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3 years ago

Solve these two by using factor the polynomial by grouping

Mathematics

1 answer:

Kruka [31]3 years ago

3 0

Answer:

15. (8x^3 + 27)(x + 1)

17. (x^2 + 3)(x + 2)

Step-by-step explanation:

8x^3(x + 1) + 27(x + 1)

x^2(x + 2) + 3(x + 2)

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a music store sold 10 to the 3rd power CDs and 10 to the second power CD players if each CD cost $12 and each CD player cost $35

Lynna [10]

Hello keirabug, I am here to answer your question:

Since 10^3 is the same as 10*10*10, or 1000, and each CD is worth 12$, then 1000 * 12$ is equal to 12000$

But for the CD players, it's 10^2 or 10*10, which gives us 100, and each CD player is worth 35$, so 100 * 35$ is equal to 3500$

And then we do an addition to add the prices like this: 12000$ + 3500$ = 15500$

So the answer is 15500$

Hope this helped you!

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4 years ago

A lawyer drives from her home, located 15 miles east and 28 miles north of the town courthouse, to her office, located 6 miles w

natali 33 [55]

Answer:

Step-by-step explanation:

I know the answer is 26 miles but I cannot figure out how they came up with that answer using the distance formula.It looks like you need to find the shortest distance (as the crow flies) between the home and the office.

Use the Pythagorean Theorem.

6^2 + 10^2 = c^2

136 = c^2

11.67 = c

4^2 + 14^2 = c^2

212 = c^2

14.56 = c

11.67 + 14.56 = 26.2 = 26 miles

4 0

3 years ago

What is the value of x in the equation 3 x minus 4 y equals 65, when y equals 4?

netineya [11]

Answer:27

Step-by-step explanation:

9 0

4 years ago

Read 2 more answers

There are 11 teachers and 132 students at a middle school. What is the ratio of teachers to students

Evgesh-ka [11]

1:12 is the ratio of teachers to zstudents

4 0

3 years ago

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PLEASE HELP :( WORTH 20 PIONTS I WILL MARK BRAINLIEST please answer honestly :)

hodyreva [135]

Answer:

A and C

Step-by-step explanation:

From the table the value of f(x) when x = - 1 is 6

Thus f(- 1) = 6 ← is true

From the table the value of f(x) when x = 5 is 12

Thus f(5) = - 2 ← is false

The domain is the values of x from the table ( the input values )

domain is { - 2, - 1, 0, 1, 2, 3, 4, 5, 6 } ← is true

The range is the values of f(x) from the table ( the output values

range is { 5, 6, 7, 8, 9, 10, 11, 12, 13 }

The range for f(x) is all real values ← is false

8 0

3 years ago