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LenKa [72]
2 years ago
5

If a quadratic function has the vertex (-1,3), what is the equation of its axis of symmetry

Mathematics
1 answer:
kaheart [24]2 years ago
8 0

Check the picture below.

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2. Write the equation of a circle that has a diameter of 12 units if its center is at (4,7).
ahrayia [7]

Answer:

The Answer is B

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

Here diameter = 12, thus radius = 12 ÷ 2 = 6 and (h, k) = (2.5, - 3.5), thus

(x - 2.5)² + (y - (- 3.5))² = 6², that is

(x - 2.5)² + (y + 3.5)² = 36 ← equation of circle

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3 years ago
The liter is the basic unit of weight in the metirc system?
Ivanshal [37]
False. The liter is the basic unit of volume in the metric system. The basic unit of weight is the kilogram.
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3 years ago
15.75 ÷ 0.25 using the standard algorithm for division.
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63 due to .25 being 1/4 so 15 times four is 60 and 75 divided by 25 is 3


3 0
3 years ago
A total of $6000 is invested: part at 5% and the remainder at 9%. How much is invested at each rate if the annual interest is $5
notsponge [240]
Account 1 = $5750 Interest 9% = $517.50
Account 2= $ 250  Interest 5% = $  12.50

$517.50+$12.50=$350
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3 years ago
What is the answer to 9×<br><img src="https://tex.z-dn.net/?f=9x%20%7B%7D%5E%7B2%7D%20%20%2B%207x%20-%202from8x%20-%2010" id="Te
goldenfox [79]

Answer:

81x^2+7x-16x-10

81x^2-9x-10

7 0
3 years ago
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