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Natasha2012 [34]
2 years ago
5

A circular sector has a central angle of 22.5° and a radius of 4 ft.

Mathematics
1 answer:
Taya2010 [7]2 years ago
4 0

Answer:

1.6

Step-by-step explanation:

I used an arc length calculator

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Please help! I don’t know the answer
Maru [420]

a1 = 54

a2 = (1/3)a1 = (1/3) * 54 = 18

a3 = (1/3)a2 = (1/3) * (1/3)a1 = 18/3 = 6

etc.

y = 54(\dfrac{1}{3})^{x - 1}

7 0
3 years ago
A rectangle with the vertices (3, -2), (3, -4), (7, -2), (7, -4) is reflected across the x-axis and the rotated 90 degrees count
irga5000 [103]

Answer:

The new vertices are: (-2,3),(-4,3),(-2,7),(-4,7)

Step-by-step explanation:

The given vertices are (3,-2),(3,-4),(7,-2),(7,-4)

Rule for reflection about x axis is (x,y)→(x,-y).

So, (3,-2)→(3,2)

     (3,-4)→(3,4)

     (7,-2)→(7,2)

     (7,-4)→(7,4)

Now, new vertices after reflection about x axis are (3,2),(3,4),(7,2),(7,4).

Rule for 90 degree rotation counter-clockwise is (x,y)→(-y,x).

So, (3,2)→(-2,3)

     (3,4)→(-4,3)

     (7,2)→(-2,7)

     (7,4)→(-4,7)

Therefore, the new rectangle after reflection about x axis and rotated 90 degrees counter-clockwise has the following vertices:

(-2,3),(-4,3),(-2,7),(-4,7)

4 0
3 years ago
A recipe calls for 18 fluid ounces of milk. If Angelica has 2 pints of milk in her refrigerator, does she have enough for the re
natali 33 [55]

Answer:

yes

Step-by-step explanation:

yes

8 0
3 years ago
Read 2 more answers
Harry can read 40 pages in 25 minutes. How many pages can he read in 11/2 hours?
Naddik [55]

Answer:

180 pages?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If $500 is put into a savings account at 9% interest compounded continuously, how much will it be worth at the end of 3 years? H
Digiron [165]

Answer:

$654.98

Around 7.7 years

Step-by-step explanation:

Value = P × e^(rt)

= 500 × e^(0.09×3)

= 500 × e^(0.27)

= 654.9822254

Double: 500 × 2 = 1000

1000 = 500 × e^(0.09t)

e^(0.09t) = 2

Use ln both sides

0.09t × lne = ln2

t = ln2 ÷ 0.09

t = 7.70163543

7 0
3 years ago
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