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2 years ago

A and B represent whole numbers, and A▯B means A² + B² - 2AB. What is the value of 9▯(5▯2)?

Mathematics

1 answer:

andreev551 [17]2 years ago

3 0

It’s 54 because I did the math to get the answer

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A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of t

Alexxandr [17]

Answer: A. 0.20

Step-by-step explanation:

Let A be the event of employees needed corrective shoes and B be the event that they needed major dental work .

We are given that : $P(A)=0.08\ ;\ P(B)=0.15\ ;\ P(A\cap B)=0.03$

We know that $P(A\cup B)=P(A)+P(B)-P(A\cap B)$

Then, $P(A\cup B)=0.08+0.15-0.03= 0.20$

Hence, the probability that an employee selected at random will need either corrective shoes or major dental work : $P(A\cup B)= 0.20$

hence, the correct option is (A).

6 0

3 years ago

David rolls a die and spins the spinner.

CaHeK987 [17]

A. 1/5

are the right i think

6 0

3 years ago

A seventh-grade teacher asks her students a survey question. Which questions are appropriate for the teacher to ask her

zzz [600]

Answer:

How many hours of sleep do you get per night?

On average, how long does it take you to complete your homework?

What time do you leave for school in the morning?

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

PLZ HELP ME QUICK AT THIS MATH PROBLEM QUICK

sukhopar [10]

Answer:

1. 30 houses were analyzed

2. 24 houses

3. 21 houses

4. Bimodal skewed right? IDK sorry :(

5. 15 houses

6. The fourth interval (151-200)

Sorry if this is wrong... Hope it helps!

Step-by-step explanation:

4 0

3 years ago

one pound of swordfish costs as much as 1.5 pounds of salmon. Mrs. O pays $39 for 2 pounds of salmon and 3 pounds of swordfish.

Alex73 [517]

Answer:

Not sure which ratio you need, but 6/9 = 2/3

Step-by-step explanation:

1.5xsalmon=swordfish

$39 = 2lb salmon and 3lb swordfish

1lb salmon=$6 6+6 = 12

1lb swordfish=$9 9+9+9 = 27

12+27 = 39

6 0

2 years ago