Calculus

Tidal waves, current are to name a few.

One

3.7844.....

^ here

8

y4 times y3 = y7

(4*x*3)/2x=

12x/2x=


6

D=Diameter, pi=3.14159...

Area of circle = (D/2)2 * pi

7x + 3y = 14

5x + 9y = 10

__________ (subtract bottom from top)

2x -6y = 4, therefore 2x = 4 + 6y, therefore x = 2 + 3y

Insert x = 2 + 3y into the original equation and calculate

7(2 + 3y) +3y = 14

14 + 21y +3y = 14

24y = 0

y = 0

If y= 0, then x = 2 FINAL ANSWER!

4x2=8 8+22=30

You get 30 it really is simple

(600 x 3600/6)/5280 = 68.18 mph

x=1

0 and 1

To solve for two unknowns (x and y) it is necessary to have two independent equations.

o.25

* * * * *

The question is so simple that you can do the exact answer rather than estimate.

Multiplication by 0.5 is the same as division by 2. So the question is, effectively: 4.26/2

4/2 = 2

decimal point

2/2 = 1

6/2 = 3

So the exact answer is 2.13

4 x 2 x 3 x 5 = 120

3

You can't simplify this any further. y=-x is the equation of a line.

Yes.

• If y=3x+1, then y increases by 3 every time x increases by 1
• x=1 --> y=3(1)+1, y=4
• x=2 --> y=3(2)+1, y=7
• x=3 --> y=3(3)+1, y=10
• etc. It cannot be solved completely, rather it is a line that can be graphed with slope=3

-8x + 5 ≥ 11

Subtract 5 from both sides: -8x ≥ 6

Divide both sides by -8 (remember that dividing by a negative number changes the direction of the inequality): x ≤ -6/8 = -0.75

x = -1

x=0 and y=-1

11(eleven)

x = 5, y = 1