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svetoff [14.1K]

3 years ago

12

Calcular la altura de un árbol, sabiendo que desde un punto del terreno se observa su copa bajo un ángulo de 30° y si nos acerca

mos 10 metros, bajo un ángulo de 60°.

1 answer:

irina [24]3 years ago

8 0

Hi hi hello hi bye bye hello hi hello miss you hi bye hello miss sorry to disturb you but you can call you when you wake Ayy thanks for

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Peter selects a sock from his drawer. The sock is black. There are 4 white socks, 7 blue socks, and 12 black socks left in the d

max2010maxim [7]

Answer:

5/12

7/12

125/36 = 3,47%

50/11 = 4,54%

Step-by-step explanation:

Probability a black sock is selected when a person chooses 1 sock = 5/12

Probability a white or brown sock is selected when a person chooses 1 sock =

7/12

Probability a person chooses 3 socks and selects a white first, a black second, and a brown last if the socks are replace = (4/12 * 5/12 * 3/12)*100 =125/36 = 3,47%

Pobability a person chooses 3 socks and selects a white first, a black second, and a brown last if the socks are NOT replace = (4/12 * 5/11 * 3/ 10)*100 = 50/11 = 4,54%

3 0

3 years ago

Helpppp<br> plssss <br> brainliest if you anwser fast

Rasek [7]

Answer:

A=½b×h

½×6×p=9

3p=9

p=3mm

8 0

3 years ago

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Aloiza [94]

The answer to the math question

5 0

3 years ago

(-x²+9) + (-3x²-11x+4)

Maslowich

Answer:

=-4x^2-11x+13

Step-by-step explanation:

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3 years ago

Consider the set of points defined by z = 5 cos(theta) + 3i sin(theta).

vitfil [10]

Answer:

This is an ellipse.

Step-by-step explanation:

$z=5cos(\theta)+3isin(\theta)$

Applying the angle values in intervals of right angles (90°), the resulting set of values for z are:

$\theta = 0,90,180,270,360$

$z=5,3i,-5,-3i,5$ (again)

If you look at the plot, you will observe how these values represent points in the xy plain. All of them belong to either the x or the y axis.

The resulting figure for the whole set of values of $\theta$ is in fact an ellipse.

4 0

3 years ago