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Ede4ka [16]
3 years ago
13

Kathryn is thinking of four numbers from 1 through 9 with a sum of 18. Each number is used only once

Mathematics
1 answer:
maksim [4K]3 years ago
3 0
The numbers would be 1, 2, 7, and 8.
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Jeremy and Arnold are working on a project for math class in which they are to identify the quadratic equation that represents a
denis23 [38]

Answer:

The parabola generated by the expression :

y=x^2-2x+3

is the one that better represents a rain gauge above the ground.

Step-by-step explanation:

The function:

a) y=x^2+11x+24

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: below

So, the parabola doesn't depict a rain gauge off the ground

b) y=-x^2-6x-8

Direction of parabola: branches pointing down

Location of vertex relative to x-axis: above

So, the parabola doesn't depict a rain gauge off the ground

c) y=x^2-2x+3  

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: two units above

So, the parabola depicts a rain gauge off the ground

d) y=x^2+4x+4

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: right on the x-axis

So, the parabola doesn't depict a rain gauge off the ground (this is sitting on the ground)

e) y=3x^2+21x+30

Direction of parabola: branches pointing up

Location of vertex relative to x-axis:  below

So, the parabola doesn't depict a rain gauge off the ground

5 0
3 years ago
A perfect is to be chosen from a class of 12 girls and 8 boys. What is the probability that the prefect is a girl?​
maxonik [38]

Answer: 12/20

Step-by-step explanation:

8 0
3 years ago
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What is 52 divided by 8 with a remainder
lesya692 [45]
Fiftty two dived by eight is six point five not for sure .
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3 years ago
What is the mode of the following numbers?<br> 10, 6, 4, 4, 6, 4,1
Ahat [919]

Answer:

10 repeats 1 time

6 repeats 2 times

4 repeats 3 times

1 repeats 1 time

so 4 is the mod

hope this helps

have a good day :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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