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3 years ago

In each case, use the digits 1 to 9 at most one time each.

Mathematics

1 answer:

krok68 [10]3 years ago

8 0

Answer:

Hello,

$x^{11} = x^{3} x^{8} = x^{2} x^{4} x^{5}$

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Niccola travels at an average speed of 40 mph for 50 miles.

sweet [91]

Answer:

36.67 [mile/hour].

Step-by-step explanation:

1) use the formula: V=S/t, where S - entire jorney, v - average speed (required to calculate), t - elapsed entire time.

2) according to the formula above S=50+60=110 miles; t= 50/40 + 1.75=1.25+1.75=3 hours.

3) after the substitutuion 110 and 3 into the formula above:

v=110/3≈36.67 miles/h.

7 0

2 years ago

Factor the mn+5m-3n-15

neonofarm [45]

The factor of mn+5m-3n-15 is 6m-4n-15.

3 0

3 years ago

Solve. 8 1 7 3*+ 3x = 4 + x 3 The value of x is What is the value of x ?

nadya68 [22]

Answer:

I got 1/2 one half..

Step-by-step explanation:

7 0

2 years ago

Simplify -|-5+2| A. -7 B. -3 C. 3 D. 7

musickatia [10]

Answer:

the correct anwser is -3 and if you need anymore help the website i use is

Step-by-step explanation:

https://www.tiger-algebra.com

6 0

3 years ago

Read 2 more answers

A test consists of 10 true/false questions. To pass the test a student must answer at least 88 questions correctly. If a student

Zanzabum

Answer:

The probability that the student is going to pass the test is 0.0545

Step-by-step explanation:

The variable that says the number of correct questions follows a Binomial distribution, because there are n identical and independent events with a probability p of success and a probability 1-p of fail. So, the probability of get x questions correct is:

$P(x)=\frac{n!}{x!(n-x)!} *p^{x} *(1-p)^{n-x}$

Where n is equal to 10 questions and p is the probability of get a correct answers, so p is equal to 1/2

Then, if the student pass the test with at least 8 questions correct, the probability P of that is:

P = P(8) + P(9) + P(10)

$P=(\frac{10!}{8!(10-8)!}*0.5^{8}*(0.5)^{10-8})+(\frac{10!}{9!(10-9)!} *0.5^{9} *(0.5)^{10-9})+(\frac{10!}{10!(10-10)!} *0.5^{10} *(0.5)^{10-10})$

P = 0.0439 + 0.0097 + 0.0009

P = 0.0545

8 0

3 years ago