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krok68 [10]
3 years ago
6

PLZ HURRY IT'S URGENT!!

Mathematics
2 answers:
vovangra [49]3 years ago
8 0

Answer:

Step-by-step explanation:

Alina [70]3 years ago
6 0

Answer: C) 44

======================================

Work Shown:

P = 2*(L+W)

P = 2*(13+9) ... plug in given length and width

P = 2*22

P = 44

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100 POINTS + BRAINLIST
mojhsa [17]

Problem 1

Since point P is the tangent point, this means angle OPT is a right angle

angle OPT = 90 degrees

Let's use the Pythagorean theorem to find the missing side 'a'

a^2 + b^2 = c^2

a^2 + 7^2 = 12^2

a^2 + 49 = 144

a^2 = 144 - 49

a^2 = 95

a = sqrt(95)

a = 9.7467943

a = 9.7

----------------

Let's use the sine and arcsine rule to find angle y

sin(angle) = opposite/hypotenuse

sin(y) = 7/12

y = arcsin( 7/12 )

y = 35.6853347

y = 35.7

The value of y is approximate. Make sure your calculator is in degree mode. Arcsine is the same as inverse sine or \sin^{-1}

====================================================

Problem 2

Focus on triangle OHP. This may or may not be a right triangle. The goal is to test if it is or not.

We use the converse of the Pythagorean theorem to check.

Recall that the converse of the Pythagorean theorem says: If a^2+b^2 = c^2 is a true equation, then the triangle is a right triangle. The value of c is always the longest side. The order of a and b doesn't matter.

In this case we have

  • a = 7
  • b = 13
  • c = 16

Which leads to

a^2 + b^2 = c^2

7^2 + 13^2 = 16^2

49 + 169 = 256

218 = 256

We get a false equation at the end, since both sides aren't the same number, which means the original equation is false.

We don't get a^2 + b^2 = c^2 to be true, therefore this triangle is not a right triangle.

Consequently, this means angle OPH cannot possible be 90 degrees (if it was then we'd have a right triangle). Therefore, point P is not a tangent point.

You follow the same basic idea for triangle OQH and show that point Q is not a tangent point either. Or you could use a symmetry argument to note that triangle OPH is a mirror reflection of triangle OQH over the line segment OH. This implies that whatever properties triangle OPH has, then triangle OQH has them as well for the corresponding pieces.

7 0
3 years ago
Read 2 more answers
Help pls I need help lol it’s quite easy for rlly smart ppl
mr_godi [17]

Answer:

(2,1) (7,1) (7,5) (2,5)

Step-by-step explanation:

Just line up the dots on the x axis and y axis

Vertexes are the points or "corners" of the shape, and in your case, that square.

I hope this helped :D

8 0
3 years ago
Calculate the area of triangle .
AnnZ [28]

Answer:

20 units

Step-by-step explanation:

The formula for the area:

A = bh × 1/2

B = 8 units

H = 5 units

8 × 5 = 40

40 × 1/2 = 20

8 0
3 years ago
A man is 32 years older than his son. Ten years ago he was three times as old as his son. find the present age of each?​
nekit [7.7K]
The answer to this equation is 17
7 0
3 years ago
What is 576 divided into 4
vesna_86 [32]

Answer:

144

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
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