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timofeeve [1]
3 years ago
5

What is the solution to 5-2x^2=-15?

Mathematics
1 answer:
Phantasy [73]3 years ago
6 0
Isolate x.

-2x^{2}=-20
x^{2}=10
x=\sqrt{10}


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Find 3 solutions to the equation y = −4x −1
agasfer [191]

Answer:

(0,-1)

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(2,-9)

Step-by-step explanation:

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Let x=0

y = 0-1 = -1  (0,-1)

Let x = 1

y = -4(1) -1 = -4-1 =-5  (1,-5)

Let x = 2

y = -4(2) -1 = -8-1 =-9 (2,-9)

4 0
3 years ago
The fountain is made up of two semicircles and a quarter circle. Find the perimeter and the area of the fountain. Round the peri
Andrej [43]
FOUND THE COMPLETE QUESTION IN ANOTHER SOURCE.ATTACHED IMAGE.
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 We have to then:
 
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 P = 2 * pi * r
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 P = pi * d
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 r = radius
 d = diameter
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 P '= 2pi10
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 P '' = 20pi / 4 = 5pi
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 Pt = 15 * (3.141592)
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 round
 Pt = 47.1 ft

 Area:
 The total area will be:
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 Round:
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 Answer: 
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