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Tomtit [17]
3 years ago
9

What is the product of a+3 and −2a2+15a+6b2?

Mathematics
2 answers:
son4ous [18]3 years ago
8 0

Answer:

c

Step-by-step explanation:

Elodia [21]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Given

(a + 3)(- 2a² + 15a + 6b²)

Each term in the second factor is multiplied by each term in the first factor, that is

a(- 2a² + 15a + 6b²) + 3(- 2a² + 15a + 6b²) ← distribute both parenthesis

= - 2a³ + 15a² + 6ab² - 6a² + 45a + 18b² ← collect like terms

= - 2a³ + 9a² + 45a + 6ab² + 18b²

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the probability that a student has a Visa card (event V) is .65 The probability that a student has a mastercard (event M) is .20
Pepsi [2]

The probability that a student has either a vise card or a master card is: 0.72

Step-by-step explanation:

Given that

Probability that a student has a vise card = P(V) = 0.65

Probability that a student has a master card = P(M) = 0.20

Probability that a student has both = P(V∩M) = 0.13

We have to find the probability of V OR M

The probability is given by:

P(V\ or\ M) = P(V) + P(M) - P(V\ and\ M)

Putting the values,

P(V\ or\ M) = 0.65+0.20-0.13\\P(V\ or\ M) = 0.72

Hence,

The probability that a student has either a vise card or a master card is: 0.72

Keywords: Probability, Events

Learn more about probability at:

  • brainly.com/question/4522984
  • brainly.com/question/4550858

#LearnwithBrainly

5 0
3 years ago
Show work, for extra Brainly, elementary work, multiplying unit fractions by whole numbers
Wewaii [24]

Answer:

2 1/4

Step-by-step explanation:

Number 1 is incorrect because 1/4 x 9 is 2 1/4 not 1 1/4.

To multiply fractions, multiply directly across. So multiply 1/4 x 9/1 to get 9/4 which converted into a mixed number is 2 1/4.

5 0
2 years ago
You randomly choose a letter A, and do not replace it. Then, you choose another letter A. What is the probability that both lett
GarryVolchara [31]
You made the choice to choose the letter A, a second time.
3 0
3 years ago
Can Somebody Please Help
Free_Kalibri [48]

Answer:

We have to put the data for purchased item in a frequency table.

Step-by-step explanation:

The diagram is attached below.

Firstly we have to see that how many customers fall under range 0 to 5.

Then 5 to 10.

Then 10 to 15.

Finally

15 to 20.

If we go through the items purchased by customers we can see that item ranges from 0 to 5 have 4 customers.

Item purchased range from 5 to 10 have 2 customers.

Item purchased range from 10 to 15 have 7 customers.

Item purchased range from 15 to 20 have 1 customers.

Total number of customers = 14

As we have total 14 number of customers and they have varied quantity of items purchased.

6 0
3 years ago
A line passes through the two given points. Is it vertical , horizontal ,or neither ? (8, 3), (8, -4) Vertical Horizontal Neithe
fredd [130]
Vertical.

the x value its the same for both, so you are going to the same point before moving up or down for the y value.
3 0
2 years ago
Read 2 more answers
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