Answer: For plato family
A fossil with 47% of its carbon-14 remaining is approximately __2998_ years old.
A fossil that is 7,000 years old will have approximately _17%__ of its carbon-14 remaining
Step-by-step explanation:
Just took the test
Answer:
7
Step-by-step explanation:
because 105/15=7
84/12=7
28/4=7
so 1x7=7
Answer:
He must sell 8 cards to reach the minimum goal.
Step-by-step explanation:
Giving the following information:
He wants to earn more than $50 at the fair.
He sells his cards for $2 and he has already earned $36.
<u>First, we need to calculate the money required to reach the minimum goal:</u>
51 - 36= $15
<u>Now, we write the inequality:</u>
2*x >15
x= number of cards sold.
x>15/2
x> 7.5
He must sell 8 cards to reach the minimum goal.
Therefore, the equation of circle is: ![(x+3)^{2}+(y+5)^{2} = 100](https://tex.z-dn.net/?f=%28x%2B3%29%5E%7B2%7D%2B%28y%2B5%29%5E%7B2%7D%20%3D%20100)
<h3><u>
What is a circle?</u></h3>
- All points in a plane that are at a specific distance from a specific point, the center, form a circle. In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
- The radius of a circle is the separation between any point on the circle and its center.
- The radius must typically be a positive integer. Except when otherwise specified, this article discusses circles in Euclidean geometry, namely the Euclidean plane.
- A circle, specifically, is a straightforward closed curve that separates the plane into its inner and exterior.
Here we know that
but we are not given the radius.
However, we can find the radius by using the distance formula.
, where
and ![y=y_{1} -y_{2}](https://tex.z-dn.net/?f=y%3Dy_%7B1%7D%20-y_%7B2%7D)
Putting the values, we get:
![\sqrt{8^{2} +6^{2} }](https://tex.z-dn.net/?f=%5Csqrt%7B8%5E%7B2%7D%20%2B6%5E%7B2%7D%20%7D)
The radius comes out to be:
![r=10](https://tex.z-dn.net/?f=r%3D10)
An equation of the circle with center
and radius r is
![(x-h)^{2} +(y-k)^{2} = r^{2}](https://tex.z-dn.net/?f=%28x-h%29%5E%7B2%7D%20%2B%28y-k%29%5E%7B2%7D%20%3D%20r%5E%7B2%7D)
Now, substituting the values, we get:
![(x--3)^{2} +(y-5)^{2} = 10^{2}](https://tex.z-dn.net/?f=%28x--3%29%5E%7B2%7D%20%2B%28y-5%29%5E%7B2%7D%20%3D%2010%5E%7B2%7D)
Therefore, the equation of circle is:
![(x+3)^{2}+(y+5)^{2} = 100](https://tex.z-dn.net/?f=%28x%2B3%29%5E%7B2%7D%2B%28y%2B5%29%5E%7B2%7D%20%3D%20100)
Know more about circles with the help of the given link:
brainly.com/question/10618691
#SPJ4