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3 years ago

Will give crown thingy if right Can you find the area and circumference of a circle given the radius or diameter?

Mathematics

1 answer:

Artist 52 [7]3 years ago

7 0

Answer:

Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

Step-by-step explanation:

i) to find the area of a circle or circumference the radius , r, is required.

ii) if we are given the diameter, d. then we have to find the radius, r, by dividing the diameter by 2, that is $d = \frac{r}{2}$ .

iii) area of the circle is given by A = $\pi r^{2}$

iv) circumference of the circle is given by C = $2\pi r$

Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

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Which sequence of transformations will map figure K onto figure K′? Two congruent kites, figure K and figure K prime, are drawn

elixir [45]

Answer:

The sequence of transformations will map figure K onto figure K′

is the first sequence option (1)

======================================================

Step-by-step explanation:

See the attached figure

as shown in the figure the K' is the image of K by reflection over x-axis

But  We need to know which sequence of transformations will give the same result.

So, we will test the options by any point from K and its image from K'

i.e: we will test the options using the points (6,5) , (6,-5)

(6,5) ⇒ (6,-5)

option (1):

Reflection across x = 4, 180° rotation about the origin, and a translation of (x + 8, y)

(6,5) ⇒ (2,5) ⇒(-2,-5) ⇒ (6,-5)

option (2):

Reflection across x = 4, 180° rotation about the origin, and a translation of (x − 8, y)

(6,5) ⇒ (2,5) ⇒(-2,-5) ⇒ (-10,-5)

option (3):

Reflection across y = 4, 180° rotation about the origin, and a translation of (x + 8, y)

(6,5) ⇒ (6,3) ⇒ (-6,-3) ⇒ (2,-3)

option (4):

Reflection across y = 4, 180° rotation about the origin, and a translation of (x − 8, y)

(6,5) ⇒ (6,3) ⇒ (-6,-3) ⇒ (-14,-3)

As shown: The sequence of transformations will map figure K onto figure K′

is the first sequence option (1)

7 0

3 years ago

Read 2 more answers

Help!! Picture below

deff fn [24]

Answer:

Option A. $(a/2,0)$

Step-by-step explanation:

we know that

If triangle ABC is a right isosceles triangle

then

AB=AC

m<ABC=m<ACB=45°

therefore

The coordinate of point C is $(a,0)$

the x-coordinate of the midpoint M is equal to

$(0+a)/2=a/2$

The coordinates of point M are $(a/2,0)$

7 0

3 years ago

1/4 / 2 thank you and please help me on this

goldenfox [79]

Answer:

1/8

Step-by-step explanation:

Hope this helps. Pls give brainliest.

4 0

2 years ago

What polynomial has roots of −5, −4, and 1?

katrin [286]

Answer:

The last choice.

Step-by-step explanation:

The last term is - 20 and because we have a coefficient of 1 on the x^3, and in order to get this last term and the given roots the factors have to be

(x + 5)(x + 4)(x - 1) so it is the last option.

3 0

3 years ago

Anna paid to have 5 dozen roses delivered. Each dozen roses cost $19.99. Anna paid $14.50 for delivery. What is the total amount

Gala2k [10]

34.5 is the answer I think

7 0

3 years ago