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alexandr1967 [171]
2 years ago
5

A tree 40 feet high casts a shadow 58 feet long. Find the measure of the angle, to the nearest degree, of

Mathematics
1 answer:
Aleonysh [2.5K]2 years ago
5 0

Answer:

39 degrees

Step-by-step explanation:

Right triangle

40 ft tree = opposite side

50 feet = adjacent side

tan (angle) = opp / adj = 40 /50

arctan (40/50) = 38.66 degrees ~ 39 degrees

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Answer:

1:80%

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Por que razón los números fraccionarios y decimales no tienen un sucesor y un antecesor​
stepan [7]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Point Coordinate
telo118 [61]

Step 1:

First, let's order the number from least to greatest.

A. -0.31

B. -0.33

C. -0.38

D. -0.29

We could see that A, B, and C's numbers are already from least to greatest, so all we have to do is to move -0.29 (D) up to the top, since -0.29 is the number with the lowest value.

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B. -0.33

A. -0.31

D. -0.29

Step 2:

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5 0
3 years ago
Of 560 marbles in a bag, 65% are red and the rest are blue. After 28 red marbles are replaced with blue ones, how many blue marb
jonny [76]

Answer:  The answer is 400  blue marbles.


Step-by-step explanation: Given that there are 560 marbles in a bag, out of which 65% are red and rest are blue.

So, number of red marbles is

n_r=65\%\times 560=\dfrac{65}{100}\times 560=364,

and number of blue marbles is

n_b=560-364=196.

Now, if 28 red marbles are replaced by blue marbles, the the new number of red and blue marbles will be

n_r^\prime=364-28=336~~~\textup{and}~~~n_b^\prime=196+28=224.

Now, to get 65% of the marbles blue, we need to add some more blue marbles to the bag. Let 'x' number of blue marbles are added to the bag, then

65\%\times (560+x)=224+x\\\\\Rightarrow \dfrac{65}{100}\times (560+x)=224+x\\\\\Rightarrow 13(560+x)=20(224+x)\\\\\Rightarrow 7280+13x=4480+20x\\\\\Rightarrow 7x=2800\\\\\Rightarrow x=400.

Thus, 400 blue marbles need to be added to the bag.


5 0
3 years ago
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Jet001 [13]

Answer:

32,27,42,47,52

Step-by-step explanation:

7 0
3 years ago
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