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dimaraw [331]
2 years ago
13

Please help me I will give you extra points and whoever the first one to answer I mark you with the brain thing. 10

Mathematics
1 answer:
Mrrafil [7]2 years ago
8 0

Answer: A

Step-by-step explanation:  

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Coach Jeffries had forty-six students sign up for after-school soccer. Then some students decided to join after-school basketbal
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7 0
3 years ago
A certain right triangle has area 30 in. squared . one leg of the triangle measures 1 in. less than the hypotenuse. let x repres
Brut [27]
A) The length of the longer leg is x-1

b) Based on the area, the other leg is 2*30/(x -1). Based on the Pythagorean theorem, the other leg is √(x^2 -(x -1)^2).

c) Equating the two expressions for the shorter leg, we have
.. 60/(x -1) = √(2x -1)
.. 3600/(x -1)^2 = (2x -1)
.. (2x -1)(x^2 -2x +1) = 3600
.. 2x^3 -5x^2 +4x -3601 = 0

d) There is one positive real root, at x=13. A graphical solution works well.

The three sides of the triangle are 5 in, 12 in, 13 in.


_____
5-12-13 is a well-known Pythagorean triple. It is the next smallest one after 3-4-5.

6 0
3 years ago
Difference of Squares gives which complex factors for the expression x2 +3?
Andreas93 [3]

Step-by-step explanation:

Shortest way to solve this question is to find the factors of the given expression.

The given expression is (x² + 13).

Now we have to factorize it.

(x² + 13) = x² + (√13)²

            = x² + [-(i)²√(13)²]  [Since i = √(-1)]

            = x² - (i√13)²

            = (x - i√3)(x + i√3) [Since (a² - b²) = (a + b)(a - b)]-by-

5 0
3 years ago
The width of a rectangle is 8 inches less than the length, x, of the rectangle. The sum of the length and width is more than 60
spin [16.1K]

Answer:

x>34

Step-by-step explanation:

w = x-8

w+x>60

x-8+x>60 (substitute x-8 for w)

2x-8>60

2x>68 (add 8 to both sides)

x>34 (divide both sides by 2)

please mark as brainliest :)

5 0
2 years ago
At a pet store, there are 30 aquariums.
irakobra [83]

Answer:

f = (20 × 15) + (10 × 6)

Explanation:

You are just find how many fish are salt water and how many freshwater and adding them together. The total number of aquariums is irrelevant in this case.

8 0
3 years ago
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