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MrMuchimi
2 years ago
7

Una persona observa un pájaro que esta en la copa de un árbol de 2 m de altura y un gato que esta en el pie del mismo árbol a la

espera de atrapar el pájaro. y si la persona esta a 3 m del árbol.
a)¿ que medidas aproximadas tienen los ángulos de depresión y de elevación e esta situación?
b) ¿de que dependerá que los ángulos de elevación y de deprecio cambien en este estilo d análisis?
c)¿es posible que alguno de los ángulos(el de elevación o el de deprecio) sean mayores o iguales a 99º? explica tu respuesta

Mathematics
1 answer:
alex41 [277]2 years ago
7 0

Answer:

a)  About 40° and 5 °; b) the height of the person; c) none

Step-by-step explanation:

(a) Angles of depression and elevation

The angle of depression is about 40°.

The angle of elevation is about 5°.

(b) Dependence of angles

The angles of elevation and depression depend on the height of the person.

The taller the person, the smaller the angle of elevation and the larger the angle of depression.

(c) Limitations of angles

There is no chance that either angle could be greater than or equal to 99°.

Each is part of a right triangle.

If one angle is a right angle, each of the other two angles must be less than 90°.

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An adult meerkat weighed 0.776 kilograms . this is 7.47 hectograms more than the weight of a baby meerkat . how much dose a baby
Firlakuza [10]
Let x = weight of adult meerkat, y=weight of baby meerkat, Find y.
x=0.776 kg
y+7.47hectogram=x=0.776
Since 1 hectogram = 0.1 kg,
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7 0
2 years ago
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A square OABC with the length of a side 6 cm and circle k(O) with a radius 5 cm are given. Which of the lines OA , AB , BC , or
Pavel [41]

Answer:

AC and OA

Step-by-step explanation:

-A secant is a  line connecting two points on the circle.

-Given the square OABC of sides 6cm and a circle of r=5cm and  the center of the circle as O, and that the radius of the circle is less than the side of the square:

-The circle passes through OA and OC, but doesn't pass through AB and BC.

Hence, AC and OA are the circle's secants.

5 0
2 years ago
Terrence is folding paper cranes at a constant rate. Write an equation to describe the relationship between c, the number of cra
Vanyuwa [196]

Answer:

It is c = kt.

Step-by-step explanation:

This is direct variation . As the time increases the number of cranes increases.

The equation is c = kt  where k is the constant  of variation.  In this case it will be a positive value because c is increasing with time.

If they make 20 cranes in 10 minutes then we can find the value of k by plugging in these values;

20 = k * 10

g = 20/10

k = 2.

So they make 2 cranes per minute.

7 0
1 year ago
The table shows expressions to represent the number of students involved in different activities. The number of students involve
Maurinko [17]

Answer:

6n + 7 = 7n

Step-by-step explanation:

Number of students involved in sports = 5n + 7

Number of students involved in student council = n

Number of students involved in sports and student council = (5n + 7) + n = 5n + 7 + n = 6n + 7

Number of students involved in band = 3n - 2

Number of students involved in drama club = 2(2n + 1)

Number of students involved in band and drama club = (3n - 2) + 2(2n + 1) = 3n - 2 + 4n + 2 = 7n

Equation to model number of students involved in sports and student council which equal number of students involved in band and drama club:

6n + 7 = 7n

6 0
2 years ago
Periodically, Merrill Lynch customers are asked to evaluate Merrill Lynch financial consultants and services. Higher ratings on
Vlada [557]

Answer:

See the explanation

Step-by-step explanation:

(a)  

H0: Consultant with more experience has the higher population mean service rating.

H1: Consultant with more experience doesn't have the higher population mean service rating.

(b)  

t = 1.9923 (see the attached image)

(c)

The degrees of freedom for the test statistic,

df = 16

The P-value of the one tailed t- test with 16 degrees of freedom is,

P−value = tdist(X,df,tails)

P-value = tdist(1.9923,16,1)

P-value = 0.032

(d)​

Since, P-value 0.032 is less than the significance level 0.05, there is an enough evidence to reject the null hypothesis.

Hence, there is a sufficient evidence to conclude that Consultant with more experience doesn't have the higher population mean service rating.

Hope this helps!

8 0
2 years ago
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