All categories

3 years ago

What is the best expression for 7/8 and 8 1/10

1 answer:

katrin2010 [14]3 years ago

4 0

7/8 is nearly 1, and 8 1/10 is obviously 8.1 (1/10), which is rounded to 8. So th expression that best estimates the products of those numbers is D, 1 * 8.

You might be interested in

The sum of three consecutive integers is 84. What are the three numbers?

Mashcka [7]

Answer:

they are 27, 28, and 29.

Step-by-step explanation:

7 0

2 years ago

A shipment of 50 precision parts including 4 that are defective is sent to an assembly plant. The quality control division selec

natali 33 [55]

Answer:

0.3968 = 39.68% probability this shipment passes inspection.

Step-by-step explanation:

The parts are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

50 parts means that $N = 50$

4 defective means that $k = 4$

10 are chosen, which means that $n = 10$

What is the probability this shipment passes inspection?

Probability that none is defective, so:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 0) = h(0,50,10,4) = \frac{C_{4,0}*C_{46,10}}{C_{50,10}} = 0.3968$

0.3968 = 39.68% probability this shipment passes inspection.

6 0

2 years ago

The floor of a rectangular room is 300 cm long and 180 cm wide. to carpet the floor? How many small tiles are needed

Vinvika [58]

The number of small tiles are needed is 300 tiles.

<h3>Number of tiles needed</h3>

Using area of rectangular formula

Area of the room = length(l) × breadth (b)

Area of the room=300 cm×180 cm

Area of the room=54,000 cm²

Number of tiles needed = Area of rectangular region / Area of one tile

Number of tiles needed=54,000/180

Number of tiles needed=300 tiles

Therefore the number of small tiles are needed is 300 tiles.

Learn more about number of tiles needed here:brainly.com/question/2136390

#SPJ1

4 0

2 years ago

I will give brainlest help plssss

Charra [1.4K]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Can you explain $2000-$1433

Sophie [7]

The answer would be $567

4 0

3 years ago

Read 2 more answers