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3 years ago

Can someone help me with this I really need help ASAP

Mathematics

1 answer:

umka21 [38]3 years ago

3 0

9514 1404 393

Answer:

16 + 200 = 216

Step-by-step explanation:

Sometimes we're stumped by a question because we don't believe it is asking something so blatantly simple and obvious.

16 = 2 rows of 8

200 = 2 blocks of 100 each

___

216 = the total number being represented

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X+8 = 17 - 8 -8 X 1 x=2<br>

aleksandr82 [10.1K]

Answer: The equation doesn't look right, it's either there's too many symbols or you need to switch some things around.

Step-by-step explanation:

3 0

3 years ago

Now given a rope hanging from the top of a pole. The end lying on the ground is 3 chi long. When tightly stretchedit is 8 chi fr

drek231 [11]

Answer:

Height of the pole = 9.17 chi.

Length of the rope = 12.17 chi.

Step-by-step explanation:

Given that the rope is hanging from the top of a pole having height x chi and the portion of the rope lying on the ground is 3 chi.

So, the length of the rope= x + 3 chi.

Let AB represents the pole in the figure, and one end of the rope is at point A.

When the rope is tightly stretched, let C be the other end of the rope as shown in the triangle.

The length of the rope = AC.

\Rightarrow AC=x+3 chi.

Distance from the bottom of the pole, point A, to the other end of the pole, point B, is 8 chi.

So, BC=8 chi.

As the triangle ABC is a right-angled triangle, so by using Pythagoras theorem,

$AC^2= AB^2+BC^2$

$\Rightarrow (x+3)^2=x^2+8^2$

$\Rightarrow x^2+6x+9=x^2+64$

$\Rightarrow 6x=64-9=55$

$\Rightarrow x=55/6=9.17$ chi.

Hence, the height of the pole, $AB=x=9.17$ chi,

and the length of the rope, $x+3=9.17+3=12.17$ chi.

8 0

3 years ago

How do you Use Trigonometry to find length

Ivan

Right Triangles and the Pythagorean Theorem

The Pythagorean Theorem, a2+b2=c2, a 2 + b 2 = c 2 , can be used to find the length of any side of a right triangle.

The side opposite the right angle is called the hypotenuse (side c in the figure).

7 0

2 years ago

Given: △ACD, m∠BCA = 60° CB ⊥ AD , m∠BDC = 45° AC = 10 cm. Find: BC and DC

neonofarm [45]

Answer:

See if this will help,

https://www.pmschools.org/site/handlers/filedownload.ashx?moduleinstanceid=701&dataid=3612&FileName=2015%20triangle%20proofs%20answers.pdf

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3 years ago

What is the ph of 0.1M HNO3

11111nata11111 [884]

Answer:

i hope this helps

Step-by-step explanation:

the pH of the solution is 5.74.

5 0

3 years ago