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dlinn [17]
3 years ago
15

Factor completly. do not answer if you dont know it please!! ill give u brainliest

Mathematics
2 answers:
mariarad [96]3 years ago
3 0

Answer:

(2x+1)(2x−1)

Step-by-step explanation:

4x^2−1

(2x+1)(2x−1)

Alinara [238K]3 years ago
3 0

Answer:

Since both terms are perfect squares, factor using the difference of squares formula, a-b with the little 2 ontop=(a+b) where a= 2x and b= 1. (2x+1)(2x-1)

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alexandr402 [8]
It should be 54 because height times width
6 0
3 years ago
A ship traveling east at 45 mph is 15 mi from a harbor when another ship leaves the harbor traveling east at 60 mph. How long do
Harman [31]

Answer:

  1 hour

Step-by-step explanation:

I find these easiest to work by considering the initial difference in distance and the speed at with that gap is closing.

__

The gap is 15 miles, the distance the first ship is from harbor when the second ship starts.

The rate of closure is the difference in the speeds of the two ships:

  60 mph -45 mph = 15 mph

Then the closure time is ...

  time = distance/speed

  time = (15 mi)/(15 mi/h) = 1 h

It will take the second ship 1 hour to catch up to the first ship.

7 0
2 years ago
Which choices are equivalent to the exponential expression below? check all that apply. (2/3)^3
rosijanka [135]

Answer:

B. (2/3) x (2/3) x (2/3)

C. 8/27

D. 2^3 /3^3

Step-by-step explanation:

You need to know the following property

\LARGE \left(\frac{a}{b} \right)^c = \frac{a^c}{b^c}

Exponent also means you're multiplying the same number for an 'n' number of times.

For example, 2^3 = 2 * 2 * 2

we multiply it by itself 3 times since 3 is the exponent.

x^y

x is the base, y is the exponent

we read it as x to the power of y

If the exponent is 2, we say it as x squared

If the exponent is 3, we say it as x cubed

4 0
4 years ago
2.283:3<br> What is the answer ?
ehidna [41]

Answer:

0.761

Step-by-step explanation:

first you do 3 divided by 2.2 and get .733 which you round to .7

next you do 3 divided by 2.28 and get .76

last you do 3 divided by 2.283 and get .761

6 0
3 years ago
Read 2 more answers
Divide 169 mi in the ratio 5 : 8.
puteri [66]
5 + 8 = 13

169/13 = 13

13 * 5 = 65

13 * 8 = 104

Thus, 65:104
4 0
3 years ago
Read 2 more answers
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