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Mary
Questions (2,164)
The ratio of blue to red cars in a parking lot is 4/7. If there are 168 blue cars about how many red cars are there?
4/7=x/168
1 answer
571 views
Find the derivative of:
G(x) = ∫(top x) t^5 sin(−7t−4)dt . (bottom 9)
1 answer
475 views
How do I find the value of sin ( A-B)
When tan A= 4/3 Cot B= 5/12
1 answer
593 views
Find the degree 7 Taylor polynomial for
f(x )= 2cos(3x) centered at x = 3π/2 . Thanks for your help
0 answers
606 views
Consider 1.00 L of the buffer system that contains 0.200 M hydrocyanic acid(HCN) and 0.150 M sodium cyanide (NaCN). The pKa of
2 answers
1,362 views
How much does it cost to operate a 23-W porch light for 24 h if electric energy costs 8¢/kWh?
1 answer
4,711 views
1. Calculate the kinetic energy of a 5.2kg object moving at 2.4 m/s
7. Calculate the potential energy of a 5.2kg object
2 answers
2,680 views
The velocity graph of a particle moving along the x-axis is shown. The particle has zero velocity at t=0.00s and reaches a
3 answers
4,352 views
A cannon ball is fired horizontally from a cannon that is 40.7m above the ground. The initial velocity of the cannon ball is
2 answers
865 views
cos(x)/(1-tan(x)) + (sin (x))* cos(x))/ sin (x)-cos(x))
1 answer
373 views
How do you find P if A=1/2a+P, and you have both the values of a and A?
1 answer
339 views
The call number of the book that you're looking for is R865.2. What do you know about the book
based on this information? A. It's
8 answers
1,401 views
If The British Government Could Do It Over Again
The British governing policy of salutary neglect gave the young colonial
1 answer
698 views
Susie spent 4 1/4 hours on Monday and 3 5/8 hours on Tuesday working on a history project. About how long did she spend working
1 answer
612 views
A right circular cone of base radius 5 cm and depth 20 cm is held with its vertex downwards. If water is leaking through a small
1 answer
1,102 views
The total number of football (x) and basketball (y) is 180. There are 30 more football than basketball. How many of each
1 answer
592 views
Hello, Could anyone help me with something about rolling motion?
Well the question is the next: Does static friction cause a
1 answer
422 views
Hello....I was helped on this question earlier, but I don't understand why we divide by 2? Please help, please see the below:
The
1 answer
525 views
Please help:
The president will order 5 turkey sandwich combos and 7 steak lunches and spends $124.00. The other president will
1 answer
511 views
The rating for a tv show dropped a total of 10 points in 2 weeks. What integer represents the average change in points per week?
1 answer
963 views
ou build a loop-the-loop in your backyard. It has a diameter of 3.10 m.
a) How fast will you have to be moving at the top of the
0 answers
463 views
A 15 kg box is given an initial push to start it moving up a frictionless ramp with angle theta = 30 degree and length delta r =
2 answers
732 views
Material X has a coefficient of linear expansion a = 0.00000271/degree C. What value would you expect its volume coefficient of
0 answers
651 views
Suppose Captain Marvel leaps from the top of a 20 m tall building. If his initial speed is 12 m/s, then what is his speed just
0 answers
385 views
An aluminum (with Young's modulus 7 x 10^10 Pa) rail is 88.0 m long and has cross-sectional area 0.00050 m^2. The rail is fixed
0 answers
582 views
I am doing the 100 meter men's freestyle swimming lab (in case you know what I am referring to) and I need to fibd the lower
1 answer
787 views
A satellite orbits the Earth in an orbits 750 km high. Find (*) the satellite's orbital speed and (**) period. (The mass and
1 answer
1,151 views
If a penny prior to 1982 weighted 3.1 grams and a current one weighs 2.5 grams how many pennies weighing 3.1 and 2.5 will I need
2 answers
610 views
An angle of a circle with a 2 m radius is delta theta = 20 degree. What is the corresponding arc length delta s?
1 answer
447 views
A wheel is rotating with angular velocity 14 rev/s. What angular acceleration would be needed to bring the wheel to rest in a
1 answer
713 views
Test 62,004 for divisibility by 2, 3, 5, 9, or 10.
Please help!!
15 answers
4,949 views
How do you write 1,840 in scientific notation?
26 answers
3,492 views
Write the expression using an exponent.
4^2 - (2 • 2^4) a -16 b 30 c -240 d 224 (-3)^3 a 0 b -9 c -27 d 27 37 • 5^2 - 9 •
1 answer
431 views
What mass of hydrogen gas is produced when 3.0 mol of iron react with excess hydrochloric acid according to the reaction below
2F
1 answer
663 views
What mass of hydrogen gas is produced when 3.0 mol of iron react with excess hydrochloric acid according to the reaction below
2F
0 answers
546 views
What mass of hydrogen gas is produced when 3.0 mol of iron react with excess hydrochloric acid according to the reaction below
2F
0 answers
730 views
What mass of hydrogen gas is produced when 3.0 mol of iron react with excess hydrochloric acid according to the reaction below
2F
0 answers
561 views
What mass of hydrogen gas is produced when 3.0 mol of iron react with excess hydrochloric acid according to the reaction below
2F
0 answers
554 views
A can of Coke moving 15.6 m/s toward the right(the positive direction) collides with a can of Pepsi moving 3.21 m/s toward the
0 answers
519 views
Please help me with this homework
you roll two fair dice, a green one and a red one? (a) are the outcomes on the dice
1 answer
871 views
Several forces are applied to an object. If the object 40 m along the horizontal, and if one of the forces is a constant 5.0 N
0 answers
680 views
Can you help me with the final check:Relating to Parents chapter 17
5 answers
10,208 views
How do I find the inverse of a picewise function???
1 answer
528 views
The diameters of a circle is 50cm how far does the wheel travel for 1 turn
1 answer
442 views
You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.3 m above the ground, and it is
1 answer
1,358 views
Write an inequality that represents all of the data values X, that fall between the values of the mean +/- the standard
2 answers
869 views
Solve for t if 0<t<2pi
Note: both are less than or equal to . Please help!! I am not sure what I should do.
3 answers
398 views
Two objects are positioned and moving . m 1 = 7 kg ,m 2 =11 kg, and the coefficient of kinetic friction between object 1 and the
0 answers
437 views
1) How does the atomic radius change from left to right across a period in the periodic table?
A) It tends to decrease*** B)It
10 answers
10,464 views
How many square tiles with sides 1 foot long would be needed to cover the floor of an 8' x 10' room
1 answer
869 views
If the cost of a .75 x 6.o x 19.0 sheet of ABS plastic is $18.00, what is the cost to make 20 parts? each part has a mass of
1 answer
360 views
If the cost of a .75 x 6.0 x 19.0 sheet of ABS plastic is $18.00, what is the cost to make 20 parts?
4 answers
387 views
1) How does the atomic radius change from left to right across a period in the periodic table?
A) It tends to decrease*** B)It
1 answer
955 views
You put 50 mL of water in a graduated cylinder, then you place an object in the water. The level rises to 55 mL. What is the
1 answer
614 views
A projectile is launched horizontally from a cliff and has initial speed 30 m/s. The projectile will hit the ground 10 s later.
1 answer
757 views
A man chased by the army, leaps with speed 12 m/s at a 47 degree angle above the horizontal from the top of a building. If he
1 answer
635 views
Before 1986, a gold bullion in the Federal Reserve Bank was rectangular and had a volume of approximately 727.7 cm3. The density
1 answer
754 views
1) The letter "p" in the symbol 4p^3 indicates the ___.
A) spin of an electron B) orbital shape*** C) principal energy level D)
9 answers
8,027 views
Check answers?
1) Write a comparative sentence: La tortue est intelligente mais le poisson est tres intelligent. A) La tortue est
8 answers
4,712 views
Byong Sun withdraws $15 from his bank account once each day for four days. what integer represents the change in the amount in
0 answers
715 views
Check answers?
1) What is the main difference between the formal and informal qualifications for the House of Representatives? A)
37 answers
9,143 views
For this problem, we will use the formula for position of an object. y=1/2at^2+vot+ho, where t is time in seconds, a is
2 answers
1,353 views
1) What are the converse, inverse, and contrapositive of the statement? Which statements are true? If the figure is a rectangle
1 answer
3,628 views
Check answers?
1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are
1 answer
1,017 views
Check answers?
1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are
8 answers
6,254 views
A cute puppy walks 20 m at 30 degrees north of east and then continues another 45 m at 15 degrees south of east. Find the
1 answer
550 views
If a vector K has component Kx = 4.1 and Ky = -13, then find the magnitude K and direction (as a positive rotation angle
1 answer
621 views
How many complete sets of aprons could you make out of 5 1/2 bolts of material and 1 bolt is equal to 15 yards? there are adult
1 answer
605 views
A net force is applied to an object, the same net force is then applied to a second object with 6.2 times the mass of the first
1 answer
537 views
If a 350 kg object is moving with constant velocity 22 m/s due east then what is the magnitude of the net force acting on the
1 answer
447 views
A taxicab moves 5 blocks due north, 5 blocks due east, and another 2 blocks due north. Assume all blocks are of equal size. What
1 answer
2,969 views
A science student is riding on a flatcar of a train along a strait, horizontal track at a constant speed of 12.0 m/s. The
1 answer
641 views
A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle
2 answers
1,062 views
A coaxial cable 10 feet long is cut into two pieces such that the length of one piece is two-thirds of the length of the other
1 answer
1,178 views
Solve the inequality: 1/4w +3 is less than -6
1 answer
433 views
What is the volume of the oxygen produced when 1.00L carbon dioxide reacts with 20.0 g of Na2O2 based on the following
1 answer
1,731 views
Emma estimated the first digit in the quotient of 2,183 ÷ 42 as 4. She adjusted the quotient. What did zhe do wrong? Explain
5 answers
2,447 views
The difference of two numbers is 47. The larger number is three less than six times the smaller number. Find the numbers.
2 answers
820 views
Please , I don´t know how to do this demonstration:
If A and B are mutually perpendicular vectors( different to zero vector) and
1 answer
516 views
Hello I need help with this excersise of derivative of a inverse function. The excersise says:
If f(x+2)=x^3+1 and g(x)=f(arctg
2 answers
709 views
A hare is in a 100m race. it starts the race at a particular speed s. halfway through the race, it notices its losing, and
1 answer
562 views
Hello, I need help with this limit:
Lim ((arctanx-x)/x^3) X->0 I can't use L'Hospital Rule or series. I don't get what to do. Can
2 answers
506 views
Sam ranks movies on a scale of 1-100. If he adds 2 points to each movie in his collection, and the range of the ranking was 54,
1 answer
624 views
If P^2+q^2 = 25 and 2 pq=10. What is the value of (p-q) ^2?
1 answer
643 views
I really need help. Create an appropriate table of values for the function f(x)=tan3x/7x and use the re to estimate lim as x
1 answer
523 views
Hello I need help with this excersise: How many moles of NH4Cl are neccesary to add to 1 liter of solution of Co2+ 0,20 M in
1 answer
937 views
What science field is Vantablack considered to be part of?
1 answer
382 views
if a savings account can suddenly buy much more than before does that mean deflation is occuring?
1 answer
500 views
An aeroplain flies at a constant altittude of 4000 flies above sea level.at it start to land it descend at a constant rate at X
1 answer
546 views
A flower bed is in the shape of a triangle with one side twice the length of the shortest side, and the third side is
30 feet
1 answer
6,343 views
Please help me, it would be greatly appreciated.
1.) A set of data was collected as shown in the table. Data value: Frequency: 5.
1 answer
1,606 views
Uable to find correct answer:
In general it is expected_____________ A) hydrostatic pressure will remain constant throughout the
0 answers
1,039 views
Change passive voice into active
2 answers
603 views
I have the formula to problem but can not come up with any of the answers.
Problem: Calculate the cardiac output if heart rate
1 answer
553 views
13. Complete the sentence with the word that has the most positive connotation. She was wrong and too_____ to admit it.

9 answers
2,692 views
1. Mexico's economy is based largely on (2 points)
oil exports. mining. agriculture and livestock.** industry. 2. Many indigenous
32 answers
2,021 views
8. Whose attitude toward Scrooge is the most severe? (1 point)
Marley's Bob Cratchit's the Ghost of Christmas Present's Mrs.
19 answers
3,130 views
I have 2 similar triangles. The surface area of the smaller one is 27m squared. The scale factor is 3. How do I find the surface
1 answer
507 views
angle PQR and angle TQV are vertical angles. The measure of the two angles have a sum of 100*. Write and solve an equation to
3 answers
5,258 views
Consider the region in the plane consisting of points (x, y) satisfying x > 0, y > 0, and lying between the curves y=x^2 +1and
1 answer
569 views
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