02/16/22

Let 𝑓(9)=−5 and 𝑓â€Č(9)=8. Then the equation of the tangent line to the graph of 𝑩=𝑓(đ‘„) at đ‘„=9 is 𝑩= ?
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02/15/22

𝑡 (s) [A] (M) 0.0 0.900 25.0 0.609 50.0 0.461 75.0 0.370 For the reaction A⟶products , concentration and time data were collected.

Enter these data into the graphing tool to determine the reaction order.Calculate the concentration of A after 95.0 s.
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02/15/22

Help me with this question?
What is the concentration of methanol in a solution prepared by combining 8.65mL of a 3.609M methanol solution with 17.70mL of water? Assume volumes are additive and report your answer to 3... more
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02/14/22

Helppp........................
Using interval notation, determine the largest domain over which the given function is one‑to‑one. Then, provide the equation for the inverse of the function that is restricted to that domain.If... more
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02/14/22

Can you answer this plz?
A patient needing a blood transfusion has a blood pressure of 120/70 (this is in units of mm Hg). It is best for the blood during the transfusion, to have a pressure that matches the patient’s... more
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02/14/22

Find the area of the region between the graphs of y = 13 − x 2 and y = − 5 x + 7 over the interval 3 ≀ x ≀ 9 . The area is

Find the area of the region between the graphs of y=13−x2 and y=−5x+7 over the interval 3≀x≀9.The area is  
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02/14/22

Gas Solubility Chemistry Question
If a gaseous sample contains 53% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0  10-4 mol/Latm)?
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02/13/22

Differential calculus using chain rule, product rule and quotient rule.
Im unsure on how to do this question.this is for homework and its a complex question.the question isfor f(x)=ax(x2-b) where both a and b are constants, f(x)=8b when x=4, f'(x)=15a when x=3. Find... more
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02/12/22

Physics 2-D Momentum Homework Help
I have a problem that I just can't figure out the answer for. Can anyone help me with it?Question:A 7.50 kg bowling ball moving 6.42 m/s strikes a 1.60 kg bowling pin at rest. After, the pin moves... more
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02/12/22

The Laws of Sines Cosines Determine how far a boat is from shore
To determine how far a boat is from shore, two radar stations have been erected 1 mile apart on the shoreline. These stations then measure the angles out to the boat as shown in Figure 2. Find the... more
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02/11/22

The last electron in a bivalent negatively charge ion is described by the following quantum numbers: n=3, l=0, m=0, s=+œ
1 Write the orbital configuration of the ionic species2 write the shell configuration of the natural atom3 Give the name and symbol of the atom4 what group of the periodic table does it belong to?
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02/11/22

Angular Distance- please help!

Dyllon the spaceman once circled Earth exactly three times in less than 5.00 h aboard his spaceship, the Gamble 13. Find the angular distance of the spaceship as it orbited Earth counterclockwise.... more
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02/11/22

A baseball diamond has the shape of a square with sides 90 feet long (see figure).
A player running from second base to third base at a speed of 25 feet per second is 21 feet from third base. At what rate is the player's distance from home plate changing? (Round your answer to... more
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02/10/22

Integral of cot(x)csc^2(x)
I know how to do this problem correctly setting u = cot(x) but at first I tried setting u = sin(x) then I converted the whole cot(x)csc^2(x) into (cosx/sinx)(1/sin^2(x)). u = sin(x) and du = cos(x)... more
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02/10/22

Help! Thanks! chemistry homework
2 NH3  +  3 CuO   g  3 Cu  +  N2  +   3 H2OIn the above equation how many moles of water can be made when 91 moles of NH3 are consumed?
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02/10/22

Hess's Law Paper
Consider the formation of ethane. a. provided the following data, calculate ΔH for the reaction:2 C (s) + 3 H2 (g) ---> C2H6 (g)4 C2H6 (g) + 14 O2 (g) --> 8 CO2 (g) + 12 H2O (l) ΔH = -6240... more
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02/10/22

I am struggling with my math

Given the first term and the common ratio of a geometric sequence, find the term named BY USING THE APPROPRIATE FORMULA. DO NOT WRITE A LIST OF TERMS TO FIGURE IT OUT. NO CREDIT WILL BE... more
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02/10/22

Physics question

A spring with stiffness constant k = 72 N/m is compressed horizontally a total of 2.0 meters. A mass of 3 kg is placed in front of the spring and receives all of the spring's potential energy when... more
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02/09/22

Find equations for the tangent line and normal line to the circle at each given point. (The normal line at a point is perpendicular to the tangent line at the point.)
x2 + y2 = 25(3, -4), (-4, -3)At (3, -4)Tangent Line: y=?Normal Line: y=?At (-4, -3)Tangent Line: y=?Normal Line: y=?
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02/09/22

What are the magnitude and the direction of the force on a -5.31-nC charge in an electric field of +2750 N/C Ăź – 8830 N/C Ä”?
The equation to find the magnitude of force is F=qE, the answer key for this practice problem is in micronewtons and gives that the answer is 49.1 micronewtons, however, I keep getting 32.3... more
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02/09/22

Finding an equation ( P(t)= )
A population of animals oscillates sinusoidally between a low of 200 on January 1 and a high of 800 on July 1. Graph the population against time and use your graph to find a formula for the... more
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02/09/22

Elementary statistics
Suppose a 6-sided die is weighted so that the probability of an outcome is proportional to the outcome. That is, P p P p P p P p P p P p (1 2 2 3 3 4 4 5 5 6 6 ) = = = = = = ( ) ( ) ( ) ( ) ( )... more
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02/08/22

Ms. Tina Stevens just purchased a new dress that cost $120. What is the probability that she paid cash?
The credit department of Lion’s Department Store in Anaheim, California, reported that 28% of their sales are cash, 24% are paid with a credit card, and 48% with a debit card. Twenty percent of the... more
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02/08/22

can anyone help me with this? thank you in advanced

A water tank is filled with water to a height of 8 m. Compute the total pressure at the bottom of the container. Given the density of water is 1000 kg m and the atmospheric pressure is 1.0 x 10^5 Pa.
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02/08/22

The normal daily maximum temperatures T (in degrees Fahrenheit) for a certain city are shown in the table.
Month Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Temperature 31.0 35.3 46.6 59.0 70.0 79.7 84.1 81.9 74.8 62.3 48.2 34.8 (a)Use a graphing utility to plot the data and find a model for... more
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