3 years ago

The radius of a circular clock is 10,5 inches. Which measurement is closest to the circumference of the clock in inches?

Mathematics

1 answer:

nikitadnepr [17]3 years ago

4 0

The closest would be 66 inches

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In 3 and 4, Classify each triangle by its sides and then by its angles

romanna [79]

Answer:

3. Sides: Equilateral

Angles: Acute

4. Sides: Isosceles

Angles: Right

Step-by-step explanation:

3. Sides: Equilateral because in an equilateral triangle all sides are equal.

Angles: Acute because in an acute triangle all angles are acute.

4. Sides: Isosceles because in an isosceles triangle two legs are equal.

Angles: Right because in a right triangle, one angle is right.

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3 years ago

What is the standard form of the equation of a circle whose diameter is 20 units and whose center is (−1,7)?

VARVARA [1.3K]

Answer:

$(x + 1)^2 + (y - 7)^2 = 100$

Step-by-sep explanation:

Given:

Diameter of circle = 20 units

Center of circle = (-1, 7)

Standard form of the equation of a circle is expressed in the center-radius form as:

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

Where,

h = -1

k = 7

r = ½ of diameter = ½(20) = 10 units

Plug in the values into the equation

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

$(x - (-1))^2 + (y - 7)^2 = 10^2$

$(x + 1)^2 + (y - 7)^2 = 100$

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3 years ago

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jok3333 [9.3K]

Slope= -3/2
Y-intercept=33/2

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3 years ago

Read 2 more answers

Determine value of k

Ipatiy [6.2K]

72+k is equal to 180. So if you set up a equation if looks like:

72+k=180

Subtract 72 from both sides

K=108°

Your answer is 108°

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3 years ago

35 POINTS HELP ASAP!!!

Allisa [31]

Answer: 3

Step-by-step explanation:

$3:1$

$\frac{3}{1}=3$

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3 years ago