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3 years ago

Will give brainilest!

Mathematics

1 answer:

lara [203]3 years ago

7 0

1/3 of the wall is covered in stone

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Help solve please thanks

Wittaler [7]

The answer was
-35 a^4 -12 a^2 + 12
Hope that helps you

3 0

4 years ago

What term should be added to t^2+11t, to make it a perfect square trinomial?

Sholpan [36]

Term to be added is: + 121/4

t^2 + 11t + 121/4

(t + 11/2) (t + 11/2)

6 0

3 years ago

A gold mine has two elevators, one for equipment and another for the miners. The equipment elevator descends 4 feet per second.

GrogVix [38]

Answer:

140 feet

Step-by-step explanation:

6 0

3 years ago

Find the inverse laplace transform of: (2 s + 4) / (s - 3)^3

Serhud [2]

Answer:

$e^{3t}(2t+5t^{2})$

Step-by-step explanation:

$L^{-1}[\frac{2s+4}{(s-3)^{3}} ]=$

Using the Translation theorem to transform the s-3 to s, that means multiplying by and change s to s+3

Translation theorem: $L^{1} [F(s-a)=L^{-1}[F(s)|_{s \to s-a}\\ L^{1} [F(s-a)=e^{at} f(t)$

$L^{-1}[\frac{2s+4}{(s-3)^{3}} ]=e^{3t} L^{-1}[\frac{2(s+3)+4}{s^{3}} ]$

Separate the fraction in a sum:

$e^{3t} L^{-1}[\frac{2s+10}{s^{3}} ]=e^{3t} L^{-1}[\frac{2s}{s^{3}}+\frac{10}{s^{3}} ]=e^{3t} (L^{-1}[\frac{2}{s^{2}}]+ L^{-1}[\frac{10}{s^{3}}])$

The formula for this is:

$L^{-1}[\frac{n!}{s^{n+1}} ]=t^{n}$

Modify the expression to match the formula.

$e^{3t} (2L^{-1}[\frac{1}{s^{1+1}}]+ \frac{10}{2} L^{-1}[\frac{2}{s^{2+1}}])=e^{3t} (2L^{-1}[\frac{1}{s^{1+1}}]+ 5 L^{-1}[\frac{2}{s^{2+1}}])$

Solve

$e^{3t} (2L^{-1}[\frac{1}{s^{1+1}}]+ 5 L^{-1}[\frac{2}{s^{2+1}}])=e^{3t}(2t+5t^{2} )$

6 0

3 years ago

Is the number 56 prime or composite

Wewaii [24]

Answer:

Composite

Step-by-step explanation:

The number 56 is a composite number.

7 0

4 years ago

Read 2 more answers