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Verdich [7]
2 years ago
14

Answer the questions for 2.) please! (the Science Test Scores question)

Mathematics
1 answer:
Burka [1]2 years ago
8 0
The median is 65
60 + 70 = 130 \\ 130 \div 2 = 65
the 2nd and third quartile is 65
50 + 60 + 70 + 80 = 260 \\ 260 \div 4 = 65
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Y = x² + 7x - 5 Can be written in the form y = ( x + a )² + b. Find the value of a and the value of b.
Mamont248 [21]

Answer:

a=\dfrac{7}{2} \\\\b=\dfrac{49}{4} \\

Step-by-step explanation:

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2 years ago
16. Giorgio bought a car for $21,000. The value of the car depreciates 5% each year. What will the
Lena [83]

Answer:

current value = 21000(1 - 0.05)^n

Step-by-step explanation:

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3 years ago
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Bezzdna [24]

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3.5 is the correct answer

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2 years ago
Earth revolves on its axis once every 24 hours. Which statement are true ? Check all that apply
zhuklara [117]

Answer:

The angular velocity of Earth is π/12 radians per hour.

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Step-by-step explanation:

A full circumference of a circle (as the Equator line on Earth) is 2π radians.

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So, we can see that in a day, the planet rotates 360 degrees... or 2π radians per day!

Now, if you want to find the angular velocity per HOUR... you divide that by 24... so  2π/24 = π/12 radians

So, we can also say it does π/12 radians per hour.

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2 years ago
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Usimov [2.4K]

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