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ira [324]
3 years ago
5

A restaurant menu says that 3 tacos cost $4.50

Mathematics
2 answers:
andriy [413]3 years ago
4 0

The cost of 5 tacos is B). $7.50.

The second question answer is B.) 196/7

Dominik [7]3 years ago
3 0
The expression would be A for the gallons of gas per mile
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Evaluate each of the integrals (here δ(t) is the dirac delta function) (1) ∫∞−∞e5tδ(t−2)dt= (2) ∫∞−∞cos(2t)δ(t−5)dt= (3) ∫∞0e−st
Viktor [21]
\delta(x) has the property that for any continuous f with support in \mathbb R,

\displaystyle\int_{-\infty}^\infty f(x)\delta(x-c)\,\mathrm dx=f(c)

where c\in\mathbb R. So we have

\displaystyle\int_{-\infty}^\infty e^{5t}\delta(t-2)\,\mathrm dt=e^{10}

\displaystyle\int_{-\infty}^\infty\cos2t\,\delta(t-5)\,\mathrm dt=\cos10

The remaining two integrals are identical to the Laplace transforms of \cos3t\,\delta(t-2) and t^3\sin t\,\delta(t-3). For these, we have the property that

\mathcal L_s\{f(t)\delta(t-c)\}=f(c)e^{-sc}

so we get

\displaystyle\int_0^\infty e^{-st}\cos3t\,\delta(t-2)\,\mathrm dt=\mathcal L_s\{\cos3t\,\delta(t-2)\}=\cos6\,e^{-2s}

\displaystyle\int_0^\infty e^{-st}t^3\sin t\,\delta(t-3)\,\mathrm dt=\mathcal L_s\{t^3\sin t\,\delta(t-3)\}=27\sin3\,e^{-3s}
8 0
3 years ago
A boy has only dimes and quarters in his piggy bank. If he has 90 coins worth 12 dollars and 60 cents altogether, how many quart
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8 0
3 years ago
The following is a list of 5 measurements. 16,13,5,20,14 Suppose that these 5 measurements are respectively labeled
Mrac [35]
<h3>Answer: 1046</h3>

=====================================================

Explanation:

The fancy or strange looking E symbol is the greek uppercase letter sigma, to mean sum. So they want you to add the terms in the form x^2. The x values are from the list given to us.

x = 16 leads to x^2 = 256

x = 13 leads to x^2 = 169

etc etc

After squaring all the x values, we have this new list {256, 169, 25, 400, 196}

Lastly, you add up all the squared values to get the final answer of 256+169+25+400+196 = 1046

6 0
3 years ago
Find the missing value 3/8 equals y over 24 ​
oee [108]

Answer:

Step-by-step explanation:

7 0
3 years ago
What is the value of r?
Harrizon [31]
The answer is (B) -5. 
4 0
4 years ago
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