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Gelneren [198K]

3 years ago

6

From a top of a building 20 m high if the angle of elevation top of a vertical pole is 30 degree.and the angle of depression of

foot from the same pole is 60 degree . find the height of the pole

1 answer:

Delvig [45]3 years ago

7 0

Answer:

The height of the pole is 26.64 metres.

Step-by-step explanation:

Please kindly see the attached for explanation

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VARVARA [1.3K]

Step-by-step explanation:

[ Refer to the attachment ]

6 0

3 years ago

Write an equation that could be used to find how many miles a hybrid suv can travel in the city on 20 gallons

vagabundo [1.1K]

Answer:

m=36×20

Step-by-step explanation:

A hybrid SUV uses 36 miles per gallon in the city.

The equation that could be used to find how many miles a hybrid SUV can travel in the city on 20 gallons of gas is m=36×20.

8 0

3 years ago

An equation of a trend line for the scatter plot below is y=42x+50. Predict how many more sales the store makes in December than

Mars2501 [29]

Answer:

42 more sales in December

Step-by-step explanation:

3 0

3 years ago

A ball is dropped from the top of a building that is 250 feet tall. The

Virty [35]

hi

-16t²+250 = 75

-16t² = 75 -250

-16t² = -175

t² = -175 /-16

t² = 175/16

Here there si two solutions : t = $\sqrt{175/16}$ and t = - $\sqrt{175/16}$

However, as time cannot rewind, we will keep only positive solution

So t = $\sqrt{175/16}$

in seconds it will be : 3.3 seconds

3 0

3 years ago

aivan3 [116]

Answer:

part A) The scale factor of the sides (small to large) is 1/2

part B) Te ratio of the areas (small to large) is 1/4

part C) see the explanation

Step-by-step explanation:

Part A) Determine the scale factor of the sides (small to large).

we know that

The dilation is a non rigid transformation that produce similar figures

If two figures are similar, then the ratio of its corresponding sides is proportional

so

Let

z ----> the scale factor

$\frac{CB}{C'B'}=\frac{CD}{C'D'}=\frac{BD}{B'D'}$

The scale factor is equal to

$z=\frac{CB}{C'B'}$

substitute

$z=\frac{4}{8}$

simplify

$z=\frac{1}{2}$

Part B) What is the ratio of the areas (small to large)?

<em>Area of the small triangle</em>

$A=\frac{1}{2}(2)(4)=4\ units^2$

<em>Area of the large triangle</em>

$A=\frac{1}{2}(4)(8)=16\ units^2$

ratio of the areas (small to large)

$ratio=\frac{4}{16}=\frac{1}{4}$

Part C) Write a generalization about the ratio of the sides and the ratio of the areas of similar figures

In similar figures the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In similar figures the ratio of its areas is equal to the scale factor squared

4 0

3 years ago