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3 years ago

Find the solution set x^2+2x-8=0 separate the two answers with a comma

Mathematics

1 answer:

EastWind [94]3 years ago

3 0

Answer:

-4, 2

Step-by-step explanation:

The equation can be factored as ...

(x +4)(x -2) = 0

This has solutions that make the factors zero:

x = -4, x = 2

The solution set is {-4, 2}.

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Olegator [25]

Answer: all of them are correct! great job!!!1

Step-by-step explanation:

.4 is 40 percent because you move the decimal two spaces to the right so it would be 40 percent, same as the others!

5 0

2 years ago

Read 2 more answers

X (dy/dx) = (y-1/y+1)-y

notsponge [240]

F' $( \frac{y-1}{y+1})-y$ =
f' $( \frac{y-1}{y+1})$ -f'(y) [/tex]=
$\frac{f'(y-1)(y+1)-f'(y+1)(y-1)}{(y+1)^2} -1$ =
$\frac{(f'(y)-f'(1))(y+1)-(f'(y)+f'(1))(y-1)}{(y+1)^2} -1$ =
$\frac{(1-0)(y+1)-(1-0)(y-1)}{(y+1)^2} -1$ =
$\frac{(1)(y+1)-(1)(y-1)}{(y+1)^2} -1$ =
$\frac{(y+1)-(y-1)}{(y+1)^2} -1$ =
$\frac{y+1-y+1}{(y+1)^2} -1$ =
$\frac{2}{(y+1)^2} -1$

8 0

2 years ago

What is the mechanical advantage of a ramp that is 5 m long and 1.5 m high

skad [1K]

It would 7.5 meters long

8 0

2 years ago

Hi and hello have a nice day

Inga [223]

Answer:

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Step-by-step explanation:

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8 0

2 years ago

The points (0,2) and (1,5) are on a line which of these points is on the same line

katrin [286]

Answer:

y = 3x + 2

Step-by-step explanation:

The equation for two points on a line is generated from the straight line equation y = mx + b ---------------- eqn (i)

where m, the slope = (y2 - y1) / (x2 - x1)

therefore for (0,2) and (1,5) m = (5 - 2)/(1 - 0) = 3

This implies that eqn (i) can be rewritten as:

y = 3x + b ------------------- eqn (ii)

pickintg the point (0,2) and substituting into eqn (ii)

2 = 3(0) + b

this implies that b = 2

for confirmation with (1,5)

5 = 3(1) + b

b = 5 - 3 = 2

hence m = 3, b = 2

the equation is y = 3x + 2

6 0

3 years ago