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4 years ago

Evaluate g(t)=3.5x2^t for t=-2 0.25 0.125 0.875 0.5

Mathematics

1 answer:

FrozenT [24]4 years ago

5 0

Answer:

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Step-by-step explanation:

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What is the solution to the system of equations? 5x-2y=-16 4x-5y=-23

Aleksandr [31]

Answer:

The solution set is {-2, 3}.

Step-by-step explanation:

We can do this by elimination after manipulating the 2 equations so that the coefficients of y will disappear after addition:

5x - 2y = -16 Multiply this by -5:

-25x + 10y = 80 ...........(A)

4x - 5y = -23 Multiply this by 2:

8x - 10y = -46..............(B)

Now add A and B:

-17x = 34

x = 34/-17

x = -2.

Now substitute x = -2 into the first original equation:

5(-2) - 2y = -16

-2y = -16 +10 = -6

y = -6/-2

y = 3.

Confirm these results by substitution in the second original equation:

4(-2) - 5(3)

= - 8 - 15 = -23.

Checks OK.

4 0

3 years ago

How do I even start this? And how to i order the equation to solve

Kobotan [32]

$f(g(h(x)))=f(g(\sqrt x))=f(\sqrt x-1)=\boxed{(\sqrt x-1)^4+4}$

This is because

$h(x)=\sqrt x$

$g(x)=x-1$

$\implies g(h(x))=\sqrt x-1$

(that is, replace any instance of x in the definition of g with √x )

and

$f(x)=x^4+4$

$\implies f(\sqrt x-1)=(\sqrt x-1)^4+4$

(replace any x in f with √x - 1)

Also acceptable:

$(\sqrt x-1)^4+4=((\sqrt x)^4-4(\sqrt x)^3+6(\sqrt x)^2-4\sqrt x+1)+4$

$=\boxed{x^2-4x\sqrt x+6x-4\sqrt x+5}$

(assuming x is not negative)

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3 years ago

What's the range of 37000 and 45000

Galina-37 [17]

Range: Subtract 37000 from 45000 and you'll have it.

8 0

3 years ago

Ok here is the question I need it answered fast I'll give brainliest!

natima [27]

Answer:

It’s C!!!

Explanation: have an amazing day!

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3 years ago

Please help!!! I will mark best answer!

Kisachek [45]

Answer:

Step-by-step explanation:

7 0

3 years ago