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ivanzaharov [21]

3 years ago

9

Total sales of Jewelry Inc. were $12,000,000 two years ago and $13,400,000 last year. If the same trend continues, what are sale

s likely to be this year to the nearest hundred thousand dollars?

1 answer:

goldfiish [28.3K]3 years ago

4 0

$14,800,000
The trend is +1,400,000

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aev [14]

The is The 103.8 Cause Of the math is correct

4 0

2 years ago

Find the volume of the cone shown below.

BlackZzzverrR [31]

Answer:

D

Step-by-step explanation:

The formula for volume of cone is $V=\frac{1}{3}\pi r^2 h$

Where

V is the volume

r is the radius of the circular base

h is the height of the cone

<em>In the diagram shown, we can clearly see that height is 12, radius is 9. We can simply plug them into the formula and get our exact answer (leaving pi as pi):</em>

<em> $V=\frac{1}{3}\pi (9)^2(12)\\=324 \pi$ </em>

<em />

<em>correct answer is D</em>

6 0

3 years ago

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g: Consider the following game. A coin is flipped. If it lands tails we stop playing and winnothing. If it lands heads we spin a

galben [10]

Answer:

E[W] = $25 (assuming the currency is in dollars)

Var(W) = 1041.67

Step-by-step explanation:

Probability of winning first starts with the coin toss.

For a win, the coin needs to land on heads.

Probability of that = 1/2 = 0.5

Then probability of winning any amount = 1/100 = 0.01

Total probability of winning any amount = 0.5 × 0.01 = 0.005

But expected value is given by

E(X) = Σ xᵢpᵢ

where xᵢ is each amount that could be won

pᵢ is the probability of each amount to be won and it is the same for all the possible winnings = 0.005

So,

E(W) = Σ 0.005 xᵢ

Summing from 0 to 100 (0 indicating getting a tail from the coin toss). This could be done with dome faster with an integral sign

E(W) = ∫ 0.005 x dx

Integrating from 0 to 100

E(W) = [0.005 x²/2]¹⁰⁰₀

E(W) = [0.0025 x²]¹⁰⁰₀ = 0.0025(100² - 0²) = 0.0025 × 10000 = $25

Variance is given by

Variance = Var(X) = Σxᵢ²pᵢ − μ²

μ = expected value

We calculate the expression, Σxᵢ²pᵢ which is another sum from 0 to 100

Σxᵢ²pᵢ = Σ 0.005xᵢ²

Σ 0.005 xᵢ² = ∫ 0.005 x² dx

Integrating from 0 to 100

∫ 0.005 x² dx = [0.005 x³/3]¹⁰⁰₀ = [0.1667x³]¹⁰⁰₀ = 0.1667(100³ - 0³) = 1666.67

Var(W) = 1666.67 - 25² = 1666.67 - 625 = 1041.67.

5 0

3 years ago

Q5. A farm raises cows and chickens. The farmer has a total of 42 animals. One day he counts the legs of all of his animals and

scZoUnD [109]

Answer:

let cow=x and chickens =y

cows have 4 legs, 4x. chickens have 2 legs, 2y

6 0

3 years ago

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(10+7)+30=47 what property is that?

chubhunter [2.5K]

17+30=47
47=47
That is the associative property of addition

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3 years ago

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