4 years ago

Please help me!!!!!!!

Mathematics

1 answer:

lawyer [7]4 years ago

4 0

Its a bc of the roation it made to a 90 degrees

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Circumference (Level 2)

Vsevolod [243]

Answer:

radius r = 2.38732415 m

diameter d = 4.77464829 m

circumference C = 15 m

area A = 17.9049311 m2

7 0

3 years ago

Solve the equation -3 = 8x - 4yfor y

Anestetic [448]

You would add 4y to both sides of the equation which would leave you with

4y - 3 = 8x

then you would divide the entire equation by 4 leaving you with

y - 3/4 = 2x

then you would add 3/4 to both sides of the equation leaving you with

y = 2x + 3/4

8 0

4 years ago

The price of gasoline was $ .579 a liter. the new price is 130% of the old. what is the new price?

sineoko [7]

-0.1737$ Might not be right tried my best

3 0

3 years ago

một máy bay đang bay ở độ cao 1700m.Từ đài quan sát người ta nhìn thấy máy bay dưới 1 góc 25° so với mặt đất.Tính khoảng cách từ

viktelen [127]

Dùng cos tính ra, = 1875,7m

7 0

3 years ago

Find the cos A and tan B to four decimal places. URGENT

Nikolay [14]

cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

Pythagoras theorem

$hypotenuse^{2}$ = $adjacent^{2}$ + $opposite^{2}$

$hypotenuse^{2}$ = $8^{2}$ + $5^{2}$

$hypotenuse^{2}$ = 64 + 25

hypotenuse = $\sqrt{89}$

hypotenuse = 9.4

a) Cos A

Data:

Adjacent = 8

Hypotenuse = 9.4

Formula:

Cos (Angle) = $\frac{adjacent}{hypotenuse}$

Cos A = $\frac{8}{9.4}$

Cos A = 0.8511

A = $cos^{-1}$ (0.8511)

A = 31.7°

b) Tan B

Data:

Opposite = 8

Adjacent = 5

Formula:

Tan (Angle) = $\frac{opposite}{adjacent}$

Tan B = $\frac{8}{5}$

Tan B = 1.6

B = $cos^{-1}$ (1.6)

B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

Learn more about cos at

#LearnwithBrainly

3 0

3 years ago