All categories

4 years ago

Which expressions below are equivent to 2(2x+1)

Mathematics

1 answer:

murzikaleks [220]4 years ago

6 0

Answer:

4x+2

Step-by-step explanation:

2*2x+2*1

4x+2

You might be interested in

Use 1 as a benchmark to compare 6/5 and 5/6

Rashid [163]

6/5 is greater than one by 1/5 while 5/6 is less than one by 1/6.

8 0

3 years ago

The area of a carpet is 36x -12 square inches. If the width of the carpet is 3x - 1 inches, what is the length?

lapo4ka [179]

Answer:

12x

Step-by-step explanation:

area=length×width

length=area/width

=36x-12/3x-1

=12(3x-1)/3x-1

length =12x

3 0

3 years ago

Find The derivative of:(cosx/1+sinx)^3

forsale [732]

Answer:

$-\frac{3 \cdot cos^2x}{(1+sinx)^3}$

Step-by-step explanation:

$y = (\frac{cosx}{1+sinx})^3\\\\\frac{dy}{dx} = 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{dy}{dx}(\frac{cosx}{1+sinx})$ $[ y = x^n\ \ \ => \ \ \ \frac{dy}{dx} = b \cdot x^{n-1} \ ]$

$= 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{(1+sin x(-sinx) - cosx(cosx)}{(1+sinx)^2}\\\\$ $[\ \frac{u}{v} = \frac{v \dcot u'- u \cdot v'}{v^2}\ ]$

$= 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{-sin x-sin^2x- cos^2x}{(1+sinx)^2}\\\\= 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{-sin x- (sin^2x+ cos^2x)}{(1+sinx)^2}\\\\= 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{-sin x-1}{(1+sinx)^2}\\\\= 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{-1 \cdot(sin x+1)}{(1+sinx)^2}\\\\= 3 \cdot (\frac{cosx}{1+sinx})^2 \cdot \frac{-1}{(1+sinx)}\\\\$

$= -3 \cdot \frac{cos^2x}{(1+sinx)^3}$

5 0

3 years ago

NEED HELP ON THIS ASAP!!!!!!

Keith_Richards [23]

Answer: Choice B (If you need to do questions like this in the future i recommend using the desmos graphing calculator online, inputting the equations and comparing them)

8 0

2 years ago

Michael has 2 options to invest $10,000: 1. 4% Simple Interest for 10 years. 2. 3.25% Compound Interest for 10 years. Which will

maksim [4K]

Answer:

help i need the ansewer

Step-by-step explanation:

7 0

4 years ago

Which expressions below are equivent to 2(2x+1)​

Which expressions below are equivent to 2(2x+1)