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Marina86 [1]
2 years ago
8

I’m confused on this one

Mathematics
1 answer:
Elina [12.6K]2 years ago
8 0
The question is asking for the sector arc length WZ,which can be find through the sector formula:
2\pi \: r \times  \frac{angle}{ {360}^{o} }
Since both cz and wz are the radius, they have the same length
cz=wz=5 in.

In this case,
2丌(5)× 122°/360°
=10丌×61/180
=61/36 ×丌
≈5.32in.

Thus 5.32in. is the answer.

Hope it helps!
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26. The cost of a television set has increased continuously by 2%. In 1999, the average
RUDIKE [14]

Answer:

<u>The exponential model is: Cost after n years = 400 * (1 + 0.02)ⁿ</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Cost of the TV set in 1999 = US$ 400

Annual increase rate = 2% = 0.02

2. Write an exponential model to represent this data.

Cost after n years = Cost in 1999 * (1 + r)ⁿ

where r = 0.02 and n = the number of years since 1999

Replacing with the real values for 2020, we have:

Cost after 21 years = 400 * (1 + 0.02)²¹

Cost after 21 years = 400 * 1.5157

Cost after 21 years = $ 606.28

The TV set costs $ 606.28 in 2020.

<u>The exponential model is: Cost after n years = 400 * (1 + 0.02)ⁿ</u>

8 0
3 years ago
Laura buys an unfair coin online. The coin is supposed to land heads up 75% of the time. If this is true, what is the
Archy [21]

Answer:

C . (0.75) 15  x  (0.25) 5

Step-by-step explanation:

Took the assignment in edge, it’s right

Its based off of the rule P(A and B) = P(A) x P(B) from multiplication rule for independent events.

4 0
3 years ago
What is the answer for 16% of 150
liubo4ka [24]
Make an equation: x= 16% x 50 x= 16 50 ---- x ---- Cross Multiply 100 1 x= 16 ------ = 8
3 0
3 years ago
Read 2 more answers
Someone please help (show work)
Mnenie [13.5K]

Answer:

See answers below :)

Step-by-step explanation:

-2(2 - 5) + 10 + (-5) =

-2(-3) + 10 - 5 =

6 + 10 - 5 =

11

8 - 2(9 - 5)^2 - 1 =

8 - 2(4)^2 - 1 =

8 - 2(16) - 1 =

8 - 32 - 1 =

-25

8 0
3 years ago
Is 1% of 180 greater than or less than 2?
Marianna [84]
It’d be 1.8 so less than two
3 0
2 years ago
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