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serious [3.7K]
3 years ago
15

Consider the two functions. F(x)=x^2-8x+7

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0
(X-7)(x-1)

Minimal x values=7,1
Not the same x value
7 is the greater minimal value
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2+2=?<br><br>help I don't know​
ankoles [38]

Answer:

4

Step-by-step explanation:

you and your friend got 2 slices of pizza each, how many do you have in total.

it would be four

6 0
3 years ago
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
1. A newspaper headline claims: "Apple spends far less on Research &amp; Development
aleksklad [387]

Answer:

Step-by-step explanation:

a)

The mistaken assumption is that Apple spends "far less" on Research and Development than any of its rivals.

b)

The assumption is incorrect because it took cognizance of the percentage used, and not the actual money spent. In truth, Apple generates far more income than the other two rivals. With Apple generating over $100bn in the said time span, and Google generating $37bn. At the end of the day, Apple spends $2.1bn on Research and Development, while Google spends $5.3bn on the same. This is quite close than the quoted distance of 14% - 2%

c)

Yes, I think so. But only when the 3 companies generate almost the same revenue.

5 0
3 years ago
How many books can be read in twenty-four days if sixteen books can be read
Sphinxa [80]

Answer:

for step of kepp of yours alive

5 0
3 years ago
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Pick the geometric term that matches the real-world object: a deck of cards.
malfutka [58]

Answer: Rectangular Prism

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

Explanation:

A rectangle is a four sided object that has all four angles at 90 degrees (aka right angles). Imagine that the cards are designed as such they do not have their corners rounded off, but each corner is a 90 degree angle. Stacking 52 congruent rectangles leads to a 3D solid known as a rectangular prism. The base is a rectangle that is congruent to any of the 52 cards. This stack must be aligned and not allowed to have any of the cards offset (ie forming a sort of "leaning tower"). You can think of a "rectangular prism" as a "box" which is probably a more common term for it; however, "rectangular prism" is probably what your teacher will want since it likely involves geometric terms you've learned in your lessons.

6 0
3 years ago
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