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Korvikt [17]
3 years ago
10

What are the solutions to 2x^2-4x-30=0

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
5 0

Answer:

ill try  2x2-4x-30=0  

Two solutions were found :

x = 5

x = -3

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (2x2 -  4x) -  30  = 0

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I have to find the area of the shaded region in the figure above and answer using an exact and approximate answer
Tomtit [17]

Answer:

3925 units²

Step-by-step explanation:

area of larger circle = πr² = (3.14)(250²) = 196,250

area of smaller circle = πr² = (3.14)(200²) = 125,600

area of full donut = 196,250 - 125,600 = 70,650

20/360 = 1/18 of full donut

1/18(70,650) = 3925 units²

8 0
3 years ago
What’s the answer???
docker41 [41]

Answer: B, D, and E

<u>Step-by-step explanation:</u>

        f(x) = x² - 1

(0, 1):    1 = (0)² - 1   ⇒   1 = -1   FALSE

(1, 0):    0 = (1)² - 1   ⇒   0 = 0   TRUE

(3, 5):   5 = (3)² - 1   ⇒   5 = 8   FALSE

(5, 24): 24 = (5)² - 1   ⇒   24 = 24   TRUE

(-2, 3):   3 = (-2)² - 1   ⇒   3 = 3   TRUE

(-4, -17): -17 = (-4)² - 1   ⇒   -17 = 15   FALSE

5 0
4 years ago
Solve for the variable -x=-12
gayaneshka [121]

Answer:

x=12

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If anyone knows this please help me
alexgriva [62]

Answer:

oh hey I gotchu-

first of all you are gonna make that into two rectangle by slicing the top off if that makes sense so you now have a large rectangle (11×12) and a small one (3×8) now you use the area formula for rectangles base×height so the small one becomes (3×8)=24 and the large one is (11×12)=132. now to make them into one shape for the total area you add those two values 132+24=156 so your total area is 156m²

6 0
3 years ago
How can we get Equation 5=3 B from Equation A 5x=3x
stealth61 [152]

Answer:

Divide both sides by x

8 0
4 years ago
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