2 years ago

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Mathematics

1 answer:

My name is Ann [436]2 years ago

7 0

Answer:

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Step-by-step explanation:

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The weights of certain machine components are normally distributed with a mean of 8.04 g and a standard deviation of 0.08 g. Fin

NISA [10]

Answer:

The bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

Step-by-step explanation:

We are given that

Mean, $\mu=8.04 g$

Standard deviation, $\sigma=0.08g$

We have to find the two weights that separate the top 3% and the bottom 3%.

Let x be the weight of machine components

$P(Xx_2)=0.03$

$P(X$

=0.03

From z- table we get

$P(Z1.88)=0.03$

Therefore, we get

$\frac{x_1-8.04}{0.08}=-1.88$

$x_1-8.04=-1.88\times 0.08$

$x_1=-1.88\times 0.08+8.04$

$x_1=7.8896$

$\frac{x_2-8.04}{0.08}=1.88$

$x_2=1.88\times 0.08+8.04$

$x_2=8.1904$

Hence, the bottom 3 is separated by weight 7.8896 g and the top 3 is separated by weight 8.1904 g.

5 0

2 years ago

Yolanda needs 5 pound of ground beef to make lasagna for a family reunion. one package of ground beef weighs weighs 2 1/2 pounds

kap26 [50]

2 1/2 + 2 3/5 =
2 5/10 + 2 6/10=
4 11/10 = 5 1/10

5 1/10 - 5 = 1/10

1/10 lb left over

4 0

3 years ago

Which sentence does not belong with the other 3?

attashe74 [19]

D, there is no division property of equality

7 0

3 years ago

dollars of a Class party is 59 + 13 in where in is the number of people attending what is the cost for 44 people

Alina [70]

Plug in 44
so
59+13(44) = 631

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3 years ago

How do you solve for X ax-x=c

MArishka [77]

Factor out the "x" and you'll have:
$x(a-1) =c \qquad /:(a-1) \\ x=\frac{c}{a-1} \qquad \qquad a\neq 1$

8 0

2 years ago