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emmainna [20.7K]
3 years ago
9

Identify the vertex for the graph of y= -2x^2-12x+1

Mathematics
1 answer:
Kazeer [188]3 years ago
5 0

Answer:

Step-by-step explanation:

y=-2(x^2+6x+9-9)+1

=-2(x+3)²+18+1

=-2(x+3)²+19

vertex is (-3,19)

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What is the equation of a line with a slope of ​3​ and a point (3, 1) on the line? Express the equation in the form of y=mx+b wh
Nastasia [14]
The answer is y=3x-8
4 0
4 years ago
A cylinder has a height of 14 millimeters and a radius of 16 millimeters. What is its volume?
pantera1 [17]

Answer:

11253.76

Step-by-step explanation:

To find the volume of a cylinder we must utilise the volume of cylinder formula which is

→ Volume of cylinder = π × r² × h

Where 'r' is the radius and 'h' is the height so let's start substituting in the values,

→ Volume of cylinder = π × r² × h

⇒ Substitute in 3.14 for π, 14 for 'h' and 16 for 'r'

→ Volume of cylinder = 3.14 × 16² × 14

⇒ Simplify

→ Volume of cylinder = 11253.76

So a cylinder has a height of 14 millimetres and a radius of 16 millimetres has a volume of cylinder 11253.76 inches³

4 0
3 years ago
If the perimeter of a rectangle is 78 inches and the length is 13 inches more than its​ width, find the area of the rectangle.
Feliz [49]
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8 0
3 years ago
54.31 + 19 + 32.843=???​
MrRissso [65]
Answer:
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Explanation
4 0
3 years ago
Find the values of x and y if (-x + 5, 1) = (-y, 2x - 5y).
MrMuchimi

Answer:

x = 8, y = 3

Step-by-step explanation:

Equating corresponding x and y coordinates , then

- y = - x + 5 ( multiply through by - 1 )

y = x - 5 → (1)

2x - 5y = 1 → (2)

Substitute y = x - 5 into (2)

2x - 5(x - 5) = 1 ← distribute and simplify left side

2x - 5x + 25 = 1

- 3x + 25 = 1 ( subtract 25 from both sides )

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x = 8

Substitute x = 8 into (1) for corresponding value of y

y = 8 - 5 = 3

7 0
3 years ago
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