07/17/21

Find a possible formula for the trigonometric function whose values are in the following table.
x: 0,2,4,6,8,10,12y:9,3,-3,3,9,3,-3y=?
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07/16/21

Can someone please answer this question
Combining  with excess carbon produced Fe2O3+3C⟶2Fe+3CO with excess carbon produced 14.8 g Fe.What is the actual yield of iron in moles?What is the theoretical yield of iron in moles?What is the... more
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07/16/21

Question number four

An icecream store reports sales of 350, 000 dollars in 2019 and 400, 000 in 2020. Assume a linear relationship exists which gives the sales of the icecream store S (in dollars) in terms of time t... more
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07/14/21

The radius of a circle is 8 feet. What is the length of a 135° arc?
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07/14/21

Sinusoidal functions and applications
Go to document for better explanation and understanding:https://docs.google.com/document/d/1M2okhZo5Aea8YLAhm68xFrn9uYHy5tJbvyvyheMUni8/edit?usp=sharing
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07/13/21

Freaking out about this
A 1.1 L tank of N2 gas has a pressure of 1.25 atm. What is the pressure (in mmHg) if the volume is increased to 3.6 L? Assume the temperature remains constant. Round your answer to the nearest tenth.
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07/11/21

What’s the answer to this problem

At a concession stand, three hot dogs and two hamburgers cost $9.75; two hot dogs and three hamburgers cost $10.25. Find the cost of one hot dog and the cost of one hamburger.
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07/11/21

Calculate the vertical velocity of a cannonball

Calculate the vertical velocity of a cannonball which is shot at 50.0 degrees up from the horizontal ground to the right at at speed of 400ms-1
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07/11/21

A ferris wheel is 25 meters in diameter and boarded from a platform that is 1 meters above the ground.
A ferris wheel is 25 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel... more
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07/11/21

Solve sin ( 2 x ) cos ( 4 x ) − cos ( 2 x ) sin ( 4 x ) = − 0.75 for the smallest positive solution.
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07/10/21

Are my answers to these Chemistry problems correct?
For the following questions, give the molar concentration (M) for each of the solutions indicated. (My answers are in bold.)2.22 moles of HCl are dissolved in enough water to make 1.5 liters of... more
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07/08/21

The base of a solid in the region bounded by the graphs of y = e-x y = 0, and x = 0, and x = 1. Cross sections of the solid perpendicular to the x-axis are semicircles. What is the volume
in cubic units of the solid
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07/07/21

q1 = -4.60 x 10-5 C, q2 +3.10 x 10-6 C, and 93 = -8.30 x 10-5 C. Find the y-component of the net force on q2. Include the correct + or - sign to indicate direction.
Q1 is connected to Q2 (left to right) with a distance of 0.350 meters. Q2 is connected Q3 (up-down) with a distance of 0.155 meters.
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07/07/21

What is the area of a triangle with sides measuring 7 cm, 7.4 cm and 9.6 cm?
Round to the nearest tenth. Area ≈  _?_ cm2.
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07/07/21

A triangle has a base of 8 inches and sides of 6 and 5 inches.

What is the height of the triangle?Round to the nearest hundredth. The height is approximately __?__ in.
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07/07/21

the potential energy of an elastic spring when elongated 12 cm is 3.5 joule. determine the spring constant. what is the potential energy and force of the spring if its elongation is 10 cm?
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07/06/21

so confused. I used the steps for ideal gas law, but got the wrong answer.

A latex balloon will adjust to maintain the same pressure. If the balloon is filled with 29.5 L of helium initially at 23.2 degrees Celcius, what would the volume be if the temperature adjusted to... more
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07/06/21

Simplify and show work plz
z2+2z-35/(z-2)(z-5) •-z2-7z+18/(z+7)2
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07/05/21

I NEED HELP SOON PLEASE
A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the number of machines made. If x machines are made, then the unit cost is... more
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07/05/21

HELP ME SOON PLEASE!!!!
A gardener will use up to 240 square feet for planting flowers and vegetables. He wants the area used for vegetables to be at least twice the area used for flowers. Let x denote the area (in square... more
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07/05/21

What if x varies directly as y, and x=35 when y=7, find x when y= 8?
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07/03/21

Any help for this question please?
The following table shows the hours of sunshine, x, during nine days in August and the number of ice creams, y, sold by a beach shop in... more
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07/03/21

Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns.
Number of​ classes: 8 Data​ set: Reaction times​ (in milliseconds) of 30 adult females to an auditory stimulus 428 293 382 338 514 423389 426 372... more
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07/02/21

Difference Quotient and Equation of the Tangent Line
Calculate the difference quotient for f(x)=1/(√2x+5) at a=4.f(4+h)-f(4)/h = ?f'(4) = -1/13^(3/2)Find an equation of the tangent line to f(x) at a=4What would the difference quotient and equation of... more
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06/28/21

I do not understand this at all
Write the electron configurations for the elements below. Use the following format with spaces between each sublevel in the configuration: 1s2 2s2 2p6.What is the electron configuration of... more
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