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irinina [24]
3 years ago
13

A tree broken at a height of 5 cm from the ground and it's top touches the ground at a distance of 12 m from base of the tree fi

nd the original height of the tree

Mathematics
2 answers:
Harrizon [31]3 years ago
6 0

Answer:

The original height of tree is 18 m.

Step-by-step explanation:

Consider the correct question is "A tree is broken at the height of 5m from the ground and its top touches the ground at a distance of 12m from the Base of the tree. Find the original height of the tree."

A tree is broken at the height of 5m from the ground.

Let the height of the tree is (x+5) m.

After broken, it will form a right angle triangle with hypotenuse x, base 12m and perpendicular 5 m.

Using Pythagoras theorem,

hypotenuse^2=base^2+perpendicular^2

x^2=12^2+5^2

x^2=144+25

x^2=169

Taking square root on both sides.

x=13

Height of tree = x+5=13+5=18\text{ m}

Hence, the height of tree is 18 m.

jekas [21]3 years ago
3 0

Answer:

18 cm.

Step-by-step explanation:

Please find the attachment.

Let ABC be the height of tree and tree is broken at point B such that top A touches the ground.

Now, we will use Pythagoras theorem to solve for length AB as AB is hypotenuse of right triangle.

AB^2=BC^2+AC^2

AB^2=5^2+12^2

AB^2=25+144

AB^2=169

Now, we will take positive square root of both sides as:

\sqrt{AB^2}=\sqrt{169}

AB=13

The total length of the tree would be AB+BC\Rightarrow 13+5 =18.

Therefore, the original height of the tree was 18 cm.

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[(7+3)x5-4](divided by) 2+3<br> SHOW ALL WORK WILL MARK BRAINLIEST
Nesterboy [21]

Answer:

26

Step-by-step explanation:

[(7+3)5-4]/2+3

-To solve this equation you have to use PEMDAS

P- Parentheses

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction-

- With MD and AS you work left to right of the equation since they are in the same spot. (PE[MD][AS])

Step 1) [(10)5-4]/2+3

- First you do "P," parentheses, so you add 7+3=10

Step 2) [50-4]/2+3

- Next you do "M," multiplication, and multiply 10x5=50

Step 3) [46]/2+3

- Then you do "S," subtraction, and subtract 50-4=46

(FYI: Steps 1-3 were still in the parentheses. We had to start with the parentheses in the parentheses, work PEMDAS, and now we are out of the parentheses and have to work PEMDAS on the rest of the problem.)

Step 4) 23+3

- Now we do "D," division, and divide 46/2=23

Step 5) 23+3=6

- Finally we do "A," addition, and add 23+3=26 so the answer is 26

(FYI: "/" means division)

4 0
3 years ago
I forget how to do this help I'll give brainliest ​
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50 since a triangle has to equal 180, trust!
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Step-by-step explanation:

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