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dalvyx [7]
3 years ago
5

Discounts mark up and mark downs! Due IN 10 mins!! PLZ HELP 2. $199 ring; 10% discount

Mathematics
1 answer:
lisov135 [29]3 years ago
4 0

Answer:

19.9 is the answer

Step-by-step explanation:

10 percent of 199 is 19.9

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kompoz [17]

Answer: 4 centimeters is the mode

Step-by-step explanation: Mode is the number that comes out the most, and 4 comes out 6 times, which is the most.

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2 years ago
In right triangle RQS, angle S is a right angle. If cosQ= 9/41 then sinR= 9/41. True or False
Allisa [31]
True.
For a right angle triangle, the cos of one of the non-right angles equals the sin of the other non right angle
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3 years ago
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zhuklara [117]
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3 years ago
Find an equation of the sphere that passes through the point (6, -2, 3) and has center (-1, 2, 1). Find the curve in which the s
svet-max [94.6K]

Answer:

A)  x^2 + 2x+ y^2 - 4y + z^2 - 2z - 63 = 0

B) radius = 5

center  = (4,-1,-3)

Step-by-step explanation:

x^2 + y^2 + z^2 - 8x + 2y + 6z + 1 = 0

A ) Determine the curve in which the sphere intersects the yz-plane

determine the radius ( r ) =  √((6-(-1))2+(-2-2)2+(3-1)2) = √69

next the equation of the sphere ( curve in which the sphere intersects the yz-plane )

x^2+2x+y^2-4y+z^2-2z-63 = 0

B) determine the center and radius of the sphere

X^2 + y^2 + z^2 -8x + 2y +6z + 1 = 0

(x-4)2+(y+1)2+(z+3)2 = 25 = 52

radius = 5

center  = (4,-1,-3)

5 0
3 years ago
Please answer this correctly without making mistakes
IrinaVladis [17]

Answer:

\boxed{\sf 319:3388}

Step-by-step explanation:

Total number of tickets sold = 3388

Total number of coach tickets = 3069

Total number of first-class tickets = Total number of tickets sold - Total number of coach tickets

= 3388 - 3069

= 319

\therefore

Ratio of the number of first-class tickets to the total number of tickets = 319:3388

8 0
3 years ago
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