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3 years ago

Chapter 5 lesson 5.1 2nd grade

Mathematics

2 answers:

dangina [55]3 years ago

6 0

Answer:

What is the question?yea

Step-by-step explanation:

astraxan [27]3 years ago

4 0

What is the question?

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The lengths of nails produced in a factory are normally distributed with a mean of 3.34 centimeters and a standard deviation of

Shtirlitz [24]

Answer:

3.47 and 3.21

Step-by-step explanation:

Let us assume the nails length be X

$X \sim N(3.34,0.07^2)$

Value let separated the top 3% is T and for bottom it would be B

$P(X < T)= 0.97$

Now converting, we get

$P(Z < \frac{T-3.34}{0.07})= 0.97$

Based on the normal standard tables, we get

$P(Z < 1.881)= 0.97$

Now compare these two above equations

$\frac{T-3.34}{0.07} = 1.881 \\\\ T = 1.881 \times 0.07 + 3.34 \\\\ = 3.47$

So for top 3% it is 3.47

Now for bottom we applied the same method as shown above

$P(Z < \frac{B-3.34}{0.07})= 0.03$

Based on the normal standard tables, we get

$P(Z < -1.881)= 0.03$

Now compare these two above equations

$\frac{B-3.34}{0.07} = -1.881$

$= -1.881 \times 0.07 + 3.34 \\\\ = 3.21$

hence, for bottom it would be 3.21

7 0

3 years ago

HELP PLEASE ASAP!!! 50 points

neonofarm [45]

Answer:

(a+b,c)

Step-by-step explanation:

Note that the midpoint formula is:

$(\frac{x_{1} +x_{2}}{2}, \frac{y_{1} +y_{2}}{2})$

Point A (0,0) and Point C (2a+2b,2c)

It follows that:

$(\frac{(2a+2b +0}{2}, \frac{2c+0}{2})\\(\frac{(2(a+b)}{2}, \frac{2c}{2})\\\\(a+b,c)$

3 0

3 years ago

Read 2 more answers

-5/6 x=-3 will give Brainly

Gwar [14]

Answer:

x = 18/5

Step-by-step explanation:

-5/6 x=-3

Multiply each side by -6/5

-6/5 *-5/6 x=-3*-6/5

x = 18/5

7 0

4 years ago

Read 2 more answers

What is the answer to 7+4p-6

katovenus [111]

1+4p

the answer cant be simplified any further than this.

4 0

3 years ago

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0<br> x+y- 2x +284 +18120<br> The answer

Ganezh [65]

Answer:

doint know yup

Step-by-step explanation:

8 0

3 years ago