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Nataliya [291]
3 years ago
11

WILL GIVE BRAINLIEST FOR A CORRECT ANSWER:

Mathematics
2 answers:
guapka [62]3 years ago
7 0

Answer:

Solution:

the boat's speed in still water: x

The speed with current: (x+3)

The speed against current: (x-3)

The equation is

3(x+3) = 4(x-3)

x = 21 mph

The distance = 3*(21+3)= 72 miles

I  choose (A)

Step-by-step explanation:

dlinn [17]3 years ago
3 0

Answer:

72 Miles

Step-by-step explanation:

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Would I have to subtract both numbers by 180? Helppp
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3 years ago
The quadratic function g(x) = ax^2 + bx + c has the complex roots (-5+9i) and (-5-9i). (you may assume that a = -1) what is the
gavmur [86]

Answer:

  • b = -10, c = -106

Step-by-step explanation:

<h3>Given</h3>

<u>Quadratic function </u>

  • g(x) = ax^2 + bx + c

with the roots:

  • (-5+9i) and (-5-9i)
<h3>To find </h3>
  • b and c if a = -1
<h3>Solution</h3>

<u>As we know the sum of the roots is -b/a and the product of the roots is c/a. Substituting values and solving for b and c:</u>

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  • -10 = b
  • b = -10

And

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  • (-5)² - (9i)² = -c
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3 years ago
NEED HELP 20 POINTS!!!
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You said worth 20, but it’s worth 10 soo
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