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liq [111]
3 years ago
15

A math teacher is trying to analyze her test grades. She surveys the students to find out how many minutes they studied. She the

n makes a scatterplot of time studying and test grades. What is the domain?
Mathematics
2 answers:
Neko [114]3 years ago
7 0

Answer:

Step-by-step explanation:

The correct answer is the number of minutes the students studied. The student's grades is dependent on how long they studied. The domain is the independent variable or the amount of time.

Natali [406]3 years ago
5 0
<span>Well, they couldnt have studied negative time.. So Id say the domain is \(x \ge 0\) where \(x\) is the time they studied.</span>
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Mazyrski [523]

Answer:

x1 =2-5i*sqrt(2)

x2 =2+5i*sqrt(2)

Step-by-step explanation:

-x^2 +4x-54=0 (quadratic equation)

a=-1, b=4, c=-54

x1=(-b+sqrt(b^2-4ac))/2a

x1=(-4+sqrt(4^2 - 4*(-1)(-54))/2*(-1)

x1=(-4+sqrt(16-216))/(-2)

x1 =(-4+sqrt(-200))/(-2)

x1 =(-4+sqrt(200i^2))/(-2) i^2=-1

x1 =(-4+sqrt(100*2*i^2))/(-2)

x1 =(-4+10i*sqrt(2))/(-2)

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x2 =2+5i*sqrt(2)

7 0
3 years ago
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The value of sales at the shop decreases from 145,000 a year to 129,000 find the percentage decrease in the value of sales
iren [92.7K]

Answer:

11.0344828%

Step-by-step explanation:

145000 - 129000 = 16000.

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Therefore there was a 11.0344828% decrease

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JulsSmile [24]
Every person paid $1.20
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3 years ago
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Vedmedyk [2.9K]

Answer:

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Step-by-step explanation:

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Hope this helps!

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Alchen [17]

Answer:

AB = 3 and AC = 4

Step-by-step explanation:

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3 years ago
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