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3 years ago

PLEASE ANSWER ASAP

Mathematics

1 answer:

Natali [406]3 years ago

6 0

Maybe Option 2? Not really sure just trying to help

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No fewer than means

eimsori [14]

Answer:

Greater than or equal to, or D.

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2 years ago

Read 2 more answers

If x-4(x+2) = -15.5, what is the value of x?

lora16 [44]

Answer:

here's your answer

Step-by-step explanation:

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1 year ago

A coin is tossed 8 times. What is the probability of getting all heads? Express your answer as a simplified fraction or a decima

kumpel [21]

Answer:

The probability of getting all heads is $\frac{1}{256}$ .

Step-by-step explanation:

For each time the coin is tossed, there are only two possible outcomes. Either it is heads, or it is not. So we use the binomial probability distribution to solve this problem.

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.

In this problem, we have that:

A coin is tossed 8 times. This means that $n = 8$

In each coin toss, heads or tails are equally as likely. So $p = \frac{1}{2}$

What is the probability of getting all heads?

This is $P(X = 8)$

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

$[tex]P(X = 8) = C_{8,8}*(\frac{1}{2})^{8}*(1 - \frac{1}{2})^{0}$ = $\frac{1}{256}$

The probability of getting all heads is $\frac{1}{256}$ .

7 0

3 years ago

A robot can complete 6 tasks in 7/10 hour. Each task takes the same amount of time. a. How long does it take the robot to comple

Jlenok [28]

Answer:

7/60 hour or 7 minutes b) 8 or 8 4/7 depending if you consider a fraction of a task is yes or no

Step-by-step explanation:

6 0

2 years ago

Shining Star Preschool purchased a van for $38,000. Suppose MACRS allows vans to be depreciated fully in 6 years according to si

musickatia [10]

Answer:

The book value for the van at the end of first year will be $30400

Step-by-step explanation:

Cost of van = $38,000

Amount of depreciation after one year = 20%

Finding 20% of 38,000

=38,000 *(20/100)

= 7600

so, amount of van after 1 year = 38,000 - 7600

= 30400

So, the book value for the van at the end of first year will be $30400

3 0

3 years ago