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dybincka [34]
3 years ago
6

Do you guys understand these.

Mathematics
2 answers:
tankabanditka [31]3 years ago
8 0
Yes I do understand them why do you want to know
Elodia [21]3 years ago
3 0
Fifirst one is C becuase of the formula c=2peiR and you solve for pei
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A café used 640 ounces of water to make tea. How many quarts of water did the café use PLEASE PLEASE PLEASE SHOW YOUR WORK
Luden [163]
1 quart = 32 ounces 

<span>640 / 32 

if you need more explaining just ask </span>
6 0
3 years ago
Point B is a point of tangency. Find the radius r of OC.
Bumek [7]

Answer:

r = 16 units

Step-by-step explanation:

From the figure attached,

AB is the tangent drawn from a point A to the circle C.

BC = r [Radius of the circle]

Length of AC = (18 + r)

AB = 30

By the property of a tangent drawn to a circle,

"Radius of a circle and tangent are perpendicular to each other"

AB ⊥ BC

By applying Pythagoras theorem in ΔABC,

AB² + BC² = AC²

(30)² + r² = (r + 18)²

900 + r² = r² + 36r + 324

36r = 900 - 324

r = \frac{576}{36}

r = 16 units

6 0
3 years ago
Paula bought a ski jacket on sale for $7 less than half its original price. She paid $84 for the jacket. What was the original p
Eddi Din [679]
1/2x - 7 = 84
1/2x = 84 + 7
1/2x = 91
x = 91 / (1/2)
x = 91 * 2
x = 182 <=== original price
5 0
3 years ago
if rhombus ABCD were reflected across the x axis to create rhombus A'B'C'D', what would the measure of angle D' be?​
Mrac [35]

Answer:

D.64

Step-by-step explanation:

A linear line equals up to 180

A+D=180

Substitute 116 for A

116+D=180

Subtract 116 from both sides

D=64

A reflection across the x-axis won't change the measure of an angle

The answer is 64.

8 0
3 years ago
23 over.30 ÷20 over 24
alexgriva [62]

Remark

Don't try and do this all at once. Break it down, otherwise you'll have layers and brackets all over the place.

Step One

Find 23/0.3

X = 23/0.3 = 76.7

Step Two

Now Divide by 20

x1 = 76.7 / 20

x1 = 3.83

Step Three

Take this result and put it over 24

x2 = x1/24

x2 = 3.83 / 24

x2 = 0.1597 <<<< Answer

6 0
3 years ago
Read 2 more answers
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