2 years ago

The diameter of a circle is 16 units What is the radius of the circle?

Mathematics

1 answer:

bonufazy [111]2 years ago

8 0

Answer:

The radius is 8. To find the radius you divide the diameter in half.

Comment and let me know if this is right.

Step-by-step explanation:

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The line of symmetry of the parabola whose equation is y = ax^2 -4x + 3 is

alex41 [277]

Answer:

B. -1

Step-by-step explanation:

If we have a parabola whose equation is:

$y=ax^{2} +bx+c$

The line of symmetry is calculated as:

$x=\frac{-b}{2a}$

Now, we have the equation $y=ax^{2}-4x+3$ and the line of symmetry is $x=-2$

Where:

$b=-4\\c=3$

So, we can replace $b$ by -4 and $x$ by -2 and solve for $a$ using the following equation as:

$x=\frac{-b}{2a}\\-2=\frac{-(-4)}{2a}\\-2(2)a=4\\-4a=4\\a=-1$

It means that the equation of the parabola is equal to:

$y=-1x^{2}-4x+3$

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2 years ago

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BARSIC [14]

M equals c over e is not equal to e=mc

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2 years ago

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What is less than 0.625

lidiya [134]

0.624 is less than 0.625

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2 years ago

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Kate wants to buy a shirt that regularly cost $30. It is on sale for 20% off. After the discount she has to pay a 6% sales tax.

enyata [817]

Answer:

25.44$

Step-by-step explanation:

20% of $30 = 6 $

Cost = 24$

Tax = 1.44$

Total cost = 25.44$

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You flip a coin 12 times. What is the probability of getting only one tails in all 12 tries?

tigry1 [53]

Answer: Aproxamatly 18.999999999999999

Step-by-step explanation:

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