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Veseljchak [2.6K]
3 years ago
12

In 1985, there were 285 cell phone subscribers in the small town of Centerville. The number of subscribers increased by 75% per

year after 1985. How many cell phone subscribers were there in Centerville in 1995?
Mathematics
1 answer:
elena-s [515]3 years ago
5 0
22.02............................................................................
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Help me out with the following?
Nookie1986 [14]

Answer:

The answer is A.

Step-by-step explanation:

1/2 (2x+6)>4

1x+3>4

1x>1

x>1

3 0
3 years ago
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(CO 3) On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 6.1 inches. Find the probabi
ololo11 [35]

Answer:

C. Probability is 0.90, which is inconsistent with the Empirical Rule.

Step-by-step explanation:

We have been given that on average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 6.1 inches.

First of all, we will find z-score corresponding to 87.5 and 107.5 respectively as:

z=\frac{x-\mu}{\sigma}

z=\frac{87.5-97.5}{6.1}

z=\frac{-10}{6.1}

z=-1.6393

z\approx-1.64

z=\frac{x-\mu}{\sigma}

z=\frac{107.5-97.5}{6.1}

z=\frac{10}{6.1}

z=1.6393

z\approx 1.64

Now, we need to find the probability P(-1.64.

Using property P(a, we will get:

P(-1.64

From normal distribution table, we will get:

P(-1.64

P(-1.64

P(-1.64

Since the probability is 0.90, which is inconsistent with the Empirical Rule, therefore, option C is the correct choice.

6 0
3 years ago
Carrie biked 75 miles in 3 days.
allsm [11]

Answer:

25 miles a day

Step-by-step explanation:

75 divided by 3 is 25

5 0
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Evaluate the function below for x = 4.<br> F(x) = x3 + 2x2 + 1
pav-90 [236]

Answer:

77

Step-by-step explanation:

Plug in:

F(4) = (4)3 + 2(4)2 + 1

F(4) = 12 + (8)^2 + 1

F(4) = 12 + 64 + 1

F(4) = 77

(assuming 2x2 = 2x squared)

4 0
3 years ago
Multiply or divide as indicated. Y^-9•y^-8•y^10
BabaBlast [244]

Answer:

1 / y^7

Step-by-step explanation:

Y^-9•y^-8•y^10

= y^10 / y^9•y^8

= y^10 / y^17

= 1 / y^7

8 0
3 years ago
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