Complete the table to show the area of each circle.

Mathematics

2 answers:

lorasvet [3.4K]2 years ago

6 0

Answer:

Below in bold.

Step-by-step explanation:

Area of:

The large circle = π r^2 = π * 10^2 = 100π

The small circle = π * 5^2 = 25π.

Troyanec [42]2 years ago

3 0

Answer: look at my work its 10 pi cm ^2

Step-by-step explanation:

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It’s moving day and Lydia has packed her books into a large and small boxes. The large boxes hold 35 book and the small ones hol

Natali5045456 [20]

Answer:

4 large , 14 small

Step-by-step explanation:

35*x +20*(18-x)=420

35x +360-20x=420

35x-20x=420-360=60

15x= 60

x =4

4 large 14 small

5 0

4 years ago

What is the range of the function f(x) = 3x2 + 6x – 8?

timama [110]

Answer:

Range is {y | y ≥ –11}

Step-by-step explanation:

This is quadratic equation.

<em>A quadratic equation's range can be found if we find the vertex.</em>

For quadratic equations that have a positive number in front of $x^{2}$ , it is upward opening and thus <u>all the numbers greater than or equal to the minimum value of vertex is the range.</u>

The formula for vertex of a parabola is:

Vertex = $(-\frac{b}{2a}, f(-\frac{b}{2a})$

Where,

$a$ is the coefficient of $x^{2}$
$b$ is the coefficient of $x$

From our equation given, $a=3$ and $b=6$

Now, $x$ coordinate of vertex is $x=-\frac{b}{2a}\\x=-\frac{6}{(2)(3)}\\x=-\frac{6}{6}\\x=-1$

$y$ coordinate of the vertex IS THE MINIMUM VALUE that we want. We get this by plugging in the $x$ value [ $x=-1$ ] into the equation. So we have: