3 years ago

Round to the nearest tenth 3.2649

Mathematics

1 answer:

katovenus [111]3 years ago

5 0

Answer:

3.3

Step-by-step explanation:

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A price is decreased by 24% and is now £372.40.<br>Work out the original price.

goldfiish [28.3K]

Answer:

Step-by-step explanation:

Subtract the discount from 100 to get the percentage of the original price.

Multiply the final price by 100.

Divide by the percentage in Step One

5 0

3 years ago

The derivative of the function f is given by f′(x)=−3x+4 for all x, and f(−1)=6. Which of the following is an equation of the li

dybincka [34]

Answer:

You are correct. The answer is $y=7x+13$

Step-by-step explanation:

First, we need to plug in our x value to the derviative's equation to find the slope of the line tangent to the graph, f

$f'(x)=-3x+4\\\\f'(-1)=-3(-1)+4\\\\f'(-1)=3+4\\\\f'(-1)=7$

Now that we have found the slope and have a given point: (-1,6) we can use the point slope formula to find the equation of the line tangent to the graph f.

$y-6=7(x+1)\\\\y-6=7x+7\\\\y=7x+13$

3 0

3 years ago

What is X of 4x+6 = 8x+3

Karolina [17]

Answer:

3/4

Step-by-step explanation:

4x+6 = 8x+3

Subtract 4x from both sides to get x on the same side

6 = 4x+3

Subtract 3 from both sides:

3 = 4x

Divide by 4:

x = 3/4

5 0

3 years ago

How to solve <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bdy%7D%7Bdx%7D%20%3D2%7Cx%7C" id="TexFormula1" title="\frac{dy}{dx} =2|x

Archy [21]

dy= 2|x|dx

integral dy= integral 2|x|dx

y= X² + c

3 0

2 years ago

What is the solution for x in the equation?<br> - x + 3/7 = 2x - 25/7

Inessa [10]

Answer:

x=1 1/3

Step-by-step explanation:

in case you don't understand feel free to ask again.

good day

5 0

2 years ago