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Paha777 [63]
3 years ago
7

This graph represents a quadratic function. What is the value of a in this function’s equation? A. 1 B. -2 C. 2 D. -1

Mathematics
1 answer:
DanielleElmas [232]3 years ago
8 0

Answer:

The answer is B

Step-by-step explanation:

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The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between (height) and (arm span) is shown
sergeinik [125]

Answer: Mike's arm span is 7.165 cm longer than the George's one.

Step-by-step explanation:

We have that the association between height and arm span is modeled by the equation

y = 4.5 + 0.977*x

where y is height and x is arm span.

Mike is 172 cm tall, so his arm span is:

172cm = 4.5 + 0.977*x

x = (172 - 4.5)/0.977 = 171.443 cm

and George is 165 cm tall, so his arm span is:

x = (165 - 4.5)/0.977 = 164.278 cm

Then the difference between their arm span is:

171.443cm - 164.278cm = 7.165 cm

So Mike's arm span is 7.165 cm longer than the George's one.

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3 years ago
What does the rational form of the ratio a:b look like
IrinaVladis [17]

Answer:

a/b

Step-by-step explanation:

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Bas_tet [7]

Answer:

(10, 40), (15, 60), (25, 100)

Step-by-step explanation:

(x, y) = (10, 40) means x = 10, y = 40

7 0
3 years ago
First one to get the correct answer AND answer first gets points and a bonus .
Paha777 [63]

Answer:

Its 1

Step-by-step explanation:

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What two numbers add to 18 and multiply<br> to 0.
Xelga [282]

Answer:

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Step-by-step explanation:

Anything multiplied by 0 is 0, so 0 must be one of the numbers

Anything added to 0 is itself, so 18 added to 0 is 18

Hope that makes sense.

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4 years ago
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