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Simora [160]
3 years ago
8

Help needed before 12:00. Tonight .!! Please please

Advanced Placement (AP)
1 answer:
morpeh [17]3 years ago
8 0
The skis a kOs s snjsjsjusbdmsksu JSU’s Jen d
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a couple went for a picnic with 5 sons and each son has 3 sisters and each sister has 1 baby how many in total​
Vanyuwa [196]

Answer:

total is 11 so 2 parents and 5 sons and 3 sisters and 1 baby

5 0
3 years ago
The motion of a planet’s repeating course around the sun is also called the planet’s _____.
AysviL [449]
This would be called the orbit of the planet! :)
5 0
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Describe one reason why nitrogen is crucial for sustaining life on Earth. Answer in at least 1 complete sentence.
AVprozaik [17]
Nitrogen is very crucial for life because it is one of the important ingredient that is needed for plants to grow. Human and animals who eat plants materials obtain nitrogen from the plant. Nitrogen is needed in the humans and animals bodies for formation of proteins and nucleic acid which are very essential for life. When animals and humans die the nitrogen in their bodies return to the earth again and is used by plants.
3 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
12. What factors and conditions influence the different kinds of learning? (essay)
My name is Ann [436]

Answer:

Factors that affect individual learning include motivation, how people learn, intellectual ability, attention spans, and prior knowledge.

Explanation:

If someone isn't motivated to learn they won't. Intellectual ability can affect how well they retain information. Attention span limits the amount people can learn. Prior knowledge means that they have already learned the concept somewhat.

7 0
3 years ago
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