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kvasek [131]
3 years ago
13

Solve each system by substitution y=-6x-13 5x+4y=-14

Mathematics
1 answer:
Whitepunk [10]3 years ago
8 0

Answer:x=2.28,y=-26.88

Step-by-step explanation:

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olya-2409 [2.1K]
I want to say answer (A)is the correct answer

3 0
3 years ago
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The radius of Circle A is 6 mm. The radius of Circle B is 4 mm greater than the radius of Circle A. The radius of Circle C is 2
labwork [276]

Answer:

Area of circle A =113.14 mm²

Area of circle b = 314.29 mm²

Area of circle C = 452.57 mm²

Area of circle A = 254.57 mm²

2.25 times

Step-by-step explanation:

Area of a circle = nr²

where n = 22/7

r = radius

Circle A's radius = 6mm

Circle B's radius = 6mm + 4mm = 10mm

Circle C's radius = 10mm + 2mm = 12mm

Circle D's radius = 12mm - 3mm = 9mm

Area of circle A = (22/7) x 6² = 113.14 mm²

Area of circle b = (22/7) x 10² = 314.29 mm²

Area of circle C = (22/7) x 12² = 452.57 mm²

Area of circle A = (22/7) x 9² = 254.57 mm²

Number of times the area of circle D is greater than that circle A = Area of circle D / Area of circle A

254.57 mm² / 113.14 mm² = 2.25 times

4 0
3 years ago
The box plots below show student grades on the most recent exam compared to overall grades in a class:
777dan777 [17]

The statement that best describes the information about the medians would be: the class median and exam median are almost the same.

<h3>Median of a Data Set on a Box Plot</h3>
  • The median of any data distribution that is plotted on a box plot is indicated by the vertical line that divides the rectangular box in the box plot.

Thus:

  • The median for class is 84
  • The median for exam is 85.

Therefore, the statement that best describes the information about the medians would be: the class median and exam median are almost the same.

Learn more about Box Plot on:

brainly.com/question/10209877

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2 years ago
BRAINLIEST BRAINLIEST BRAINLIEST PLEASE ANDSER IT IS TIMED THANK YOU SO MUCCH
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Answer:

x=-b/2a

Step-by-step explanation:

hope that helps :)

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2 years ago
In my pocket I have 8 quarters and 6 dimes. What fractional portion of the coins in my pocket are dimes
marin [14]

im pretty sure the answer is 3/4

7 0
3 years ago
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