3 years ago

Please could u help?

Mathematics

1 answer:

noname [10]3 years ago

7 0

Answer:

8. Y-int= 3 X-int= 0 Slope=0

9. Y-int=4 X-int= 2 Slope= 3/2

Step-by-step explanation:

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(2sin60°)(3tan60°)—(4tan45°)(2cos45°)

Dimas [21]

Answer:

$9 - 4\sqrt{2}$

Step-by-step explanation:

sin60° = $\frac{\sqrt{3} }{2}$

tan60° = $\sqrt{3}$

tan45° = 1

cos45° = $\frac{1}{\sqrt{2} }$

(2sin60°)(3tan60°) - (4tan45°)(2cos45°)

now substitute the values of each trigonometrical angles

$(2*\frac{\sqrt{3} }{2} )(3*\sqrt{3} ) - (4*1)(2*\frac{1}{\sqrt{2} } )$

$\sqrt{3} * (3\sqrt{3}) - 4*(\frac{2}{\sqrt{2} } )$

$3*3 - 4*\frac{2}{\sqrt{2} } *\frac{\sqrt{2} }{\sqrt{2} }$

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$9 - 4 * \sqrt{2}$

$9 - 4\sqrt{2}$

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3 years ago

Help!!! ASAP!!! Pls!!!

xeze [42]

Answer:176.6cm2

Step-by-step explanation:

Pi*r^2

diameter is 15

divide by 2 is radius

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3 years ago

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Paladinen [302]

Answer:

Step-by-step explanation:

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3 years ago

A flight from Boston to London took only 5 hours because of a strong tailwind. The flight back to Boston against the same wind t

Nata [24]

Step-by-step explanation:

let v is the speed of the wind,

the equation of the speed:

(550 + v ) × 5 = (550 - v) × 6

2750 +5v = 3300 - 6v

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11v = 550

v = 550/11

v = 50

therefore, the speed of the wind =

50 mph

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3 years ago

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icang [17]

Answer:

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3 years ago