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3 years ago

Juan is going to make a small table with a circular top. He drew a circle with a diameter of 22 inches to

Mathematics

1 answer:

Elanso [62]3 years ago

3 0

Answer:

C. 380

Step-by-step explanation:

Area of the tabletop = area of a circle

Area of a circle = πr²

radius (r) = ½*diameter = ½*22 = 11 in

Take π as 3.14

Plug in the values into the formula

Area of tabletop = 3.14*11² = 379.94

Area of tabletop would be approximately 380 in² (to nearest whole number)

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If f(x)= |x^3-3| then f(-1) is equivalent to

emmasim [6.3K]

Hello from MrBillDoesMath!

Answer:

Discussion:

f(x) = abs (x^3 - 3) =>

f(-1) = abs ( (-1)^3 -3 ) => (-1)^3 = -1

f(-1) = abs( -1 -3 ) => -1 =3 = -4

f(-1) = abs(-4) =>

f(-1) = 4

Thank you,

MrB

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4 years ago

The straight line joining points A(p,3) and B(1,-1) has length 5, workout the value of p

Alborosie

Answer:

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2 years ago

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uysha [10]

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3 years ago

Three vertices of a parallelogram are shown in the figure below.

a_sh-v [17]

Given:

The three vertices of the parallelogram are (-3,9), (0,-3), (6,-6).

To find:

The fourth vertex of the parallelogram.

Solution:

Consider the three vertices of the parallelogram are A(-3,9), B(0,-3), C(6,-6).

Let D(a,b) be the fourth vertex.

Midpoint formula:

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

We know that the diagonals of a parallelogram bisect each other. So, the midpoints of both diagonals are same.

Midpoint of AC = Midpoint BD

$\left(\dfrac{-3+6}{2},\dfrac{9+(-6)}{2}\right)=\left(\dfrac{0+a}{2},\dfrac{-3+b}{2}\right)$

$\left(\dfrac{3}{2},\dfrac{3}{2}\right)=\left(\dfrac{a}{2},\dfrac{-3+b}{2}\right)$

On comparing both sides, we get

$\dfrac{3}{2}=\dfrac{a}{2}$

$3=a$

And,

$\dfrac{3}{2}=\dfrac{-3+b}{2}$

$3=-3+b$

$3+3=b$

$6=b$

Therefore, the fourth vertex of the parallelogram is (3,6).

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3 years ago

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morpeh [17]

Answer:

Step-by-step explanation:

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3 years ago