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3 years ago

Given f(x)=x2+2x−8, find f(−2).

Mathematics

2 answers:

Sloan [31]3 years ago

6 0

Answer:

-8 is the answers for the question

Step-by-step explanation:

please please give me brainlest

Mariulka [41]3 years ago

4 0

Answer:

-8

Step-by-step explanation:

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I need help on these 4 chooses.If you are able to help me i would appreciate it because i have been stuck on this for an hour or

diamong [38]

Answer:

does
216
more
194.25

Step-by-step explanation:

If you don't consider how the wood might be cut, or how the tray might be assembled, you can look only at the area requirements.

A tray that is 10.5 inches square will have an area of ...

(10.5 in)^2 = 110.25 in^2

That base will have a perimeter that is 4×10.5 in = 42 in. If the perimeter piece(s) are 2 inches high, the area of the sides of the tray will be ...

(42 in)(2 in) = 84 in^2

Then the total area of wood required for the proposed tray is ...

110.25 in^2 +84 in^2 = 194.25 in^2

The area of the wood Stephan has is ...

A = LW = (18 in)(12 in) = 216 in^2 . . . . . . more than required

Stephan does have enough wood to make the tray, because he has 216 square inches, which is more than he needs to make the tray, 194.25 square inches.

6 0

3 years ago

When the sum of 9 and a certain number is divide by 2 the result is equal to five times the original number minus 3 what ii the

pav-90 [236]

Answer: 20/3????

Step-by-step explanation:

4 0

3 years ago

Find the the slope of the line passing through points 2,2 and -1,0

scZoUnD [109]

For a given function, slope is defined as the change in outputs, or y-values divided by the change in inputs, or x-values. In essence the slope asks "For a given change in x, how much does y change?" or even more simply: "How steep is the graph of this function?". This can be represented mathematically by the formula: $slope=m=\frac{rise}{run}=\frac{\Delta y}{\Delta x}-\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substituting our known vlaues we have:
$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$
$m=\frac{2-0}{2-(-1)}$
$m=\frac{2}{3}$

7 0

3 years ago

Write 3.63 x 10^-5 in standard notation.

Rudik [331]

Answer:

3.63E-5

Step-by-step explanation:

Convert 3.63 x 10^-5 from a scientific calculator

We do this by raising 10^n power * whole number entered where n=-5

3.63 x 10^-5 converted to a number = 3.63 x 1.0E-5

3.63 x 1.0E-5 converted to a number = 3.63E-5

5 0

3 years ago

Find the equation of parabola

Oksana_A [137]

Answer:

somone in my class is literally a new York rat

Step-by-step explanation:

8 0

1 year ago