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3 years ago

10-3(2x-6)-4x PLEASEE HELPP!

Mathematics

1 answer:

IgorLugansk [536]3 years ago

5 0

-10x+28

first you must distribute -3

then you combine like terms and you end up with -10×+28

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Determine the horizontal asymptote for r(x) = x^3-2x^2+3 / x-2, if one exists.

Sauron [17]

There is no horizontal asymptote.

8 0

4 years ago

Read 2 more answers

While Brendan is vacationing with his family at the cabin, they take a motorboat on the river. The motorboat travels

taurus [48]

Part 1: The speed of the boat traveling downstream is $(18+w)$ miles per hr.

The speed of the boat traveling upstream is $(18-w)$ miles per hr.

Part 2: The speed of the current is 4 miles per hour.

Explanation:

Part (1): The motorboat travels 18 miles per hour in still.

Let w represents the speed of the current.

When the boat travels downstream, the speed of the current will get added to the speed of the boat.

Thus, the expression can be written as $(18+w)$ miles per hr

Hence, the speed of the boat traveling downstream is $(18+w)$ miles per hr.

When the boat travels upstream, the speed of the current will get subtracted to the speed of the boat.

Thus, the expression can be written as $(18-w)$ miles per hr.

Hence, the speed of the boat traveling upstream is $(18-w)$ miles per hr.

Part (2): The boat travels 49 miles upstream in the same time it takes to travel 77 miles downstream.

The distance formula is given by $distance $=$ speed $\times$ time$

Substituting, we have,

$49=(18-w)t\\49=18t-wt$ ---------------(1)

$77=(18+w)t\\77=18t+wt$ ---------------(2)

Solving using elimination method,

$49=18 t-w t\\77=18 t+w t\\-------\\126=36t$

Dividing both sides by 36, we have,

$t=3.5$

Substituting $t=3.5$ in $49=18 t-w t$ , we get,

$49=18(3.5)-w (3.5)\\$

$49=63-3.5w\\$

$-14=-3.5w\\$

$4=w$

Thus, the speed of the current is $w=4$ miles per hour.

5 0

4 years ago

-12.405 as mixed number in simplest form

Gnom [1K]

Answer: I think the answer is -12 81/200 ( please let me know if this answer is wrong )

6 0

3 years ago

The length of the entire border of the Unites States is approximately 32,000 miles, 5 8 of which is coastline. How long is the c

Aleksandr [31]

Answer:the coastline is 20000 miles.

The land boundaries are 12000 miles.

Step-by-step explanation:

The length of the entire border of the Unites States is approximately 32,000 miles.

5/8 of the entire length is the coastline. It means that the length of the coastline of the U.S would be

5/8 × 32000 = 20000 miles.

Therefore, the length of the boundaries of the US would be

32000 - 20000 = 12000 miles.

7 0

4 years ago

31 Points to answer this question, Thanks! Make sure to explain why and how you got it!

professor190 [17]

(-1,-2) would result in a relation that is no longer a function.

In the table, there's already x = -1 and y = -4. Function only gives a single y-value with x-value. If a single x-value gives two y-values then it'd not be Function.

If we add (-1,-2) in the table. The domain will be repetitive. Basically, we already have (-1,-4) and if we add (-1,-2) in the table, a single x-value will give TWO y-values which is not a function.

4 0

4 years ago