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3 years ago

It is a set of points on given plane which is equidistant from a fixed point called the center

Mathematics

1 answer:

arsen [322]3 years ago

7 0

Answer: circle

Step-by-step explanation:

The set of points on a given plane which is equidistant from a fixed point that is called the center simply describes a circle.

We should note that the straight line that goes through the centre of a circle is referred to as the diameter while half of the diameter is the radius which is drawn from the center of the circle.

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3 years ago

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If random samples of size 525 were taken from a very large population whose population proportion is 0.3. The standard deviation

marissa [1.9K]

Answer: 0.02

Step-by-step explanation:

Given: Sample size : $n= 525$

The population proportion $P=0.3$

Then, $Q=1-P=1-0.3=0.7$

The formula to calculate the standard error is given by :-

$S.E.\sqrt{\dfrac{PQ}{n}}$

$\Rightarrow\ S.E.=\sqrt{\dfrac{0.3\times0.7}{525}}=0.02$

Hence, the standard deviation of the sample proportions (i.e., the standard error of the proportion) is <u>0.02</u>.

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3 years ago

Given the quadratic equation: f(x) = x2+4x-21

ryzh [129]

Answer:

x = - 7, x = 3

Step-by-step explanation:

To find the x- intercepts let f(x) = 0 , that is

x² + 4x - 21 = 0

Consider the factors of - 21 which sum to give the coefficient of the x- term (+ 4)

The factors are + 7 and - 3, since

7 × - 3 = - 21 and 7 - 3 = + 4, then

x² + 4x - 21 = 0

(x + 7)(x - 3) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x - 3 = 0 ⇒ x = 3

6 0

3 years ago

Plot the points (0, −5) and (2, 4) on the coordinate plane.

Leokris [45]

Answer:

Hope i helped

Step-by-step explanation:

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3 years ago

Which equation represents the line through (-8, 10) and (3, 7) in point-slope form?

alina1380 [7]

-3/11

Step-by-step explanation:

7-10/3-(-8)

7-10/3+8

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3 years ago

It is a set of points on given plane which is equidistant from a fixed point called the center​

It is a set of points on given plane which is equidistant from a fixed point called the center