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soldier1979 [14.2K]
3 years ago
14

Hat is the value of the expression –5x4 when x = –2?

Mathematics
1 answer:
sleet_krkn [62]3 years ago
7 0

\bold{Hey\ there!}

\bold{Assuming,\ you\ meant: -5(-2)^4}

  • \bold{If\ so\ follow\ these\ steps\downarrow}
  • \bold{(-2)^4=16}
  • \bold{(-5)\times 16=-80}
  • \boxed{\boxed{\bold {Thus,\ your\ answer\ is: -80}}}\checkmark

\bold{Good\ luck\ on\ your\ assignment\ \& \ enjoy\ your\ day!}

~\frak{LoveYourselfFirst:)}

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What the answer to f(x)=3x-1<br> G(x)=x^2-x-4<br> Findf(g(x)
BabaBlast [244]

Answer:

honestly i think its 2f=9x

Step-by-step explanation:

might not be 2f=9x but make sure to chexk your answer

7 0
3 years ago
Inverse laplace of [(1/s^2)-(48/s^5)]
Katen [24]
**Refresh page if you see [ tex ]**

I am not familiar with Laplace transforms, so my explanation probably won't help, but given that for two Laplace transform F(s) and G(s), then \mathcal{L}^{-1}\{aF(s)+bG(s)\} = a\mathcal{L}^{-1}\{F(s)\}+b\mathcal{L}^{-1}\{G(s)\}

Given that \dfrac{1}{s^2} = \dfrac{1!}{s^2} and -\dfrac{48}{s^5} = -2\cdot\dfrac{4!}{s^5}

So you have \mathcal{L}^{-1}\left\{\dfrac{1}{s^2} - 2\cdot\dfrac{4!}{s^5}\right\} = \mathcal{L}^{-1}\left\{\dfrac{1}{s^2}\right\} - 2\mathcal{L}^{-1}\left\{\dfrac{4!}{s^5}\right\}

From Table of Laplace Transform, you have \mathcal{L}\{t^n\} = \dfrac{n!}{s^{n+1}} and hence \mathcal{L}^{-1}\left\{\dfrac{n!}{s^{n+1}}\right\} = t^n

So you have \mathcal{L}^{-1}\left\{\dfrac{1}{s^2}\right\} - 2\mathcal{L}^{-1}\left\{\dfrac{4!}{s^5}\right\} = \boxed{t-2t^4}.

Hope this helps...
7 0
3 years ago
Find the midpoint of the segment with the following endpoints.<br> (10,2) and (5, -7)
Sati [7]

Answer:

(7.5 , -2.5)

Step-by-step explanation:

Sub the values into this formula

4 0
3 years ago
It takes 40 minutes for 8 people to paint 4 walls. How many minutes does it take 19people to paint 7 walls?
Slav-nsk [51]
Hey hey!


56 would be the answer.

WAIT, don’t leave just yet! You have to show at least some work! You CANT learn if you don’t know what you’re doing.

Here’s how I got the answer:

7:4 walls = 10:8 people =M:40 minutes
M = (7/4) / (10/8) x 40
M = 56 minutes.

If that helped let me know by hitting the thanks button or reply with any help you need.

Have a FABULOUS DAYYY!


3 0
3 years ago
Find the circumference of the circle shown below if the diameter equals 20 inches. Use 3.14 for π.
Rasek [7]

Answer:

62.83

because you take 20, divide it by 2 to get the radius then you have the equation 2π(10)

3 0
3 years ago
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