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lawyer [7]
3 years ago
5

Pleaseee help its a really important test and i dont know what im doing

Mathematics
1 answer:
pshichka [43]3 years ago
3 0

Answer:

Step-by-step explanation:

one circle, lets name it x, Circumference(x)=2*3.14*r= 3.14*d, where d is the diameter

C=2*11*3.14

circle y= Circumference(y)=3.14*2*4

ratio of the radii

C(x)/C(y)=(2*11*3.14)/(2*4*3.14)=11/4= 2 3/4

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Can someone help me?
Sergio [31]

9514 1404 393

Answer:

  • tan B = 12/5
  • cos B = 5/13
  • sin B = 12/13

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the applicable ratios:

  Tan = Opposite/Adjacent   ⇒   tan B = CA/CB = 12/5

  Cos = Adjacent/Hypotenuse   ⇒   cos B = BC/BA = 5/13

  Sin = Opposite/Hypotenuse   ⇒   sin B = AC/AB = 12/13

3 0
3 years ago
What is the factored form of X^9+27 A (x^3-3)(x^6+3x^3+9) B(x^3+3)(x^6-3x^3+9) C(x-3)^3(x^6+3x^3+9) D(x+3)^3(x^6-3x^3+9)​
irinina [24]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
What are the parts of the circle
Oksanka [162]

The parts of a circle are the r<em>adius, diameter, circumference, arc, chord, secant, tangent, sector and segment.</em>

Radius:

The distance from the center to any point on the circle.

Diameter:

The distance across the circle through the center point.

Circumference:

The distance around a circle.

Arc:

arcs in the same circle that have exactly one point in common. measure of arc divided by 360 multiplied by the circumference. the length of an arc. semicircle. an arc that is half of a circle; always measures 180 degrees.

Chord:

a line segment that connects two points of a circle.

Secant:

A secant is a line that intersects a circle in two points.

Tangent:

A tangent is a line that intersects the circle in exactly one point.

Sector:

region bounded by an arc of a circle and the two radii to the arc's endpoints. - A sector is like a "pizza slice" of the circle. It consists of a region bounded by two radii and an arc lying between the radii.

Segment:

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4 0
2 years ago
Find the 13th term of the sequence 5, 8, 11, 14, 17...
snow_tiger [21]

5,8,11,14,17,20,23,26,29,32,35,38,41

Add each number by 3

13th term is 41 ( first choice)

6 0
3 years ago
Read 2 more answers
h(n)=-13nh(n)=−13nh, left parenthesis, n, right parenthesis, equals, minus, 13, n Complete the recursive formula of h(n)h(n)h, l
mr Goodwill [35]

Answer:

h(1)=-13

h(n)=h(n-1)-13, n\geq 2

Step-by-step explanation:

We are given that

h(n)=-13n

We have to find the recursive formula of h(n).

Substitute n=1

h(1)=-13

n=2

h(2)=-13-13=-26=h(1)-13

n=3

h(3)=-13(3)=-39=-26-13=h(2)-13

h(4)=-13(4)=-52=-39-13=h(3)-13

:

:

:

h(n)=h(n-1)-13

Therefore, the recursive formula is given by

h(1)=-13

h(n)=h(n-1)-13, n\geq 2

5 0
4 years ago
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