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4 years ago

Why is a circle not a polygon

Mathematics

2 answers:

Goryan [66]4 years ago

4 0

Because a polygon is a shape that has equal sides and no curves.

suter [353]4 years ago

3 0

Let's first go over the definition of a polygon.

A polygon a figure formed by coplanar segments. The segments are called sides.

A circle is not considered a polygon because it's formed by a curve rather than line segments.

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Pleasseee help me with this.it’s life or death

barxatty [35]

Answer:

(a) 4 miles

(b) 8.9 miles

Step-by-step explanation:

(a) Theorem 1: In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments. The length of the altitude is the geometric mean of these two segments.

Hence, the distance d between the park and the library is

$d^2=2\cdot 8\\ \\d^2=16\\ \\d=4\ miles$

(b) Theorem 2: In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments. The length of each leg of the right triangle is the geometric mean of the lengths of the hypotenuse and the segment of the hypotenuse that is adjacent to the leg.

Thus, the distance D between the park and the football field is

$D^2=8\cdot (2+8)\\ \\D^2=8\cdot 10\\ \\D^2=80\\ \\D=\sqrt{80}=4\sqrt{5}\approx 8.9\ miles$

4 0

3 years ago

PLEASE ANSWER FAST! WILL GIVE BRAINLIEST!

NemiM [27]

Answer:

Step-by-step explanation:

You need to find the area of each of the shapes by multiplying the length by the width. Then, you need to add them all together. I won't do it for you because it will make it harder to learn stuff in the future but I told you the formula!!

8 0

2 years ago

Ling decides to sell cupcakes at the country fair. Her ingredients cost her about 25 cents per cupcake. Renting a booth costs $3

koban [17]

To find how many cupcakes Ling must sell to break even, you will create an equation where the functions are equal.

0.25x + 30 = 1x; then solve the equation for x, the number of cupcakes.

0.25x + 30 = 1x

-0.25x -0.25x

30 30

x = 40

Ling will need to sell 40 cupcakes.

5 0

4 years ago

For the graph of the equation below, the ___ is the major axis.

Andreas93 [3]

$\bf \cfrac{(x-{{ h}})^2}{{{ a}}^2}+\cfrac{(y-{{ k}})^2}{{{ b}}^2}=1\qquad \qquad 
\cfrac{(x-{{ h}})^2}{{{ b}}^2}+\cfrac{(y-{{ k}})^2}{{{ a}}^2}=1$

for an ellipse, the major axis, is over the variable with the "a" component, or the greater denominator

5 0

3 years ago

Knowing the population standard deviation, a 95% confidence interval infers that the population mean ___________. is between 0 a

nevsk [136]

Answer:

within ±1.96 standard deviations of the sample mean

Step-by-step explanation:

A 95% confidence interval is found using the formula C = 1 - α, and some other stuff, but let's focus on that for now. Using the formula:

.95 = 1 - α

α = .05

If α = .05, that means a 2-sided confidence interval would be found using the sample mean and the Z-score Z(subscript α/2), or Z.₀₂₅ because α AKA .05 divided by 2 = .025. From there, you take this either to your calculator or a Z-table (or perhaps you have a chart that lists the common CI values), and see that for the area to be .025 beneath a standard normal curve, your Z value is ±1.96 ("plus or minus" because we're considering a 2-sided confidence interval).

3 0

3 years ago