The question is somewhat confusing but assuming you mean where the submarine is after moving up 7 meters then down 38 meters the submarine would now be located 56 meters below sea level

7 0

3 years ago

Assume that for a particular tire brand, the probability of wearing out before 30,000 miles is 0.25. For someone who buys a set

Hatshy [7]

Answer:

The probability that all will last at least 30,000 miles is 0.3164.

Step-by-step explanation:

Consider the provided information.

For a particular tire brand, the probability of wearing out before 30,000 miles is 0.25. Someone who buys a set of four of these tires,

That means the probability of not wearing out is 1-0.25 = 0.75

Now use the binomial distribution formula.

$^nC_r (p^{n-r})(q^r)$

Substitute p = 0.25, q=0.75, r=4 and n=4

$^4C_4 (0.25)^{4-4}(0.75)^4$

$1 \times 0.75^4$

$0.3164$

The probability that all will last at least 30,000 miles is 0.3164.

8 0

4 years ago

Simplify the expression below. show your work. -(-7y+12)

Ray Of Light [21]

$-(-7y+12) = 7y -12$

4 0

3 years ago

Question in attached file

Dovator [93]

13 is C, √10
Rational numbers are numbers that can be expressed as a ratio, or a fraction.

14 is C, 9.5 × 10^5

7 0

3 years ago