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2 years ago

What is sin 7pi/4? I'm currently taking a tirg course and need help

1 answer:

5 0

To ease the understanding, let's write it in degrees and not in Radian:

Formula of conversion: Degree°/180 = Radian/π

Convert 7π/4 in degrees: = (7x180)/4 = 315°

This angle is in the IV th Quadrant of the UNIT circle. So you can write 315° or - 45° .

sin(7π/4) = sin(315°) = sin( - 45°) = - sin(45°) = - (√2)/2

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What is the slope of the line? -2/5 2/5 5/2 1/3

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Answer:

Step-by-step explanation:

(0, 3) (5, 1)

(1-3)/(5-0) = -2/5 is the slope

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3 years ago

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Subtract 5x²-7x-6 from 9x² + 3x-4

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Answer:

the answer is 4 x ^2 + 10 x + 2

Step-by-step explanation:

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3 years ago

Aaaaaa help I’m stuck at F I really need to do this so I could get a D please with explanation

Fed [463]

Answer:

$1.51

Step-by-step explanation:

1.25 lb. of dried fruit : $\frac{\$1.84}{lb.}*\frac{1.25\ lb.}{1}=\$2.30$

0.5 lb. of cereal : $\frac{\$2.38}{lb.}*\frac{0.5\ lb.}{1}= \$1.19$

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Money = $5

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2 years ago

Hi please help,i really need it and so appreciate it:)

nadya68 [22]

Hey there!

12 ≥ 5f - 18

5f - 18 ≤ 12

ADD 18 to BOTH SIDES

5f - 18 + 18 ≤ 12 + 18

SIMPLIFY IT!

5f ≤ 30

DIVIDE 5 to BOTH SIDES

5f/5 ≤ 30/5

SIMPLIFY IT!

f ≤ 6

Therefore, your answer is: f ≤ 6

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

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1 year ago

Okay, here's the last four questions i need help with :)

tatiyna

Answer:

Reflection of the y axis

Step-by-step explanation:

This started in quadrant 4 and has now been flipped into quadrant 3 therefore, it is a y axis reflection.

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2 years ago

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