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Questions (40)

When an electric current is flowing through a wire, the force deflecting the charged particles is greatest when the wire is
1. 1 answer
2. 156 views
The power substation pictured uses transformers to step down the voltage in order to make it ready to travel over the
1. 1 answer
2. 154 views
In order to transport electricity over long distances efficiently requires high voltages. The device that uses electromagnetism
1. 1 answer
2. 120 views
8) The graph of r=4sinθ has which of the following characteristics?A: circle, diameter of 4, center at (0,2) B: circle,
1. 3 answers
2. 226 views
19) Find the product for the equations below. z₁ * z₂ (Use exact values, no decimals. Show your work)z₁= 1/2(cis pi/3) and
1. 5 answers
2. 139 views
17) Convert the rectangular form of the complex number into polar form.z= 2-2√3i A: z=4(cos 2pi/3 + i sin 2pi/3) B: z = 4cis
1. 1 answer
2. 219 views
Convert the polar form of the complex number into rectangular form.z = 3 sqrt 2cis 7pi/4 Show all your work. Show how you
1. 3 answers
2. 216 views
Describe the graph represented by the equation r= 6/3-4cos thetaA: ellipse with a vertical directrix at a distance of 3/2 units
1. 1 answer
2. 166 views
Find the polar equation that has an eccentricity of 1 and has a horizontal directrix located 2 units above the pole.A: r=2/1+sin
1. 2 answers
2. 171 views
An escalator in a department store is driven by a large electric motor whose power consumption changes with the load to keep the
1. 1 answer
2. 596 views
How to proof tangential and normal components of a vectorThank you
1. 2 answers
2. 570 views
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation for this isS2 (g) + C (s) <---> CS2 (g) Kc =
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2. 651 views
How many moles of magnesium are needed to react with 16 g of O2?2 MgO (s) + O2 (g) → 2 MgO (s)
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2. 622 views
Determine all values of x, (if any), at which the graph of the function has a horizontal tangent.y(x) = 6x/(x-9)^2 when i
1. 1 answer
2. 665 views
Find dy/dx by implicit differentiation given thattan(4x+y)=4x
1. 4 answers
2. 1,328 views
Find dy/dx by implicit differentiation.x^3+8x+x^13y-y^6=4
1. 2 answers
2. 906 views
Find the second derivative of the function.f(x)= (3x^3+7)^7
1. 4 answers
2. 1,255 views
Find the derivative of the function.f(x)= x^8√5-3x
1. 6 answers
2. 722 views
Use the Product Rule to differentiatef(u)= √u (5-u^6)
1. 1 answer
2. 561 views
Determine all values of x, (if any), at which the graph of the function has a horizontal tangent.y(x) = 6x/(x-9)^2
1. 2 answers
2. 2,367 views
Use the Quotient Rule to differentiate the function.f(x)= 8x/x^5+3
1. 1 answer
2. 503 views
Find the slope of the graph of the function at x = 5.f(x)= -2x^2+6/x^2
1. 1 answer
2. 336 views
what if i have 6 1/2 ft of lumber and i only need 3/5 how much is itZ?
1. 2 answers
2. 326 views
subtract 31m-31=r
1. 1 answer
2. 284 views
Andrew factored the expression 28x©ø-6x©÷-10x as 2x(14x©ø-3x©÷-5x) . But when Melissa applied the distributive law and
1. 1 answer
2. 745 views
The area of a rectangular athletic field is represented by the expression 16y²-49z² square meters. Write an algebraic
1. 1 answer
2. 870 views
Im in third grade and i don't understand colons.i have to proofread a paragraph and combine them using colons.
1. 1 answer
2. 690 views
What is the energy of a photon that has the same wavelength as a 12-eV electron? (h = 6.63 × 10-34 J×s)
1. 2 answers
2. 2,022 views
what is the rule for ___,68,___,94,___,120
1. 2 answers
2. 286 views
I HAVE THESE ANSWERS FOR THE PROBLEMS. COULD YOU DOUBLE CHECK PLEASE, THIS IS A PRACTICE QUIZ WHICH ISN'T A GRADE IT JUST HELPS
1. 2 answers
2. 1,342 views
Could you please solve so I can double check my answers for the practice quiz? Thank You!!1. Solve x^3 + 6x^2 + 13x + 10 = 0. a)
1. 5 answers
2. 663 views
I am also having trouble with this one, thanks!If y varies jointly as x and the cube root of z, and y=120 when x=3 and z=8, find
1. 2 answers
2. 2,814 views
I am having trouble with this problem, thanks!If y varies jointly as x and the cube of z, and y=378 when x=4 and z=3, find y
1. 1 answer
2. 596 views
Just one more.. Thanks for the last one!16^(d-4) = 3^(3-d) solve for d
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2. 365 views
7^t-2 = 5^t
1. 3 answers
2. 344 views
What is the sum of the coefficients (including “1”) of the following reaction?Sodium sulfate + calciumhydroxide--> ???
1. 1 answer
2. 424 views
Could you help me on solving these please? thanks-135 = -5b^-3 and -9.6=-.3b^x
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2. 1,045 views
PLEASE HELP wiTH ALL OF THEse. I DON'T KNOW WHERE TO START---THANKS!1. At 2pm the number of bacteria in a colony was 100, by 4pm
1. 5 answers
2. 837 views
write an exponential function whose graph passes throught the given points... (0,3)and
1. 1 answer
2. 802 views
What is the sum of the coefficients (including “1”) of the balanced equation?__CaCO3 + __NaF __ CaF2 + __Na2CO3 4 5 6 7 8 If
1. 4 answers
2. 790 views

Answers (19)

conduction
yes, i said ur mom
ur mom
21
Couldn't find any proofs for these Maybe a link would be great] Thanks
what are the first three terms of the sequence a1=2 and an=3(an-1)2
0 m/s ^2
from the ans choices i choose: dy/dx= - 4x^2/x^2+1 is that right
dy/dx = 3x^2+8+13x^12y / 6y^5-x^13
I have these ans choices: A. f= 63x(7+3x^3)^5 (14+60x^3) B. f= 63x(7+3x^3)^5 (14+63x^3) C. f= 63x(7+3x)^5 (14+63x^3) D. f= 63x(7+3x^3)^5 (14-60x^3)
thanks jai
am lost
but the ans is f(x)= x^7(80-51x)/2√5-3x
I have these answer choices: x=9 and x=6 x=-9 x=-9 and x=6 x= 6 The graph has no horizontal tangents.
I got it. Never mind.
1) a 2) b 3) d 4) a 5) d
it is not a test, it is a practice quiz they helped us make in order to prepare for the test, I just want help double checking my answers
yes
I posted under my friends name accidentally.. but number 2 is .2 because I found molar mass. Number 3 4 and 5 is where I get lost

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