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Integrate 3x^2

3x^2 Integrate you add one to the power and divide by that number. In this case:3x^2 = (3x^3)/3 = x^3

Answered by Jiano P. • Maths tutor

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10 girls and 15 boys sit a test. The mean mark for the boys is 70. The mean mark for girls is 82. Work out the mean mark for the whole class.

boys' total = 70 x 15 = 1050 girls' total = 82 x 10 = 820 Total = 1870 mean = 1870/ 25 = 74.3

Answered by Sharon C. • Maths tutor

9029 Views

How do accent marks work in Spanish?

Accent marks, or 'tildes' can be tricky in Spanish, and in some cases they are just diacritical marks, meaning they indicate that two words have different meanigs as in 'más' (more) and 'mas' (but). Howev...

Answered by Claudia M. • Spanish tutor

3410 Views

The graph of y = x^2 – 1 is translated 3 units to the left to give graph A.The equation of graphA can be written in the form y=x^2 +bx+c Work out the values of b and c.

identify what the question is asking -> both translation rules and expansion of bracketstranslation rule --> translation of 3units left on x-axis actually gives a the graph of y=(x+3)^2 -1. This is ...

Answered by Georgia P. • Maths tutor

7003 Views

Solve simultaneously: 3x+2y=7 & x-2y=-3

Add the 2 eqns together to eliminate the y's to give: 4x=4. Divide by 4 to give x=1Now substitute x=1 into the first eqn: 3+2y=7. Subtract 3 from both sides -> 2y=4. Divide by 2 to give y=2.Now, check ...

Answered by Katie L. • Maths tutor

4044 Views