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Bill
Questions (444)
explain how the frequency of the oscillating particle particle can affect the type of EM Wave.
1 answer
394 views
Mrs. Gifford's class consists of 15 girls and 25 boys.
the class mean was 80 and the mean girl’s scores was 75. What was the
2 answers
754 views
Mrs. Gifford's class consists of 15 girls and 25 boys.
the class mean was 80 and the mean girl’s scores was 75. What was the
2 answers
566 views
On the first test the mean of the girls’ scores was 80 and the mean of the boy’s scores was 70. What was the class
1 answer
578 views
Mrs. Gifford's class consists of 15 girls and 25 boys.
On the first test the mean of the girls’ scores was 80 and the mean
2 answers
730 views
f(-3)
Answer is:
1 answer
380 views
The difference between the measures of two supplementary angles is 8˚. What is the measure of the larger angle?
What is the
2 answers
1,424 views
On the second test, the class mean was 80 and the mean girl’s scores was 75. What was the mean of the boy’s scores?
4 answers
582 views
Mrs. Gifford's class consists of 15 girls and 25 boys.
On the first test the mean of the girls’ scores was 80 and the mean of
2 answers
856 views
The two equal sides of an isosceles triangle are 11 feet longer than the third side. The perimeter of this triangle is 56 feet.
1 answer
539 views
This year Frank spends an average of 70 minutes each night doing homework. This is 30 minutes less than twice the time he
1 answer
483 views
Solve the following system of equations. You will type your x value in the first part and the y value in the second part of the
2 answers
573 views
This year Frank spends an average of 70 minutes each night doing homework. This is 30 minutes less than twice the time he
3 answers
509 views
One of two complementary angles has a measure of 6º greater than the other. What is the measures of the larger angle?
3 answers
543 views
2/10+13/100
2 answers
318 views
A quarter on a spinning vinyl record has a centripetal acceleration of 34.0 m/s2. What is the acceleration of the quarter if it
2 answers
1,778 views
What are the roles of hydrogen peroxide, oxygen, hydrogen, and catalase in the following chemical reaction?
catalase 2H2O2 > O2 +
1 answer
3,923 views
How many degrees are in the smaller angle formed by the minute and hour hands on a clock at 12:30?
1 answer
589 views
insert +, -, X, /, and () to make each math statement true
4 4 4 4 = 10 4 4 4 4 = 6
1 answer
528 views
How do I convert numbers into percentages. The all of the percentage is out of 50%.
2 answers
410 views
The weight of bags of pretzels are normally distributed with a mean of 150 grams and a standard deviation of 5 grams. Bags in
1 answer
1,841 views
(Need help with this prompt, just one paragraph will do)
It is 1870, French forces leave Italy (to fight in the Franco-Prussian
12 answers
1,323 views
Find the ratio of the volumes of NaC3H5O3 soloution to HC3H5O3 (lactic acid) required to prepare a buffer with a pH of 3.90. the
0 answers
565 views
Find the pH of a buffer solution with equimolar concentrations of: HCOOH and NaCOOH (Ka = 3.5 x 10-4 for HCOOH)a
0 answers
575 views
If there are 8 sharpeners in every box, is the formula that relates s Sharpeners and B boxes
B=8s or S=8B?
1 answer
401 views
Write an equation of the line that passes through the given point and is perpendicular to the given line (2,3), x+2y=-7
1 answer
450 views
What's the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the
2 answers
736 views
If the change in temperature of a sugar added solution of water increased its boiling point by 0.6C how many moles of sugar was
1 answer
529 views
a softball batter hits a fly ball that is caught 3.8 seconds later, 88m from home plate. The ball is caught at the same height
1 answer
620 views
A teacher has 27 students in her class.she asks the students to form as many groups of 4 as possible.how many students will not
2 answers
1,122 views
You and a friend eat tacos. You order 2 tacos and 5 burritos which equals $19. Your friend orders 1 taco and 4 burritos which
3 answers
668 views
If (c) were f(x)=-4/(k+7) what value of k would be excluded from the domain?
I know that we cant have 0 in the denominator. I
1 answer
751 views
How many nodes are in the pi* orbital of a carbon-carbon double bond?
Please explain. Thanks in advance.
0 answers
402 views
Eight people rob a bank:
What percent of the loot belongs to three people if they decide to share it evenly
1 answer
771 views
How much Jim can accumulate in a private pension fund over 20 years if the fund offers 5% interest compounded annually, and he
1 answer
3,378 views
an initially resting 300g car is dragged along a horizontal frictionless table by a massless cord. The cord is attached to
1 answer
1,020 views
Point $G$ is the midpoint of median $\overline{XM}$ of $\triangle XYZ$. Point $H$ is the midpoint of $\overline{XY}$, and point
3 answers
1,037 views
Altitudes $\overline{XD}$ and $\overline{YE}$ of acute triangle $\triangle XYZ$ intersect at point $H$. If the altitudes
1 answer
604 views
Points J and K, plotted on the coordinate grid, are two vertices of rectangle JKLM.
Rectangle JKLM has an area of 7 square units.
1 answer
859 views
Q: What represents the sum of a geometric series with 8 terms whose first term is 3 and common ratio is 4.
A: 65,535 Is my answer
1 answer
1,020 views
A 3.50L balloon contains 0.178 mol of gas. If 0.094 mol of gas is added to the balloon, what will be the new volume?
5 answers
1,865 views
A rocket blasts off from rest and attains a speed of 49 m/s in 16 s. An astronaut has a mass of 56.3 kg. What is the astronaut's
1 answer
1,825 views
A 1000-kg aircraft going 25 m/s collides with a 1500-kg aircraft that is parked. They stick together after the collision and are
2 answers
1,777 views
What is the percentage of gas (C2H2) formed when 2.66g of calcium carbide (CaC2) reacts completely with 50g water?
2 answers
451 views
how long would it take a car traveling 175 mph to go 26 miles?
1 answer
387 views
Calculate the equilibrium constant for the equilibrium knowing that there are 2 moles of O2 H2, 6 moles of O2 and 3 moles of H2O
1 answer
389 views
The nth term and the sum of n terms of a geometric sequence are 5 and 55 respectively. If the commom ratio is -(1/2)n find the
1 answer
438 views
If a person throws 3 darts at a dartboard, how many possible combinations are there to get a sum of 34?
1 answer
1,476 views
A baseball player hits a home run over the left-field fence, which is 104 m from home plate. The ball is hit at a point 1.08 m
0 answers
841 views
Iron metal reacts with oxygen gas to form rust, iron (III) oxide. Which of the following correctly shows the balanced equation
5 answers
10,377 views
The amount remaining of a radioactive substance after t hours is given by
A(t) = 100ekt. After 12 hours, the initial amount has
2 answers
1,318 views
A 180 pound body is dropped from a helicopter 5 miles (26400 ft.) up -
- what maximum speed would the body attain, in miles per
2 answers
392 views
If a 180 pound body is dropped from an airplane 5 miles (26400 ft.) up:
a/ how long would it take for the body to reach the
1 answer
442 views
If a 180 pound body was dropped from a plane 5 miles in the air - how long would it take for the body to reach the ground?
1 answer
415 views
Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from
0 answers
1,177 views
Suppose x has a binomial probability distribution with n = 200 and p = 0.60. Use the normal approximation to the binomial to
0 answers
820 views
The instruments attached to a balloon have a mass of 5kg. The balloon is released and exerts an upward force of 100 N. After the
1 answer
609 views
The driver of a car is going 90 km/hr suddenly sees a barrier40m ahead. It takes the driver .75 sec to apply the brakes, and the
2 answers
826 views
mercury rotates around the sun in approx. 89 earth days (or 7,689,600 s. use a calculator to approximate its angular speed.
choic
2 answers
1,105 views
John Quinn does not explain the rule about the paddle to Paul, the narrator of “The Pigman & Me.” How does this one action
1 answer
1,042 views
How are fish, amphibians, reptiles, and birds alike? How are they different? Include at least two similarities and two
3 answers
1,180 views
Which section of a personal narrative requires the most development?
a. introduction b. conclusion c. character introduction d.
1 answer
649 views
Which section of a personal narrative requires the most development?
a. introduction b. conclusion c. character introduction d.
14 answers
2,002 views
What examples are given of a limited government and an unlimited government in the section? How did each type of government
4 answers
1,072 views
"The renewable energies roadmap unveiled earlier this month by the Commission sets a target of 20% for the share of total energy
2 answers
597 views
Dr. Jefferson is conducting an experiment in which she is interested in the effects of caffeine on visuospatial ability in adult
3 answers
543 views
A researcher has conducted an experiment in which she has given participants a placebo, 10mg, and 20mg of a drug. She then
1 answer
575 views
We use _______________ to communicate the patterns and distribution of our measured variables.
1 answer
467 views
The novel to kill a mockingbird feature a main character named scout. Scout is also the voice that tells the story. What point
3 answers
1,050 views
A ball is thrown, and its height is recorded a number of different times. The ball reaches a maximum height of 20 m after 1.5 s.
1 answer
703 views
An experiment stain of bacteria is being used to treat an oil spill. A colony of 2^13 cells will be sufficient to ocean up the
2 answers
767 views
An object is moving at a speed of 3 + 2 𝑓𝑡/𝑠. How long would it take the
object to travel 20 𝑓𝑡? [looking for
0 answers
393 views
3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the
1 answer
568 views
If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the
0 answers
635 views
If the standard error of measurement is 3, and a person scores 125, Standard error of measurement with one standard deviation
1 answer
545 views
Carl hits a 0.05 kg golf ball giving it a speed of 65 m/s. What impulse does he impact to the ball?
1 answer
640 views
A car dealer determines that if gasoline-electric hybrid automobiles are sold for x dollars apiece and the price of gasoline is
2 answers
2,095 views
A car dealer determines that if gasoline-electric hybrid automobiles are sold for x dollars apiece and the price of gasoline is
0 answers
659 views
Using x hours of skilled labor and y hours of unskilled labor, a manufacturer can produce Q(x,y)=40xy1/5 units each week.
3 answers
2,689 views
1. How does the current anti-corruption movement in China affect relatively tax free countries(ex. monocao, switerland etc.)?
2.
2 answers
577 views
calculate the density of NH3 at S650mm of Hg
1 answer
381 views
Look at my problem again please thanks
0 answers
384 views
3 kg object is fastened to a light spring with the intervening cord passing over a pulley. The pulley is frictionless and it's
2 answers
3,161 views
Find the area of the region bounded by the curves y=12-x^2 and y=x^2-6.
Hint:The answer should be a whole number.
3 answers
2,542 views
In order to standardize a KMnO4 solution, 0.2848 g Fe(NH4)2(SO4)2·6H2O was dissolved in 25 mL 0.18 M H2SO4. The KMnO4 solution
2 answers
3,715 views
how to write
4(x+2)+3x+2(x-y) in the distribt. property form
1 answer
343 views
Calculate the pH of a 1.19M sodium formate, HCOONa, solution.
1 answer
769 views
Calculate the pH of a buffer solution made by mixing 231 mL of a 1.04M trimethylamine (CH3)3N solution with 176 mL of a 1.38M
1 answer
710 views
How many grams of nitric acid (HNO3) must be dissolved in 590 ml of water to make a solution with a pOH = 10.1?
Select one: a.
1 answer
624 views
How many mL of 0.203 M HCl(aq) are required to prepare a diluted solution that has a concentration of 0.0433 M in a 100-mL
1 answer
449 views
Consider the reaction
2 SO2(g) + O2(g) in equilibrium with 2 SO3(g) . At 25°C delta H° = -197.78 kJ and delta S° = -187.95
2 answers
810 views
It seems that people are choosing or finding it necessary to work later in life. Random samples of 200 men and 200 women age 65
0 answers
715 views
Suppose that the probability that a new medication will cause a bad side effect is 0.03. If this medication is given to 150
1 answer
712 views
Boyle’s law for the expansion of a gas is PV = k, where P is the pressure (in pounds per unit of area), V is the volume of the
1 answer
1,940 views
A dog sled weighing 750 lb is pulled over level snow at a uniform speed by a dog team exerting a force of 60 lb. find the
0 answers
446 views
If BaSO4 ppt is isn't washed or dried adequately how will this effect the sulfate percent error determination?
0 answers
443 views
Find the locus of points that satisfy
(a) |z+1| = |z+i| (b) Re z = |z-1| and sketch them in the complex plane.
2 answers
469 views
simplify (sqrt(x)+1)/(sqrt(x)-1)
1 answer
428 views
Two charged particles are fixed on the x-axis 11 cm apart. The one on the left has a net charge of +25uc and the one on the
1 answer
642 views
For a party; Mike is making an eight layer torte, which consists of eight 7-inch diameter cake layers with a cream topping on
1 answer
438 views
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