What is the reason for the fourth and eighth steps in the proof?

If the circumference of the circle is 37.68 units, what is the area? (Use 3.14 for pi .)

solniwko [45]

Answer: 113.04

Step-by-step explanation: The equation for the area of a circle is pi r squared so you have to find the radius first. To find the radius, find the diameter first. A way to do this which was easiest for me was dividing 37.68 by pi (3.14), which is 12. Divide the diameter by 2 to find the radius, 6.

Now use the equation from the beginning, pi r squared. So plug in pi as 3.14, then the radius as 6. It is important to always square the radius first, which would be 36. Now multiply 36 by 3.14, and there should be your answer.

7 0

3 years ago

A number sentence is shown below:

d1i1m1o1n [39]

Number sentence is simply a sentence, that uses numbers and arithmetic signs.

The context that can be created from the sentence is: How many bits are there, in $32\frac 14$ bytes
The verbal meaning of $32\frac 14 \div \frac 18 = 258$ is: When $32\frac 14$ is divided by $\frac 18$ , the result is $258$

Given

$32\frac 14 \div \frac 18 = 258$

(a) Context or story

A context is as follows:

There are 8 bits in a byte; How many bits are there, in $32\frac 14$ bytes

(b) As a multiplication

$32\frac 14 \div \frac 18 = 258$

Change the division to multiplication as follows:

$32\frac 14 \times \frac 81 = 258$

(c) Verbal explanation how the numbers are related

When $32\frac 14$ is divided by $\frac 18$ , the result is $258$

Read more about number sentence at:

brainly.com/question/17322770

4 0

2 years ago

4+35x+52X Find x and the value

iren2701 [21]

Answer: 4+87x

Step-by-step explanation:

4+35+52

Combine like terms

4+35x+52x

4+87x

rearrange terms

=4+87x

4 0

2 years ago

Read 2 more answers

Write the equation of a parabola whose focus is at (-7, 3) and whose directrix is the line x = -3.

Sav [38]

Check the picture below.

now, let's keep in mind that, the vertex is half-way between the focus point and the directrix, it's a "p" distance from each other.

since this horizontal parabola is opening to the left-hand-side, "p" is negative, notice in the picture, "p" is 2 units, and since it's negative, p = -2.

its vertex is half-way between those two guys, so that puts the vertex at (-5, 3)

$\bf \textit{parabola vertex form with focus point distance} \\\\ \begin{array}{llll} 4p(x- h)=(y- k)^2 \\\\ 4p(y- k)=(x- h)^2 \end{array} \qquad \begin{array}{llll} vertex\ ( h, k)\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix} \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=-5\\ k=7\\ p=-2 \end{cases}\implies 4(-2)[x-(-5)]=[y-7]^2 \\\\\\ -8(x+5)=(y-7)^2\implies x+5=\cfrac{(y-7)^2}{-8}\implies \boxed{x=-\cfrac{1}{8}(y-7)^2-5}$

7 0

3 years ago

what is the value of the largest 2 digit whole number whose digits have a product of 6?---please explain!!

loris [4]

~Hello There!~

Product means they multiply to make 6
Think of numbers that multiply to make six:
1 x 6
6 x 1
3 x 2
2 x 3
The largest out of those is clearly 6 x 1 which makes 61

Hope This Helps You!
Good Luck :)
Have A Great Day ^_^

- Hannah ❤

3 0

3 years ago

Read 2 more answers