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ANEK [815]
2 years ago
6

Will give 30 points and Brainliest!!!!

Mathematics
1 answer:
Sonja [21]2 years ago
7 0

Answer:

398

Step-by-step explanation:

20x19=380

20 is the 19/20 seats and the first row is 18 so you are gonna add 2 with the first row and have 20 for the rest of the rows other than the first one

19 is the 19 out of the 20 rows of seats and the last row is the one that has 18 seats

Once you get 380, you are gonna add the first row of seats which is 18 and you are gonna get 398

Hope I helped you

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Answer:

The probability that the customer is charged incorrectly on at most 2 items is 3.979 × 10⁻².

Step-by-step explanation:

To solve the question, we note that we proceed with the binomial distribution formula as follows

Number of times the customer is incorrectly charged out of ever 10 items = 4

Therefore, the probability that the customer is incorrectly charged is 4/10 = 0.4

That is p(incorrect) = 0.4

Then the probability that the customer is charged incorrectly on at most 2 items is

P(x≤2) = P(x=0) + P(x=1) + P(x=2)

          = ₙC_r × p^r×q^{(n-r)} =

        P(x=0)   = ₁₄C₀ ×0.4⁰× 0.6¹⁴ =  7.836 × 10⁻⁴

        P(x=1)   =  ₁₄C₁ ×0.4¹× 0.6¹³ =  7.314 × 10⁻³

       P(x=2)  =   ₁₄C₂ ×0.4²× 0.6¹² =  3.169 × 10⁻²

∴ P(x≤2) = 7.836 × 10⁻⁴ + 7.314 × 10⁻³ + 3.169 × 10⁻² = 3.979 × 10⁻²

       P(x≤2) = 3.979 × 10⁻².

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3 years ago
Write a linear equation with the slope=1 and y intercept=15000
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Y=mx+b
Y=x+15000 OR Y=1x+15000
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3 0
3 years ago
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A prop for a school play is a sphere that will be hung from the ceiling. The surface area of the sphere is 5 024 cm'. If the sur
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Answer:

The radius of the sphere, to the nearest cm:

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Step-by-step explanation:

The surface area of a sphere is given by the formula

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Given

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The radius of the sphere can be determined such as

A\:=\:4\pi r^2

r\:=\:\frac{1}{2}\sqrt{\frac{A}{\pi }}

Plug in Surface Area of sphere =  5024, π = 3.14 in the formula

\:r\:=\:\frac{1}{2}\sqrt{\frac{5024}{3.14}}\:\:

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Therefore, the radius of the sphere, to the nearest cm:

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2 years ago
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Speed of the panda = P

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Thus, The panda and the giraffe are approaching each other at a rate

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<em>Hope it helps :)</em>

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Answer:

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53.00 × 0.85 = 45.05

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