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Aneli [31]
3 years ago
5

Am I correct? If not please explain why!

Mathematics
1 answer:
Kipish [7]3 years ago
6 0

yes, you are correct. every input corresponds to only one output

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The arc length of a sector is equal to four times the radius. Express the arc length s
Sveta_85 [38]

Answer:

Step-by-step explanation:

Given that,

The arc length is four times the radius

Let he radius be 'r'

Then, the arc length be 's'

The arc of a sector can be calculated using

s=θ/360 × 2πr

Then, given that s=4r

So, 4r = θ × 2πr / 360

Divide both side r

4 = θ × 2π/360

Then, make θ subject of formula

θ × 2π = 360 × 4

θ = 360 × 4 / 2π

θ = 720 / π

So, area of the sector can be determine using

A = θ / 360 × πr²

Since r = ¼s

Then,

A = (θ/360) × π × (¼s)²

A = (θ/360) × π × (s²/16)

A = θ × π × s² / 360 × 16

Since θ = 720 / π

A = (720/π) × π × s² / 360 × 16

A = 720 × π × s² / 360 × 16 × π

A = s² / 8

Then,

s² = 8A

Then,

s= √(8A)

s = 2 √2•A

6 0
3 years ago
Evaluate a + b for a= 34 and b= -6
SpyIntel [72]

Answer:

Hey there!

a+b

34+(-6)

34-6

28

Let me know if this helps :)

4 0
4 years ago
URGENT WILL MARK BRAINLIEST
allochka39001 [22]

Explanation:

Draw altitude AD to segment BC such that point D is on BC. This creates right triangles ADB and ADC.

Hypotenuses AB and AC are given as congruent. Leg AD in each triangle is congruent to itself by the reflexive property of congruence.

Then the triangles ADB and ADC are congruent by the HL congruence theorem.

Angles B and C are corresponding parts of congruent triangles, so are congruent by CPCTC.

5 0
3 years ago
Using the diagram below, find x.
Serjik [45]

The value of x is 28

Solution:

The approximate image of the question is attached below.

Given data:

The angles of the triangle are x°, (2x + 5)° and (3x + 7)°.

By triangle sum theorem,

<em>Sum of all the angles of the triangle = 180°</em>

x° + (2x + 5)° + (3x + 7)° = 180°

x° + 2x° + 5° + 3x° + 7° = 180°

6x° + 12° = 180°

Subtract 12° from both sides of the equation, we get

6x° = 168°

Divide by 6° on both sides of the equation, we get

x° = 28°

x = 28

The value of x is 28.

4 0
4 years ago
Divide<br> -4%2 = (-2 2/3)
Fudgin [204]

Answer:

The sides are not equal

Step-by-step explanation:

5 0
3 years ago
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