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3 years ago

8th grade math, please help.

Mathematics

1 answer:

Anastasy [175]3 years ago

5 0

Answer:

V = 15/4π = 3.75π

Step-by-step explanation:

V=πr^2h

V=π(1/2^2)15

V=π(1/4)15

V=15/4π

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Write in standard form: (5×100)+(6×1)+(5×1/10)+(9×1/1000)

PIT_PIT [208]

Answer:

9,556

Step-by-step explanation:

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3 years ago

Jonathan is in a class of 15 boys and 35 girls.40%of the students in the class take the bus to school how many students do not t

sertanlavr [38]

40% of 40
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Answer is 24

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3 years ago

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A company that produces fine crystal knows from experience that 17% of its goblets have cosmetic flaws and must be classified as

Alex73 [517]

Answer:

0.3891 = 38.91% probability that only one is a second

Step-by-step explanation:

For each globet, there are only two possible outcoes. Either they have cosmetic flaws, or they do not. The probability of a goblet having a cosmetic flaw is independent of other globets. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

17% of its goblets have cosmetic flaws and must be classified as "seconds."

This means that $p = 0.17$

Among seven randomly selected goblets, how likely is it that only one is a second

This is P(X = 1) when n = 7. So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{7,1}.(0.17)^{1}.(0.83)^{6} = 0.3891$

0.3891 = 38.91% probability that only one is a second

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3 years ago

Logan's only debt obligations are a car loan payment of $512 and a credit card payment of $70 every month. What is the minimum a

Assoli18 [71]

The most used payment plan to avoid being in debt today is the 20% payment plan. In this payment , you divide your income into several parts.
20% for paying up debts, 10 % for savings, and 70% for everything else.

So, assuming that x is the minimum amount of money, we know that

$ 512 + $70 = 20% . X

$ 582 = 0.2 . x

$ 582 / 0.2 = x

x = $ 2910

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3 years ago

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Please help me I’m so lost !!!!

Tasya [4]

Answer:

$4095$