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3 years ago

How does a digit in the ten thousands place compare to a digit in the thousands place ?

Mathematics

1 answer:

olga2289 [7]3 years ago

6 0

Ten thousands place is 10 times bigger than thousands place

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A hardware store receives a shipment of bolts that are supposed to be 12 cm long. The mean is indeed 12 cm, and the standard dev

Yuliya22 [10]

Answer: 0.9104

Step-by-step explanation:

Given : A hardware store receives a shipment of bolts that are supposed to be 12 cm long.

Mean : $\mu=12\text { cm}$

Standard deviation : $\sigma= 0.2\text{ cm}$

Sample size : n=10

Since, they will declare the shipment defective and return it to the manufacturer if the average length of the 100 bolts is less than 11.97 cm or greater than 12.04 cm.

So for the shipment to be satisfactory, the length of the bolts must be between 11.97 cm and 12.04 cm.

We assume that the length of the bolts are normally distributed.

Let X be the random variable that represents the length of randomly picked bolt .

For Z score : $z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x = 11.97

$z=\dfrac{11.97-12}{\dfrac{0.2}{\sqrt{100}}}=-1.5$

For x = 12.04

$z=\dfrac{12.04-12}{\dfrac{0.2}{\sqrt{100}}}=2$

By using the standard normal distribution table , the probability that the shipment is found satisfactory will be :-

$P(511.97$

Hence, the probability that the shipment is found satisfactory=0.9104

3 0

3 years ago

Greer company pays jamal perry a salary of $2,200 per week. how much fica tax must greer pay on jamal's behalf, including both t

ludmilkaskok [199]

The fica tax rate from employer will be 7.65 % of the salary.

= 7.65 % x $ 2,200

= $ 168.3

Multiply it by 52 if you want yearly number

4 0

3 years ago

Difference of two whole numbers is 33 and its ratio is 2:5 then find those<br> numbers.

S_A_V [24]

Answer:

Step-by-step explanation:

Let the two whole numbers be 5x and 2x then

by the question

5x - 2x = 33

3x = 33

x = 33/3

x = 11

Therefore the numbers are

5x = 5*11 = 55
2x = 2*11 = 22

hope it helps:)

8 0

3 years ago

4. A lampshade is in the shape of a cone. The radius iš 7 inches and the height 9

dsp73

Answer:

461.8

Step-by-step explanation:

V=(1/3) πr^2h

V=(1/3)π(7^2)9

V=461.8

Sorry inputed wrong in calculator first time

3 0

3 years ago

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4(3x+2)=4(2x+3)+4x how many solution are their

baherus [9]

Answer:

Step-by-step explanation:

0=4 ther is just one solution

7 0

3 years ago

Read 2 more answers