geometry

find the equation of circle having centre in 1st quadrant, touching x-axis,having a common tangent y=3^1/2x+4 with the circle x^2+y^2+4x+4y+4=0 such that the distance between two circles along the x-axis is 3 units ?

5. ## Math

Three numbers form a g.p.if the first and third numbers are 5 and 245 respectively, find two possible values for the middle number.

6. ## Math

Find the 999th derivative of cos x. I got sin x.

7. ## Social Studies

1.Why Was Stephen Austin able to establish a colony in mexican territory. A.The Mexican Government gave him a land grant B.He Claimed the land for Himself C.The U.S. government gave him an Exemption D.The local farmers were generous

8. ## Algebra 2

The graph shows a probability distribution. Which probabilities are equal to 0.3? Select each correct answer. P(X≥3)

9. ## PHYSICS- PROJECTILE MOTION

A physics book slides off a horizontal table top with a speed of 1.90 m/s. It strikes the floor after a time of 0.410 s. Ignore air resistance. a) Find the magnitude of the horizontal component of the book's velocity just before the book reaches the floor.

10. ## algebra 1

Which type of function is represented by the table of values below? x y 1 4 2 16 3 64 4 256 5 1,024

11. ## Algebra 2

Given: 11-pound mixture of peanuts, almonds, and raisins Cost: peanuts - 1.5 per pound almonds - 3 per pound raisins - 1.5 per pound mixture: twice as many peanuts as almond; total cost of mixture is 21. a + p + r = 11 lbs a + 2a + r = 11 lbs 3a + r = 11 r

12. ## CALC

Find center of mass of the lamina that occupies the region D and has the given density function ρ. D is the triangular region with vertices (0, 0), (2, 1), (0, 3); ρ(x, y) = 5(x + y) mass=30 Find center of mass

13. ## physics need help

An object , constrained to move along the x-axis is acted upon by a force F(x)=ax + bx^2 where a=5N/m , b=-2m/s The object is observed directly from x=1m to x=3.0 m... How much work is done by the force?

14. ## Physics algebra and trig

A pair of fuzzy dice is hanging from the rearview mirror of a race car. As the car accelerates smoothly, the strings of the dice are tilted slightly toward the rear of the car. From the perspective of the driver, which one of the following statements is

1. Why was capturing Quebec so important to the British during the French and Indian War? (1 point) By gaining control of Quebec, the British could increase financial and military support from the colonists. By gaining control of Quebec, the British would

16. ## Math

Craig used the diagram to compute the distance from ferris to dunlap to butte. how much shorter is the distance directly from ferris to butte than the distance craig found? 14 mi 28 mi 70 mi*** 98 mi

17. ## math

a blacksmith has a rectangular iron sheet with the length of 10 cm. he has to cut out 7 circular disc of radius 1 cm. what is the minimum width of that rectangular sheet?

18. ## science

When there is a lot of friction in a machine, what is lowered and causes mechanical efficiency to be lowered

30. ## Math

Roy throws a flying disc, and it lands 30 meters away.The distance Anna throws the disc is times the distance Roy throws the disc.The distance Glen throws the disc is times the distance Roy throws the disc. Place the names in order from greatest to least

31. ## SOCIAL STUDIES

1. Which activity is part of both private and civic life? (1 point) learning about politics •• voting for a candidate going to sports games working at a bookshop 2. Why are elections necessary for good governance? (1 point) Elected officials can be

32. ## physics

a 700g solid cube having an edge of length 10cm floats in water how much volume of the cube is outside the water?

33. ## Core World History

Which is an accurate statement about Greek art and architecture? Greek art and architecture are characterized by asymmetrical, informal designs. Greek art is known for the use of a special purple paint made only in Greece? Greek art and architecture are

34. ## Social studies

How should the success of the united states be evaluated and measured? what tools or data should be used to do this? I have no idea what to say for this.

35. ## Math

the sum of two numbers is 21 five times the first number added to 2 times the second number is 66 find the two numbers

36. ## Social Studies

12. Which of the following excerpts is a grievance of the American colonists that was included in Declaration of Independence?

37. ## Math

adding and subtraction number using greatest common factors 940-420=? What is the GCF?

38. ## History

How did African Americans support the war effort? A:Slaves and free blacks fought for the Confederacy B:Enslaved African Americans spied on the Union troops and the Confederacy. C:By law, African Americans were forbidden from supporting the was effort on

39. ## Math

Walmart sells a case of 24 cans of diet coke for $6.88. Publix sells a 12 pack of diet coke for$3.99. Which is the best buy? I need help on this.

40. ## Physics

At what speed would a 50kg person have to run to have the same kinetic energy as a 1000kg auto traveling at 100 km/h? Help ASAP please!! Show work step by step along with the equation

72. ## social studies

Contrast and compare the cultures of native Americans who lived in the southwest with those who lived on the west coast or select two other tribes. My answer: The Native Americans that lived in the Southwest mainly fished and chopped down trees. The Native

73. ## maths

In a class of 38 students, each student studies at least one of the following subjects: French, Mathematics and History. The following table gives further details of the subject studied. French 9 Mathematics only 8 History only 1 French & Math. 7 French &

74. ## achieving success

The divine command theory is an example of

75. ## Math

adding and subtraction number using greatest common factors 121-22=? What is GCF of this problem?

76. ## Chemistry

I have a 0.6573g mixture of NaHCO3 and Na2CO3. Calculate the mass of NaHCO3 and Na2CO3 in the unknown mixture.Also calculate the mass of NaCl formed in the reaction of the mixture and HCl.

77. ## Physics

A ball of mass 2kg travelling in a straight line at 4ms^-1 is acted on by a force of 3N acting in the direction of motion for 5 seconds. What is the speed of the ball after 5 seconds?

78. ## Algebra

What is the slope Gas cost 3.29 per gallon. A function can be used to describe the cost to fill up a car.

79. ## Algebra

Country A has a growth rate of 2.6% per year. The population is currently 4,069​,000 and the land area of Country A is 33​,000,000,000 square yards. Assuming this growth rate continues and is​ exponential, after how long will there be one person for

80. ## Physics

A ball of mass 1.5kg is struck by a bat in the opposite direction to the motion of the ball. Before the impulse the ball is travelling at 16ms^-1 and the impulse of the bat on the ball is 50 Ns. Find the velocity of the ball immediately after the impact.

81. ## Physics

Two identical boxcars (m = 14866 kg) are traveling along the same track but in opposite directions. Both boxcars have a speed of 5 m/s. If the cars collide and couple together, what will be the final speed of the pair?

82. ## Physics

A vehicle of mass 600kg, moving at a speed of 30ms^-1 collides with a stationary vehicle of mass 900kg. The two vehicles lock together on impact. Calculate: 1) The speed of the two vehicles immediately after the impact. 2) The force of the impact, if the

83. ## Algebra 1

Select the points that lie on the function H(x)=3x^2 (1,3) (1,9) (-1,-3) or (-1,3)

84. ## Physics

An object of mass 12kg is pushed 34m up a frictionless slope that is at an angle of 56^o to the horizon. Determine both (a) the work on the object and (b) its change on gravitational potential energy.

85. ## Trigonometry

A tree is 5.8 metres tall and casts a shadow, the Suns elevation is 55 degrees, what length is the shadow? How do I work this out please?

86. ## Maths

Find the number such that when 3/4 of it is added to 3 1/2 the sum is the same as when 2/3 of it is subtracted from 6 1/2.

87. ## Math

adding and subtraction number using greatest common factors 940-420=? 169-26=? 15+75-45=? 48+16=? 17+51=? What is the GCF?

88. ## Physical Science

1. which of the following should be classified as a suspension? A. soda** B. sand in water C. glass D. milk 2. Which of the following is an of example of a chemical property? A. density B. flammability C. hardness** D. melting point 3. Which state of

89. ## physics

An adult dolphin weighs around 1560 N. How fast must he be moving as he leaves the water vertically in order to jump to a hei ght of 3.50 m? Ignore air resistance.

90. ## Describing Data

The following frequency table contains the total number of deaths worldwide as a result of earthquakes from 2000 to 2012. Year Deaths 2000 231 2001 21,357 2002 11,685 2003 33,819 2004 228,802 2005 88,003 2006 6,605 2007 712 2008 88,011 2009 1,790 2010

91. ## physics

a football is kicked with an initial speed of 80 m/s at an angle of 30 degrees above the horizontal. A. what is the maximum height that the ball attains? b. what is the balls hang time? (how long is it in the air) c. what is the range of the ball? (how far

The first three sentences are (1) Everyhting I know about gardening i learned from my good friend Sandy (2) When I first moved from Iowa to Georgia last May, I tried planting a vegetable garden right away. (3) As i happily weeded the ground i thought to

93. ## Math

A rectangle, a circle and a triangle are drawn in a plane. What is the maximum number possible points of intersection. The sides of the triangle are not collinear with any of the sides of the rectangle.

94. ## Math

Use the quotient rule to find the derivative of cot x. I tried to solve this, but somehow I got (sec^2x)/(tanx)^2.

95. ## MATH

Suppose an object moves along the x-axis so that its position at time $t$ is $x=-t+\frac{t^3}{6}$. (a) Find the velocity, $v(t)=x(t)$, of the object. (b) What is $v(0)$? What does this say about the direction of motion of the object at time $t=0$? (c) When

96. ## Math

lim (cos(π/4 + h) - cos (π/4)) h->0 _________________________ h Somehow I ended up with cos(1).

97. ## Math (Function differentiable)

Determine whether the function is differentiable at x=2 x^2+1 for x2 I did the math for the limits of both equations and they both approach to 4. So that means they are differentiable right?

98. ## Science

If the density of copper is 8.9g/cm3 and that of silver is 10.5g/cm3, how could you find out if a quarter has more silver or copper in it?

99. ## chemistry

How we make 0.02ppm solution in 25ml?

101. ## Math

My number has 2 tens and 2 ones what is my number?

102. ## Math

A rectangular school banner has a length of 36 inches and a width of 52 inches. A sign is made that is similar to the school banner and has a length of 22 inches. What is the ratio of the area of the school banner to the area of the sign? What is the ratio

103. ## Math

the 3 sides of a triangle have lengths of (x+7) inches, (5x+6) inches, and (5x-3) inches. What is the length of the shortest side if the perimeter of the triangle is 43 inches

104. ## Science

A gold chain with a mass of 40 grams is placed into a graduated cylinder. The graduated cylinder had a volume of 30 ml before the chain was placed in graduated cylinder. After it was added to the graduated cylinder the volume had risen to 50 ml. What is

105. ## Math

A Boy Scout has 3 meters of rope. He cuts the rope into cords 3/5m long. How many cords will he make?

106. ## Math

This is a really weird question but mom in a dilemma. My economics teacher doesn't post our marks online so idk what mark I'm actually at in his class. Can anyone help me figure out what percent I'm at right now if I give the following information ? He

107. ## GCF

adding and subtraction number using greatest common factors 940-420=? 169-26=? 15+75-45=? 48+16=? 17+51=? What is the GCF?

108. ## All of math

What are all the answers to unit 4 lesson 11

109. ## Algebra

-(3x-2y) -(5x-4y)=

110. ## Analytical chemistry

Calculate to four decimal places the mass of purely dry MgCO3(Magnesium Carbonate) required to make 1L of a 1000 ppm Mg stock solution.

111. ## Algebra

1/5x + 4/5y + 2/5x - 1/5y=

112. ## american goverment check answers

3. The National Science Foundation (NSF) raises money for scientific projects and research in the United States. What kind of agency is the NSF? (1 point) staff agency line agency legislative agency judicial agency 3.C

114. ## physics

Calculate the velocity time graph of a body at rest is given an initial uniform acceleration.

115. ## Precal

solve for x if -2=log(3x+5)

116. ## science

What is the geologic time scale and what are some thing scientists use it for (at least two things)? Here's my answer could you please verify. the geologic time scale is a record of the geologic events and life forms in Earth’s history. Scientists use it

117. ## Social studies

Compare and contrast the cultures of Native Americans who lived in lived in the Southwest with those who lived on the West Coast.

118. ## Chemistry

You add 7.326g of solid CaCl2 to 45.5 mL of water in a coffee cup calorimeter and measure as the temp. Increase from 22.6 C to 41.5 C. Specific heat water is 4.184 J/ g.C and the density of water is 0.9977 g/mL. Find the mass of water. PLEASE HELP ME!!!

119. ## Spanish

Hello! I'm stuck on a Spanish worksheet, I could use a little help. "Answer the questions below based on the pictures. Use complete Spanish sentences. Each sentence needs to follow the structure: subject pronoun + verb in the present tense. 1. ¿Que hace

120. ## physics

Calculate the velocity time graph of a body at rest is given an initial uniform acceleration .

121. ## chemistry

For the following reaction Co(g)+H2o(g)=Co2(g)+H2(g) If the initial concentrations of Co and H2o are 1.00 mol in a 50 L vessel, what is the number of mole of each species at equilibrium, if the equilibrium constant Kc= 0.85 at 1000 C? please can any one

122. ## Math

Kat has a smoothie company. She needs to make 240 cups of fruit smoothies for the next day. If she wants to store the smoothies overnight in quart containers, how many quart containers will kat need?

123. ## Math

What is 17% of 800 and 83% of 800?

193. ## Math

Three numbers form a g.p.if the first and third numbers are 5and245 respectively,find two possible values for the middle number.