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2 years ago

PLEASE HELPPPPPPP!!!!!!!!!!!!

Mathematics

2 answers:

Katarina [22]2 years ago

7 0

Answer:

9 in, or B

Step-by-step explanation:

We can easily apply the Pythagorean Theorem to this. You could either realize that this is a 3-4-5 Pythagorean triple or do the math by hand.

We start off by setting up the equation 12² + x² = 15². Simplifying, we get 144 + x² = 225, and then x² = 81 after subtracting 144 from both sides. Thus, the square root of x is 9, and so the answer is 9 inches.

AVprozaik [17]2 years ago

5 0

Answer: B

Step-by-step explanation: You have to make sure the two small sides add up to be greater than the biggest side( in this case 15in)

12+9=21, 21>15 therefore 9 would work!

I eliminated C and D using only visual clues

why 27 is a no-go: if we did it the other way around where 27 is the biggest number, it would be 12+15=27, 27=27 *therefore since 27 is equal to 27 the three sides would not make a triangle*

why 19 is a no-go: if we did this the other way around where 19 is the biggest number, it would be 12+15=27, 27>19. *visual part* Although this seems like it would also work, does <AX really look like it's bigger than <WX or <AW XD

You might be interested in

Can u explain how u got the answer

Tems11 [23]

Answer:

10 degrees Celsius

Step-by-step explanation:

So, the question is asking for the difference between -8 and 2.

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

Explanation 1:

2 - (-8) = ?

2 + 8 = ?

10 = ?

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

Explanation 2:

|2| - 0 = 2

|-8| - 0 = 8

2 + 8 = 10

6 0

3 years ago

Find the quotient of -85^2-27n+76 / -17n-19

bagirrra123 [75]

Answer:
5n-4

Explanation:
The given expression is:
$\frac{-85n^2-27n+76}{-17n-19}$

1- Take the negative as a common factor from both the numerator and the denominator. This will give us:
$\frac{-(85n^2+27n-76)}{-(17n+19)}$

2- Cancel out the negative sign (common factor) from the numerator and denominator. This will give us:
$\frac{(85n^2+27n-76)}{(17n+19)}$

3- Factor the numerator. This wil give:
$\frac{(5n-4)(17n+19)}{(17n+19)}$

4- Finally, cancel out the (17n+19) which common in both numerator and denominator. This will give us the final expression:
5n-4

Hope this helps :)

6 0

3 years ago

Urgent!!!! not worried about a but i need b and #4

Oksi-84 [34.3K]

b) The surface area is 564.5. Picture below.

4. Three possibilities.

Formula for volume of a cylinder: πr^2h

Formula for volume of sphere: 4/3πr^3

If the radius of the sphere is 1 inch than the volume is: 4.18879 or 4.19 rounded.

I used substitution on this website https://www.omnicalculator.com/math/volume

Just plug in the 4.18879 at the cylinder volume and put in a random number in the radius or height whichever you want then it'll give you the one you left blank. You'll find three possibilities for the radius and height of 4.18879 volume.