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3 years ago

Please help. Geometry!

Mathematics

1 answer:

raketka [301]3 years ago

5 0

Answer:

21.5

Step-by-step explanation:

→_→

It did not say if if it was a acute triangle or a obtuse triangle

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A small fountain holds 38 gallons of water in 4 equal-sized sections.

NemiM [27]

A 38/4
B 9 2/4
C 9 1/2

5 0

3 years ago

The angle of elevation of an unfinished tower from a point of 120m away from its base is 25 degrees. How much higher will the to

Sav [38]

Answer:

44.73 m

Step-by-step explanation:

Given that the angle of elevation of an unfinished tower from a point of 120m away from its base is 25 degrees.

Using trigonometry ratio, the height of the tower can be calculated by

Tan Ø = height / base

Tan 25 = height / 120

Make height the subject of formula

Height = 120 × tan 25

Height = 55.96 m

How much higher will the tower need to be raised so that its angle of elevation from the same point will be 40 degrees?

Using the same formula to calculate the new height.

Tan 40 = new height / base

Tan 40 = new height / 120

Make the new height the subject of the formula.

New height = 120 × tan 40

New height = 100.69 m

Increase in height = new height - height

Increase in height = 100.69 - 55.96

Increase in height = 44.73m

Therefore, the tower will need 44.73m to be raised so that its angle of elevation from the same point will be 40 degrees.

4 0

3 years ago

Water drains from a barrel at a constant rate. The graph and table show how the amount of water in the barrel changes with time.

lana66690 [7]

Answer:

Option C is correct.

Step-by-step explanation:

We have been given the graph

The graph is not of exponential function

Therefore, option A and B are discarded.

Now, We can see the graph is starting from 37

And the difference between Amount of water from the table is 19-22 that is -3

So, the graph is arithmetic

So, applying the formula $a_n=a+(n-1)d$ ; d is common difference here we have d= -3

$a(n)=37-3(n-1)$

Therefore, option C is correct.

3 0

3 years ago

Expand <br> (2x + 2)(x + 4

sasho [114]

Answer:

2x^2+10x+8

Step-by-step explanation:

(2x+2)(x+4)

=(2x+2)(x+4)

=(2x)(x)+(2x)(4)+(2)(x)+(2)(4)

=2x^2+8x+2x+8

=2x^2+10x+8

7 0

3 years ago

Read 2 more answers

What are the coordinates of point B on AC such that the rario of AB to BC is 2:3

pishuonlain [190]

Answer:

Step-by-step explanation:

im not too sure buy i have the exact questions

7 0

3 years ago