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ikadub [295]
3 years ago
14

Evaluate f(t)=-2t^2+ 1 for f(-3). PLEASE HELP I BEG YOU!!!!!!!!!!!

Mathematics
1 answer:
choli [55]3 years ago
6 0

Answer:

f(-3)=-17

Step-by-step explanation:

→ Substitute in t = -3 into f(t)=-2t^{2} +1

f(-3)=-2*-3^{2} +1

→ Simplify

f(-3)=-2*9 +1

→ Simplify

f(-3)=-18 +1 ⇔ f(-3)=-17

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Answer:

its 3 3/4 :)

Step-by-step explanation:

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A water-efficient washer costs $400 more than a regular washer and saves 100 l of water for each load. if water costs $5 per 1,0
Kruka [31]
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5 0
3 years ago
Please help with the first question....
Morgarella [4.7K]

Answer:

  A)  The functions are not inverses of each other.

Step-by-step explanation:

f(g(x))=\sqrt{(x^2+3)-3}=\sqrt{x^2}=|x|\ne x

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In general, a quadratic (or any even-degree polynomial) such as g(x) cannot have an inverse function because it does not pass the horizontal line test.

7 0
3 years ago
What are the solutions of the quadratic equation 4x^2-8x-12=0
Wewaii [24]

Answer:

<h3>          x₁ = -1,   x₂ = 3</h3>

Step-by-step explanation:

4x^2-8x-12=0\\{}\qquad\qquad^{\div4\qquad\div4}\\x^2-2x-3=0\\\\x^2+x-3x-3=0\\\\x(x+1)-3(x+1)=0\\\\(x+1)(x-3)=0\\\\x+1=0\quad\vee\quad x-3=0\\\\x=-1\quad\vee\quad x=3

6 0
3 years ago
The function d(x) = |x 100| can be used to find the number of degrees a container of water at a temperature of x degrees Celsius
Volgvan

Answer:

f(d(x)) = \frac{9}{5}|x^{100}| + 32

Step-by-step explanation:

The function d(x) takes a value of x in degrees centigrade and provides the number of degrees that a container of water at that temperature x is far from the boiling point of water.

The function f(d) takes a value d in degrees centigrade and returns a value d(x) in degrees fahrenheit.

Therefore, by doing f(d(x)) we are introducing the function d(x) within the function f(d).

So the range of d(x) now is the domain of f(d(x))

This means that the function f(d(x)) shows the <em>number of degrees Fahrenheit</em> that a water container at a<em> temperature x in degrees Celsius</em> is far from the boiling point of water.

f(d(x)) = \frac{9}{5}|x^{100}| + 32

6 0
3 years ago
Read 2 more answers
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