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3 years ago

Is the graph of g(x) =x2 - 1

Mathematics

1 answer:

IRISSAK [1]3 years ago

3 0

Cancel the 2 to get x then x-1 divided by x

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What is 4x^2-1/ (x+4) (2x-1) simplified

Nadusha1986 [10]

Answer:

Step-by-step explanation:

$\frac{4x^2 - 1}{(x+4)(2x-1)} = \frac{(2x)^2 - (1)^2}{(x+4)(2x-1)}$

$=\frac{(2x-1)(2x+1)}{(x+4)(2x-1)}\\\\=\frac{2x+1}{x+4}$

5 0

3 years ago

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A can of soda weighs 336 grams. find the weight in kilograms of 22 cans.

Verizon [17]

Answer:7,392,000

Step-by-step explanation:

There are 1000 milligrams in 1 gram. Multiple 1000 by 336 (getting 336000), then multiple 336000 by number of cans (22)

6 0

4 years ago

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Cameron invests $10800 in two different accounts. The first account paid 3 %, the second account paid 13 % in interest. At the e

Nadusha1986 [10]

Answer:

5400

Step-by-step explanation:

16%-904

1%-904 divided by 16 is= to 56.5

10800 divided by 2 is = to $5400

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4 years ago

How do you find decimals on a number line

aalyn [17]

To find the decimals you would have to picture that each of the little lines on the number line are points, for example.

In between 8 and 9, there are 9 lines. The first line would be 8.10, then 8.20, 8.30, and so on...

7 0

3 years ago

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A scooter travels 18 miles in the same time a bike covers 8 miles. If the rate of the scooter is two miles per hour than twice t

blsea [12.9K]

<u>ANSWER: </u>

A scooter travels 18 miles in the same time a bike covers 8 miles.The rates of both scooter and bike are 8 miles per hour and 18 miles per hour

<u>SOLUTION: </u>

Given, a scooter travels 18 miles in the same time a bike covers 8 miles.

The rate of the scooter is two miles per hour than twice the rate of the bike

We need to find both rates of scooter and bike.

Let the speed of scooter be x and speed of bike be y.

And, time taken to travel be t.

Then, for scooter:

$\bold{distance = speed \times time}$

$18 = x \times t$

$t=\frac{18}{x}$ --- (1)

For bike:

$\bold{distance = speed \times time}$

$8=y \times t$

$\mathrm{t}=\frac{8}{y}$ --- (2)

Now, equate both (1) and (2)

$\frac{18}{x}=\frac{8}{y}$

On cross-multiplication we get

18y = 8x

4x – 9y = 0 ---- (3)

We also know that, rate of the scooter is two miles per hour than twice the rate of the bike.

x = 2 + 2y ---- (4)

Now substitute (4) in (3)

4(2 + 2y) – 9y = 0

8 + 8y – 9y = 0

9y – 8y = 8

y = 8.

Again substitute y value in (4)

x = 2 + 2(8) = 2 + 16

x = 18.

Hence, the rates of both scooter and bike are 8 and 18 miles per hour

8 0

4 years ago