Answer:
W
Step-by-step explanation:
W is the vertex, you can see the letter above the angle
I'll do one, you can use it as a basis for your answer.
![7x ^{2} + 6 = 13](https://tex.z-dn.net/?f=7x%20%5E%7B2%7D%20%20%20%20%2B%206%20%3D%2013)
Subtract 6 from both sides to get X by itself.
![7x ^{2} = 7](https://tex.z-dn.net/?f=7x%20%5E%7B2%7D%20%20%3D%207)
Now we divide by 7 for both sides as well.
![x {}^{2} = 1](https://tex.z-dn.net/?f=x%20%7B%7D%5E%7B2%7D%20%20%3D%201)
Now we find the square root of 1 to figure out X.
![\sqrt{1} = 1](https://tex.z-dn.net/?f=%20%5Csqrt%7B1%7D%20%20%3D%201)
Therefore, X=1.
my first answer in about a month. hope this helped.
If the force between two charged objects when you triple the magnitude of both charges. The Force will become 9 times the initial force.
<h3>What is coulombs law?</h3>
According to coulombs law force between two charges is given by
![F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}](https://tex.z-dn.net/?f=F%20%3D%20%5Cdfrac%7B1%7D%7B4%5Cpi%20%5Cepsilon%20%7D%5Cdfrac%7BQq%7D%7Br%5E2%7D)
Here, R is the distance between both the charges Q and q.
Let the force on the charges be F1
The distance of separation = r
The magnitudes of the charges q1 and q2
K = Coulumb's constant
![F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}](https://tex.z-dn.net/?f=F%20%3D%20%5Cdfrac%7B1%7D%7B4%5Cpi%20%5Cepsilon%20%7D%5Cdfrac%7BQq%7D%7Br%5E2%7D)
Let the force on the charges be F
The distance of separation = r
The magnitudes of the charges 3q1 and 3q2
K = Coulumb's constant
So,
![F = \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}](https://tex.z-dn.net/?f=F%20%3D%20%5Cdfrac%7B1%7D%7B4%5Cpi%20%5Cepsilon%20%7D%5Cdfrac%7BQq%7D%7Br%5E2%7D)
![F = \dfrac{1}{4\pi \epsilon }\dfrac{3Q\times 3q}{r^2}\\\\F = \dfrac{1}{4\pi \epsilon }\dfrac{9Qq}{r^2}\\\\F =9 \dfrac{1}{4\pi \epsilon }\dfrac{Qq}{r^2}\\\\F = 9F_1](https://tex.z-dn.net/?f=F%20%3D%20%5Cdfrac%7B1%7D%7B4%5Cpi%20%5Cepsilon%20%7D%5Cdfrac%7B3Q%5Ctimes%203q%7D%7Br%5E2%7D%5C%5C%5C%5CF%20%3D%20%5Cdfrac%7B1%7D%7B4%5Cpi%20%5Cepsilon%20%7D%5Cdfrac%7B9Qq%7D%7Br%5E2%7D%5C%5C%5C%5CF%20%3D9%20%20%5Cdfrac%7B1%7D%7B4%5Cpi%20%5Cepsilon%20%7D%5Cdfrac%7BQq%7D%7Br%5E2%7D%5C%5C%5C%5CF%20%3D%209F_1)
Learn more about coulombs law;
brainly.com/question/13106909
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Answer:
90 cause 90 times 10 is 900 and 10% times 10 is 100%
Step-by-step explanation:
Answer:
Circumference = 157 ft
Area = 1962.5 ft^2
Step-by-step explanation:
d = 50
C = pi *d
C = 3.14 * 50
C =157 ft
This is the circumference
The area is found by
A = pi r^2
r =d/2
r= 50/2 =25
A =pi (25)^2
A = 3.14 *25^2
=3.14 *625
=1962.5 ft^2