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TEA [102]
3 years ago
14

Which of the following correctly shows the length of each radius, the point where the circles intersect, and the equation of the

tangent line at this point?

Mathematics
1 answer:
ollegr [7]3 years ago
6 0

actually box 3 is correct.

because their radiuses are easy to find

but the tangent line is x=-4 or x=4

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Roma sherry drove 80 miles from her home town to her​ parents' town. during her return​ trip, she was able to increase her speed
mr_godi [17]
<span>Answer: Roma Sherry drove 330 miles from her hometown to Tucson. During her return trip, she was able to increase her speed by 11 mph. If her return trip took 1 hour less time, find her original speed and her speed returning home. : Let s = original speed then (s+11) = return speed : Write a time equation: Time = distance%2Fspeed : Original time = return time + 1 hr 330%2Fs = 330%2F%28%28s%2B11%29%29 + 1 : Multiply equation by s(s+11) and you have: 330(s+11) = 330s + s(s+11) : 330s + 3630 = 330s + s^2 + 11s : 0 = 330s - 330s + s^2 + 11s - 3630 : A quadratic equation: s^2 + 11s - 3630 = 0 Factor this to: (s + 66)(s - 55) = 0 Positive solution s = 55 mph is original speed. : Find the time 330/55 = 6 hr, original time and 330/66 = 5 hrs, faster time; confirms our solution.</span>
7 0
3 years ago
Eh help me out<br> what 18% of 32
DIA [1.3K]

Answer:

5.76

Step-by-step explanation:

18% of 32

=18% x 32

=18/100 x 32

=576/100

=5.76

6 0
2 years ago
Plsssss helps 50 points
lutik1710 [3]

Here's the solution,

volume of cylinder :

=》

\pi  r {}^{2} h

where,

  • r = radius
  • h = height

now, let's solve

=》

3.14 \times 7 \times 7 \times 13

=》

2000.18

So, volume = 2000.2 cm³

3 0
3 years ago
Read 2 more answers
Probability of two or more events happening
Anit [1.1K]

Answer: Independent

Step-by-step explanation: Just multiply the probability of the first event by the second.

4 0
3 years ago
5. Kamala worked for 7 1/2 h. She spent 2/3 of the time on her computer. How long was she on her computer?​
Lina20 [59]

Answer:

5 hrs

Step-by-step explanation:

7 1/2 hours equates to 450 minutes total

2/3 of 450 = 300 total minutes

turning the minutes back into hours, 300 / 60 = <u>5</u>

4 0
2 years ago
Read 2 more answers
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