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3 years ago

15

Flying against the wind, an airplane travels 3360 kilometers in hours. Flying with the wind, the same plane travels 7560 kilomet

ers in 9 hours. What is the rate of the plane in still air and what is the rate of the wind?

1 answer:

Makovka662 [10]3 years ago

5 0

Answer:

Ananya can I iis s s s s s s su uu love love love love u

Step-by-step explanation:

sbb s s s s s s s s s

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27 divided by 89,420 remainder as a faction?

LUCKY_DIMON [66]

No not really because 89,420 cant be bigger than 27

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3 years ago

Gnesinka [82]

Answer:n=-2 or n=4

Step-by-step explanation:

Q is not inversible if det(Q)=0

$\left|\begin{array}{ccc}6&7&-1\\3&n&5\\9&11&n\end{array}\right| =0\\\\\\\\6(n^2-55)-3(7n+11)+9(35+n)=0\\\\n^2-2n-8=0\\\\\Delta=36=6^2\\\\n=\dfrac{2-6}{2} =-2\ or\ n=\dfrac{2+6}{2}=4\\$

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Select TWO values of x that are roots

Sauron [17]

$x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\y=x^2+3x+5\\\\a=1;\ b=3;\ c=5\\\\b^2-4ac=3^2-4(1)(5)=9-20=-11\\\\x_1=\dfrac{-3-\sqrt{-11}}{2\cdot1}=\dfrac{-3-\sqrt{-11}}{2}\\\\x_2=\dfrac{-3+\sqrt{-11}}{2}$

Answer: A and B.

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Which equation can be used to solve for b? 8ft and angle 30

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7000 cm² is the same area as<br> .......... m².

Dennis_Churaev [7]

Answer:

1000cm²=0.1m²

so 7000cm²=0.7m²

Step-by-step explanation:

please mark me as brainliest

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