11/10/22

What is the specific heat of the unknown sample?
An irregular lump of an unknown metal has a measured density of 3.26 g/mL. The metal is heated to a temperature of 189 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C.... more
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11/09/22

Find an equation of the line that is tangent to the graph of f and parallel to the given line.
f(x) = x3 _______________ 3x-y+1=0 = y= 3x+1 = y' = 3 SLOPE I need help to find x1
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11/08/22

Given f(x) = 3x + 2 and g(x) = -2x2+4 Find f(g(2))
Given f(x) = 3x + 2 and g(x) = -2x2+4Find f(g(2))What would you do in order to solve? Explain in words the process to solving f(g(2)).
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11/08/22

The temperature of a sample of silver increased by 23.7∘C when 280 J of heat was applied. What is the mass of the sample in milligrams?
silver specific heat capacity= 0.235
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11/08/22

Precalculus: Polar to x,y representation
R=sin theta-cos theta R=3/(3-cos theta)
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11/06/22

Physics ut onramps
This question is typical on some driver's license exams: A car moving at 44 km/h skids15 m with locked brakes.How far will the car skid with locked brakes at 110 km/h? Assume that energy loss is... more
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11/05/22

Contacting a tutor not working

I keep trying to contact a tutor, but when I hit send, nothing happens. I have tried from three different devices. Please help!
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11/05/22

Why or where was the number 9 introduced in the answer to part b?
A cylinder (round can) has a circular base and a circular top with vertical sides in between. Let r be the radius of the top of the can and let h be the height. The surface area of the cylinder, A,... more
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11/04/22

Use technology to perform a linear regression to determine the equation for the line of best fit for this data. Estimate the value of y when x=25.
x: 20, 22, 24, 26, 28y: 9, 12, 16, 20, 23Please explain the steps clearly. I don't know how to use a linear regression/graphing calculator. I also don't have one.
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11/03/22

Find the inverse function of f. f(x) = 2 − 6x f −1(x) =

A table of values for a one-to-one function is given. Find the indicated value. x 1 2 3 4 5 6 f(x) 0 2 3 6 4 1 f(f −1(6)) = Find the inverse function of f.f(x) = 6x3 + 5f −1(x) =  Find the... more
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11/03/22

Pre-cal: Find the exact value of each of the following: a) sin (A+B) b) cos(A+B) c) sin(A-B) d) tan (A-B)
Find the exact value of each of the following:a) sin (A+B) b) cos(A+B)c) sin(A-B) d) tan (A-B)under the given conditions:i sin A = 3/5 , 0<A<pi/2 cos B = (2sqrt(3))/5 , ... more
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11/02/22

A problem using Newton's Second Law of Motion
A 4.00-kg object has a velocity of 3.00i m/s at one instant. Eight seconds later, its velocity has increased to (8.00i + 10.0j) m/s. Assuming the object was subject to a constant total force, find... more
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11/02/22

{y=3x+1 y=3x+7 how many soloutions
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11/02/22

Estimate the area under the graph of f(x)=x2+2x from x=1 to x=7 using 3 approximating rectangles and left endpoints.
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11/01/22

What would be a doubles fact for 1+2
My 7 year old is doing double facts so I need help to find out the double facts for 1+2
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11/01/22

The question below
A graph of a function f is given.Does f have an inverse?YesNo    If so, find the following. (If an answer does not exist, enter DNE.) f −1(−1)  =  f −1(2)  = 
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11/01/22

Balancing equations C2H6 + O2 => 3H2O + 2CO2
chemical balance this equation C2H6 + O2 => 3H2O + 2CO2
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11/01/22

fraction in lowest terms 3 ft to 64 in
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11/01/22

what is the equation of the line that passes through (-2,8) and (-4,-4)
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11/01/22

Consider a massive 500 kg boulder and a 1.0 kg rock. If both are dropped from the same height at the same time, which will hit the ground first? (Assume there is no air resistance)
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11/01/22

Two forces act on the same object. Force 1 is 6 N to the right. Force 2 is 7 N to the right. What is the net force?
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11/01/22

Two forces act on the same object. Force 1 is 6 N to the right. Force 2 is 7 N to the right. What is the net force?
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11/01/22

vector magnitude and angle
A)Determine the magnitude of the sum of the three vectors V⃗ 1=8.0i^−9.0j^,V⃗ 2=i^+j^V→1=8.0i^−9.0j^,V→2=i^+j^, and V⃗ 3=−2.0i^+5.0j^V→3=−2.0i^+5.0j^.b)Determine the angle (in degrees) of the sum... more
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11/01/22

Find the exact value of sin(A-B), cos(A-B) and tan(A-B)
Find the exact value of sin(A-B), cos(A-B) and tan(A-B)When, sin A = (2sqrt5) / 5 0<A< pi/2cos B = 3/5 -pi/2<B<0
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11/01/22

What mass of precipitate (in g) is formed when 80.0 mL of 0.500 M FeI₃ reacts with excess AgNO₃ in the following chemical reaction? FeI₃(aq) + 3 AgNO₃(aq) → 3 AgI(s) + Fe(NO₃)₃(aq)
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