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Readme [11.4K]
3 years ago
11

Find the vertex this parabola y = -x^2 - 2x + 6

Mathematics
2 answers:
miskamm [114]3 years ago
7 0
Y=-x^2-2x+6 
To find the vertex I'm going to use the axis of symmetry formula: 
x=-b/2a 
x = 2/-2 
x = -1 
To find the y-value I'm going to plug in the x value in the above equation 
y=-(-1)^2-2(-1)+6 
y = -1+2+6 
y = 7 
The vertex is : 
(-1,7) 

:D :D :D 
Charra [1.4K]3 years ago
4 0
Your answer will be (-1,7)
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Answer:

c. 0.1151

Step-by-step explanation:

d) the probability that, on average, fish are larger than 86 centimeters in length.The area under part of a normal probability curve is  directly proportional to probability and the value is calculated as

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x₁ = variate mean = 86cm

x = mean of 80cm

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applying the formula,

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z = 6/5 =1.2

Using a table of partial areas beneath the standardized normal curve (see Table of normal curve, a z-value of 1.2 corresponds to an area of 0.3849 between the mean value. but, because the standard curve has 0.5, then will minus 0.3849 from 0.5= 0.5 - 0.3849 = 0.1151

Thus the probability of a fish are larger than 86 centimeters in length is 0.1151

5 0
3 years ago
If F(x) = 9x, which of the following is the inverse of Fx)?
Arturiano [62]

Answer:

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Step-by-step explanation:

To find the inverse of a function, you want to switch x and y in the equation and solve for y.

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2 years ago
if a cylinder has a volume of 75 cubic inches, what would be the volume of a cone with the same base and height? Explain
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3 years ago
What is the probability that a family of 4 children will have all girls?
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Since as of now we're saying that the probability of having a girl is 1/2, we can say:
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3 years ago
Someone please help me. Thanks!
fiasKO [112]
The answer is c because you need to multiply both numbers inside the parentheses by the number on the outside
5 0
2 years ago
Read 2 more answers
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