Math & time

Differentiate y=son 4x with respect to x.

Find the equation of the ellipse with the focus at (1,2), directrix x+y+1=0 and eccentricty=½.

7¡+8¡=?

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!3!=?

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if f(x)=x³-3x+1/2, then f (1/2) is one of the following: (a)-7/8 (b)3/8 (c)7/8 (d)-5/8 (e)5/8

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2.3.4.1
3.b.1.a
1.2.3.4
4.1.2.c
Find a,b,c

0.0.0=0^6
0.0.0.0=0^24
0.0.=0²
0.0.0.0.0=?

Derived general formula for quadratic equation. Using c.s.m

Students finishing 2A Math:

22% have a math average  80%,

24% have a STAT 230 mark  80%,

20% have an overall average  80%,

14% have both a math average and STAT 230  80%,

13% have both an overall average and STAT 230  80%,

10% have all 3 of these averages 80%,

67% have none of these 3 averages 80%.

Find the probability a randomly chosen math student finishing 2A has math and overall averages both  80% and STAT 230  80%.

What Is Probability?