Select all the correct answers.

Mathematics

2 answers:

Elena-2011 [213]3 years ago

7 0

Answer: a= 5,b = 6,c = 8 and a=6,b = 8,c = 10

Step-by-step explanation: I found the correct answer on my test so hopefully this help you! :)

Phantasy [73]3 years ago

3 0

Answer:

a = 6, b = 8, and c = 10.

Step-by-step explanation:

You can easily use the Pythagorean Theorem to solve all of these.

a = 4; b = 6; c = 8... 4^2 + 6^2 = 16 + 36 = 52. 8^2 = 64. 52 is not equal to 64, so the first choice is not a right triangle.

a = 6; b = 8; c = 10... Well this is a multiple of the 3-4-5 Pythagorean triple, so this is a right triangle.

a = 5; b = 6; c = 761... 5^2 + 6^2 = 25 + 36 = 61. 761^2 = 579121, which is not equal to 61, so the third choice is not a right triangle.

a = 6; b = 9; c = 12... 6^2 + 9^2 = 36 + 81 = 117. 12^2 = 144, which is not equal to 117, so the fourth choice is not a right triangle.

The only case where there is a right triangle is the second choice, where a = 6, b = 8, and c = 10.

Hope this helps!

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An object is dropped from 39 feet below the tip of the pinnacle atop a 715-ft tall building. The height of the object after sec

Anna007 [38]

Answer:

6.5 seconds

Step-by-step explanation:

Ok so the equation you gave is -16T^2 + 676 in the comments which is what I'll be using for this problem. The problem is really just asking you to find the zeroes of the equation excluding any negative solutions since that doesn't really represent anything in this context since T is time.

So the first step is to set the equation equal to 0

$0 = -16t^2 + 676$ .

Subtract 676 from both equations.

$-676 = -16t^2$

Divide both sides by -16

$42.25 = t^2$

Take the square root of both sides

$\pm6.5 = t$

Ignore the negative and take only the positive solution, since in this context it doesn't make much sense. So after 6.5 seconds the height is 0, meaning it hits the ground after 6.5 seconds.

8 0

1 year ago

Which graph represents the function f(x)=-|x|-2 ?

Elden [556K]

Answer:

The graph of given function is shown below.

Step-by-step explanation:

The absolute parent function is g(x)=|x|. The graph of parent function is a V-shape d and vertex of the function is origin.

The given function is

$f(x)=-|x|-2$ .... (1)