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N76 [4]
3 years ago
7

Sine, cosines and tangent of 30 45 and 60 degrees

Mathematics
1 answer:
bonufazy [111]3 years ago
3 0

Answer:

Sine 30 =

\frac{1}{2}

Sine 45 =

\sqrt{ \frac{2}{2} }

Sine 60 =

\sqrt{ \frac{3}{2} }

Cos 30 =

\sqrt{ \frac{3}{2} }

Cos 45 =

\sqrt{ \frac{2}{2} }

Cos 60 =

\frac{1}{2}

Tan 30 =

\sqrt{ \frac{3}{3} }

Tan 45 =

1

Tan 60 =

\sqrt{3}

Step-by-step explanation:

I hope it helps

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Can somewon help me i dont get this kind of math
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Answer:

256 in²

Step-by-step explanation:

6 0
3 years ago
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A cylinder has a radius of 3 and a height of 4 Using 3.14 (pi) Round your answer to the nearest hundredth What is the volume of
tensa zangetsu [6.8K]

Answer:

113.04 cubic units. ".04" is four hundredths.

(the units are not given here. They could be cubic feet, cubic inches, cubic meters, cubic centimeters. or other measurements.)

Step-by-step explanation:

To find volume we need to multiply the area of the base times the height.

The base of a cylinder is a circle.

The area is πr²

The given radius here is 3

3² is 9

π × 9 using 3.14 is 28.26

Multiply that area by the given height, 4

28.26 × 4 = 113.04

The volume if this cylinder is 113.04 cubic units.

6 0
2 years ago
Gerry thinks that the points (4,2) and (−1,4) form a line perpendicular to a line with slope 4. Do you agree? Why
faust18 [17]

Answer:

The answer to your question is these lines are not perpendicular.

Step-by-step explanation:

Data

A (4, 2)

B (-1, 4)

slope = m = 4

Perpendicular lines mean that these lines cross and form an angle of 90°. Also, the slope of perpendicular lines is negative reciprocals.

Process

1.- Find the slope of the second line and compare it to the slope given.

slope = \frac{y2 - y1}{x2 - x1}

Substitution

slope = \frac{4 - 2}{-1 - 4}

Simplification and result

slope = \frac{-2}{5}

-2/5 is not a negative reciprocal of 4, so these lines are not perpendicular.

4 0
3 years ago
Mutiple choice pls help !!
Vedmedyk [2.9K]

Answer:

5π m

Step-by-step explanation:

Using the pythagorean theorem we can figure out that the third side is 5m

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3^2 + 4^2 = C^2

9 + 16 = C^2

25 = C^2

√23 = √(C^2)

C = 5m

Side C is also the diameter of the circle, so the radius is 5/2, or 2.5

From that we can use the circumference formula, Circumference = 2π<em>r</em>

Circumference = 2 π (2.5) = <u>5π m</u>

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2 years ago
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Ierofanga [76]

Answer:

y + 3 = (-1/2) x

Step-by-step explanation:

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3 years ago
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