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tatuchka [14]
3 years ago
6

Help please !! Given sin theta= 2/5 and 0°

Mathematics
1 answer:
Fofino [41]3 years ago
3 0

Answer:

C

Step-by-step explanation:

sinθ=\frac{2}{5}

θ=sin⁻¹ ( \frac{2}{5} )

θ=23.57817848

2θ=47.15635696

sin2θ=sin(47.15635696)=0.7332121112°≈ ((4\sqrt{21})/25)

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A 20-sided regular polygon has an angle measure represented as 3gº.
Andre45 [30]

The value of g in the 20 sided regular polygon is 54.

<h3>How to find the angles of a regular polygon?</h3>

If all the polygon sides and interior angles are equal, then they are known as regular polygons.

The polygon given is a 20 sided regular polygon and the measure of each angle is 3g degrees.

Therefore, let's find g.

The sum of interior angles of a 20 sided polygon is as follows:

180(n - 2) = 180(20 - 2) = 180(18) = 3240

Therefore,

each angle = 3240 / 20 = 162

Hence,

162 = 3g

g = 162 / 3

Therefore,

g = 54

learn more on regular polygon here: brainly.com/question/16992545

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8 0
1 year ago
The triangle is a(n) ___ triangle
mash [69]

Answer:

Acute

Step-by-step explanation:

two of the angles are acute and the other is right.

4 0
3 years ago
If f(x)=x squared + 3x+5 what is f(a+h)
zheka24 [161]

Answer:

a² + 2ah + 3a + 3h + 5 + h²

Step-by-step explanation:

to evaluate f(a + h) substitute x = a + h into f(x)

f(a + h)

= (a + h)² + 3(a + h) + 5 ← distribute

= a² + 2ah + h² + 3a + 3h + 5



8 0
3 years ago
Algebraic expression for x more than 5.​
Lina20 [59]

Answer:

5 + x

Step-by-step explanation:

x more than 5 is 5 + x

7 0
4 years ago
Read 2 more answers
Nicole and adam are each saving money for a car. the total amount of money nicole will save is represented by the function f (x)
Yakvenalex [24]
For this case we have the following functions:
 f (x) = 36 + 4x
 g (x) = x2 + 15
 By matching both functions we have:
 f (x) = g (x)
 36 + 4x = x2 + 15
 Rewriting we have:
 x2 + 15 - 4x - 36 = 0
 x2 - 4x - 21 = 0
 Solving the polynomial we have:
 (x-7) (x + 3) = 0
 x = -3
 x = 7
 Taking the positive root we have:
 x = 7
 Answer:
 
They will have the same amount of money saved after:
 
x = 7 weeks
8 0
3 years ago
Read 2 more answers
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