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Artemon [7]
3 years ago
6

Please choose an answer below. A) 3.4 B) 36.0 C) 38.6 D) 41.2

Mathematics
1 answer:
schepotkina [342]3 years ago
6 0

Answer:

It would be D.

Step-by-step explanation:

Hope this helps!!!

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Please help immediately ​
Burka [1]

Answer:    f'(1)=\dfrac{4}{2y+1}

<u>Step-by-step explanation:</u>

To find the tangent, you need to find the derivative with respect to x.

Then substitute x = 1 into the derivative.

Given:         0 = 2x² - xy - y²

Derivative:  0 = 4x - y' - 2yy'

Solve for y': 2yy' + y' = 4x

                   y'(2y + 1) = 4x

                   y'=\dfrac{4x}{2y+1}

\text{Substitute x = 1:}\quad y'(1)=\dfrac{4}{2y+1}

8 0
3 years ago
Find the area of a circle having a radius of 9 cm
iVinArrow [24]

Answer:

81 pi cm^2

or approximately 254.34 cm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

A = pi (9)^2

A = 81 pi

Using 3.14 as an approximation for pi

A = 81 (3.14)

A =254.34 cm^2

7 0
3 years ago
Read 2 more answers
You purchase a $120 jacket that is on sale for 20% off. How much do you pay for the jacket?
Butoxors [25]

Answer:

$96

Step-by-step explanation:

Good deal!

6 0
2 years ago
Read 2 more answers
When -2(x − 4) + 1 = 7 is solved, the result is:
Sergeu [11.5K]

Answer:

1

Step-by-step explanation:

-2(x-4)+1=7

First Distribute the -2.

-2x+8+1=7

Subtract the 8 and 1 from the whole equation.

-2x=-2

Divide both sides of the equation by -2.

x=1

I hope this helps!

6 0
3 years ago
Read 2 more answers
How many times does 3 fit into 87?
Mars2501 [29]

Answer:

29 times

Step-by-step explanation:

We can find this answer by dividing 87 by 3

87/3 = 29

We can prove this by multiplying 29 times 3 which gives us 87

4 0
2 years ago
Read 2 more answers
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