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Murrr4er [49]
3 years ago
15

I need help for the 5th time

Mathematics
1 answer:
Leviafan [203]3 years ago
8 0

Answer:

3.2t - 2.4

Step-by-step explanation:

Given

- 3.6 - 1.9t + 1.2 + 5.1t ← collect like terms

= (- 1.9t + 5.1t) + (- 3.6 + 1.2)

= 3.2t + (- 2.4)

= 3.2t - 2.4

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1 liter equals approximately 1.05 quarts. Which BEST approximates the number of liters in 3 quarts?
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I think the answer is A
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A shop tech earns a base pay of ​$19.68 per​ hour, plus​ "time-and-a-half" for overtime​ (time exceeding 40​ hours). If he works
lapo4ka [179]

9514 1404 393

Answer:

  $890.52

Step-by-step explanation:

The pay for each hour of overtime is ...

  1.5 × $19.68 = $29.52

The tech worked 40 hours at $19.68 per hour, plus an additional 3.5 hours at $29.52 per hour. His gross pay is ...

  40 × $19.68 +3.5 × 29.52

  = $787.20 +103.32 = $890.52

His gross pay for the week is $890.52.

8 0
3 years ago
What is the product in scientific notation?
sashaice [31]
(2.5 × 10^{-10} ) × (7 × 10^{-6} )

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Second, simplify. / Your problem should look like: 17.5 × 10^{-10} × 10^{-6}
Third, simplify exponent. / Your problem should look like: 17.5 × 10^{-15}

Answer: B

3 0
3 years ago
Read 2 more answers
Determine whether each of the following functions is a solution of laplace's equation uxx uyy = 0.
ratelena [41]

Both functions are the solution to the given Laplace solution.

Given Laplace's equation: u_{x x}+u_{y y}=0

  • We must determine whether a given function is the solution to a given Laplace equation.
  • If a function is a solution to a given Laplace's equation, it satisfies the solution.

(1) u=e^{-x} \cos y-e^{-y} \cos x

Differentiate with respect to x as follows:

u_x=-e^{-x} \cos y+e^{-y} \sin x\\u_{x x}=e^{-x} \cos y+e^{-y} \cos x

Differentiate with respect to y as follows:

u_{x x}=e^{-x} \cos y+e^{-y} \cos x\\u_{y y}=-e^{-x} \cos y-e^{-y} \cos x

Supplement the values in the given Laplace equation.

e^{-x} \cos y+e^{-y} \cos x-e^{-x} \cos y-e^{-y} \cos x=0

The given function in this case is the solution to the given Laplace equation.

(2) u=\sin x \cosh y+\cos x \sinh y

Differentiate with respect to x as follows:

u_x=\cos x \cosh y-\sin x \sinh y\\u_{x x}=-\sin x \cosh y-\cos x \sinh y

Differentiate with respect to y as follows:

u_y=\sin x \sinh y+\cos x \cosh y\\u_{y y}=\sin x \cosh y+\cos x \sinh y

Substitute the values to obtain:

-\sin x \cosh y-\cos x \sinh y+\sin x \cosh y+\cos x \sinh y=0
The given function in this case is the solution to the given Laplace equation.

Therefore, both functions are the solution to the given Laplace solution.

Know more about Laplace's equation here:

brainly.com/question/14040033

#SPJ4

The correct question is given below:
Determine whether each of the following functions is a solution of Laplace's equation uxx + uyy = 0. (Select all that apply.) u = e^(−x) cos(y) − e^(−y) cos(x) u = sin(x) cosh(y) + cos(x) sinh(y)

6 0
2 years ago
WILL GIVE BRAINLIEST
Reika [66]
50.1 is the answer hope this helps and please GIVE ME BRAINIEST and add me as a friend. 86.9-36.8=50.1
4 0
4 years ago
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