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marta [7]
3 years ago
13

In a population of 2000 students, 230 are left-handed. A random sample of size

Mathematics
1 answer:
kow [346]3 years ago
8 0
11.5% is the correct answer
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Determine the equation of the circle with radius 99 and center (-1,-8)(−1,−8).
kumpel [21]
<h2>Equations of Circles</h2>

Generally, you'd see the equation of a circle organized in the following format:

(x-h)^2+(y-k)^2=r^2

  • (h,k) is the center
  • r is the radius

To determine the equation given the center and the radius:

  1. Plug both pieces of information into the general equation
  2. Simplify

<h2>Solving the Question</h2>

We're given:

  • Radius: 99
  • Center: (-1,-8)

Plug the radius and center into the equation as r and (h,k):

(x-(-1))^2+(y-(-8))^2=99^2\\(x+1)^2+(y+8)^2=9801

<h2>Answer</h2>

(x+1)^2+(y+8)^2=9801

7 0
2 years ago
Question 2 (1 point)
nikdorinn [45]

Answer: 24 hours - no; because depending on where you are on Earth, you have a  different amount of sunlight.

Step-by-step explanation:

The day-night cycle is a complete day or a complete rotation of the earth around its axis. This takes 24 hours which is why 24 hours is the length of a full day.

People around the world however, do not get the same amount of sunlight or darkness and this is because of where they are on Earth. Due to the way the planet is tilted on its axis, some areas see sunlight more than other in a period and others see more darkness.

6 0
3 years ago
How many lives does a cat have, also there are 20cats in the room, how many cat lives are in the room
Andrei [34K]

Answer:

20

Step-by-step explanation:

Technically cats only have one life even though they can survive falls and such

8 0
3 years ago
Can anyone help me? The top is geometry and the bottom is algebra...
umka21 [38]

Answer:

<u>Geometry</u>

AC equals 13x + 7

<u>Algebra</u>

1. x = -16

2. x = 2

3. 2x^2 - 5x -7

4. (2x + 1)(x - 5)

Step-by-step explanation:

6 0
3 years ago
How to solve 2.25t+5=13.5t+14
anyanavicka [17]
2.25t+5= 13.5t+14
-2.25t      -2.25t
5= 11.25t+14
-14          -14
-9= 11.25t
-9/11.25=t
t= -0.8
3 0
4 years ago
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