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Leto [7]
2 years ago
7

Are these answers right? they make no sense and they’re marked only “ok”

Advanced Placement (AP)
1 answer:
dangina [55]2 years ago
7 0
Your teacher most likely means that the answer is reasonable but not the best. Technically they are correct.
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Which of the following statements best describes the relationship between the fourth and fifth sentences (“Of course . . . measu
blondinia [14]

Answer:

B. The fifth sentence elaborates on an assertion made in the preceding sentence.

Explanation:

Answer B

Correct. In the fourth sentence, the authors make a claim about the role of mathematics in the sciences, asserting that “the more [mathematics] can be applied usefully within a science, the more advanced the science.” The fifth sentence begins with the conjunction “For,” which is commonly used to introduce reasoning that explains or clarifies an earlier statement. And indeed, the fifth sentence does explain why the application of mathematics helps advance a science: because mathematics functions as both a precise language and a means of measurement.

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2 years ago
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Which course I should do after 12th class.
vlabodo [156]

Explanation:

I mean if you have an interest in Business commerce would be better.

As for me I had an interest in medicines/ medical. So I enrolled myself into SNU ( Seoul National University ) for medical.

Both the courses have a good career. But medical field is a respected one. Commerce is easier than medical studies. At the same time you can get jobs earlier.

hope this helped you

3 0
2 years ago
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Please help I been getting bots lol I need help asap <3 thanks
scoundrel [369]
Increase in credit score and not having late fees
5 0
3 years ago
To operate within the traffic system drivers must be able to_____
N76 [4]

To operate within the traffic system, a responsible driver must be able to cooperate with the traffic laws and apply the best driving practices, this way it will keep traffic moving safely.

In addition, one must have a combination of knowledge, skill and attitude such as being courteous to be able to drive safely and see dangerous situation to avoid major collisions.

7 0
3 years ago
2. Find the solution of each differential equation. (a) y/2y-8y = 0 (b) 25y/- 20y + 4y = 0 (c) y + 2y + 2y = 0 2. Find the solut
jek_recluse [69]

Each of these ODEs is linear and homogeneous with constant coefficients, so we only need to find the roots to their respective characteristic equations.

(a) The characteristic equation for

y'' - 2y' - 8y = 0

is

r^2 - 2r - 8 = (r - 4) (r + 2) = 0

which arises from the ansatz y = e^{rx}.

The characteristic roots are r=4 and r=-2. Then the general solution is

\boxed{y = C_1 e^{4x} + C_2 e^{-2x}}

where C_1,C_2 are arbitrary constants.

(b) The characteristic equation here is

25r^2 - 20r + 4 = (5r - 2)^2 = 0

with a root at r=\frac25 of multiplicity 2. Then the general solution is

\boxed{y = C_1 e^{2/5\,x} + C_2 x e^{2/5\,x}}

(c) The characteristic equation is

r^2 + 2r + 2 = (r + 1)^2 + 1 = 0

with roots at r = -1 \pm i, where i=\sqrt{-1}. Then the general solution is

y = C_1 e^{(-1+i)x} + C_2 e^{(-1-i)x}

Recall Euler's identity,

e^{ix} = \cos(x) + i \sin(x)

Then we can rewrite the solution as

y = C_1 e^{-x} (\cos(x) + i \sin(x)) + C_2 e^{-x} (\cos(x) - i \sin(x))

or even more simply as

\boxed{y = C_1 e^{-x} \cos(x) + C_2 e^{-x} \sin(x)}

3 0
1 year ago
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