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Stella [2.4K]
3 years ago
6

W (n) = n^2-n find w (-3)

Mathematics
1 answer:
Papessa [141]3 years ago
5 0

Answer:

w(-3) = 12

Step-by-step explanation:

Plug in -3 for n in the equation:

w(n) = n^2 - n

w(-3) = (-3)^{2} - (-3)

Simplify. Remember to follow PEMDAS. First, solve the power:

w (-3) = (-3)^2 - (-3)\\w (-3) = (-3 * -3) - (-3)\\w (-3) = (9) - (-3)

Next, combine like terms. Note that if there are two negative signs directly next to each other, it becomes a positive sign. Add:

w(-3) = 9 - (-3)\\w(-3) = 9 + 3\\w(-3) = 12

Your answer: w(-3) = 12

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What is the inverse of the function f(x)=2x+1​
riadik2000 [5.3K]

Answer:

Step-by-step explanation:

To find the inverse function, the first step we do is change f(x) to Y. So now, we have

y=2x+1

Now that we have this function, we simply flip x and y. When we do that, we get

x=2y+1

Now that we have this function, we just solve for Y. We do that by bring 1 to the other side by subtracting it from both sides, then dividing both sides by 2.

x-1=2y+1-1

x-1=2y

(x-1)/2=2y/2

(x-1)/2=y

So, our inverse function is:

y=(x-1)/2, or y=x/2 - 1/2

Hope I helped!

7 0
4 years ago
What’s the answer for this
Serhud [2]

Answer:

D

Step-by-step explanation:

4 0
3 years ago
Tell the answer of this please:<br> 5- {2*[(-5power2) -7 ] /3}
blondinia [14]

Answer:

-60

Step-by-step explanation:

Given the expression

5- {2*[(-5power2) -7 ] /3}

= 5- {2*[(25) -7 ] /3}

= 5- {2*[18 ] /3}

= -5 [2*6]

= -5(12)

= -60

Hence the required answer is -60

7 0
3 years ago
Which of the following illustrates the truth value of the given conditional statement?
adoni [48]

Answer:

p.10 > 7

Step-by-step explanation:

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3 years ago
A helicopter hovers 1450 feet above a small island. The figure shows that the angle of depression from the helicopter to point P
puteri [66]

Answer:

1668 feet.

Step-by-step explanation:

We know the opposite side of the right triangle and we need the adjacent side, so we use the tangent function.

If the distance required is x  (adj side) we have:

tan 41 = opp/adj

tan 41 = 1450/x

x = 1450 / tan 41

= 1668.03

5 0
3 years ago
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