Calculus

4x2=8 8+22=30

You get 30 it really is simple

o.25

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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

3

4 x 2 x 3 x 5 = 120

x=0 and y=-1

2+2/x/2+2/x^2=2+1/x+2/x^2

x = 5, y = 1

(x+6)(X+20)

• 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

Yes.

x = -1

(4*x*3)/2x=

12x/2x=


6

True.

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

x1/5

Please note that there are infinitely many solutions. The slopes of two perpendicular lines have a product of minus 1. The line is in slope-intercept form, so it is easy to read off the slope: -5. The line perpendicular to it must have a slope of -1 / -5, or 1/5. In other words, the equation of the perpendicular line is y = (1/5)x + c; you can replace c with any number you want.

There appears to be no equation in the question: only some disjoint expressions. Expressions cannot be solved.

well you divide by ten

that's it

the answer is 0.33333

2

-7

7/100

11(eleven)

49/16 = (7^2)/(4^2) = (7/4)^2 = ((4/7)^-1)^2 = (4/7)^-2

Thus as (4/7)^2 = 49/16 and 49/16 = (4/7)^-2

(4/7)^x = (4/7)^-2

Therefore x = -2.