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user100 [1]
3 years ago
7

Using π = 3.14, find the area of a circle with a radius of 16.

Mathematics
1 answer:
timama [110]3 years ago
7 0
29 because the original answer would have been 28.26
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The equation of a circle is (X-3)² + (Y+5)²=25
Gala2k [10]
C. CENTER (-3, 5 ) : R =25
7 0
3 years ago
If 3x + 5y = 2 and 2x - 4y = 20, what is 5x - y?
gavmur [86]

Answer:

= 298/11

Step-by-step explanation:

3x + 5y = 2 | ×2 |

2x - 4y = 20 | ×3 |

6x + 10y = 4

6x - 12y = 60

____________--

22y = -56

y = -56/22

y = -28/11

3x + 5y = 2 | ×4 |

2x - 4y = 20 | ×5 |

12x + 20y = 8

10x - 20y = 100

_____________+

22x = 108

x = 108/22

x = 54/11

5x - y

= 5(54/11) - (-28/11)

= 270/11 + 28/11

= 298/11

8 0
3 years ago
Hey can someone help me with #8? I need to find the rate of change and idk where to get started
AveGali [126]
I’m not 100% sure I’m correct on this but when she started at 12,584 miles, her tank was full. After driving, it was at 12,584 miles which is a difference of 208 miles. So if you put that into a fraction: it would be 31.12 dollars/208 miles, Which means every 31.12 dollars spent, she is able to drive 208 miles. Now all you need to do is simplify that. If you divide 31.12 by 208, you get around .149. That rounded would be about .15 gallons of gas. So every (and I don’t know if t tells you to round or not so be careful on that) .149 dollars, (not 149, it’s .149) she goes one mile.
5 0
3 years ago
Your friend just recovered from a painful bacterial ear infection. Her first day back at school, she says, "Scientists should ju
Goryan [66]

Answer:

Earth dies

Step-by-step explanation:

If there were no bacteria on earth everything that lives and breaths will cease to exist, No water, no trees, no birds, no air, no humans. everything will be gone the earth would just be lifeless

6 0
2 years ago
A food truck sells tacos for 6.50 each and burritos for 7.50 each. The food truck's revenue from selling a total of 164 tacos an
olga55 [171]

Answer:

12 burritos and 167 tacos

Step-by-step explanation: 164 x 6.5 = 1066

1157 - 1066 = 91

91/7.5 about 12

164 tacos and 12 burritos

5 0
3 years ago
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