4 years ago

WILL GIVE BRAINLIEST

Mathematics

1 answer:

Bad White [126]4 years ago

8 0

It would be an acute isosceles triangle

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Find the distance between b and d

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Answer: 15

Step-by-step explanation:

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3 years ago

Assume that 13% of people are left-handed. If we select 10 people at random, answer the following questions:

Anastasy [175]

Answer:

0.099, 0.969,0.87,8.3.1.063

Step-by-step explanation:

Let X be the left handed people in the sample of 10 people selected.

X is binomial with n=10 and p = 0.13

a) the probability that there are exactly 3 lefties in the group

= $P(x=3) = 10C3 (0.13)^3 (0.87)^7\\= 0.09945\\=0.099$

b) the probability that there are at least 3 lefties in the group

= $P(X\geq 3) =0.9687\\=0.969$

Now Y number of right handers is binomial with n =10 and p = 0.87

c) the expected number of right-handers in the group.

$=E(Y) = np\\= 10(0.83)\\=8.3$

d) the standard deviation of the number of right-handers in the group

= $\sigma Y = \sqrt{npq} \\=1.063485\\=1.063$

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3 years ago

Which table represents a direct variation function?

ziro4ka [17]

Xy
-5.510
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3 years ago

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Arianna correctly simplified an expression. When she substituted mc020-1. Jpg into the simplified expression, the value was â€"4

9966 [12]

Answer:

value was â€"4. Which could be Ariannaâ€™s original expression? One-sixth (negative 3 x minus 24) One-sixth (negative 5 x minus 8) One-sixth (negative 10 x minus 4) One-sixth (negative 12 x minus 16).

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You read online that a 15 ft x 20 ft brick patio would cost about $2,275 to have professionally installed. Estimate the cost of

Kaylis [27]

Answer:

4500 to 4750

Step-by-step explanation:

2275/300 ≈ 7.5 7.5•621 ≈ 4650

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4 years ago