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BlackZzzverrR [31]
3 years ago
12

Find the circumference of a circle with diameter,

Mathematics
1 answer:
blondinia [14]3 years ago
4 0

Answer:

Step-by-step explanation:

c = 2 pr r

c = d pi

c/pi = d

2.65 / pi = 0.8435211

so 0.84 meters

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Identify an equation in point-slope form for the line perpendicular to
Alchen [17]

Answer:

y - 9 = \frac{1}{2}(x +3)

Step-by-step explanation:

Given

Function; y = -2x + 8

Required

Find an equation perpendicular to the given function if it passes through (-3,9)

First, we need to determine the slope of:  y = -2x + 8

The slope intercept of an equation is in form;

y = mx + b

<em>Where m represent the slope</em>

Comparing  y = m_1x + b to y = -2x + 8;

We'll have that

m_1 = -2

Going from there; we need to calculate the slope of the parallel line

The condition for parallel line is;

m_1 * m_2 = -1

Substitute m_1 = -2

(-2) * m_2 = -1

Divide both sides by -2

m_2 =\frac{ -1}{-2}

m_2 =\frac{1}{2}

The point slope form of a line is;

y - y_1 = m_2(x - x_1)

Where (x_1,y_1) = (-3,9) and m_2 =\frac{1}{2}

y - y_1 = m_2(x - x_1)becomes

y - 9 = \frac{1}{2}(x - (-3))

Open the inner bracket

y - 9 = \frac{1}{2}(x +3)

<em>Hence, the point slope form of the perpendicular line is: </em>

<em />y - 9 = \frac{1}{2}(x +3)<em />

3 0
3 years ago
Bill bought a shirt for $35.80 plus he paid an additional 7% in sales tax.
dezoksy [38]

Answer:

$2.50

Step-by-step explanation:

The cost for the shirt is 35.80

7%=0.07

35.80 x 0.07 = 2.50

Answer is $2.50

3 0
3 years ago
Please help!! Will mark first answerer brainiest​!! Thank you so much!
Mrac [35]
The answer is C i believe, always remember to add alike terms. 
8 0
3 years ago
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Margarita [4]

Answer:

(8/2)(0.10)^2(0.90)^6

Step-by-step explanation:

Khan

3 0
3 years ago
The price of a technology stock has dropped to $9.61 today. Yesterday's price was $9.72. Find the percentage decrease. Round you
Novay_Z [31]
Help me with mine pls
3 0
3 years ago
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