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2 years ago

What is the circumference of a circle with a diameter of 7 inches

Mathematics

1 answer:

Mrrafil [7]2 years ago

6 0

It’s 21.99

Use c=2pi*radius
Diameter divided by 2 = radius

You might be interested in

Given:

olga55 [171]

Answer:

Step-by-step explanation:

y = 1/3x + 6

y = 1/4x + 3

this is just a matter of substitution...subbing in one y for the other

y = 1/3x + 6.....so sub in 1/3x + 6 in for y, back into the second equation or u can work it the other way and sub in 1/4x + 3 in for y, back into the first equation....either way will work

1/3x + 6 = 1/4x + 3

1/3x - 1/4x = 3 - 6

4/12x - 3/12x = -3

1/12x = -3

x = -3 * 12

x = - 36

now sub that back into either of ur original equations to find y

y = 1/3x + 6

y = 1/3(-36) + 6

y = - 12 + 6

y = - 6

solution is : x = -36 and y = -6 or (-36,-6)

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Chuge%5Cfbox%5Cgreen%7BQUESTION%7D%20" id="TexFormula1" title=" \huge\fbox\green{QUESTION

Anni [7]

$\huge \fbox \orange{♧Answer♧}$

$\mathcal\blue{METHOD\:1}$

$\mathsf \purple{ - ( \frac{y}{x} )}$

$\mathsf \purple{ - ( \frac{ - 4}{5})}$

$\mathsf \purple{( \frac{4}{5} )}$

$\mathcal\blue{METHOD\:2}$

$\mathsf\purple{m\:=\:(Y2\:-\:Y1)\:÷\:(X2\:-X1)}$

$\mathsf\purple{m\:=\:(-4\:-0)\:÷\:(0\:-\:5)}$

$\mathsf\purple{( \frac{4}{5})}$

$\mathcal\blue{METHOD\:3}$

$\mathsf\purple{m\:=\:rise\:÷\:run}$

$\mathsf\purple{m\:=\:( \frac{4}{5})}$

$\mathbb\pink{NOTE:}$

The difference between the y-coordinates of the two points is called the rise.
The difference between the x-coordinates of the same two points is called the run.
The slope can be calculated by dividing the rise by run.

3 0

2 years ago

Write the equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3

Inga [223]

Answer:

The equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3 is:

$\mathbf{y=-\frac{2}{3}x+1}$

Step-by-step explanation:

We need to write equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3.

The equation for slope-intercept form is: $y=mx+b$

where m is slope and b is y-intercept.

We are given slope m = -2/3 and we need to find y-intercept i.e b to write equation of line.

Using point (3,-1) and slope m=-2/3 we can find y-intercept i.e b

$y=mx+b\\-1=-\frac{2}{3}(3)+b\\-1=-2+b\\b=-1+2\\b=1$

So, y-intercept b = 1

The equation of the line, in slope-intercept form, that passes through (3,-1) and has a slope = -2/3 is:

$y=mx+b\\\mathbf{y=-\frac{2}{3}x+1}$

7 0

3 years ago

What is the coefficient of x^3 in the expansion of (2x-3)^5?

docker41 [41]

Answer:

309

Step-by-step explanation:

(2x-)^5

step 1

1 5 10 10 5 1

step 2

1(2x¹-3^0) 5(2x²-3^5) 10(2x³-3^4)

10(2x^4-3³) 5(2x^5-3²)

1(2x^0-3¹)

step 3

(2x) (10x²-243) (20x³-81) (20x^4-27)

(10x^5-9) (2-3)

step 4

2 -243-61-7 +1 -1=309

4 0

3 years ago

Answer pls .no spam

vagabundo [1.1K]

Step-by-step explanation:

- 8 (3n - 5) \\ - 24n + 40 \\ please \: give \: full \: question \\

7 0

2 years ago