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3 years ago

NEED HELP LIKE NOW 15 points if answered!!!!!!! how do you work it out

Mathematics

1 answer:

goblinko [34]3 years ago

4 0

Remark

You have to stare at this for a moment before you catch on. When you fold the arc into a circle, 8pi becomes the circumference of the base circle.

Formula

C = 2*pi*r

C = 8pi

Solution

8pi = 2pi * r Divide both sides by 2pi

8pi / 2 pi = r

4 = r Answer

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Complete the ratio table to convert the units of time from hours to weeks or weeks to hours.

strojnjashka [21]

Answer:

Step-by-step explanation:

1176=7 weeks

3 weeks=504

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3 years ago

I need to know the answer to this

scoundrel [369]

The answer is x=−1.3125

I hope this helps.

Have a "AWESOME" day! :)
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3 years ago

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How can you prove a triangle is not a right angle

ExtremeBDS [4]

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Step-by-step explanation:

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2 years ago

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Someone please help, its for a hw assignment I have due today. What is the equation of the line through (3, 7) that is perpendic

Brilliant_brown [7]

The required equation is:

$y=-\frac{6}{5}x+\frac{53}{5}$

Step-by-step explanation:

Let l_1 be the line through (-1, -2) and (5, 3)

and l_2 be the line we require which passes through (3,7)

We have to find the lope of l_1 first

$m_1=\frac{y_2-y_1}{x_2-x_1}\\=\frac{3-(-2)}{5-(-1)}\\=\frac{3+2}{5+1}\\=\frac{5}{6}$

we have to find the equation of line perpendicular to l1

The product of slopes of two perpendicular lines is -1

Let m_2 be the slope of l_2

Then

$\frac{5}{6}*m_2=-1\\m_2=-\frac{6}{5}$

The general slope-intercept form is:

y=mx+b

Putting the value of slope

$y=-\frac{6}{5}x+b$

To find the value of b, we will put (3,7) in the equation

$7=-\frac{6}{5}(3)+b\\7=-\frac{18}{5}+b\\b=7+\frac{18}{5}\\b=\frac{35+18}{5}\\b=\frac{53}{5}$

Putting the values of b and m in standard slope intercept form:

$y=-\frac{6}{5}x+\frac{53}{5}$

Hence,

The required equation is:

$y=-\frac{6}{5}x+\frac{53}{5}$

Keywords: Equation of line

Learn more about equation of line at:

#LearnwithBrainly

7 0

3 years ago

Charlotte Speed 1/2 of the day shopping at the mall she spent 1/4 of the time trying on jeans what fraction of the day the Charl

nordsb [41]

Answer: the fraction of the day is 1/4

Step-by-step explanation:

Charlotte spent 1/2 of the day shopping at the mall.

she also spent 1/4 of the time trying on jeans. The whole day is assumed to be 1. The fraction of the day that Charlotte spends on trying jeans is the ratio of the time she spends on trying jeans to the whole day. It becomes

(1/4)/1 = 1/4

So the fraction of the day the Charlotte spend in trying jeans is 1/4

8 0

3 years ago