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Mathematics

2 answers:

Zarrin [17]3 years ago

6 0

B is the answer I think

svet-max [94.6K]3 years ago

5 0

Answer:

a i think

Step-by-step explanation:

You might be interested in

You are making meat loaf with yield: 50, 4oz portions what is the total recipe cost

slamgirl [31]

Answer:

$200oz$

Step-by-step explanation:

The question says that there are $50$ portions that are $4oz$ each.

Write an equation

$(50)4oz$

Simplify

$200oz$

3 0

3 years ago

Simplify (x^-2y^6/x^-4y^8)1/2

AlexFokin [52]

Simplify the following:
(y^6 y^8)/((2 x^2)/(x^4))
Combine powers. (y^6 y^8)/((x^2×2)/x^4) = (y^(8 + 6) x^(4 - 2))/2:
(y^(8 + 6) x^(4 - 2))/2
8 + 6 = 14:
(y^14 x^(4 - 2))/2
4 - 2 = 2:
Answer: (y^14 x^2)/2

6 0

3 years ago

Empirical rule (statistics)Help please!!!

emmasim [6.3K]

The empirical rule you're referring to is the 68-95-99.7 rule, which asserts that for a normal (bell-shaped) distribution, approximately 68% of the distribution lies within 1 standard deviation of the mean; 95% lies within 2 standard deviations of the mean; and 99.7% lies within 3 standard deviations of the mean.

Let $X$ be the random variable denoting vehicle speeds along this highway. We want to find $P(61$ . To use the rule, we need to rephrase this probability in terms of the mean and standard deviation.

Notice that $61=70-9=70-3\cdot3$ , and $79=70+9=70+3\cdot3$ . In other words, 61 and 79 both lie exactly 3 standard deviations away from the mean, so $P(61$ .