Calculus

4 x 2 + 4 = 12

x = 4

5x2 + 8x = 7

5x2 + 8x - 7 = 0

This cannot be factorised so the solutions need to be determined using the quadratic formula

The solutions are {-8 ± sqrt[82 - 4*5*(-7)]}/(2*5)

= {-8 ± sqrt[64 + 140]}/10

= {-8 ± sqrt[204]}/10

= -2.22829 and 0.62829 (to 5 dp)

Yes.

First, find the area under the curve y = 1/x2, with boundary lines x = 1 and x = 6, by calculating the integral of 1/x2 with lower limit 1, and upper limit 6. Then divide it by 2.

(6)integral(1) of (1/x2) dx = (6)integral(1) of (x--2) dx = -x-1|(6),(1) = -1/x|(6)(1) = -1/6 +1 = 5/6.

Thus, the half of the area under the curve is 5/12.

4d3 multiplications add in powers.

(x+4)(x-5) = 0

it is 12

y-5x

6.

Your problem can be written as y≤6≤y. Since the value y must be either less than AND greater than 6 OR simply equal to 6, the only number that can go on both sides of this inequality is 6.

-1

The Precambrian is the largest span of time in Earth's history before the current Phanerozoic Eon, and is a Supereon divided into several eons of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago (Ga) to the beginning of the Cambrian Period, about 541.0 ± 1.0 million years ago (Ma), when hard-shelled creatures first appeared in abundance.

52 x 4 is always 208, regardless of the impedance.

3x + 4y = -4 defines a line in 2-dimensional space and the coordinates of every point on the line is an ordered pair that satisfies the equation. I have neither the time nor the inclination to list an infinite number of ordered pairs.

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If you already know that x = -3 and y = 5 what linear equations are you wanting to solve?

what are the two method naming sets

technically, you need to put in a second variable, x, at the end of the equation.

The x value represents the line going up and down on a graph. The y axis represents the line going side to sdie of the graph. An example is (3, -2) the x value is the 3. that means you go across (the side to side line) to the third point and put your dot there. the -2 is the y value. then you go to the line pointing up and down and go down two spots from the middle where the lines meet.

You cannot solve x plus y since that is an expression, not an equation (nor inequality).

The answer depends on what x is. And also, it is a trapezoid, not trapizoid!

$1.00 = 100 pennies

$10.00 = 1000 pennies

$100.00 = 10,000 pennies

# of pennies divided by 100 = dollars

100,000,000 pennies divided by 100 = $1,000,000.00 (one million dollars)

x-intercept | -10

y-intercept | 4

slope | 2/5 = 0.4

The easiest way to do this would be to put the equation for y in terms of x.

We have x+y = 6

subtracting x from both sides gives y = 6 - x

This is of the form y = ax + b where b is 6 and a is minus 1.

So the graph will be a line, with gradient minus 1, that crosses the y axis at y=6

an unknown. eg x+1=3 means something plus 1=3. the unknown, or 'something' must be 2. therefore x=2

12x = 4(x+5)

3x = x+5 divide by 4

2x = 5 subtract x

x = 2.5 divide by 2