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AVprozaik [17]
4 years ago
14

I’m plz help fast thanks 16

Mathematics
1 answer:
nataly862011 [7]4 years ago
5 0

Answer:

1/2 <3/4

Step-by-step explanation:

1/2   vs 3/4

We need a common denominator of 4

1/2*2/2   vs   3/4

2/4  vs 3/4

Since the denominators are the same, we compare the numerators

2 <3  so

2/4 < 3/4

1/2 <3/4

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Find an equation of the line tangent to the curve √xy + 4y = 39 at the point (1,9)?
evablogger [386]
Find the derivative of the curve to find the line slope at the given point

sqrt(xy) + 4 dy/dx = 39

0.5(xy)^(-0.5) * (y + x dy/dx) + 4dy/dx=  0

No need to amplify simply plug in the given point ( 1,9)

0.5 ( 1 * 9)^(-0.5)* ( 9 + dy/dx) + 4dy/dx  = 0 

Solve for dy/dx

1/6( 9  + dy/dx)  = -4dy/dx

9 + dy/dx = -24 dy/dx

-25dy/dx = 9

dy/dx = -9/25

as your question implies , you know the rest of the steps. 
7 0
3 years ago
The sum of -9 and 18/2
levacccp [35]

Answer:

0

Step-by-step explanation:

Sum means addition so:

-9 + 18/2

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0

8 0
3 years ago
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Can you solve the complex fraction? 2/5 / 9
andreev551 [17]
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5 0
3 years ago
Help me please! These are due today.
IrinaVladis [17]

Answer:

{x}^{2}  + 3x

Step-by-step explanation:

1.

Area of shaded region = Area of external rectangle - Area of internal rectangle

= 4x(x + 2) - x(3x + 5) \\  = 4 {x}^{2}  + 8x - 3 {x}^{2}  - 5x \\  = 4 {x}^{2}  - 3 {x}^{2}  + 8x - 5x \\  =  {x}^{2}  + 3x \\

2.

Let the width of the rectangle be x inches.

Therefore, length of the rectangle = (x + 3) inches

A.

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=(x + 3)\times x\\=x^2 + 3x\\

B.

Width of rectangle = 4 inches

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Area of rectangle = 7*4 = 28 square inches.

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3 years ago
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Step-by-step explanation:

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3 years ago
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