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y=7-2x^5. What's dy/dx?Find an equation for the tangent to the curve where x=1. Is itan increasing or decreasing function when x=-2?

dy/dx=-10x^4When x-1, gradient =-10 Tangent is then: y+10x=15When x=-2, dy/dx=-160 so a decreasing function

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How does one distinguish between the perfect tense (passé composé) and the imperfect tense (imparfait)?

The perfect tense (passé composé) is used to depict a single past action that has been completed. Specific time phrases such as 'last weekend' (le weekend dernier), 'last week' (la semaine dernière) and '...

Answered by Emily I. • French tutor

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Que era el papel de la mujer durante los años cincuenta? (utiliza el preterito imperfecto)

Suggested answer of something a pupil would be expected to say :Durante esa epoca las mujeres no TENÍAN mucho poder en la sociedad. CUIDABA a sus hijos mientras que los hombres TRABAJABAN. No HABÍA muchos...

Answered by Honor W. • Spanish tutor

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Factorise the following: 21x(squared)-35x

The question is asking us to factorise, this means put the equation into a simplified bracket. The first step is to find the highest common factor (HCF), the HCF must be a factor of 21x² as wel...

Answered by Annesa M. • Maths tutor

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‘We’ve given them more than we’ve taken away, said the Commander.’ To what extent do you agree that women have gained under the Gileadean regime?

To begin with, if Atwood’s ‘The Handmaid’s Tale’ is viewed in a holistic way, it is clear that the Handmaids have lost many of their rights and freedom within the constraints of Gilead, in conjunction wit...

Answered by Olivia W. • English tutor

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