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3 years ago

14

A ladder is placed with its foot 5m from the bottom of a wall 12m high. The top of the ladder just

1 answer:

Stels [109]3 years ago

8 0

Answer:

13 m

Step-by-step explanation:

The ladder forms a right triangle with the wall that has legs of 5 and 12. We need to solve for the length of the ladder, which in this case, is the hypotenuse of the right triangle. You could use the Pythagorean Theorem but there's an easier way to do this. We can use the 5 - 12 - 13 Pythagorean triple so we know that the length of the ladder is 13 m.

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Answer:

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Step-by-step explanation:

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2 years ago

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Select the polynomial that is a perfect square trinomial. 36x2 − 4x 16 16x2 − 8x 36 25x2 9x 4 4x2 20x 25.

Naya [18.7K]

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

The given polynomial is

$a) 36x^2-4x+16$

What is the form of perfect square polynomial?

$(ax+b)^2$

we solve this method by using perfect square method

add and subtract 1/9

$36x^2-4x+16+\frac{1}{9}-\frac{1}{9}$

factor 36

$\frac{143}{9}+36(x^2-\frac{x}{9}+\frac{1}{324} )$

Now complete the square

$\frac{143}{9}+36(x^2-\frac{1}{18})^2$

Therefore this is not perfect square trinomial.

Similarly for

$b) 16x^2-8x+36$

Complete square is,

$16(x-\frac{1}{4})^2+35$

This polynomial is also not perfect square trinomial.

$c) 25x^2+9x+4\\$

complete square is,

$25(x+\frac{9}{50})^2+\frac{319}{100}$

This polynomial is not perfect square trinomial.

$d)4x^2+20x+25\\$

complete square is,

$(2x+5)^2$

This polynomial is perfect square trinomial.

Therefore,

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

To learn more about perfect square trinomial visit:

brainly.com/question/1538726

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1 year ago

Pls help asap not very good @ math

yanalaym [24]

Answer:

b. The function is linear and has y intercept (0, 20,000)

Step-by-step explanation:

The function is linear and has y intercept at (0, 20,000)

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2 years ago

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Jobisdone [24]

Answer:

(-1,-4)

Step-by-step explanation:

the X can't repeat bc if it does it won't be a function

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The quotient of two numbers is 4. their sum is 20. What are the two numbers?

kari74 [83]

9514 1404 393

Answer:

16 and 4

Step-by-step explanation:

If x is the smaller one, then the larger is 4x. Their sum is ...

x + 4x = 20

x = 20/5 = 4

The two numbers are 16 and 4.

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2 years ago