Solve r=s/17−t for t

The ranger of the function x2+2x-8is allá

allsm [11]

Answer:

$\mathrm{Range\:of\:}x^2+2x-8:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:-9\:\\ \:\mathrm{Interval\:Notation:}&\:[-9,\:\infty \:)\end{bmatrix}$

Step-by-step explanation:

As the function is

$x^{2} +2x-8$

As we know that domain is the set of input values for which the function is defined.

Therefore,

$\mathrm{Domain\:of\:}\:x^2+2x-8\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

And range is defined as:

The set of the dependent variable for which the function is defined.

As

$\mathrm{For\:a\:parabola}\:ax^2+bx+c\:\mathrm{with\:Vertex}\:\left(x_v,\:y_v\right)$

$\mathrm{If}\:a$

$\mathrm{If}\:a>0\:\mathrm{the\:range\:is}\:f\left(x\right)\ge \:y_v$

$a=1,\:\mathrm{Vertex}\:\left(x_v,\:y_v\right)=\left(-1,\:-9\right)$

$f\left(x\right)\ge \:-9$

Therefore,

$\mathrm{Range\:of\:}x^2+2x-8:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:-9\:\\ \:\mathrm{Interval\:Notation:}&\:[-9,\:\infty \:)\end{bmatrix}$

The graph is also attached below.

Keywords: graph, domain, range

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8 0

3 years ago

Find surface area please

Kaylis [27]

Answer:

The area is 54.6

Step-by-step explanation:

Hopefully this helps!

4 0

3 years ago

Help me solve this please!

sergiy2304 [10]

Answer: -1, 0, 1, 2, 3

Step-by-step explanation:

If we say the expression out loud, we say it as "m is greater than -2 but less than or equal to 3."

This is because < or > means less than or greater than. These don't include the given value.

≤ or ≥ means less than or equal to or greater than or equal to. These do include the given value/values.

In this equation, we don't include -2, but we include 3. That's why the included values are -1, 0, 1, 2, 3.

8 0

3 years ago

What is the length (in cm) of a rectangle with width 14 cm and area 168² cm

kati45 [8]

Answer:

12

Step-by-step explanation:

Area = length * width

length = area ÷ width

4 0

3 years ago

to make a little spending money, taylor decided to sell special souvenir programs for the exeter andover wrestling match. the pr

Dvinal [7]

Answer: she printed 200 programs

Step-by-step explanation:

Let x represent the number of programs that were printed.

The printing cost was $0.32 per program. This means that the total cost of printing x programs would be 0.32 × x = $0.32x

They were priced at $0.50 each. This means that the total revenue from selling x programs is 0.5 × x = $0.5x

Taylor sold all but 50 programs. It means that the number of programs sold is

x - 50 and the total revenue from the number of programs sold is 0.5(x - 50)

Revenue - cost = profit

Taylor made a small profit of $11. It means that

0.5(x - 50) - 0.32x= 11

0.5x - 25 - 0.32x = 11

0.5x - 0.32x = 11 + 25

0.18x = 36

x = 36/0.18

x = 200

6 0

3 years ago