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2 years ago

Here is another math question that i need help on Please

Mathematics

2 answers:

aleksandrvk [35]2 years ago

4 0

He built 15 robots (4 + 8 + 3) = 15
he built an average of 5 robots per day....(4 + 8 + 3) / 3 = 15/3 = 5

nexus9112 [7]2 years ago

3 0

Lucca build a total of 15 robots

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Find the probability of selecting none of the correct six integers in a lottery, where the order in which these integers are sel

serious [3.7K]

Complete Questions:

Find the probability of selecting none of the correct six integers in a lottery, where the order in which these integers are selected does not matter, from the positive integers not exceeding the given integers.

a. 40

b. 48

c. 56

d. 64

Answer:

a. 0.35

b. 0.43

c. 0.49

d. 0.54

Step-by-step explanation:

(a)

The objective is to find the probability of selecting none of the correct six integers from the positive integers not exceeding 40.

Let s be the sample space of all integer not exceeding 40.

The total number of ways to select 6 numbers from 40 is $|S| = C(40,6)$ .

Let E be the event of selecting none of the correct six integers.

The total number of ways to select the 6 incorrect numbers from 34 numbers is:

$|E| = C(34,6)$

Thus, the probability of selecting none of the correct six integers, when the order in which they are selected does rot matter is

$P(E) = \frac{|E|}{|S|}$

$= \frac{C(34, 6)}{C(40, 6)}\\\\= \frac{1344904}{3838380}\\\\=0.35$

Therefore, the probability is 0.35

Check the attached files for additionals

8 0

2 years ago

The veterinarian weighed Oliva's new puppy, Benz, on a defective scale.

Mrrafil [7]

Answer:

$\boxed{x = 10.28 \%}$

Step-by-step explanation:

$\frac{(26.75)x}{100} = 2.75 \\ \boxed{x = 10.280373832}$

5 0

2 years ago

Write a word problem that involves combining three equal groups

ipn [44]

Combining three equal groups means that we will mainly depend on multiplying the quantity by 3 to get the total

Examples are shown below:
1- Mrs Nadia teaches three classes. Each class has 25 student. How many students does Mrs Nadia teach in total?
In this problem we will be combining three equal groups of students where each group has 25 students, therefore:
Total number of students = 3 * 25 = 75 students

2- John has three bags of candies. Each bag contains 10 pieces of candies. How many candies does John has?
In this problem we will be combining three equal groups of candies where each group has 10 pieces, therefore:
Total number of candies = 3 * 10 = 30 candies

Hope this helps :)

7 0

3 years ago

Read 2 more answers

What is the percent decrease from 16 to 12?

galina1969 [7]

Answer:

25%

Step-by-step explanation:

8 0

2 years ago

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Find the sum 51/3+(22/3+11/3)