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Tamiku [17]
3 years ago
11

WILL BRAINLIST IF RIGHT (20points)

Mathematics
1 answer:
Lena [83]3 years ago
6 0

Answer:

-24.1t^2+3

Step-by-step explanation:

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Please help I beg show work<br><br><br> A 50<br> B 12<br> C 13 <br> D 51
nikklg [1K]

Answer:

<h2>A 50 HI PO SA FOR THE FIRST TIME IN MY LIFE AND </h2>
8 0
3 years ago
The plans for a house are drawn at scale of 1/4 inch to 1 foot. If the bedroom is 10 feet wide, what is its width on the plan?
viva [34]

Answer:

2.5 inches

Step-by-step explanation:

(1/4) x 10 = 2.5

or .25 x 10 = 2.5

5 0
3 years ago
Consider the differential equation y'' − y' − 30y = 0. Verify that the functions e−5x and e6x form a fundamental set of solution
Alex Ar [27]

Answer:

Step-by-step explanation:

We have to take the derivatives for both functions and replace in the differential equation. Hence

for y=e^{-5x}:

y(x)=e^{-5x}\\y'(x)=-5e^{-5x}\\y''(x)=25e^{-5x}\\

for y=e^{6x}:

y(x)=e^{6x}\\y'(x)=6e^{6x}\\y''(x)=36e^{6x}\\

Now we replace in the differential equation  y'' − y' − 30y = 0

for y=e^{-5x}:

25e^{-5x}+5e^{-5x}-30e^{-5x}=0\\25+5-30=0

for y=e^{6x}:

36e^{6x}-6e^{6x}-30=0\\36-6+30=0

Now, to know if both function are linearly independent we calculate the Wronskian

W(f,g)=fg'-f'g

W(e^{-5x},e^{6x})=(e^{-5x})(6e^{6x})-(-5e^{-5x})(e^{6x})\neq 0

I hope this is useful for you

Best regard

7 0
3 years ago
(5x +<br> 12)<br> 48°<br> solve for x.
zimovet [89]

Answer: It is 108

Step-by-step explanation:

7 0
3 years ago
There is 7 5/9 wood and people took 3 2/15 pieces. How many more pieces are there
GalinKa [24]
What you have to do is subtract 3 2/15 from 7 5/9. You can also use decimals but that doesn't work all the time since the are infinite numbers (you will see what I mean later on) So what you can do is find the improper fraction of each one, and subtract it from each other. It would be 68/9 - 47/15, which would give you a total of 4 19/45. YOU'RE WELCOME :)
5 0
3 years ago
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