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barxatty [35]
3 years ago
10

Evaluate sec(-4π/3). -2 - 2√3 divided by 3 2 2√3 divided by 3

Mathematics
1 answer:
sveticcg [70]3 years ago
7 0

sec((-(4 * pi)) / 3 radians) = -2

Please mark brainliest!

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If you are making a scale drawing of a girrafe that is 6m tall, and the height of the girrafe in your drawing is 3cm, what is th
k0ka [10]

Answer:

1cm to 200cm

Step-by-step explanation:

l of giraffe = 6m = 600cm

l of giraffe drawing = 3cm

scale = drawing : real = 3 : 600 = 1 : 200

Therefore the scale is 1cm to 200cm

8 0
3 years ago
I NEED HELP PLEASE, THANKS
castortr0y [4]

First, find the scale factor.

8.4 / 7 = 1.2

9 / 7.5 = 1.2

7.2 / 6 = 1.2

Since both solids are different sizes, the solids aren't congruent.

The size ratio for all the sides are:

8.4:7

9:7.5

7.2:6

Since the scale factor isn't 1:1 this also proves that the solids are NOT congruent.

Since both solids are the same kind of shape and have an identical scale factor, the solids are similar.

Best of Luck!

5 0
4 years ago
Dy/dx = (cos x) e^(y+sinx) and y = 0 when x = 0. find the original equation
Korvikt [17]
Find the general solution by separating the variables then integrating: 
dy / dx = cosx℮^(y + sinx) 
dy / dx = cosx℮ʸ℮^(sinx) 
℮^(-y) dy = cosx℮^(sinx) dx 
∫ ℮^(-y) dy = ∫ cosx℮^(sinx) dx 
-℮^(-y) = ℮^(sinx) + C 
℮^(-y) = C - ℮^(sinx) 
-y = ln[C - ℮^(sinx)] 
y = -ln[C - ℮^(sinx)] 

Find the particular solution by solving for the constant: 
When x = 0, y = 0 
-ln(C - 1) = 0 
ln(C - 1) = 0 
C - 1 = 1 
C = 2 
<span>y = -ln[2 - ℮^(sinx)]


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!</span>
3 0
3 years ago
Plss help mee
Elden [556K]

Answer:

30 miles

Step-by-step explanation:

8 0
4 years ago
A scale model of a street sign is in the shape of a triangle. The base is 4.25 cm and the height is 8.8 cm what is the area of t
agasfer [191]

Answer:

18.7 cm²

Step-by-step explanation:

To work out the area of a triangle you have to use the formula

\frac{1}{2} * B * H

Where "B" is the base and "H" is the height

Since these are decimals, I like to convert them into fractions which makes them easier to calculate with

The base is 4.25 cm which will turn into 4\frac{1}{4}

The height is 8.8 cm which will turn into 8\frac{8}{10}

Now we use the formula

 \frac{1}{2} * B * H

 \frac{1}{2} * 4\frac{1}{4} *8\frac{8}{10}

→ Convert to improper fractions

 \frac{1}{2} * \frac{17}{4} *\frac{88}{10}

→ Simplify

 \frac{187}{10}

→ Convert into decimal

18.7

7 0
3 years ago
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