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3 years ago

I need help with my little brothers homework?

Mathematics

2 answers:

erik [133]3 years ago

7 0

I only did the first part but maybe later I will solve the rest too. If there are any errors but tell me so I can update the pic.

olya-2409 [2.1K]3 years ago

3 0

2. There is 10 different strings
3. I think you need to draw out the string lengths and then your done :)

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What is 15% of 140 ?

igomit [66]

140 * 0.15 = 21

15% of 140 is 21

6 0

3 years ago

Read 2 more answers

A job fair was held at the Student Union. 25% of the students who attended received job offers. Of all of the students at the jo

vovangra [49]

Answer:

A) Both events are not independent.

B) Both events are not mutually exclusive

C) 8.33%

D) 80%

Step-by-step explanation:

A) Both events are not independent. This is because, If B occurs it means that it is very likely that J will occur as well.

B) Both events are not mutually exclusive. This is because it is possible for both events J and B to occur at the same time.

C) we want to find the probability that Joe who is not a business student will receive the job offer.

This is;

P(J|Not B) = P(J & Not B)/P(Not B)

Now,

P(J & Not B) = P(J) – (P(B) × P(J | B))

25% of the students who attended received job offers. Thus; P(J) = 0.25

40% were from the College of Business. Thus;

P(B) = 0.4

Among the business students, 50% received job offers. Thus;

P(J|B) = 0.5

Thus;

P(J & Not B) = 0.25 - (0.4 × 0.5)

P(J & Not B) = 0.25 - 0.2

P(J & Not B) = 0.05

Since P(B) = 0.4

Then, P(Not B) = 1 - 0.4 = 0.6

Thus;

P(J|Not B) = 0.05/0.6

P(J|Not B) = 0.0833 = 8.33%

D) This probability is represented by;

P(B | J) = P(B & J)/P(J)

P(B & J) = (P(B) × P(J | B)) = (0.4 × 0.5) = 0.2

P(B | J) = 0.2/0.25

P(B | J) = 0.8 = 80%

5 0

3 years ago

What is the constant in the algebraic expression to represent the patter below??

Hitman42 [59]

Answer:

The constant in the algebraic expression to represent the pattern below is 4.

Step-by-step explanation:

Imortant Tip:

An Arithmetic sequence has a constant difference 'd' which can be determined by computing the differences of all the adjacent terms

Given the pattern

$15,11,7,3,-1,...$

computing the differences of all the adjacent terms

$11-15=-4,\:\quad \:7-11=-4,\:\quad \:3-7=-4,\:\quad \:-1-3=-4$

The difference between all the adjacent terms of the pattern is the same which is

$d=-4$

Hence, the given pattern represents the Arithmetic sequence.

Therefore, the constant in the algebraic expression to represent the pattern below is 4.

8 0

3 years ago

Can you answer the attached question which includes the options to answer?

Gekata [30.6K]

2 and 4 are both correct statements.

4 0

3 years ago

What would this problems answer be ?12y=2 1\4

mafiozo [28]

Answer:

Step-by-step explanation:12y ×4 =21

48y=21

Y=0.44

Mark brainlest if correct pls

5 0

3 years ago