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Alina [70]
2 years ago
13

B. Find the circumference of each circle. Use A = 3.14.

Mathematics
1 answer:
natali 33 [55]2 years ago
5 0

Answer:

I. C = 314 meters

II. C = 28.26 yards

Step-by-step explanation:

I. Given the following data;

Diameter, D = 100 m

Pie, π = 3.14

Mathematically, circumference of a circle is equal to;

C = πD

Where;

C is the circumference of a circle.

D is the diameter of a circle.

Substituting into the formula, we have;

C = 3.14 * 100

C = 314 meters

II. Given the following data;

Diameter, D = 9 yards

π = 3.14

Mathematically, circumference of a circle is equal to;

C = πD

Where;

C is the circumference of a circle.

D is the diameter of a circle.

Substituting into the formula, we have;

C = 3.14 * 9

C = 28.26 yards

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Explain how to determine the angle measurement for this angle.
alisha [4.7K]

Answer:

107*

Step-by-step explanation:

from what i know and can see in the picture you line up the bottom line with one and then you go off of what the other line goes through

8 0
3 years ago
(x+7)(x+9) <br>Do this math problem by using the Foil method.​
Setler79 [48]
Foil:
First term
Outer term
Inner term
Last term

By using foil we just times the first terms together so: x*x=x^2

Then we times the outer terms together so: x*9=9x

Then we times the inner terms together so:7*x=7x

Finally we times the last terms together so: 7*9=63

So our equation is:
X^2+9x+7x+63

Now we collect the like terms

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Hope this helped
3 0
3 years ago
Read 2 more answers
The carefully measure out the ingredients to make their pies each pie they make has 5.33 cups of apples in the filling how many
Ivahew [28]

Answer: 31.98 cups

Step-by-step explanation:

  • if there's 5.33 cups in 1 pie

then there is x cups in 6 pies.

set up a proportion:

5.33 cups = 1 pie

x cups = 6 pies

<em>cross multiplication.</em>

31.98 = x

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8 0
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O is the centre of the circle. AB is a diameter.
viktelen [127]

Answer:

The value of a is 63° and the value of b is 27°

Step-by-step explanation:

In the given figure

∵ OA, OB, and OC are radii of the circle O

→ The radii of a circle are equal

∴ OA = OB = OC

In Δ AOC

∵ OA = OC

∴ Δ AOC is an isosceles triangle

→ Base angles of the isosceles triangle are equal

∵ ∠OAC and ∠OCA are the base angles of the triangle

∴ m∠OAC = m∠OCA

∵ m∠OAC = a°

∴ m∠OCA = a°

→ The sum of angles in any triangle is 180°

∵ a° + a° + m∠AOC = 180°

∵ m∠AOC = 54°

∴ a° + a° + 54 = 180°

→ Add the like terms

∴ 2a° + 54 = 180°

→ Subtract 54 from both sides

∴ 2a° = 126°

→ Divide both sides by 2

∵ m∠OAC = m∠OCA = 126 ÷ 2

∴ a° = 63

∴ The value of a is 63°

In ΔBOC

∵ OB = OC

∴ Δ BOC is an isosceles triangle

→ Base angles of the isosceles triangle are equal

∵ ∠OBC and ∠OCB are the base angles of the triangle

∴ m∠OBC = m∠OCB

∵ m∠OBC = b°

∴ m∠OCB = b°

∵ ∠AOC is an exterior angle of ΔBOC at the vertex O

→ The measure of the exterior angle equals the sum of the measure

    of the opposite interior angles to this vertex

∵ ∠OBC and ∠OCB are the opposite interior angle of ∠AOC

∴ m∠OBC + m∠OCB = m∠AOC

→ Substitute their measures

∵ b° + b° = 54°

→ Add the like terms

∴ 2b° = 54

→ Divide both sides by 2

∴ b° = 27

∴ The value of b is 27°

3 0
2 years ago
Need help with this asap………
Iteru [2.4K]

Answer:

y= 32

Step-by-step explanation:

HOPE THIS HELPS :)

8 0
2 years ago
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